噪声与振动控制

›› 2010, Vol. 30 ›› Issue (3): 156-159.DOI: 10.3969/j.issn.1006-1355.2010.03.041

• 减振降噪设备和器材 • 上一篇    下一篇

《割草机电机隔振垫的优化设计》

姚昊萍1，张建润2   

  1. （1.南京农业大学工学院,南京210031；2.东南大学机械工程学院,南京210096）
  • 收稿日期:2009-07-06 修回日期:1900-01-01 出版日期:2010-06-18 发布日期:2010-06-18
  • 通讯作者: 姚昊萍

《Optimal Design of Motor Vibration Isolator for Control of Mower Exterior Noise》

YAO Hao-ping1，ZHANG Jian-run2   

  1. (1. Colloge of Engineering of Nanjing Agricultural University, Nanjing210031, China；2. School of Mechanical Engineering of Southeast University, Nanjing210096, China)
  • Received:2009-07-06 Revised:1900-01-01 Online:2010-06-18 Published:2010-06-18
  • Contact: YAO Hao-ping

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摘要： 对一款家用割草机的动态及噪声特性进行了测试分析，并利用有限元法和边界元法建立割草机的结构振动和声学模型。针对电机的不平衡引起的割草机机壳振动的辐射噪声这一主要噪声源，采用隔振垫隔离电机振动的方法，提出以隔振垫的刚度和阻尼为优化设计变量,机壳各点平均法向位移响应为目标函数,对隔振垫进行优化。对优化后的结果进行噪声分析，噪声明显下降。

关键词: 振动与波, 隔振垫, 参数优化, 噪声, 有限元分析

Abstract: Dynamic and acoustic characteristic of a certain mower were tested and analyzed in this paper ,and the corresponding model of mower were made by usingthe finite element and boundary element methods. Vibration isolator to connect motor with mower to reduce radiation noise was adopted . In the optimization design ofvibration isolator,stiffiness and damping were used as variablesand average displacement of mower was used as object function.And the result shows that thenoise is reduced effectively.

Key words: vibration and wave, vibration isolator, optimization, noise, finite element analysis

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