| 铝蜂窝夹层板模态密度参数实验辨识 |
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| 引用本文： | 赵家宣,孔宪仁,王舒楠,罗文波.铝蜂窝夹层板模态密度参数实验辨识[J].哈尔滨工业大学学报,2007,39(5):807-810. |
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| 作者姓名： | 赵家宣 孔宪仁 王舒楠 罗文波 |
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| 作者单位： | 1. 哈尔滨工业大学卫星技术研究所,哈尔滨,150001
2. 航天科技集团上海卫星工程研究所,上海,200240 |
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| 摘 要： | 模态密度是应用统计能量分析方法研究振动噪声问题的基本参数,对于梁、板等简单结构,模态密度可以通过理论解析获得,但对于复杂结构或者具有复合材料特性的结构的模态密度很难通过理论解析法和数值法获得,或者获得的模态密度值不准确.因此,需要通过实验辨识模态密度.本文采用激励点导纳法对铝蜂窝夹层板进行悬挂振动实验研究.通过对比实验结果与文献资料的经验值发现有良好的吻合性,验证了该方法在新型复合材料领域的适用性.
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| 关 键 词： | 统计能量分析 铝蜂窝夹层板 模态密度 导纳法 |
| 文章编号： | 0367-6234（2007）05-0807-04 |
| 修稿时间： | 2007-03-12 |
Experimental identification of modal density parameters of aluminum honeycomb sandwich panel |
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| ZHAO Jia-xuan,KONG Xian-ren,WANG Shu-nan,LUO Wen-bo.Experimental identification of modal density parameters of aluminum honeycomb sandwich panel[J].Journal of Harbin Institute of Technology,2007,39(5):807-810. |
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| Authors: | ZHAO Jia-xuan KONG Xian-ren WANG Shu-nan LUO Wen-bo |
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| Affiliation: | 1.Research Center of Satellite Technology;Harbin Institute of Technology;Harbin 150001;China;2.Shanghai Research Center of Satellite Engineering;China Aerospace Science and Technology Corporation;Shanghai 200240;China |
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| Abstract: | Modal density is basic requirement for the analysis of vibro-acoustic problem by means of the statistical energy analysis.For simple structures,modal densities are obtained by theoretical solutions,but the modal densities of complex structures or structures with compound material characteristics can be hardly received from theoretical solutions or the solutions are inaccuracy.Therefore,experimental method is needed to identify modal densities.This paper describes on driving point admittance method for study... |
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| Keywords: | statistical energy analysis aluminum honeycomb sandwich panel modal density admittance method |
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