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轮胎胎体/空腔低频耦合模型

发表时间:2018-07-31  浏览量:1243  下载量:225
全部作者: 于春歌,张永斌
作者单位: 合肥工业大学噪声振动工程研究所
摘 要: 环模型是分析轮胎低频(400 Hz以下)振动特性的一种常用模型,在分析轮胎振动机理和预测轮胎振动响应等方面具有重要作用。但由于现有的环模型未考虑轮胎空腔的影响,因此在空腔共振频率附近的振动特性与实际情况存在偏差。针对该问题,本文在环模型的基础上考虑胎体和空腔内气体的流/固耦合现象,建立了轮胎胎体/空腔低频耦合模型。采用该耦合模型不但可以预测轮胎的结构固有频率和空腔共振频率,而且在计算外部激励作用下的振动响应时,能够反映出空腔共振对胎面振动的影响。
关 键 词: 机械设计;轮胎;结构共振;空腔共振;耦合模型
Title: Low frequency model coupling the tire structure and acoustic cavity
Author: YU Chunge, ZHANG Yongbin
Organization: Institute of Sound and Vibration Research, Hefei University of Technology
Abstract: The ring model is the conventional model for analyzing the vibration property of a tire at low frequencies (below 400 Hz), and plays an important role for studying the tire vibration mechanism and predicting the tire vibration response. However, since the existent ring model does not contain the influence of tire acoustic cavity, the vibration characteristics predicted by the existent ring model nearby the cavity resonance frequency have deviated from the real ones. To resolve the problem, a low frequency model coupling the tire structure and acoustic cavity is proposed, in which the fluid/structure interaction between the tire structure and the air in the cavity is included. The coupling model is used to predict the natural frequencies of tire structure and the resonance frequency of tire cavity, and the calculated vibration response of a tire excited by an external force can reveal the influence of acoustic cavity resonance on tread vibration.
Key words: mechanical design; tire; structure resonance; cavity resonance; coupling model
发表期数: 2018年7月第14期
引用格式: 于春歌,张永斌. 轮胎胎体/空腔低频耦合模型[J]. 中国科技论文在线精品论文,2018,11(14):1438-1444.
 
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