Design and Performance Evaluation of a Vertical VibrationAbsorber using Numerical Simulation and Shock Test

摘要

Vibration/shock affects biggest taking a train subtraction of vehicle and durability decline.Therefore, absorber is used for vibration/shock isolation and various qualities of the material anddesign are applied for isolation. This paper proposes vibration/shock absorber that applies 'Disk’spring. Through comparison with 'Disk' spring that has nonlinearity and coil spring see effectthat nonlinearity of isolation gets in vibration/shock isolation. Coil spring and 'Disk' spring arenon-linear numerical analysis and simulation through theory for this, get and investigatecomparison result through an experiment. Finally, expressed and formulated shock through'Runge-Kutta' method/impact response to nonlinear-vibration-equation of 1 degree of freedomfor numerical analysis. Double half sine pulse of excitation is used and analyzed result throughspectrum response analysis here. Response of disk spring is compared to response of coil springby changing ho/t ratio using computer simulation and the usage of disk spring is increased through analysis of effect of design factors. The purpose of this paper is that the shock responseof disk spring is calculated through numerical simulation and to design the optimal absorberunder the limited condition. And then, the isolation effect was analyzed through the shock test.