A strut is a structural component commonly found in engineering, aeronautics, architecture and anatomy. Struts generally work by resisting longitudinal compression, but they may also serve in tension.
Struts on the undercarriage, wings and tailplane of an Antonov An-2 biplane
ORI strut, off-road application of strut
Compression strut on Piper Pawnee (low-wing aircraft)
A shock absorber or damper is a mechanical or hydraulic device designed to absorb and damp shock impulses. It does this by converting the kinetic energy of the shock into another form of energy which
Strut
…These can be mounted on the car bodies as part of the manufacturers' own assembly operations. A MacPherson strut combines the primary function of a shock absorber (as a damper), with the ability to support sideways loads not along its axis of compression, somewhat similar to a sliding pillar suspension, thus…
Miniature oil-filled coilover shock components for scale cars
Diagram of the main components of a twin-tube and mono-tube shock absorber
Absorber with remote-reservoir connected rigidly, compared to most shock absorbers. It uses a diaphragm instead of a membrane, and does not contain a control valve for expansion of the pneumatic chamber. Description: 1) Sheath and gas tank 2) Stem 3) Snap rings 4) Plate bearing spring 5) Spring 6) End cap and preload adjustment 7) Cap gas, present in versions both with or without gas valve (inverted profile) 8) Mobile diaphragm