减载缓释机构特性对火箭结构动力响应的影响  

Effects of soft release mechanism characteristic on structural dynamic response of launch vehicle

作　　者：安军[1] 侯赤[1] 王文智[1] 赵美英[1] 

机构地区：[1]西北工业大学航空学院,西安710072

出　　处：《固体火箭技术》2014年第1期18-22,共5页Journal of Solid Rocket Technology

摘　　要：研究了减载缓释机构特性对火箭牵制释放过程结构动力响应的影响,对不同构型减载缓释机构的缓释特性进行了对比分析。在研究运载火箭牵制缓释放有限元分析模型和分析方法的基础上,利用MSC.NASTRAN计算了运载火箭牵制缓释放过程中的结构动力响应,并对减载缓释机构的效能进行分析与评估。分析结果表明,通过改进缓释特性,可以有效提高减载缓释机构的缓释效能,从而减小运载火箭全箭结构的动力响应。The soft release mechanism characteristic and its impact on the structural dynamic response of launch vehicles were analyzed.Firstly ,the finite element calculation model was derived.Then, its structural transient response was analyzed according to the characteristics of different configuration.The soft release efficiency of SRM was evaluated finally.The results show that soft re lease efficiency of SRM can be improved and the structural dynamic response of launch vehicles is reduced by amending the SRM characteristic.

关 键 词：运载火箭 牵制缓释放 减载缓释机构 结构动力响应 

分 类 号：V475.1[航空宇航科学与技术—飞行器设计]