运载火箭多体系统动力学发展及应用

Development and Application of Multibody System Dynamics in Launch Vehicle

从工程实际角度,对运载火箭中的相关多体系统动力学问题进行分析与思考,提出运载火箭研制过程中多体系统动力学学科发展的重要性,并指出多体系统动力学在运载火箭研制方面后续需发展的若干方向,诸如贮箱晃动、分离装置、关节类机构等。建议结合运载火箭大过载、多相耦合的特点,开展针对模型高阶、强非线性相关动力学研究与工程软件研发。

From the view of engineering practice,this paper concerns the multibody system dynamics in launch vehicle,emphasizes its importance and points out some development directions in this field.,providing some reference to the engineering oflaunch vehicle,such as tank shaking,separation devices and joint mechanism.It is proposed to combince the characteristics of thelaunch vehicle’s overload and multi-phase coupling to carry out high-order,strong nonlinear dynamics research and engineeringsoftware development.