Vibration damper for machine part oscillating linear motion - has mass in viscoelastic liq., whose physical parameters meet specified equation

摘要

The vibration damper is intended for damping the oscillating linear motion of a machine component. It comprises two relatively movable parts (1,2;4) having surfaces parallel to the direction of oscillation separated by a gap. The latter is filled with a visco-elastic liquid (5), with a specified modulus of shear rigidity and viscosity. One part (1,2) is fixed (3) to the component and the other one (4) to the damping mass, whilst the effective surface area of the other part does not exceed that of the fixed part. For optimum damping effect over a wide frequency range, the parameters are selected to meet specified equation.