|Table of Contents|

Optimization design of acoustic radiation for S-form web plate wheel (PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2013年05期
Page:
54-60
Research Field:
载运工具运用工程
Publishing date:

Info

Title:
Optimization design of acoustic radiation for S-form web plate wheel
Author(s):
LIU Lin-ya1;  ZHANG Bin2;  SHAO Wen-jie1;  LU Rui3
1. Engingeering Research Center of Railway Environment Vibration and Noise of Ministry of Education, East China Jiaotong University, Nanchang 330013, Jiangxi, China; 2. GERB(Qingdao)Structural Design Co., Ltd., Qingdao 266108, Shandong, China; 3. Guangzhou Metro Corporation, Guangzhou 510310, Guangdong, China
Keywords:
vehicle engineering;  optimization design of wheel;  wheel/rail dynamics;  genetic algorithm;  finite element method;  boundary element method;  acoustic radiation
PACS:
U270.331
DOI:
-
Abstract:
In order to reduce the vibration noise produced by the wheels of running train, wheel structure dynamics optimization principle was applied to wheel structure section optimization design. By means of finite element numerical simulation method and boundary element acoustic simulation method, railway train low-noise wheel acoustic radiation optimizationmodel, which took wheel structure acoustic radiation power as objective function, was built. Using structure vibration acoustic radiation optimization theory and multi-parameter highly efficient optimization GA(genetic algorithm)method, the solution of model was programed successfully. Compared to standard wheel, optimized wheel plate vibration reduction is more obvious, for which the maximum vibration acceleration amplitude reduces from 209.2 m·s-2 to 194.6 m·s-2. According to wheel acoustic radiation power, optimized wheel acoustic radiation power decreases within most frequency ranges. The most obvious reductions are 2.31 dB and 2.42 dB at 1 200 Hz and 3 200 Hz, respectively. Analysis result indicates that it is available to optimize wheel by GA, and it provides a way for the vibration and noise reduction of vehicle. 1 tab, 13 figs, 16 refs.

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Last Update: 2013-10-30