仪器舱结构的能量有限元中频声振环境预示

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摘要采用能量有限元分析（EFEA）的方法，建立某仪器舱结构的能量有限元模型，并对其进行了声振环境的预示。然后将EFEA与统计能量分析（SEA）及实验测试结果进行了比较，在一定的频域内，能量有限元方法得到了较好的预示结果，与预期结果相符。相对于传统SEA方法，EFEA还可以得到响应的空间分布。文中对仪器舱结构的EFEA建模及分析，为工程上对复杂结构声振环境预示提供了新的思路。

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	王怀志1
	于开平1
	张宗强2
	曾耀祥3
	王旭3

关键词 ：能量有限元, 统计能量, 声振环境, 仪器仓

Abstract：The energy finite element analysis(EFEA) model of an instrument cabin structure was established, and the acoustic-vibration environment was predicted.The results by the EFEA were compared with those by the statistical energy analysis(SEA) and by the experiments.In certain frequency range, good prediction results could be obtained by the EFEA, which are in agreement with the expectations.Besides, compared with the traditional SEA method, the EFEA can also get the spatial distribution of the responses.The modeling and analysis of the instrument cabin structure by the EFEA offers a new idea for the acoustic-vibration environment prediction of complex structures in engineering.

Key words：
Energy Finite Element Statistical Energy Acoustic-Vibration Environment Instrument Cabin

收稿日期: 2017-11-10 出版日期: 2019-05-15

引用本文:

王怀志1，于开平1，张宗强2，曾耀祥3，王旭3. 仪器舱结构的能量有限元中频声振环境预示[J]. 振动与冲击, 2019, 38(10): 143-148.
WANG Huaizhi1, YU Kaiping1, ZHANG Zongqiang2, ZENG Yaoxiang3, WANG Xu3. Prediction of the acoustic-vibration environment of an instrument cabin by using the energy finite element method. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(10): 143-148.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2019/V38/I10/143

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