新型倒立摆悬挂结构滚筒洗衣机振动特性研究

摘要

In order to explore the dynamic characteristics of a new type horizontal axis washing machine with inverted pendulum suspension structure, the vibration characteristics were studied.Firstly, the force analysis of the suspension system was carried out, the axial force and tangential force of the dampers were discussed and the mechanical description was established.Furthermore, the vibration model of the roller washing machine was established by virtual prototype, the suspension system description was integrated into the whole machine through the secondary development, and the correctness of the simulation was verified through experiments.Finally, the dynamic characteristics of the traditional structure, the improved suspension structure and the inverted pendulum structure were compared.The results show that the new type washing machine has a marked improvement on transient vibration of dehydration of the washing machine. It is of great significance to vibration and noise reduction of the horizontal axis washing machine.%为探究新型倒立摆悬挂结构滚筒洗衣机动力学特性,对其展开振动特性研究.首先对其悬挂系统进行了受力分析,讨论了阻尼器的轴向力和切向力组成,并建立了其力学描述;进而,采用虚拟样机建立了滚筒洗衣机振动模型,通过二次开发将悬挂系统描述融入整机,并通过实验验证了仿真模型的正确性;最后,仿真对比传统结构、改进的悬挂结构以及倒立摆式结构的动力学特性.结果表明新型结构对滚筒洗衣机脱水瞬态振动具有明显的改善作用.该研究对滚筒洗衣机的减振降噪具有一定意义.