In order to obtain the fatigue life of a typical aircraft panel,a method is presented to develop a high intensity acoustic noise test system for large scale panel structure.A progressive wave tube(PWT),which can be applied to large-scale panel with narrow rectangular cross-section,is designed to realize high intensity.The scheme of fixing specimen on both sides of working section of PWT is adopted,which can effectively shorten the test period and improve the test efficiency.The results show that the system proposed in this paper is suitable for the acoustic noise test of aircraft panel,it can effectively attain the ability required for specific intensity acoustic noise test.Meanwhile the cost is lower,which has certain practical value for engineering application.
关键词
噪声试验系统/大尺寸壁板结构/高声强噪声试验
Key words
high-intensity noise test system/large-scale panel structure/high sound intensity noise test
维普
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