一种分段函数光滑强度包络线模型及应用  

A Smooth Strength Envelope Model of Piecewise Function and Its Application

作　　者：张镭于[1] 刘立健[1] 王艳红[1] 兰姣霞[1] 

机构地区：[1]军事交通学院基础部,天津300161

出　　处：《水利与建筑工程学报》2009年第3期5-7,共3页Journal of Water Resources and Architectural Engineering

摘　　要：三角级数法是人工地震动合成常用的计算方法之一,但是利用这种方法计算速度时程时,发现存在一定的零线漂移现象。在前人研究的基础上,利用光滑分段函数方法,建立了一种更完善的光滑强度包络线计算模型,更好的解决了这一问题。通过计算证明,该计算模型是正确可行的。A trigonometric series method is one of the widely used methods for calculating the artificial ground motion. But when using this method for calculating the speed of time, it is found that there exists the zero-line drifting phenomenon. Based on the prodecessor＇s researches, a kind of mere perfect model for the strength envelope function is proposed, to resolve this problem much better. Through the calculation, it is proved that the new method is reasonable and effective.

关 键 词：地震动 光滑强度包络函数 零线漂移 奇异点 

分 类 号：O212.1[理学—概率论与数理统计] P315.8[理学—数学]