To solve the influence of the resonance effect of the cropping machine on the crack expansion life,the resonance factor was proposed herein.

Assistant bearing with its vibration effect in active magnetic bearing system;

Measurement and appraisal of the vibration influence and destruction of engineering construction upon multi-storied building are urgent and important work in present city construction.

In-situ tests and analyses on vibration influences during mud ground improvement with static-dynamic drainage consolidation;

Traditional statistical integration index weaving and index system constructing have some limitation at factor-effect analysis,this paper adapts covariation effect decomposition method to weave integration index and construct index system.

Definitions and correlation analyses for background response and resonant response;

Analytical approach considering modal coupling effects for buffeting resonant response of large-span roof structures;

In this paper, a qualitative research is carried out on the role of damp absorber controlling the resonant response of the electric circuit plate, with the analytical model of clamped beam attached with a damp absorber.