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| 势流体和Housner模型动力研究比较 | |
| 引用本文： | 丁晓唐,刘广,王姗姗,蒋勇.势流体和Housner模型动力研究比较[J].水力发电学报,2011,30(6). |
| 作者姓名： | 丁晓唐 刘广 王姗姗 蒋勇 |
| 作者单位： | 1. 河海大学土木与交通学院,南京,210098 2. 中国市政工程中南设计研究总院,武汉,430010 3. 江河水利水电咨询中心,北京,100120 |
| 摘 要： | 势流体假设流体无黏、无旋、无热转换、不可压缩且流体域的边界运动很小,计算中仅包括未知量—速度势;Housner模型采用等效弹簧质量系统来模拟流体对结构的压力作用;两种模型在流-固耦合中都偏重流体对结构的作用研究。三维渡槽体系流-固耦合模态分析表明,两种模型的振动都是从流体开始的;结构前五阶动力特性是一致的,Housner模型的振动频率偏低;动力时程分析可知,Housner模型结构动力响应偏大,结果较安全。 |
| 关 键 词： | 振动与波 动力分析 流固耦合 势流体 Housner模型 渡槽 |
Comparative study on dynamic behaviors of potential model and Housner model |
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| DING Xiaotang,LIU Guang,WANG Shanshan,JIANG Yong.Comparative study on dynamic behaviors of potential model and Housner model[J].Journal of Hydroelectric Engineering,2011,30(6). | |
| Authors: | DING Xiaotang LIU Guang WANG Shanshan JIANG Yong |
| Affiliation: | DING Xiaotang1,LIU Guang2,WANG Shanshan3,JIANG Yong1(1.College of civil and transportation engineering,Hohai university,Nanjing 210098,2.Central and southern China municipal engineering design & research institute,Wuhan 430010,3.Resources and Hydropower Consulting Center,Beijing 100120) |
| Abstract: | The potential fluid model assumes that fluid is incompressible and has no viscosity,no whirling and no heat transfer,and that fluid velocity near a boundary is small.For this model,the unknown variable to be calculated is velocity potential only.Housner model uses equivalent spring mass system to simulate the effects of fluid pressure on the structure.In analysis of fluid-solid coupling,actually both models focus more on the effect of fluid acting on the structure.A 3-D dynamic analysis of fluid-solid coupl... |
| Keywords: | vibration and wave dynamic analysis fluid-solid coupling potential fluid Housner model aqueduct |
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