Hubbry Logo
search
logo
MSC Adams avatar
MSC Adams
MSC Adams
current hub
18342

MSC Adams

logo
Community Hub0 Subscribers
Read side by side
MSC Adams
View on Wikipedia
from Wikipedia

MSC ADAMS (Automated Dynamic Analysis of Mechanical Systems) is a multibody dynamics simulation software system. It is currently owned by MSC Software Corporation. The simulation software solver runs mainly on Fortran and more recently C++ as well.[1] According to the publisher, Adams is the most widely used multibody dynamics simulation software.[2] The software package runs on both Windows and Linux.

1 DOF Pendulum with spring-damper Adams simulation with input vibration

Capabilities

[edit]

Adams has a full graphical user interface to model the entire mechanical assembly in a single window. Graphical computer-aided design tools are used to insert a model of a mechanical system in three-dimensional space or import geometry files such as STEP or IGS. Joints can be added between any two bodies to constrain their motion. Variety of inputs such as velocities, forces, and initial conditions can be added to the system.

Adams simulates the behavior of the system over time and can animate its motion and compute properties such as accelerations, forces, etc. The system can include further complicated dynamic elements like springs, friction, flexible bodies, and contact between bodies.[2] The software also provides extra CAE tools such as design exploration and optimization based on selected parameters. The inputs and outputs of the simulation can be interfaced with Simulink for applications such as control.

Applications

[edit]

The Adams software package is used both in academic research and engineering. The most common usage of the software is analysis of vehicle structure and suspension through the Adams/Car and Adams/Tire modules.[3][4][5] Various types of mechanical systems such as wind turbines,[6] powertrains,[7] and robotic systems.[8]

References

[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

MSC Adams

View on Grokipedia
from Grokipedia
MSC Adams, formally known as the Automatic Dynamic Analysis of Mechanical Systems (ADAMS), is a leading multibody dynamics (MBD) simulation software used by engineers to model and analyze the kinematics, dynamics, and force distribution in complex mechanical systems involving moving parts.[1] Developed originally at the University of Michigan in 1973 as a doctoral project under Milton A. Chace and completed by Nicolae Orlandea, it enables the simulation of nonlinear, real-world physics to validate designs early in the product development process, optimizing performance, safety, and durability.[1] The software originated from foundational research in multibody dynamics at the University of Michigan, evolving from earlier 2D tools like the Dynamic Analysis of Mechanical Networks (DAMN) and Dynamic Response of Articulated Machinery (DRAM).[1] In 1977, Chace and his former students founded Mechanical Dynamics, Inc. (MDI) to commercialize ADAMS, marking its entry into the market as a pioneering tool for 3D multibody simulations.[1] MDI was acquired by MSC Software Corporation in 2002 for approximately $128 million, integrating ADAMS into a broader portfolio of computer-aided engineering (CAE) solutions and enhancing its capabilities with finite element analysis (FEA) tools like MSC Nastran for flexible body modeling.[2] In 2017, MSC Software itself was acquired by Hexagon AB for $834 million, positioning ADAMS within Hexagon's manufacturing intelligence division and expanding its global reach, which in September 2025 announced an agreement to sell its Design & Engineering business, including MSC Software, to Cadence Design Systems for €2.7 billion (approximately $3.1 billion), expected to close in the first quarter of 2026.[3][4] Key features of MSC Adams include its ability to handle large-scale, nonlinear dynamic simulations using Lagrangian formulations and implicit solvers, which compute motions and loads far more efficiently than traditional FEA methods for systems with time-varying constraints.[5] It supports co-simulation of mechanical, hydraulic, pneumatic, and control systems, with optional modules such as Adams Car for vehicle dynamics, Adams Machinery for rotating equipment, and Adams Real Time for hardware-in-the-loop testing.[5] The software runs on Windows and Linux platforms, leveraging high-performance computing for complex models, and is recognized as the world's most widely used MBD and motion analysis tool.[6] MSC Adams finds primary applications in industries requiring precise motion analysis, including automotive (for suspension and crash simulations), aerospace (for rotorcraft and landing gear), and heavy machinery (for drivetrain optimization).[5] Notable users include AgustaWestland for helicopter design validation, demonstrating its role in improving system-level predictions of loads, vibrations, and fatigue.[5] By integrating with other CAE tools, it reduces physical prototyping needs, accelerates development cycles, and enhances product reliability across engineering disciplines.[5]

History

Origins at University of Michigan

Research on multibody system dynamics at the University of Michigan was initiated in 1967 by Professor Milton A. Chace, who focused on developing computational methods for analyzing complex mechanical systems. Chace's work built on his earlier Ph.D. research in vector mathematics for kinematic analysis, aiming to create generalized computer representations of multifreedom, constrained mechanical systems using network-variational approaches. This foundational effort addressed the challenges of simulating time-dependent behaviors in relative coordinates, marking a shift toward automated tools for engineering design.[7][8] By 1969, Chace and his collaborators had advanced early algorithms for three-dimensional multibody simulation, incorporating sparsity-oriented techniques to handle large-scale systems efficiently. These developments emphasized kinematic and dynamic analyses, particularly for intricate applications such as aircraft landing gear, where precise modeling of interactions under load was critical. The research laid the groundwork for handling nonlinear constraints and forces in mechanical networks, influencing subsequent academic and industrial simulations.[7][8] A pivotal contribution came from Nicolae Orlandea, who joined the University of Michigan in 1970 under Chace's supervision and completed his Ph.D. in 1973. Orlandea's doctoral thesis, titled "Node Analogous, Sparsity Oriented Methods for Simulation of Mechanical Dynamic Systems," introduced innovative sparse tableaux formulations and integration methods, such as the Gear algorithm, for automated dynamic analysis. This work formed the core of the ADAMS (Automatic Dynamic Analysis of Mechanical Systems) solver, enabling efficient three-dimensional simulations of multibody dynamics with a focus on real-world engineering problems like landing gear retraction and deployment. Orlandea, recognized as the original architect of ADAMS, passed away in 2023.[9][10][11]

Commercialization by Mechanical Dynamics Corporation

Mechanical Dynamics Corporation (MDI), originally known as Mechanical Dynamics, Inc., was founded in 1977 by University of Michigan alumni, including Milton Chace and Mike Korybalski, to commercialize multibody dynamics simulation technologies emerging from academic research, with significant contributions from Nicolae Orlandea, the original architect of ADAMS.[12][13][9] The company adopted ADAMS as its flagship product in 1978, building on Orlandea's doctoral work from the early 1970s.[8] The first commercial version of ADAMS was released in 1981, marking its transition from a research tool distributed freely through NASA's COSMIC network to a proprietary multibody dynamics software for engineering simulations on mainframe and early workstation computers.[8][9] This release emphasized automated analysis of mechanical systems, enabling users to model complex assemblies with joints, forces, and constraints without extensive manual equation derivation. By the mid-1980s, following the end of non-commercial distribution in 1984, ADAMS gained traction as a standard for virtual prototyping, reducing the need for physical testing in design cycles.[9] Early adoption was prominent in the automotive and aerospace sectors, where ADAMS facilitated simulations of vehicle suspensions and aircraft components; notable examples include an SAE collaborative project analyzing the Chevrolet Malibu's suspension dynamics in the late 1970s and Boeing's evaluation of 747 landing gear behavior.[1][9] These applications demonstrated ADAMS's value in predicting system performance under real-world loads, accelerating development timelines and cost savings for major manufacturers.[1] Throughout the 1980s, MDI focused on enhancements driven by user feedback, including refinements to solver algorithms for greater efficiency in rigid body dynamics simulations and the gradual introduction of graphical user interfaces to simplify model building and visualization.[9] A pivotal advancement was the integration of flexible body modeling in the mid-1980s, based on component mode synthesis techniques, which expanded ADAMS's applicability to durability and vibration analyses beyond purely rigid mechanisms.[9] These improvements solidified ADAMS's position as a leading tool for multibody system analysis during the decade.

Acquisition by MSC Software and Later Developments

In March 2002, MSC Software Corporation acquired Mechanical Dynamics Inc., the developer of the ADAMS multibody dynamics software, for approximately $128 million in a cash tender offer and subsequent merger. This acquisition expanded MSC Software's portfolio in simulation tools and integrated ADAMS into its broader computer-aided engineering (CAE) ecosystem, serving over 10,000 customers globally.[2] Following the acquisition, the software was rebranded as MSC.ADAMS, emphasizing its alignment with MSC's suite of analysis products. A key enhancement came with the release of MSC.ADAMS 2003 in July 2003, which improved integration for flexible body simulations by enabling easier generation of flexible bodies directly from MSC.Nastran models, including pre-stress effects for more accurate dynamic analyses. This version also introduced advanced 3D contact modeling using faceted geometry for faster and more realistic simulations of part interactions.[14] In February 2017, Hexagon AB acquired MSC Software for $834 million on a cash and debt-free basis, with the transaction completing in April 2017. Under Hexagon's ownership, MSC.ADAMS continued to evolve as part of the Manufacturing Intelligence division, benefiting from broader resources for multiphysics and digital twin applications.[3] As of 2025, developments under Hexagon include the expansion of Adams Real Time, a hardware-in-the-loop (HIL) solution that enables software-in-the-loop (SIL), HIL, and advanced driver assistance systems (ADAS) co-simulations to reduce physical prototyping needs by emulating real-time vehicle dynamics. Additionally, the introduction of Adams Car On Demand in August 2025 provides scalable cloud-based simulation capabilities, allowing automotive engineers to run full vehicle dynamics analyses remotely and accelerate design iterations without local high-performance computing resources. In September 2025, Hexagon announced an agreement to sell its Design & Engineering division, including MSC Software, to Cadence Design Systems for €2.7 billion, with the transaction expected to close in the first quarter of 2026.[15][16][4]

Technical Overview

Core Architecture and Programming

MSC Adams employs a hybrid programming approach, with its numerical solvers primarily implemented in Fortran for legacy compatibility and core computational efficiency, while the modern Adams Solver version is written in C++ to enhance performance, robustness, and integration with contemporary software ecosystems. The C++ solver is the default across the Adams product line and is recommended for its superior speed in handling complex multibody dynamics simulations. This dual-language strategy leverages Fortran's strengths in numerical stability for traditional solver routines alongside C++'s object-oriented capabilities for optimized execution.[17][18] The software's core architecture is modular, enabling users to assemble tailored workflows by combining solver engines, preprocessing tools, and postprocessing modules into cohesive simulation environments. This design facilitates scalability, from standalone analyses to enterprise-level integrations, and supports deployment on both Windows and Linux operating systems, including distributions such as Red Hat Enterprise Linux 7.x and later. The modular structure ensures portability across platforms while maintaining consistency in solver behavior and data flow.[19][20] Integration with external tools is a key aspect of Adams' architecture, particularly through co-simulation capabilities with environments like MATLAB and Simulink via the Adams/Controls module. This allows seamless exchange of mechanical system models and control algorithms, where Adams handles multibody dynamics and Simulink manages signal-based controls, enabling iterative design of hybrid systems without custom bridging code. Such interoperability is supported through standardized interfaces that synchronize simulation steps and data transfer in real time.[21][22] For data handling, Adams supports robust import and export of 3D models in standard CAD formats, including STEP (ISO 10303) and IGES, to facilitate geometry transfer from design tools like CATIA or SolidWorks. This capability ensures accurate representation of parametric surfaces, solids, and assemblies in multibody models, with options for tessellation or direct kernel-based translation to preserve fidelity during preprocessing. Export functions similarly allow results to be shared back to CAD systems for design refinements.[23][24]

Simulation Solvers and Methods

MSC Adams employs Lagrange multipliers to enforce constraint equations in multibody dynamics simulations, formulating the system as a set of differential-algebraic equations (DAEs) of index 3. This approach incorporates the Lagrangian of the system, where the equations of motion are augmented with constraint terms:
∂L∂q−ddt(∂L∂q˙)+λTCq=0,\frac{\partial L}{\partial \mathbf{q}} - \frac{d}{dt} \left( \frac{\partial L}{\partial \dot{\mathbf{q}}} \right) + \boldsymbol{\lambda}^T \mathbf{C}_q = \mathbf{0},

with C(q,t)=0\mathbf{C}(\mathbf{q}, t) = \mathbf{0} representing holonomic constraints, Cq\mathbf{C}_q the constraint Jacobian, and λ\boldsymbol{\lambda} the vector of Lagrange multipliers that compute constraint reaction forces.[25] This method ensures accurate handling of joints, motions, and other kinematic constraints in both kinematic and dynamic analyses.[25] For kinematic analyses, which solve for positions and velocities without inertial forces, MSC Adams uses Newton-Raphson iterations to resolve nonlinear constraint equations, typically converging within 25 iterations at an error tolerance of 10−410^{-4}.[25] Dynamic analyses, incorporating forces and accelerations, rely on implicit integrators to solve the resulting DAEs, with the Adams Solver (implemented in C++ for enhanced performance) supporting modes for statics, quasi-statics, and full transients.[25] Key implicit methods include GSTIFF, a variable-step, variable-order backward differentiation formula (BDF) integrator up to sixth order, optimized for stiff systems by controlling displacement and velocity errors (default tolerance 10−410^{-4}); HHT, which applies a low-pass filter with α=−0.3\alpha = -0.3 to damp high-frequency oscillations; and variants like WSTIFF and Newmark (β=0.36\beta = 0.36, γ=0.7\gamma = 0.7).[25] Explicit methods, such as ABAM (up to 12th order Adams-Bashforth-Moulton) and RKF45 (Runge-Kutta-Fehlberg), are available for non-stiff problems but are less common due to stability limitations in multibody contexts.[25] These integrators, often paired with stabilized index-2 (SI2) formulations, allow larger tolerances for velocity and acceleration solutions while maintaining constraint drift control.[25] Contact interactions in MSC Adams are managed through specialized algorithms that model impact and friction without requiring explicit geometric meshing. Impact forces follow nonlinear spring-damper models, such as the IMPACT function F=k⋅ge+c⋅g˙F = k \cdot g^e + c \cdot \dot{g} (where gg is penetration depth, kk stiffness, ee exponent typically 2.2, and cc damping), or the Poisson model F=p⋅g˙⋅h/2F = p \cdot \dot{g} \cdot h/2 (with pp impulse factor and restitution coefficient).[25] Friction employs a Coulomb model distinguishing static (μs\mu_s) and dynamic (μd\mu_d) coefficients, handling stiction, sliding, and transitions via velocity-based transitions and torque calculations like T=(2/3)RFnT = (2/3) R F_n for rotational cases.[25] Augmented Lagrangian or penalty methods augment these for better convergence, reducing penetration errors in stiff contacts.[25] Flexible bodies are integrated using modal methods, where finite element models are reduced to modal neutral files (MNF) containing mode shapes and frequencies. The Craig-Bampton component mode synthesis transforms the system into modal coordinates q\mathbf{q}, yielding equations like M^q¨+K^q=f\hat{M} \ddot{\mathbf{q}} + \hat{K} \mathbf{q} = \mathbf{f}, with damping via critical damping ratios (CRATIO) up to specified frequencies (FXFREQ).[25] The FLEX_BODY statement specifies active modes (NMODES) and load matrices, enabling linear or nonlinear flexible elements in contact with rigid bodies while preserving computational efficiency.[25] Optimization routines in MSC Adams target design parameters by minimizing objectives subject to constraints, leveraging both gradient-based and stochastic approaches. Gradient-based methods include sequential quadratic programming (SQP) for faster convergence on smooth problems, modified method of feasible directions (MMFD) for robustness, sequential linear programming (SLP), and sequential unconstrained minimization technique (SUMT).[26] For global search, the stochastic design improvement (SDI) algorithm, akin to genetic methods, iteratively generates random trial designs around current points and selects improvements based on fitness.[26] Multi-objective optimization uses cost functions like total deviation or worst-case minimization, with adjustable tolerances and iteration limits, often integrated with design of experiments (DOE) via response surface models for efficient parameter tuning.[26]

Features and Capabilities

Modeling and Visualization Tools

MSC Adams provides a comprehensive 3D graphical user interface (GUI) through Adams/View, enabling users to build mechanical models by creating rigid and flexible parts, defining joints, and assembling complex systems interactively. Parts can be constructed using geometric primitives such as boxes, cylinders, spheres, links, plates, extrusions, and revolutions, with dimensions specified via dialog boxes or direct manipulation in the view window; for instance, a box part is defined by its width, length, depth, and alignment relative to a coordinate system.[27] Joints, which connect parts and constrain their relative motion, include types like revolute (for rotational freedom about one axis), prismatic (for translational motion along one axis), cylindrical, spherical, and planar, created by selecting attachment points (markers) on bodies and specifying orientations such as normal to the grid or along a picked axis.[27] Assemblies are formed by linking multiple parts via these joints or constraints, with tools like the Database Navigator allowing hierarchical organization into subsystems and the Merge Two Models utility facilitating the integration of imported components while preserving structure.[27] The software supports the application of various elements to define interactions within models, including single- and multi-component forces and torques that can be constant, function-based, or tied to motion; translational and rotational spring-dampers with customizable stiffness and damping coefficients (e.g., nonlinear via splines); and bushings modeled as flexible connectors with stiffness and damping properties across six degrees of freedom, attached between markers on parts.[27] Pre-processing tools allow for the import of meshes in formats like STL, STEP, IGES, Parasolid, and modal neutral files (MNF) to represent flexible bodies, with options to scale, orient, and integrate them into the assembly; body properties such as mass, center of mass, and inertia tensor are defined explicitly through the Part Properties dialog or calculated automatically from geometry and material assignments (defaulting to steel with density 7801 kg/m³).[27][28] Visualization capabilities in Adams/View facilitate intuitive model inspection and result review, featuring real-time rendering modes such as wireframe, shaded, and smooth-shaded for dynamic display during construction and simulation.[27] Animation playback tools enable replay of simulations with adjustable speed, frame rates, and subset selection, including path tracing and mode shape animations to visualize deformations over time (e.g., three cycles by default).[27] Plot generation supports creating motion graphs, such as strip charts for displacements, velocities, or forces versus time, using measures defined on objects or joints, with options to overlay multiple curves or export to Adams PostProcessor for advanced analysis; real-time updates during interactive simulations display evolving plots alongside the 3D view.[27][28] These tools integrate seamlessly with the simulation solvers to provide immediate feedback on model behavior without requiring separate post-processing steps.[27]

Analysis and Optimization Functions

MSC Adams supports a range of analysis functions to evaluate mechanical systems, including static simulations that establish equilibrium conditions by applying forces and constraints to compute loads, stresses, and displacements without accounting for velocities or accelerations.[25] These simulations are particularly useful for steady-state assessments where initial conditions are iteratively balanced to achieve force equilibrium, providing foundational insights into system stability before dynamic evaluations.[25] Quasi-static simulations extend this capability by modeling gradual changes over time through a series of equilibrium states, computing evolving loads, stresses, and displacements while neglecting inertial effects from velocities and accelerations.[25] This approach simulates slow processes, such as incremental loading, by advancing through specified time steps and maintaining balance at each interval, which is ideal for analyzing controlled, low-speed motions in multibody systems.[25] Transient dynamic simulations capture full time-varying behavior, integrating forces, velocities, accelerations, and motions to assess dynamic responses like vibrations and impacts across mechanical assemblies.[25] These analyses compute comprehensive outputs, including loads and stresses under high-speed or oscillatory conditions, enabling engineers to predict real-world performance in complex, nonlinear environments.[25][29] For design exploration, MSC Adams incorporates parametric studies that systematically vary model parameters—such as dimensions or material properties—to evaluate their impact on system responses, facilitating iterative improvements in performance, safety, and efficiency.[26] Complementing this, design of experiments (DOE) tools in Adams Insight offer structured methodologies, including full factorial, fractional factorial, Plackett-Burman, Box-Behnken, central composite, D-optimal, and Latin hypercube designs, to efficiently screen factors and model response surfaces with minimal simulations.[26] These DOE strategies, such as screening for factor identification or response surface for approximation, reduce computational demands while uncovering key interactions in multibody dynamics.[26] Post-processing functions in MSC Adams enable detailed visualization of simulation results, generating graphs and plots for quantities like velocities, accelerations, and energy balances to assess system behavior over time or across parameter variations.[29] Tools within Adams Insight further enhance this by producing scatter plots, histograms, correlation matrices, and statistical summaries (e.g., ANOVA and linear regression outputs) to interpret dynamic metrics and validate energy conservation in simulations.[26] Results can be exported in formats like HTML or spreadsheets for collaborative review, ensuring actionable insights from transient and quasi-static analyses.[26] Sensitivity analysis identifies critical parameters influencing system performance by quantifying their effects on responses through statistical measures like Pearson or Spearman correlations and regression fitting.[26] Integrated with DOE results, this function highlights dominant factors—such as joint stiffness or force magnitudes—affecting motions or loads, guiding targeted optimizations without exhaustive testing.[26] For instance, it can reveal how variations in a single parameter propagate to accelerations or energy dissipation, prioritizing design refinements for enhanced reliability.[26]

Specialized Modules

Vehicle and Tire Dynamics Modules

The Vehicle and Tire Dynamics Modules in MSC Adams provide specialized tools for simulating automotive systems, enabling engineers to model and analyze vehicle behavior under realistic operating conditions. Adams/Car is a core module designed for full vehicle suspension and steering system modeling, allowing users to construct virtual prototypes of complete vehicles and subsystems using an extensive library of joints, constraints, and components such as bushings, springs, and dampers.[30] It supports refinement of models with features like flexibility, friction, slip, and actuators to capture nonlinear behaviors accurately.[30] Through Adams/Car, engineers can perform comprehensive ride and handling analyses, including suspension kinematics, steering response, and full-vehicle maneuvers like cornering or lane changes, which mimic physical lab or track testing environments.[30] Adams/Tire complements Adams/Car by focusing on tire force and moment calculations essential for vehicle dynamics simulations. It computes key outputs such as longitudinal force (F_x), lateral force (F_y), vertical load (F_z), overturning moment (M_x), rolling resistance moment (M_y), and aligning moment (M_z), based on inputs like slip angle, camber angle, normal load, and inflation pressure.[31] The module supports advanced tire models, including FTire for 3D dynamics with a flexible ring approach suitable for ride comfort and durability up to 120 Hz frequencies, and variants of the Pacejka Magic Formula (e.g., PAC2002 for steady-state and transient handling up to 15-80 Hz, PAC-MC for motorcycles with camber effects up to 60° inclination).[31] These models enable accurate prediction of tire-soil interactions, combined slip conditions, and transient responses during maneuvers like braking, acceleration, and steering.[31] These modules facilitate simulations critical to vehicle performance and safety, including durability assessments through nonlinear road load histories and fatigue analysis on suspension components.[30] For crash avoidance and active safety systems, Adams/Car integrates control algorithms and sensors to evaluate scenarios like emergency braking or stability control, providing linear and nonlinear results for system validation.[30] Contact modeling in both modules handles 2D and 3D interactions between flexible and rigid bodies, supporting quasi-static and dynamic tests for enhanced prediction of failure modes.[30][31] Integration with road surface models extends the realism of these simulations, allowing evaluation of vehicle responses on diverse terrains. Adams/Car and Adams/Tire support 2D roads, 3D spline or shell surfaces, and formats like OpenCRG for high-resolution pavement and off-road profiles, including perturbations such as potholes or crown effects.[30] This enables testing of ride quality on uneven surfaces and durability under off-road conditions, with Adams/Tire's contact methods (e.g., 3D enveloping) ensuring precise force transmission from road irregularities to the vehicle chassis.[31]

Controls and Multiphysics Extensions

Adams/Controls is an add-on module that enables the integration of control systems into multibody dynamics models within Adams View or Adams Solver, facilitating co-simulation with external tools like MATLAB/Simulink.[32] It supports the modeling of sensors and actuators by defining plant inputs and outputs as state variables, allowing for the creation of closed-loop feedback systems where control logic responds to mechanical motion.[32] Co-simulation occurs at fixed time intervals, with options for zero-order hold or linear interpolation/extrapolation to exchange data between the Adams mechanical model and the control system, ensuring accurate representation of dynamic interactions.[32] Additionally, it imports control systems from Easy5 or MATLAB via Real-Time Workshop or FMU exports compliant with FMI standards (versions 1.0 and 2.0), supporting both linear and nonlinear analyses.[32] Adams/Flex extends Adams simulations by incorporating flexible body dynamics, replacing rigid bodies with deformable ones derived from finite element analysis (FEA).[33] It integrates modal neutral files (MNF) generated from FEA tools such as MSC Nastran, capturing the body's modal properties including mass, stiffness, and damping for component mode synthesis.[33] Users import the MNF into Adams View, customize modal content by enabling or disabling modes based on frequency thresholds (e.g., retaining modes below 10,000 Hz), and connect flexible bodies to rigid components using joints or constraints.[33] This approach allows runtime switching between rigid and flexible representations to balance computational efficiency and accuracy during simulations of structural deformations under dynamic loads.[33] Multiphysics capabilities in Adams are achieved through co-simulation frameworks that couple multibody dynamics with other disciplines, such as fluid dynamics via links to CFD solvers.[34] The MSC CoSim engine facilitates direct integration of Adams models with tools like scFLOW or scSTREAM for aerodynamics and hydrodynamics simulations, enabling the exchange of forces and motions between mechanical systems and fluid flows, as seen in applications modeling pump hydrodynamics or vehicle aerodynamics.[34] This coupling supports chained or simultaneous simulations, reducing computation time by up to 90% in combined analyses with FEA tools like MSC Nastran for structural responses.[34] FMI compliance ensures seamless data transfer, allowing Adams to contribute motion data to CFD while receiving aerodynamic or hydrodynamic loads in return.[34] Adams Real Time provides extensions for real-time simulation, optimizing Adams models for hardware-in-the-loop (HIL) and software-in-the-loop (SIL) testing in environments like robotics and heavy machinery.[15] It uses fixed-step integrators (e.g., GSTIFF or HHT with step sizes around 0.005 seconds) and exports FMUs for integration with real-time platforms such as SIMulation Workbench or VI-grade simulators, ensuring deterministic performance faster than real-time (e.g., RTI <1).[35] Model preparation involves defining inputs/outputs via Adams/Controls, enabling multi-threading, and minimizing complexity (e.g., using local tire solvers), which allows parametric tuning of mechanical parameters during HIL tests with physical hardware like steering or braking actuators.[15] This supports high-fidelity validation of control strategies without full physical prototypes, applicable to robotic manipulators and machinery dynamics.[15]

Applications

Industrial Engineering Uses

In the automotive industry, MSC Adams is extensively applied for suspension design, enabling engineers to simulate vehicle ride and handling characteristics under various road conditions. For instance, Volvo utilized Adams in conjunction with Marc for co-simulation of the S80 front suspension, accurately predicting behavior during a Level 2 skid against a curb load case, which helped validate design performance without extensive physical testing.[36] Similarly, in analyzing tandem axle rubber suspensions for commercial vehicles, Adams models incorporate compliances and nonlinear behaviors to evaluate load distribution and durability, reducing prototyping iterations.[37] For powertrain optimization, Adams facilitates coupled simulations with tools like GT-SUITE to assess complete vehicle dynamics, including torque distribution and vibration isolation in mounts. A robust optimization approach using Adams for two-cylinder powertrain mounts in commercial vehicles demonstrated improved noise, vibration, and harshness (NVH) performance by selecting mounts that minimize transmitted forces under varying engine loads.[38][39] In aerospace engineering, MSC Adams supports landing gear drop tests by modeling multi-body interactions to predict impact loads and structural responses during certification processes. Studies on commuter aircraft landing gear have shown that Adams simulations yield ground reaction load factors differing by only 3.08% from SolidWorks Motion Analysis, confirming its reliability for virtual drop tests that assess shock absorption and energy dissipation.[40] This approach allows for the evaluation of gear kinematics and flexible body effects, ensuring compliance with regulatory standards like FAR 25.561 without full-scale physical drops. For satellite deployment mechanisms, Adams is used to simulate articulated systems under microgravity conditions. Within manufacturing, MSC Adams aids in robotics arm kinematics by enabling forward and inverse kinematic simulations for industrial manipulators, optimizing reach and precision in assembly lines. For PUMA robot arms, Adams-based inverse kinematics analysis has been employed to compute joint angles for end-effector positioning, facilitating path planning in automated manufacturing tasks like welding or material handling.[41] This reduces setup time and enhances accuracy in high-volume production environments. In wind turbine blade dynamics, Adams performs aeroelastic simulations to assess blade flapwise and edgewise vibrations under turbulent winds, integrating flexible body models with aerodynamic loads. Research on horizontal-axis turbines using Adams has revealed critical load peaks during extreme gusts, guiding blade root stress optimizations to improve fatigue life and operational reliability in utility-scale farms.[42] In the energy sector, MSC Adams simulates offshore platform stability for floating wind turbines, capturing coupled hydro-aero-servo-elastic responses to waves and winds. For transmission systems, Adams models gear trains and planetary mechanisms to evaluate torque transmission efficiency and backlash under operational loads.

Academic and Research Applications

MSC Adams is widely utilized in university curricula to teach multibody dynamics and virtual prototyping, providing students with hands-on experience in simulating mechanical systems. The Adams Student Edition, a free version tailored for educational purposes, enables learners to model kinematics, statics, quasi-statics, and dynamics, allowing them to analyze loads and forces in virtual prototypes without the costs associated with physical testing.[6] This tool is integrated into certification courses and online programs focused on multibody dynamics, where students apply Adams to design and validate mechanical assemblies, fostering skills in system-level simulation.[43] In research, MSC Adams supports advanced studies in biomechanics, particularly for modeling human joints and musculoskeletal systems. For instance, researchers have developed multibody dynamic simulations of knee contact mechanics using Adams, incorporating MRI and CT data to evaluate natural and artificial joint behaviors under load.[44] Similarly, anatomically accurate models of the elbow joint have been created in Adams to assess muscle forces and joint stability during motion, validated against experimental kinematic data.[45] These applications highlight Adams' role in enabling precise, physics-based predictions of human movement for ergonomic and medical research. In renewable energy, Adams facilitates the simulation of wave energy converters, such as multi-body models of rolling mass energy harvesters that capture oceanic motion for power generation.[46] By modeling frame dynamics and wave excitation in a single-degree-of-freedom system, these simulations optimize device efficiency and durability in harsh marine environments.[47] MSC Adams contributes significantly to open academic publications, serving as a foundational tool in thousands of peer-reviewed papers on dynamics and simulation across engineering disciplines. Its integration in research has advanced non-commercial innovations, from biomechanical analysis to energy systems, by providing robust, verifiable modeling capabilities.[48] In student competitions, Adams is extensively employed for vehicle design validation, notably in Formula SAE events where teams use Adams Car to simulate full-vehicle dynamics. This includes optimizing suspension parameters, tire interactions, and overall performance under track conditions, with free software bundles and FSAE-specific templates provided to enhance competitive edge.[49] Such applications bridge academic learning with practical engineering challenges, preparing students for industry-level prototyping.

References

  1. History of Multibody Dynamics in the U.S. - ASME Digital Collection
  2. MSC Software Acquires Mechanical Dynamics - Mergr
  3. Hexagon enters into agreement to acquire MSC Software, a leading ...
  4. Adams | Hexagon
  5. Adams student edition | Hexagon
  6. [PDF] Introduction - Elsevier
  7. An Important Chapter in the History of Multibody System Dynamics
  8. Multibody Systems History of ADAMS | J. Comput. Nonlinear Dynam.
  9. [PDF] Mechanical System Simulation Using Adams - SDC Publications
  10. New gift will support two existing funds at ME
  11. New Endowed Professorship - MSU College of Engineering
  12. MSC.SOFTWARE ANNOUNCES RELEASE OF MSC.ADAMS 2003
  13. Adams Real Time | Hexagon
  14. Webinar - Adams Car on Demand (Cloud Simulation) - Hexagon
  15. [PDF] Adams 2022.4 - Hexagon
  16. Adams Solver C++ vs. FORTRAN - Nexus by Hexagon
  17. [PDF] Adams 2021.2 - Hexagon
  18. MSC Adams – University software service
  19. Adams/Controls - MATLAB & Simulink - MathWorks
  20. [PDF] Adams 2021 - Getting Started: Adams Controls - Hexagon
  21. [PDF] Adams 2024.2 - Hexagon
  22. Import CAD Files Into ADAMS | PDF | Computer Aided Design - Scribd
  23. [PDF] Adams 2021.0.2 - Adams Solver User's Guide
  24. [PDF] Adams 2023.2 - Hexagon MI Documentation Center
  25. [PDF] Adams 2023.2 - Hexagon
  26. [PDF] Adams 2020 - Hexagon
  27. Adams | Hexagon
  28. Adams Car | Hexagon
  29. [PDF] Adams 2021.0.2 - Adams Tire User's Guide
  30. [PDF] Adams 2021.1 - Hexagon
  31. [PDF] Adams 2021 - Getting Started: Adams Flex - Hexagon
  32. MSC CoSim | Hexagon
  33. [PDF] Adams 2020 FP1 - Hexagon MI Documentation Center
  34. Case Study: Volvo and MSC Software | Vehicle Dynamics International
  35. Multibody Dynamics Analysis of Tandem Axle Rubber Suspension ...
  36. Coupled Powertrain and Vehicle Analysis - MSC Software
  37. Commercial Vehicle Two Cylinder Powertrain Mount Selection ...
  38. Comparison Virtual Landing Gear Drop Test for Commuter Aircraft ...
  39. [PDF] Small Mechanisms for CubeSat Satellites – Antenna and Solar Array ...
  40. inverse kinematics analysis of a puma robot by using msc adams
  41. Aeroelastic analysis of wind turbine blades based on modified strip ...
  42. [PDF] Multibody dynamics simulation of gear train using MSC ADAMS
  43. MSC Multibody Dynamics Certification Course - DIIR
  44. Multibody dynamic simulation of knee contact mechanics
  45. Musculoskeletal Model Development of the Elbow Joint with an ...
  46. Electromagnetic rolling mass wave energy harvester for oceanic ...
  47. Electromagnetic rolling mass wave energy harvester for ... - EPJ ST
  48. (PDF) Development of a Model of the Muscle Skeletal System using ...
  49. Student competitions | Hexagon
User Avatar
No comments yet.