| 一种用于车内降噪的子结构优化技术 |
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| 引用本文： | 丁渭平.一种用于车内降噪的子结构优化技术[J].汽车技术,2002(2):19-22. |
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| 作者姓名： | 丁渭平 |
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| 作者单位： | 浙江大学 |
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| 基金项目： | 国家自然科学基金资助项目(59875069)。 |
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| 摘 要： | 提出一种以车内降噪为目的车身结构动态修改的新方法,该方法将对车身壁结构的局部修改等效地视为在其上附加一子结构,并给出了车内声压变化与车身壁结构修改间的直接定量关系。以此为基础,建立了子结构的优化设计模型,通过具体算例说明了子结构位置选择的恰当与否对降噪效果至关重要,并通过试验验证了其可行性。
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| 关 键 词： | 车内噪声 结构 设计 模型 |
| 文章编号： | 1000-3703(2002)02-0019-03 |
| 修稿时间： | 2001年7月20日 |
One Substructure-Optimizing Technology for Reducing Internal Noise of Vehicles |
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| Ding Weiping.One Substructure-Optimizing Technology for Reducing Internal Noise of Vehicles[J].Automobile Technology,2002(2):19-22. |
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| Authors: | Ding Weiping |
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| Abstract: | The new body structure dynamic modification method for reducing internal noise of vehicles is presented.The new method equivalently looks a local modification of body wall structure as attaching a substructure on it. The directquantitative relation of variation of internal sound pressure against modification of the body wall structure is given. Based on it,substructure optimization model is created. It is proved by computed examples that positions of substructures are very impor-tant to the effect of noise reduction.Feasibility of the model is validated by tests. |
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| Keywords: | Internal noise of vehicle Structure Design Model |
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