Novel sensitivity analysis method and dynamics optimization for multiple launch rocket systems

作     者：Tu Tianxiong Wang Guoping Rui Xiaoting Miao Yunfei 屠天雄;王国平;芮筱亭;缪云飞

作者机构：Institute of Launch DynamicsNanjing University of Science and TechnologyNanjing 210094China 

出 版 物：《Journal of Southeast University(English Edition)》 (东南大学学报（英文版）)

年 卷 期：2022年第38卷第1期

页      面：15-19页

核心收录：

学科分类：082601[工学-武器系统与运用工程] 08[工学] 082603[工学-火炮、自动武器与弹药工程] 0826[工学-兵器科学与技术] 

基　　金：The Natural Science Foundation of China(No.11972193) the Science Challenge Project(No.TZ2016006-0104) 

主　　题：Riccati transfer matrix method for multibody systems multiple launch rocket system launch dynamics sensitivity analysis optimization design 

摘      要：This study establishes the launch dynamics method,sensitivity analysis method,and multiobjective dynamic optimization method for the dynamic simulation analysis of the multiple launch rocket system(MLRS)based on the Riccati transfer matrix method for multibody systems(RMSTMM),direct differentiation method(DDM),and genetic algorithm(GA),*** show that simulation results of the dynamic response agree well with test *** sensitivity analysis method is highly programming,the matrix order is low,and the calculation time is much shorter than that of the Lagrange *** the increase of system complexity,the advantage of a high computing speed becomes more *** parameters that have the greatest influence on the dynamic response include the connection stiffness between the pitching body and the rotating body,the connection stiffness between the rotating body and the vehicle body,and the connection stiffnesses among 14^(#),16^(#),and 17^(#)wheels and the ground,which are the optimization design *** optimization,angular velocity variances of the pitching body in the revolving and pitching directions are reduced by 97.84%and 95.22%,respectively.