| 动力吸振器用于抑制加肋薄板振动和声辐射的研究 |
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| 引用本文： | 尹坚平 刘鸿信. 动力吸振器用于抑制加肋薄板振动和声辐射的研究[J]. 同济大学学报(自然科学版), 1989, 17(2): 195-203 |
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| 作者姓名： | 尹坚平 刘鸿信 |
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| 作者单位： | 同济大学声学研究所，西安飞机制造公司设计所，同济大学声学研究所 |
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| 摘 要： | 本文以加肋薄板作为计算和实验的模型,从理论和实验上证明了动力吸振器对加肋薄板振动和声辐射抑制的有效性,给出了动力吸振器参数最优设计的图表。设计的悬臂梁吸振器具有较显著的抑振和降噪效果。最后对真实飞机壁板上安装动力吸振器进行了实验研究,得到了满意的降噪效果。
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| 关 键 词： | 动力吸振器 辐射 薄板 声 振动 |
The Study of Dynamic Vibration Absorbers for Reducing Vibration and Sound Radiation of a Thin Ribbed Panel |
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| Yin JianPing Liu Hongxin Ni Naichen Institute of Acoustics. The Study of Dynamic Vibration Absorbers for Reducing Vibration and Sound Radiation of a Thin Ribbed Panel[J]. Journal of Tongji University(Natural Science), 1989, 17(2): 195-203 |
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| Authors: | Yin JianPing Liu Hongxin Ni Naichen Institute of Acoustics |
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| Affiliation: | Yin JianPing Liu Hongxin Ni Naichen Institute of Acoustics |
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| Abstract: | In this paper, a ribbed panel is taken as a model of calculation and exper-iment to prove the effectiveness of absorbers for restraining the vibration and acoustic radiation of the panel. The cbarts for designing optimum absorbers are given. The cantilever absorbers designed bave more notable effects for reducing the vibration and acoustic radiation. Finally, the experimental research which is aimed at aircraft fuselage structural element installed with dynamic vibration absorbers is made and satisfactory results are obtained. |
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| Keywords: | Dynamic vibration absorber Optimal design Reduction of acoustic radiation |
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