民机飞行载荷谱编制方法  

New approach for generating flight load spectrum of civil aircraft

作　　者：刘晓明[1] 万少杰[2] 熊峻江[1] 李强[2] 

机构地区：[1]北京航空航天大学交通科学与工程学院,北京100191 [2]上海飞机设计研究院结构强度部,上海200232

出　　处：《北京航空航天大学学报》2013年第5期621-625,共5页Journal of Beijing University of Aeronautics and Astronautics

基　　金：国家自然科学基金资助项目(51075019);航空科学基金资助项目(20095251024)

摘　　要：探索了由同类机型的飞行实测载荷统计数据,推断新设计机型的飞行谱,进而编制其载荷谱的新途径.采用国外同类飞机的飞行实测载荷统计数据,依据类比法,分析和推断出某民机的飞行谱以及各飞行状态连续应力谱;在此基础上,根据民用运输机的TWIST编谱方法,编制了各飞行状态的突风和机动载荷谱,最终,随机生成了其飞行谱对应的5×5地-空-地载荷谱,从而验证了探索途径的可行性与有效性.采用该方法可以加快民机研制周期.A novel approach was outlined to generate flight load spectrum for a new civil airplane from the statistical data of actural flight load on similar type of ones. The flight spectrum and continuous stress se- quences of new civil airplane were derived from the statistical data of actural flight load of B737-400 plane by means of the analogism and the gust and maneuver spectra were then generated on the basis of the TWIST method. Finally, 5 x5 ground-air-ground spectrum was obtained from the random sequencing. The example shows the practical application of new approach.

关 键 词：民用运输机 飞行谱 载荷谱 TWIST编谱 突风载荷 机动载荷 

分 类 号：V214.11[航空宇航科学与技术—航空宇航推进理论与工程]