铁道标准设计Issue(11)：77-80,4.
高速铁路声屏障气动力的数值模拟研究与试验验证
Numerical Simulation and Experimental Verification of Dynamic Pressures on Noise Barriers of High Speed Railways
朱正清 1成志强2
作者信息
- 1. 铁道第三勘察设计院集团有限公司,天津300142
- 2. 西南交通大学力学与工程学院,成都610031
- 折叠
摘要
Abstract
Dynamic pressure fields on noise barrier surfaces were simulated by three dimensional uncompressible unsteady model when EMU trains passing by. The simulation methods were well verified since simulation results were in accordance with real train test results. Results showed that dynamic pressures were characterized by its "head wave" and "tail wave" , maximum values of positive pressure and negative pressure of "head wave" were obviously larger than those of "tail wave" , both positive and negative pressure fields of pressure wave had the shape of a " target". Peak values of pressure waves increased proportionally with the square of train velocities and sharply with the height of barriers in non-linear relation, decreased proportionally with the distance between near rail center and barriers.关键词
高速铁路/声屏障/气动力/数值模拟/试验验证Key words
High speed railway/ Noise barrier/ Dynamic pressure/ Numerical simulation/ Experimental verification分类
交通工程引用本文复制引用
朱正清,成志强..高速铁路声屏障气动力的数值模拟研究与试验验证[J].铁道标准设计,2011,(11):77-80,4.
