六自由度滚筒洗衣机悬挂系统动力学建模与实验

Dynamic Modeling and Experiment of 6 Degrees of Freedom Washing Machine Suspension System

考虑偏心质量的位置对滚筒洗衣机悬挂系统振动的影响,基于拉格朗日方程建立六自由度动力学模型。以不同位置的偏心质量为变量进行仿真,同时进行了振动测量实验,得出振动较大时偏心质量的位置。通过数值仿真结果与实验测量结果的对比,验证了动力学模型的正确性,同时明确了滚筒洗衣机出现最大振动响应时偏心质量的位置和转速区间,为后续减振研究的仿真和实验提供了方向。

In consideration of the influence of the position of eccentric mass on the smooth running of the washing machine suspension system,a six-degree-of-freedom dynamic model is established based on the Lagrange equation.The eccentric mass in different positions is used as the variable for simulation,and the experiment on the vibration measurement is carried out and the position of the eccentric mass at strong vibration is obtained.The numerical simulation results are compared with ones measured by the experiment,which is used to verify the correctness of the dynamic modelling.At the same time,the position of the eccentric mass and speed range in the maximum response of the washing machine vibration are clarified.The direction is pointed out for the simulation and experiment of the subsequent vibration reduction research.