摘要
本文将滚筒结构简化为串联系统,利用有限元法计算应力,然后进行可靠度计算以及可靠度对随机变量变差系数的敏感性分析.本文给出的方法,对矿山机械的可靠性分析具有普遍意义.
The drum structure is idealized as a series system. The drum stresses are calculated using finite element method. Then the reliability of drum structures is found. A sensitivity analysis is also conducted to find the variation of reliability with a change in the coefficients of variation of different random variables. The reliability analysis procedure given in the paper can be used in other mining machinery.
关键词
可靠性
有限元
滚筒
采煤机
reliability
finite element method
coefficient of variation
drum
