具有不完全概率信息的圆柱齿轮传动的可靠性灵敏度设计  

Reliability Sensitivity Design of Cylindrical Gear Pairs under the Incomplete Probability Information

作　　者：杨周[1] 张义民[1] 

机构地区：[1]东北大学机械工程与自动化学院,辽宁沈阳110004

出　　处：《机械传动》2009年第2期29-34,共6页Journal of Mechanical Transmission

基　　金：国家高技术研究发展计划(2007AA04Z442);国家自然科学基金重点项目(50535010);辽宁省自然科学基金(20052034);高校创新团队项目资助

摘　　要：应用随机摄动技术和四阶矩技术,将可靠性设计理论与灵敏度分析方法相结合,建立了圆柱齿轮传动的可靠性灵敏度设计模型,提出了基于四阶矩方法的可靠性灵敏度设计的计算方法,讨论了具有不完全概率信息的圆柱齿轮传动的可靠性灵敏度设计问题,探讨了圆柱齿轮传动的可靠性随设计参数改变的数学评价方法,给出了可靠性灵敏度的变化规律,研究了设计参数的改变对圆柱齿轮传动的可靠性的影响,并且获得了理想的数值设计结果。为圆柱齿轮传动的可靠性设计提供了理论依据。Based on the probability perturbation and the fourth moment technique,the reliability design theory,the sensitivity analysis method,the mathematical model for reliability sensitivity of the cylindrical gear pairs is established,the reliability sensitivity of the cylindrical gear pairs upon information of incomplete probability is extensively discussed,and a numerical method for reliability sensitivity design is presented,and the sensitivity analysis is extended to discuss the mathematical evaluation methods of the change of the cylindrical gear pairs reliability with the change of design parameters.The variation regularities of reliability sensitivity are obtained and the effects of design parameters on reliability of the cylindrical gear pairs are studied.The perfect numerical results are obtained.The method presented in this paper provided the theoretic basis for the reliability design of the cylindrical gear pairs.

关 键 词：圆柱齿轮传动 可靠性设计 可靠性灵敏度设计 不完全概率信息 四阶矩技术 

分 类 号：TH132.41[机械工程—机械制造及自动化]