抄録
This paper deals with impact vibration in a mass-spring system for two-degree-of-freedom excited by periodic force with arbitrary functions. The analytical model is steady impact vibration for two-degree-of- freedom having two masses in which one mass is subjected to an exciting vibration. Then the restoring force, which has characteristics of an unsymmetric piecewise-linear system, collides elastically to anather mass when amptitude of the mass increases farther than clearance. In order to analyze resulting vibration for the main resonance, the Fourier series method is applied and is analyzed for this system. Next, following the theoretical analysis, numerical calculations are performed, and the resonance curves are made by using resulting vibration. Effects of amplitude ratio of excitation, stiffness of clamped spring and mass ratio on the resonance curves are shown by numerical results. For verification of the analytical results, analog experiments are performed by using simulator, and numerical results are compared with analog results on the resonance curves. The analytical results are in a fairy good agreement with the simulated ones.
