家电科技 ›› 2020, Vol. 0 ›› Issue (zk): 94-97.doi: 10.19784/j.cnki.issn1672-0172.2020.99.024

• 优秀论文 • 上一篇    下一篇

空调器出风口防护网流致振动噪声问题分析研究

朱标1,2, 郝玉密1,2   

  1. 1.海信家电集团股份有限公司 山东青岛 266100;
    2.海信(山东)空调有限公司 山东青岛 266100
  • 出版日期:2020-11-10 发布日期:2021-01-05
  • 通讯作者: 朱标 zhubiao@hisense.com

Research on flow-induced vibration and noise of guard filter on air conditioner outlet

ZHU Biao1,2, HAO Yumi1,2   

  1. 1. Hisense Home Appliance Group Co., Ltd., Qingdao 266100;
    2. Hisense (Shandong) Air Conditioner Co., Ltd. Qingdao 266100
  • Online:2020-11-10 Published:2021-01-05

摘要: 空调器结构件的流致振动会引起极大的异常噪声问题,极大地影响用户体验和产品的声品质的提升,甚至会破坏结构的强度并引起安全问题。对一种空调器出风口防护网流致振动噪声问题进行研究,首先通过CFD流场仿真的方法对于防护网圆柱绕流卡门涡脱特性进行研究;然后通过CAE分析的方法对防护网进行结构模态分析,确定该防护网异常噪声是流致激励引起结构共振导致;最后对防护网进行结构优化从而改善了该异常噪声问题。

关键词: 卡门涡街, CFD, CAE, 共振

Abstract: The flow-induced vibration of the structural parts of the air conditioner can cause abnormal noise problems, which greatly affect the user experience and the improvement of the sound quality of the product, and even damage the strength of the structure and cause safety problems. By studing the flow-induced vibration and noise problem of guard filter on air-conditioner air outlet. First, the CFD is used to study the vortex characteristics of the flow around the cylindrical guard filter. And then the modal analysis of the cylindrical guard filter is completed by CAE. Modal analysis determined that the abnormal noise of the guard filter was caused by structural resonance caused by flow-induced excitation. Finally, the structure of the guard filter is optimized to improve the abnormal noise problem.

Key words: Karman Vortex, CFD, CAE, Resonance

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