VIBRATING SUPPORT FASTENING BODY TO FRAME OF AUTOMOBILE WITH VARIABLE RIGIDLY CHARACTERISTIC

摘要

FIELD: mechanical engineering.;SUBSTANCE: invention relates to vehicle body-to-frame fastening members. Proposed vibrating support with variable rigidly characteristic has rubber pad 1, base 2 of vibrating support and bushing. Bushing is made movable and provided with self-locking threaded part 3 on upper cylindrical part of which hex head is found to be turned by wrench. Rubber pad 1 in fitted in movable bushing to change length of projecting part of rubber pad 1. Rubber pad 1 changes its vertical rigidity in reverse proportion to length of its part projecting from movable bushing according to formula C_n=EF/l and changes its side rigidly in reverse proportion to cubed length of projecting part according to formula C_τ3EJ/l³ where E is modulus of elasticity of rubber pad, F is area of cross section of rubber pad, J is moment of its inertia, l is length of projecting part of rubber pad.;EFFECT: possibility of manual adjustment of rigidly of vibrating support and possibility of use of one vibrating support on automobiles of one family differing in mass, increased service life of vibrating support.;2 dwg