基于函数空间迭代的大系统故障诊断方法

提出一种基于函数空间的迭代的大系统故障诊断方法，文中首次提出可达路径权值乘积最小概念，给出了求解该最小值及相应路径的函数空间迭代算法，并将之转化为一种既简单又易于编程的表格式迭代方法，进而将这种方法应用到系统故障诊断。文章详细描述了基于本方法的故障诊断步骤，文末通过一系统故障诊断实例来说明本文的简单有效性。由于本方法综合了逆向故障搜索法、故障树分析法及动态规划的优点，因而特别适用于网络结构复杂、并

THE NEW STANDARD FORMS OF ITAE OPTIMUM TRANSFER FUNCTION

This paper gives three new standard forms of ITAE optimum transfer function, their frequence characteristics and step responses, discusses the dialectical unity between the sole and non sole resolutions for the ITAE optimum control law. Finally, the application of new standard forms of ITAE optimum transfer function to realize the tiwce optimum control of second order system with deadtime is discussed. The results show that the performance of the X Y type is better than the one of the G L type.