机构地区: 上海交通大学机械与动力工程学院振动冲击噪声国家重点实验室
出 处: 《振动与冲击》 2005年第5期35-38,共4页
摘 要: 在不改变卫星和运载火箭结构前提下,针对某型号的配重卫星模型的隔振要求和约束条件,研制出一种新型的整星隔振器,安装在适配器和星箭界面之间,阐述隔振器的设计路线,建立合理的有限元模型,进行隔振器的结构参数灵敏度分析和频率响应计算,最后对整星隔振系统的进行动态性能测试。有限元计算结果和试验数据表明,所研制的整星隔振器能够有效地隔离卫星在宽频带上横向和纵向振动,降低发射时运载火箭传递给卫星的环境载荷。 The research and the development of a new type of whole-spacecraft isolation system are provided by insertion of isolators between the payload attached fitting and the launch vehicle without any change of the existing satellite hardware. The isolation design methodology and some dynamic experiment results are presented. The creation of the finite element model for the whole-spacecraft isolation system is discussed, and the isolator parameters sensitivity analysis and frequency response calculation are also presented. From both FEA analyses and experimental data, it shows that the whole-spacecraft isolation system greatly reduces spacecraft axial/lateral response due to the broadband structure-born launch environment.
领 域: [航空宇航科学与技术] [航空宇航科学技术]