摘要
为建立波轮式全自动洗衣机(以下简称波轮式洗衣机)显含悬挂系统设计参数的振动模型,首先分析了波轮式洗衣机组成结构,对各部件分类描述,并推导出相应的动能描述形式;进而在分析悬挂系统作用力成分的基础上,建立了悬挂系统空气动力学模型与摩擦模型,对其计算结果进行了讨论,并与实验结果进行了对比,两者非常接近;最后,结合悬挂系统模型,并引入液体平衡环的稳态平衡机理,应用第二类Lagrange方程,建立了整机振动模型。根据最小势能原理,应用遗传算法估算整机静平衡位置,在此基础上,采用四阶Runge-Kutta法求解整机运动轨迹,给出了仿真结果并分析了系统振动与悬挂系统中一些设计参数间的关系。
A Vibration model combined with an aerodynamic model and a tribo-logical model is developed for a vertical automatic washing machne(VAWM).The structure of the(VAWM) is analyzed at first,and its componetnts are classified and formulated into two different kinds.Then,forces that act on the suspension system are analyzed,and their parameters are involved in the aerodynamic model and the tribological model.Simulation results of the two models show faithful agreements with those of experiments.Based on these,with the help of lagrange's equation,the vibration model for the(VAWM) is developed.According to the principle of minimum potential energy,the genetic algorithm is used to estimate the initial position of the whole system,and the Runge-Kutta method is employed to solve the vibration model.Simulation results show the vibration model proposed is valuable for the suspension design of VAWMs.
出处
《振动与冲击》
EI
CSCD
北大核心
2008年第1期159-162,166,共5页
Journal of Vibration and Shock
