| 模态振动对噪声贡献预测及控制 |
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| 引用本文： | 赵阳东,刘更,吴立言,马尚君.模态振动对噪声贡献预测及控制[J].噪声与振动控制,2010,30(1):29-32. |
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| 作者姓名： | 赵阳东 刘更 吴立言 马尚君 |
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| 作者单位： | （西北工业大学机电学院，西安710072） |
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| 摘 要： | 建立某船用增速箱的结构有限元模型和声固耦合边界元模型。对结构有限元模型进行结构模态分析;运用边界元法对增速箱声固耦合模型进行求解。通过计算仿真分析该模型噪声在特定频域中的分布情况。基于结构模态贡献度方法对增速箱的主要噪声源进行识别并进行有效控制。可对产品的设计开发提供参考。
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| 关 键 词： | 声学 增速箱 振动 噪声控制 边界元 贡献度 |
| 收稿时间： | 2009-2-24 |
Prediction and Control of Contribution of Modal Vibration to Noise |
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| ZHAO Yang-dong,LIU Geng,WU Li-yan,Ma Shang-jun.Prediction and Control of Contribution of Modal Vibration to Noise[J].Noise and Vibration Control,2010,30(1):29-32. |
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| Authors: | ZHAO Yang-dong LIU Geng WU Li-yan Ma Shang-jun |
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| Affiliation: | (School of Mechatronic Engineering, Northwestern Polytechnical University, Xi'an710072, China) |
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| Abstract: | The structural finite element model and sound-structure coupling boundary element model of a transmission box are established in this paper.The modal analysis of the structural finite element model is done.The sound-structure coupling boundary element model is solved by boundary element method(BEM).The distribution of noise in a particular frequency domain is analyzed.Based on modal acoustic contribution analysis(MACA),the identification and effective control of the main noise source of the transmission box... |
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| Keywords: | acoustics transmission box vibration noise control BEM contribution |
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