时代电气技术中心王玉斌能馈变流器气动噪声数值计算研究.pdf

能馈变流器气动噪声数值计算研究 王玉斌1 （株洲中车时代电气股份有限公司，湖南 株洲412001） （TelEmail: wangyb5@ ） 摘 要：随着我国城市化进程的加速发展，城市轨道交通由于各方面的优势得到了快速的发展，其中 作为新型轨交节能产品——能馈变流器也得到了越来越多的应用，而评价一款能馈变流器产品优劣的一个 重要指标就是噪声。由于市面上能馈变流器基本采用风冷散热形式，因而气动噪声则是能馈变流器主要噪 声源之一，降低和隔离气动噪声对提高产品性能有着十分重要的意义。风机的高速旋转是气动噪声产生的 主要部位，因此对风机及整个风道流场进行研究有重要意义。本文主要利用 STAR-CCM+平台气动噪声混合 计算方法研究能馈变流器气动噪声分布，并探讨气动传播及对外界环境的影响。 关键词：能量回馈变流器，气动噪声，流动控制，数值模拟 中图分类号： TM46 文献标识码：A Experimental and Numerical Study on Aerodynamic Noise of Energy Feedback Inverter WANG Yubin (Zhuzhou CSR Times Electric Co.,Ltd., Zhuzhou Hunan 412001,China ) Abstract ： With the accelerating of urbanization process in China, urban rail transportation has been gotten the rapid development due to the advantages of various aspects, and as a new Energy-saving products, Energy feedback inverter is also gained for more and more applications. However evaluating the strengths and weaknesses of the Energy feedback inverter ，the noise is an important index. since the energy feedback inverter mostly adopt air-cooling form in the market now, so aerodynamic noise is the main noise sources of the energy feedback inverter. reducing and isolating Aerodynamic noise has a very important significance for improve product performance. High-speed rotating fan is a major part of the aerodynamic noise generated, so researching the fans and the whole duct flow field has a very important significance. In this paper, mainly on the 1 王玉斌，株洲中车时代电气股份有限公司技术中心，TELE-mail：wangyb5@。 basis of the bionic research by STAR-CCM + platform to study the aerodynamic noise of energy feedback inverter and aerodynamic noise distribution, and explore the aerodynamic effect and spread to the external environment.