航空学报 > 1987, Vol. 8 Issue (8): 355-361

飞机噪声环境对结构影响的研究

符史坚   

  1. 南昌飞机制造公司
  • 收稿日期:1986-06-30 修回日期:1900-01-01 出版日期:1987-08-25 发布日期:1987-08-25

A STUDY ON EFFECTS OF AIRCRAFT NOISE ENVIRONMENT ON ITS STRUCTURE

Fu Shijian   

  1. Nanchang Aircraft Manufacturing Company
  • Received:1986-06-30 Revised:1900-01-01 Online:1987-08-25 Published:1987-08-25

摘要: 本文介绍测量飞机噪声环境,获得的结构噪声载荷分布与频谱的结果,并分析了影响其量值的因素与结构声振响应特性;归纳了结构噪声载荷谱及其编制方法;简述了进行结构声疲劳试验的方法与参数选择原则和实例;列举了分析与排除声疲劳故障的方法和效益

Abstract: This paper reports some measurements of the noise environment at various service states of aircfafts, the obtained acoustic loading distribution and frequenocy spectra of the structure a preliminary analysis of the factors effecting the magnitude of parameters concerned and acoustic vibration response characterstics of structure, a brief summary of acoustic loading spectra and detailed description of the method for drawing them up based on the combination of practical measurements with statistical investigation, a brief introduction to the method for testing acoustic fatigue and principles for selecting parameters through an example of acoustic fatigue test on a full-scale fuselage inlet, and finally, a recommendation for analysis and remedy of acoustic fatigue troubles, It also provides a data basis and a practical example for investigating the mechanism of acoustic fatigue, res-ponse characteristics of structure to acoustic loading and the control method for preventing acoutic fatigue failure of structure :