SHOCK ABSORBER Russian patent published in 2002 - IPC

FIELD: mechanical engineering, instrumentation. SUBSTANCE: invention can be used at development of devices and method of vibration isolation of different objects. Proposed shock absorber has parallel fixed and movable bases with cylindrical rubber bushing placed in between. Rubber bushing is provided with cured-in foreign elements and longitudinal axis square to bases. Shock absorber has permanent magnet installed on fixed base and made in form of hollow cylinder with axial direction of magnetization, and cylindrical ferromagnetic core. Permanent magnet concentrically encloses rubber bushing. Core is freely fitted into through axial hole made in bushing. Foreign elements cured in bushing have the shape of flat closed current- carrying circuits which are uniformly distributed in height of bushing in parallel with bases. EFFECT: improved protection against resonance oscillations owing to provision of adaptive adjustment of parameters of stiffness of shock absorbers. 2 dwg