Finite Element Modeling and Modal Analysis of Coilable Mast

摘要：

　　This paper investigates the modal characteristics of a coilable mast for space mission applications.Finite element models are established for characterizing the coilable mast.The simplification of joints between longerons and batten frames and the pre-tension in cables are carefully considered.A parametric modal analysis is performed with considering the following factors, the joint model in the truss, the pre-tension in cables, elements selected for longerons and battens, the mass attached to the top of the mast.Research results show that the natural frequencies of the coilable mast are sensitive to the selected elements and the attached mass.The pre-tension level in cables and the precision degree of the joint model have little effect on natural frequencies.The regularity expressed in the parametric modal analysis is useful for designers and engineers.

关键词： Coilable Mast Finite Element Model Prestress Modal Analysis

作者: Jie Wang Dongxu Li Jianping Jiang

作者单位: College of Aerospace and Material Engineering,National University of Defense Technology,Changsha,410073,P.R.China

会议类型: 国际会议

会议名称: the 2012 International Conference on Vibration, Structural Engineering and Measurement (2012年振动、结构工程与测量国际会议(ICVSEM2012))

会议地点: 上海

会议语种:英文

页码: 299-302

在线出版日期: 2012-10-19（万方平台首次上网日期，不代表论文的发表时间）