| 饱水介质波动分析的谐波输入初始间断的处理方法 |
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| 引用本文： | 王祥建,崔杰.饱水介质波动分析的谐波输入初始间断的处理方法[J].地震工程与工程振动,2008,28(2):165-170. |
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| 作者姓名： | 王祥建 崔杰 |
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| 作者单位： | 1. 中国地震局,工程力学研究所,黑龙江,哈尔滨,150080
2. 广州大学,抗震中心,广东,广州,510405 |
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| 基金项目： | 中国地震局工程力学研究所基本科研业务费专项(2006B08) |
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| 摘 要： | 本文以饱水两相介质的土力学模型为研究对象,在假定两相介质为弹性介质条件下,采用了显式有限元法和透射边界进行了饱和弹性半空间动力响应问题的研究。为避免谐波输入初始间断的影响,文中提出了一个处理函数,并以弹性半空间为算例,对饱水介质和单相介质分别进行了在底边界P波垂直入射时的动力响应分析,验证了该处理函数的有效性和实用性。
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| 关 键 词： | 两相介质 土力学模型 显式有限元法 透射边界 初始输入间断 |
| 文章编号： | 1000-1301(2008)02-0165-06 |
| 修稿时间： | 2007年6月10日 |
A simulating method for avoiding the influence of initial inputting interrupt of harmonic wave with analysis of wave propagation in saturated media |
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| WANG Xiangjian,CUI Jie.A simulating method for avoiding the influence of initial inputting interrupt of harmonic wave with analysis of wave propagation in saturated media[J].Earthquake Engineering and Engineering Vibration,2008,28(2):165-170. |
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| Authors: | WANG Xiangjian CUI Jie |
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| Abstract: | The dynamic response of the saturated,porous,elastic half-space,which is based on the soil mechanics model,is studied in this paper,and the saturated soil is taken as an elastic two-phase medium.The explicit finite element method and the transmitting boundary are used.Moreover,a simulating method for avoiding the influence of initial inputting interrupt of harmonic wave is proposed in this research.And the numerical simulation research of saturated media and one-phase media of elastic half-space are performed when the normal incident waves are harmonic P waves from the bottom boundary.The results show that the simulation method is effective and practical. |
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| Keywords: | two-phase medium soil mechanics model explicit finite element method transmitting boundary initial inputting interrupt |
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