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See also strut (disambiguation)
Strut (disambiguation)

"Strut" can refer to a number of things* A strut is a structural component designed to keep two other components apart.* A strut is vertical rule with no width....
A strut is a structural component designed to resist longitudinal compression
Physical compression

Physical compression is the result of the subjection of a material to compressive stress, resulting in reduction of volume. The opposite of compression is tension ....
. Struts provide outwards-facing support in their lengthwise direction, which can be used to keep two other components separate, performing the opposite function of a tie
Tie (engineering)

A tie is any strong component designed to keep two objects closely linked together.Among the most common of these is the Tropical cyclone or seismic tie used in the Framing of wooden structures....
. They are commonly used in architecture
Architecture

The term architecture can refer to a process, a profession or documentation.As a process, architecture is the activity of designing and construction buildings and other physical structures by a person or a computer, primarily to provide shelter....
 and engineering
Engineering

Engineering is the discipline and profession of applying Technology and science knowledge and utilizing natural laws and physical resources in order to design and implement materials, structures, machines, devices, systems, and process that safely realize a desired objective and meet specified criteria....
, for instance as components of an automobile chassis
Chassis

A chassis consists of a Frame that supports an inanimate object, analogous to an animal's skeleton, for example in a motor vehicle or a firearm....
, where they can be passive braces to reinforce the chassis and/or body, or active components of the suspension.

An automotive suspension
Suspension (vehicle)

Suspension is the term given to the system of spring , shock absorbers and Linkage that connects a vehicle to its wheels. Suspension systems serve a dual purpose ? contributing to the car's car handling and brake for good active safety and driving pleasure, and keeping vehicle occupants comfortable and reasonably well isolated from road no...
 strut combines the primary function of a shock absorber
Shock absorber

A shock absorber in common parlance is a mechanical device designed to smooth out or damping shock impulse, and dissipate kinetic energy....
 (as a damper
Damping

Damping is any effect, either deliberately engendered or inherent to a system, that tends to reduce the amplitude of oscillations of an oscillatory system....
), with the ability to support sideways loads not along its axis of compression, somewhat similar to a sliding pillar
Sliding pillar

A sliding pillar suspension is one in which the stub axle and wheel assembly are attached to a fixed vertical "pillar" or kingpin which slides up and down through a bush or bushes which are attached to the vehicle chassis, usually as part of transverse outrigger assemblies....
 suspension, thus eliminating the need for an upper suspension arm.






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See also strut (disambiguation)
Strut (disambiguation)

"Strut" can refer to a number of things* A strut is a structural component designed to keep two other components apart.* A strut is vertical rule with no width....
A strut is a structural component designed to resist longitudinal compression
Physical compression

Physical compression is the result of the subjection of a material to compressive stress, resulting in reduction of volume. The opposite of compression is tension ....
. Struts provide outwards-facing support in their lengthwise direction, which can be used to keep two other components separate, performing the opposite function of a tie
Tie (engineering)

A tie is any strong component designed to keep two objects closely linked together.Among the most common of these is the Tropical cyclone or seismic tie used in the Framing of wooden structures....
. They are commonly used in architecture
Architecture

The term architecture can refer to a process, a profession or documentation.As a process, architecture is the activity of designing and construction buildings and other physical structures by a person or a computer, primarily to provide shelter....
 and engineering
Engineering

Engineering is the discipline and profession of applying Technology and science knowledge and utilizing natural laws and physical resources in order to design and implement materials, structures, machines, devices, systems, and process that safely realize a desired objective and meet specified criteria....
, for instance as components of an automobile chassis
Chassis

A chassis consists of a Frame that supports an inanimate object, analogous to an animal's skeleton, for example in a motor vehicle or a firearm....
, where they can be passive braces to reinforce the chassis and/or body, or active components of the suspension.

An automotive suspension
Suspension (vehicle)

Suspension is the term given to the system of spring , shock absorbers and Linkage that connects a vehicle to its wheels. Suspension systems serve a dual purpose ? contributing to the car's car handling and brake for good active safety and driving pleasure, and keeping vehicle occupants comfortable and reasonably well isolated from road no...
 strut combines the primary function of a shock absorber
Shock absorber

A shock absorber in common parlance is a mechanical device designed to smooth out or damping shock impulse, and dissipate kinetic energy....
 (as a damper
Damping

Damping is any effect, either deliberately engendered or inherent to a system, that tends to reduce the amplitude of oscillations of an oscillatory system....
), with the ability to support sideways loads not along its axis of compression, somewhat similar to a sliding pillar
Sliding pillar

A sliding pillar suspension is one in which the stub axle and wheel assembly are attached to a fixed vertical "pillar" or kingpin which slides up and down through a bush or bushes which are attached to the vehicle chassis, usually as part of transverse outrigger assemblies....
 suspension, thus eliminating the need for an upper suspension arm. This means that a strut must have a more rugged design, with mounting points near its middle for attachment of such loads.

The most common form of strut in an automobile is the MacPherson strut
MacPherson strut

The MacPherson strut is a type of automobile suspension system which uses the axis of a telescopic damper as the upper steering pivot, widely used in modern vehicles and named after Earl S....
. MacPherson struts are often purchased by the automakers in sets of four completed sub-assemblies: These can be mounted on the car bodies as part of the manufacturers' own assembly operations. The MacPherson strut combines a shock absorber and a spring in a single unit, by means of which each wheel is attached to the car body.

Struts were commonly used in early aircraft
Aircraft

An aircraft is a vehicle which is able to flight by being supported by the air, or in general, the atmosphere, of a planet. Examples include balloons, airplanes and helicopters....
 to support wings, stabilizers, A-frames or triangle control frames (TCF) in gliders and hang gliders, and in landing gear
Landing Gear

Landing Gear is Devin the Dude's fifth studio album. It was released on October 7 2008. It will be his first studio album since signing with the music label Razor & Tie....
. Since the 1930s they were mostly replaced with cantilever
Cantilever

A cantilever is a Beam supported on only one end. The beam carries the load to the support where it is resisted by Moment and shear stress. Cantilever construction allows for overhanging structures without external bracing....
 constructions, and became rarely used, mostly in light aircraft. These structural members are frequently loaded in tension, but may vary between tension and compression as the aircraft maneuvers. However, they are still widely used to attach the landing gear, particularly in retractable-gear aircraft, and provide damping during the takeoff and landing roll; here they are often called oleo struts.


Gallery


See also

  • MacPherson strut
    MacPherson strut

    The MacPherson strut is a type of automobile suspension system which uses the axis of a telescopic damper as the upper steering pivot, widely used in modern vehicles and named after Earl S....
  • Chapman strut
    Chapman strut

    A Chapman strut is an automobile suspension device. Being a strut, it is designed to act as both a shock absorber and a wheel location device....
  • Strut bar
    Strut bar

    A strut bar, strut brace, or strut tower brace is a mostly aftermarket car Suspension accessory usually used in conjunction with MacPherson struts on Monocoque chassis to provide extra stiffness between the strut towers....
  • Jury strut
    Jury strut

    File:Wing Brace strut.JPGThe jury struts on a monoplane are small subsidiary struts that join the main wing struts to the wing.Jury struts are installed to eliminate unwanted resonance and vibration from the main wing struts and also to prevent main strut compression buckling under negative g-force loads in the case of high-wing aircraft....