动力机器基础设计的数值方法研究  

NUMERICAL SIMULATION METHOD FOR FOUNDATION DESIGN OF DYNAMIC MACHINE

作　　者：蒋东旗[1] 谢定义[2] 

机构地区：[1]浙江大学 [2]西安理工大学

出　　处：《土木工程学报》2002年第1期74-78,共5页China Civil Engineering Journal

摘　　要：在“数值方法”总的思路指导下 ,结合动力机器基础振动的特点 ,把土与基础视作一弹性共同作用体系 ,利用大型工程分析软件ADINA ,分别对简单地基条件下基础不同振型及复杂地基条件下的耦合振动进行了系统的数值试验 ,并将所得的结果与相应条件下由《规范》方法与Lysmer比拟法计算的结果进行了对比分析 ,验证了数值计算方法对于动力机器基础设计的系统性。The mass?dashpot?spring model and elastic?half?space model are current used in the design. However, there are some defects. An attempt is made to find a new solution. The numerical simulation method is proposed in the paper. Now, the soil and machine is considered as elastic integrated system and solved with the software ADINA. A series of numerical simulation for the foundation under different vibration types are carried out. It is divided into simple and complicated soil conditions. The results are compared with that of the current used models. It shows that the numerical simulation method is feasible.

关 键 词：动力机器基础 弹性半空间 数值方法 

分 类 号：TU476.1[建筑科学—结构工程]