机械传动系统可靠性分析的权函数法

Weight function method for reliability analysis of mechanical transmission system

目前计算机械传动系统可靠度的方法，是以系统内各零部件的失效是相互独立的事件为前提的。然而在一般情况下，机械传动系统中各零件间是具有相关关系的，基于此，结合实际情况，考虑了进行机械传动系统可靠性分析对各组成零件失效的相关性，提出了计算机械传动系统可靠度的权函数法，并结合实例进行了计算。结果表明，这种方法对于处理零件间相关及多种失效模式相关的机械传动系统具有较强的适应性。

The commonly-used method for calculating the reliability of the mechanical trmsthession system is based on a prerequisite that the fallure of the compoent parts of the system is independent event. But the component parts of the mechanical transmission system are usually relative to each other, thereby the weight function method for calculating the system reliability is presented in consideraion of the interrelationship of the failure of the component parts of the system, and an examle of calculation is given. The result of the calculation shows that the above-mentioned method is applicable for dealing with the mechanical transmission system with interrelated component parts and various failure patterns.