南京理工大学学报（自然科学版）Issue(6)：802-810,9.
悬挂式惯性振动设备多场耦合瞬态过程分析
Transient analysis of multi-field coupling on suspension inertial vibration machine
摘要
Abstract
To study the generating and inhibiting mechanism of the starting transient resonance in suspension vibration machines,a beam mechanics model of flexible suspenders with large lateral de-formation and axial force is proposed considering geometric nonlinearity. The multi-field coupling transient starting process of a suspension vibration machine is numerical simulated based on the transient starting theory of asynchronous motors. A nonlinear beam mechanics model of a flexible suspender is established using nonlinear elasticity theory and Euler-Bernoulli theory and numerically solved,and a nonlinear elasticity characteristic curve of lateral deformation on the free end of the flexible suspender is obtained. Considering the transient starting of asynchronous motors,a rigid,soft and electric multi-field coupling mathematical model during starting period is established. The simulation results reveal the generating mechanism of the starting transient resonance and the inhibiting mechanism of starting transient resonance of eccentricity self-adjustable inertial exciter. Under the same condition,the vibration attenuation time of electromagnetic torque of inertial exciter is about 0. 5 s,and that of self-adjustable inertial exciter is below 0. 2 s,the maximum instantaneous amplitude of inertial exciter is 133. 89 mm,and that of self-adjustable inertial exciter is 90. 6 mm. The transient resonance of self-adjustable inertial exciter is restrained well.关键词
悬挂/振动设备/多场耦合/瞬态/几何非线性/柔性吊杆/异步电机/非线性弹性理论Key words
suspension/vibration machines/multi-field coupling/transience/geometric nonlinearity/flexible suspenders/asynchronous motors/nonlinear elasticity theory分类
机械制造引用本文复制引用
邱明,廖振强,李佳圣,宋杰..悬挂式惯性振动设备多场耦合瞬态过程分析[J].南京理工大学学报（自然科学版）,2014,(6):802-810,9.基金项目
国家自然科学基金(51376090 （）
51375241) （）
