时间域边界元应用于基础动力响应问题  

TIME DOMAIN BOUNDARY ELEMENT METHOD APPLIED TO DYNAMIC RESPONSE OF FOUNDATION

作　　者：洪锦如[1] Shelaon Cherry 

机构地区：[1]同济大学 [2]加拿大不列颠哥伦比亚大学

出　　处：《振动与冲击》1989年第3期7-15,共9页Journal of Vibration and Shock

摘　　要：本文导出了时间域边界元法单元间影响系数积分表达式的解析结果,并将此方法用来确定弹性半空间表面上无质量刚性基础的动力响应。将计算结果与现有边界元方法得到的动力响应进行了比较,表明本方法有较高精度,并能节省计算时间。由于是在时间域内分析,本方法可以推广到考虑土一结构共同作用的非线性分析。Analytical expressions are obtained for the integrations involved in defining the influence Coefficients associated with the direct time domain boundary element method formulation. This method is then used to determine the dynamic response of a massless rigid foundation resting on the surface of an elastic half-space, and the results are compared with the response estimates derived from an existing numerical procedure involving boundary element.The method presented in this paper provides greater accuracy and involves less computational effort.

关 键 词：动力响应 时间域 边界元法 

分 类 号：O343.5[理学—固体力学]