一、引言航天工程的前进要借鉴以前的经验,做为新型号设计基础的动力学环境条件更依赖于对以往型号试验数据的积累。为此,美国等宇航大国正在筹建动力学数据库,用以积累型号的飞行或地面实验数据。资料[1]、[3]介绍了马歇尔空间飞行中心建立的声振数据库。经过近十年的工作,该库中装有土星Ⅴ和大力神Ⅲ的数据,在预示新型号的随机振动试验标准中起了重要作用。资料[4]介绍了NASA格达德空间飞行中心和洛克希德导弹和空间部为航天飞机有效载荷 First, the introduction Aerospace Engineering advances To draw on previous experience, as the basis for the design of new models of dynamic environmental conditions more dependent on the accumulation of the past model test data. To this end, the United States and other aerospace powers are building kinetic databases to accumulate models of flight or ground experimental data. Data [1], [3] describe the acoustic vibration database established by the Marshall Space Flight Center. After nearly a decade of work, the library contains data on Saturn V and Hercules III, which play an important role in predicting the new model’s random vibration test standards. Information [4] describes the NASA Griddad Space Flight Center and the Lockheed Missile and Space Division for the space shuttle payload