多次透射边界模拟成层介质中瞬态波动的精度分析  

AN ACCURACY ANALYSIS OF THE MULTI - TRANSMITTING BOUNDARY IN THE SIMULATION OF TRANSIENT WAVES IN LAYERED MEDIA

作　　者：关慧敏[1] 廖振鹏[1] 

机构地区：[1]国家地震局工程力学研究所,中国哈尔滨150080

出　　处：《地震工程与工程振动》1996年第1期60-69,共10页Earthquake Engineering and Engineering Dynamics

摘　　要：本文将对多次透射边界在瞬态波动模拟中的精度分析推广到介质中存在多个物理波速的情形,阐明了它模拟成层介质中瞬态波动的适用性,指出多次透射边界的误差随着透射阶数的增加而迅速减小,二阶透射边界已具有足够高的模拟精度。The accuracy analysis of the Multi-Transmitting Boundary (MTB) is extended in the paper to cases in which more than one physical velocities exist in the medium.And then its adaptability to the simulation of transient wave motion in layered media is illuminated. It is shown that the error of the MTB decreases rapidly as its order increases and the 2nd-order MTB is accurate enough for the wave simulation.

关 键 词：多次透射边界 成层介质 瞬态波动模拟 地震波 

分 类 号：P315.9[天文地球—地震学]