灰色关联分析法在机械可靠性工程中的应用

对于小子样系统的可靠性评定，关键在于建立系统寿命分布类型，这也是目前可靠性工程所要解决的难题，应用灰色系统理论关联度分析法，利用试验数据曲线及数值计算的分布曲线之间的关联度，可以定量地判别何种分布类型能更精确地拟合试验数据，该方法计算简便，不但适用于小子样系统，而且能够避免概率纸作图法所带来的人为因素的影响，因此，灰色关联度分析法的应用，为判定系统寿命分布类型找到了新途径。

Application of grey relevant analsis to mechanical reliability Engineering

For the reliability assessment of small sample size system, the key is to establish the type of life distribution for the system, a difficult problem for reliability engineering.The relevant analysis method of grey theory is used to indicate on rations which type of distribution is more accurate to imitate test data by taking advantage of the relevant dgeree between test data curve and distribution curve of values calculation. By this method the calculation is very simple, and it is not only suitable for small sample size system, but also can avoid the effect of man - made factors in probability paper method. Therefore a new way is founded for determining the type of life distribution for the system by using grey relevant analysis method.