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Articulated vehicle
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Articulated vehicle
An articulated vehicle is a vehicle which has a permanent or semi-permanent coupling in its construction. This coupling works as a large pivot joint, allowing it to bend and turn more sharply. There are many kinds, from heavy equipment to buses, trams and trains. Steam locomotives were sometimes articulated so the driving wheels could pivot around corners.
In a broader sense, any vehicle towing a trailer (including a semi-trailer) could be described as articulated (which comes from the Latin word articulus, "small joint"). In the UK, an articulated lorry is the combination of a tractor and a trailer, abbreviated to "artic". In the US, it is called a semi-trailer truck, tractor-trailer or semi-truck and is not necessarily considered articulated.
Buses are articulated to allow for a much longer bus that can still navigate within the turning radius of a normal bus. Most buses have one articulation, but some have two.
In the UK, tractor unit and trailer combinations are referred to as articulated lorries, or "artics".
Many train cars are made with articulated connections, sharing a common truck between two cars. This reduces costs, weight, vibration and noise; and also enables higher speed running. One of the first examples of articulated railway carriages were used by the London & North Eastern Railway (LNER) in Great Britain on its London Suburban Trains in the mid-1920s; this rolling stock was designed by Nigel Gresley and built at the LNER's Doncaster Works. The four set "Quad-arts" were one of the very earliest articulated trains, this innovation was to save space. Although not the same as modern high speed trains where all the carriages share common bogies, they are an early form of the now more common design.
Trams and light rail vehicles have been made with articulated designs since the 1950s. Articulated trams, were invented and first used by the Boston Elevated Railway in 1912–13. This was instead of using trailers or multiple units, which had been attempted in the early 1900s. The articulated design allows passengers (and fare inspectors) to move the entire length of the vehicle, whether stopped or in motion.
Front loaders, graders, dump trucks and other vehicles have been made with articulated joints to greatly reduce their turning radius and make a single track when making a turn in a soft surface like mud or sand. (the rear wheels follow the front wheel trajectory) The most common models of articulated haulers are Caterpillar, Volvo, and Terex trucks ranging in tonnage from 25 to 40 ton[which?].
Some military vehicles, including the United States Armed Forces' M561 Gama Goat and the Swedish Bandvagn 206 were engineered with an articulated body for rough terrain capability.
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Articulated vehicle
An articulated vehicle is a vehicle which has a permanent or semi-permanent coupling in its construction. This coupling works as a large pivot joint, allowing it to bend and turn more sharply. There are many kinds, from heavy equipment to buses, trams and trains. Steam locomotives were sometimes articulated so the driving wheels could pivot around corners.
In a broader sense, any vehicle towing a trailer (including a semi-trailer) could be described as articulated (which comes from the Latin word articulus, "small joint"). In the UK, an articulated lorry is the combination of a tractor and a trailer, abbreviated to "artic". In the US, it is called a semi-trailer truck, tractor-trailer or semi-truck and is not necessarily considered articulated.
Buses are articulated to allow for a much longer bus that can still navigate within the turning radius of a normal bus. Most buses have one articulation, but some have two.
In the UK, tractor unit and trailer combinations are referred to as articulated lorries, or "artics".
Many train cars are made with articulated connections, sharing a common truck between two cars. This reduces costs, weight, vibration and noise; and also enables higher speed running. One of the first examples of articulated railway carriages were used by the London & North Eastern Railway (LNER) in Great Britain on its London Suburban Trains in the mid-1920s; this rolling stock was designed by Nigel Gresley and built at the LNER's Doncaster Works. The four set "Quad-arts" were one of the very earliest articulated trains, this innovation was to save space. Although not the same as modern high speed trains where all the carriages share common bogies, they are an early form of the now more common design.
Trams and light rail vehicles have been made with articulated designs since the 1950s. Articulated trams, were invented and first used by the Boston Elevated Railway in 1912–13. This was instead of using trailers or multiple units, which had been attempted in the early 1900s. The articulated design allows passengers (and fare inspectors) to move the entire length of the vehicle, whether stopped or in motion.
Front loaders, graders, dump trucks and other vehicles have been made with articulated joints to greatly reduce their turning radius and make a single track when making a turn in a soft surface like mud or sand. (the rear wheels follow the front wheel trajectory) The most common models of articulated haulers are Caterpillar, Volvo, and Terex trucks ranging in tonnage from 25 to 40 ton[which?].
Some military vehicles, including the United States Armed Forces' M561 Gama Goat and the Swedish Bandvagn 206 were engineered with an articulated body for rough terrain capability.
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