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简要概述声振预示技术的必要性及国内外发展和现状,以某仪器舱为例,利用有限元-边界元和有限元-统计能量分析对仪器舱在宽频段内声激励下的声振响应进行预示,经过与试验结果的对比,验证了上述方法的可行性。
A brief overview of the necessity of acoustic vibration prediction technology and its development and present situation at home and abroad is given. Taking an instrument cabin as an example, the acoustic vibration response of the instrument cabin under the acoustic excitation in a wide frequency band is analyzed by means of finite element - boundary element and finite element - statistical energy analysis The results show that the above method is feasible.