家电科技 ›› 2021, Vol. 0 ›› Issue (1): 96-101.doi: 10.19784/j.cnki.issn1672-0172.2021.01.017

• 论文 • 上一篇    下一篇

基于ANSYS仿真的温度对洗碗机固频的影响研究及噪声优化

何志超, 王晓妮, 顾然升, 赫家宽, 王领, 朱剑锋   

  1. 珠海格力电器股份有限公司 广东珠海 519070
  • 发布日期:2021-03-02
  • 通讯作者: 王晓妮,E-mail:xiao_ni08@163.com
  • 作者简介:何志超,学士,研究方向:噪声与振动,地址:广东省珠海市香洲区,珠海格力电器股份有限公司。E-mail:402501717@qq.com。

Research on the influence of temperature on dishwasher fixed frequency based on ANSYS simulation and noise optimization

HE Zhichao, WANG Xiaoni, GU Ransheng, HE Jiakuan, WANG Ling, ZHU Jianfeng   

  1. Zhuhai Gree Electric Appliances Co., Ltd. Zhuhai 519070
  • Published:2021-03-02

摘要: 针对洗碗机洗涤模式下低频噪声,发现其峰值随工作温度波动峰值而呈现,研究分析得到其零部件固频与温度的关系,并使用LMS软件进行模态、ODS测试,再使用ANSYS15.0仿真软件,发现内胆100 Hz固频振型图振动强烈且与两倍工频共振,根据分析结果对具体结构进行优化设计,降低了洗碗机的结构共振点噪声13 dB。

关键词: 洗碗机, 噪声, 振动, 温度, 固有频率

Abstract: For the low-frequency noise in the washing mode, it is found that its peak value appears with the peak value of the working temperature fluctuation. The relationship between the fixed frequency and temperature of its parts is researched and analyzed, and the LMS software is used for modal and ODS tests, and then ANSYS 15.0. The simulation software found that the 100 Hz solid frequency mode diagram of the inner tank vibrated strongly and resonated with twice the power frequency. According to the analysis results, the specific structure was optimized and the noise at the resonance point of the dishwasher was reduced by 13 dB.

Key words: Dishwasher, Noise, Vibration, Temperature, Natural frequency

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