东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2013, Vol. 34 ›› Issue (3): 408-412.DOI: -

• 机械工程 • 上一篇    下一篇

基于热分析的齿轮模态及共振可靠性灵敏度研究

王宇宁1，孙志礼1，杨强1，杜永英1,2   

  1. (1.东北大学机械工程与自动化学院，辽宁沈阳110819；2.沈阳化工大学机械工程学院，辽宁沈阳110142)
  • 收稿日期:2012-09-10 修回日期:2012-09-10 出版日期:2013-03-15 发布日期:2013-01-26
  • 通讯作者: 王宇宁
  • 作者简介:王宇宁(1982-)，男，辽宁沈阳人，东北大学博士研究生；孙志礼(1957-)，男，山东巨野人，东北大学教授，博士生导师.
  • 基金资助:
    航空科学基金资助项目(20110450002).

Study on the Gear Mode and Resonance Reliability Sensitivity Based on Thermal Analysis

WANG Yuning1， SUN Zhili1， YANG Qiang1， DU Yongying1,2   

  1. 1. School of Mechanical Engineering ＆ Automation， Northeastern University， Shenyang 110819， China; 2. School of Mechanical Engineering， Shenyang University of Chemical Technology， Shenyang 110142， China.
  • Received:2012-09-10 Revised:2012-09-10 Online:2013-03-15 Published:2013-01-26
  • Contact: WANG Yuning
  • About author:-
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摘要： 为了研究温度对齿轮结构模态的影响及程度，在齿轮热-结构耦合分析的基础上对齿轮进行了模态分析，将不同工作条件下模态分析结果进行比较，分析温度场对齿轮模态的影响；在考虑温度场这一因素下采用概率设计方法的MonteCarlo模拟法对齿轮进行共振可靠性灵敏度分析.结果表明:由温度变化所引起材料力学性能的变化对各阶固有频率影响的程度不同，由热应力引起的固有频率变化小于由材料力学性能变化引起的固有频率变化；各随机变量中齿轮的模数对共振可靠性的影响最大，分析结果更符合实际工况，为齿轮可靠性设计开辟了新思路.

关键词: 温度场, 热应力, 模态, 可靠性, 灵敏度

Abstract: To study the influence of the temperature on the gear structure mode， modal analysis of gear was done based on the coupled thermalstructural analysis. By comparing the modal analysis results under different working conditions， the influence of temperature field on the gear mode was analyzed. Monte Carlo simulation of the probabilistic design method was performed on the gear resonance reliability sensitivity with considering the factor of temperature field. The results showed that the changes of the material mechanical properties caused by temperature change have different impact on each order natural frequency， whose variation caused by thermalstress is smaller than that caused by mechanical property change. Among all random variables， gear module has the greatest impact on the resonance reliability. The results agree well with the actual working conditions. The work initiates a new idea in the field of gear reliability design.

Key words: temperature field, thermalstress, mode, reliability, sensitivity

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