›› 2011, Vol. 31 ›› Issue (5): 168-172.DOI: 10.3969/j.issn.1006-1355-2011.05.040

• 9.振动噪声测试技术 • Previous Articles     Next Articles

Sensitivity Analysis of Engine’s Mounting System Based on Orthogonal Experiments

<FONT face=Verdana><a href="https://nvc.sjtu.edu.cn/EN/article/advancedSearchResult.do?searchSQL=(((ZHANG Wu[Author]) AND 1[Journal]) AND year[Order])" target="_blank">ZHANG Wu</a> 1, 2，CHEN Jian 1，CHEN Ming 3</FONT>   

  1. （ 1. Institute of Sound and Vibration Research, Hefei University of Technology, Hefei 230009, China;2. College of Information and Computer Science, Anhui Agricultural University, Hefei 230036, China;3. College of Foreign Languages, Hefei University of Technology, Hefei 230009, China ）
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-10-18 Published:2011-10-18
  • Contact: ZHANG Wu

采用正交试验的发动机悬置系统灵敏度分析

张 武1，2，陈剑1，陈 鸣3   

  1. （ 1. 合肥工业大学 机械汽车工程学院 噪声振动工程研究所， 合肥 230009；2. 安徽农业大学 信息与计算机学院， 合肥 230036；3. 合肥工业大学 外国语学院， 合肥 230009 ）
  • 通讯作者: 张 武

Abstract: Based on orthogonal experiments, sensitivity analysis of an engine’s mounting system is made to show the influence of the mounting locations on the sixth-order natural frequency and vibration decoupling rate. The mounting coordinates parameters determined by the natural frequency and main vibration coupling are analyzed and identified. The calculation shows that the change of the natural frequency and decoupling rate depends on several mounting coordinate parameters, and the coordinates of the right and back mountings play an important role. The experiment results provide a theoretical basis for the decoupling layout and robust design. This method can be employed for sensitivity analysis of discrete, non-differential or implicit-expression structures, and is of great significance for optimization design of these structures.

Key words: vibration and wave, engine mounting system, orthogonal experiments, sensitivity

摘要： 采用正交试验的灵敏度分析方法，以某款车型的动力总成悬置系统为例，计算动力总成悬置系统6阶固有频率和振动解耦率对悬置位置坐标参数的灵敏度，分析并识别出对悬置系统固有频率和主要方向振动耦合影响较大的悬置坐标参数。计算结果表明，悬置系统固有频率和解耦率的变化是多个悬置位置坐标参数共同作用的结果，该车型右悬置和后悬置的位置坐标参数对动力总成悬置系统六阶固有频率和解耦率影响较大。该方法为动力总成悬置系统的解耦布置、鲁棒设计提供参考。同时，基于正交试验的灵敏度分析方法不依赖于优化算法，可适用于离散、不可微或者隐式表达式的结构的灵敏度分析，对于此类问题的优化设计也具有一定意义。

关键词: 振动与波, 发动机悬置系统, 正交试验, 灵敏度

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