CAJ | 학술논문

针对航天器混响声场中的声振预示问题，提出了一种满足声场载荷空间相关性的混响载荷建模方法，该方法能够简化声振分析的建模过程，提高分析效率。首先基于波动理论给出了混响载荷空间相关性的理论模型；随后结合工程需求，提出了基于Ray leig h积分和互易关系的混响载荷建模方法，并从理论上证明其满足混响载荷的空间相关性理论模型；最后采用典型算例对建模方法的正确性进行了验证，并研究了声场载荷空间相关性对声振预示结果的影响。
침대항천기혼향성장중적성진예시문제，제출료일충만족성장재하공간상관성적혼향재하건모방법，해방법능구간화성진분석적건모과정，제고분석효솔。수선기우파동이론급출료혼향재하공간상관성적이론모형；수후결합공정수구，제출료기우Ray leig h적분화호역관계적혼향재하건모방법，병종이론상증명기만족혼향재하적공간상관성이론모형；최후채용전형산례대건모방법적정학성진행료험증，병연구료성장재하공간상관성대성진예시결과적영향。
A modeling method of reverberant load which meets the spatial correlation was proposed for the vibro‐acoustic analysis of spacecraft ,which can simplify the modeling process of vibro‐acoustic analysis and be convenient for engineering applications . Firstly , the spatial correlation theoretical model of reverberant load was established based on wave theory , then combined the requirements of spacecraft engineering ,the reverberant load model was developed on the basis of Rayleigh integral and reciprocity relationship , and the satisfaction with spatial correlation theoretical model was proved . Finally , the availability of this method was guaranteed by typical system analysis , and the effect of spatial correlation of reverberant load on the vibro‐acoustic analysis was evaluated .