摘要
采用突变理论的方法,本文讨论了系统不稳定点的特征及对系统的影响,推导出了系统在平衡状态下临界点的方程。以煤矿底板系统突水为例,导出了矿坑底板系统失稳时受力的临界值及失稳时底板变形量和能量释放的表达式,为矿山底板突水预报提供了新的理论方法。
In this paper, the method of catastrophe theory is adopted to characterize system unstable points, their influence on the system has been discussed, and the equation of critical points of the system under a balance state has been developed. Given an example of water inrush from coal mine floor system, the critical value of force acting on the floor, the deformation quantity and the released energy expression are derived when the floor system loses its stability. Therefore, a new theoretical method is offered for predicting water inrush from the floor of coal mine.
出处
《工程数学学报》
CSCD
北大核心
2005年第8期15-19,共5页
Chinese Journal of Engineering Mathematics
基金
河北省自然科学基金(D2004000480)
河北省博士基金(B2002218).
关键词
突变
不稳定点
控制变量
势函数
catastrophe
unstable point
control variable
potential function
作者简介
彭建平(1959年10月生),女,学士,副教授,研究方向:高等数学、工程数学、数学建模、数学实验的教学和科研工作。