陕西师范大学学报：自然科学版2012，Vol.40Issue(1)：33-36,4.
多种激励条件下复杂圆柱结构的中频声辐射预测及验证
The acoustic radiation prediction and validation of complex cylindrical structure in muliti-excitation medium-frequency region
摘要
Abstract
The finite element-statistical energy analysis（FE-SEA） model of the complex cylindrical structure iss built which is often used in aircraft or submarine.The characteristics of acoustic radiation is studied based on hybrid FE-SEA method under multi-forced.The sound pressure level in the sound cavity of cylindrical structure is measured in the anechoic room under the multi-excitation,and the tested results are compared with the simulated ones.It shows that the simulated results are in good agreement with the experimental ones in the interest medium-frequencies.It can provide an accurate calculation of acoustic radiation on each frequency region and the inflection.The higher the frequencies are,the more accurate the prediction results are.There are some differences in the prediction with the change of excitation type and frequency,of which the error of the sound-force hybrid excitation is the smallest.关键词
复杂圆柱结构/混合有限元-统计能量分析法/声辐射Key words
complex cylindrical structure/hybrid FE-SEA method/acoustic radiation分类
数理科学引用本文复制引用
高洁,陈克安,李冰..多种激励条件下复杂圆柱结构的中频声辐射预测及验证[J].陕西师范大学学报：自然科学版,2012,40(1):33-36,4.基金项目
航空科学基金资助项目 （）
