Multi-objectives nonlinear structure optimization for actuator in trajectory correction fuze subject to high impact loadings
Multi-objectives nonlinear structure optimization for actuator in trajectory correction fuze subject to high impact loadings作者机构：Northwest Institute of Nuclear TechnologyXi’an710025China Shijiazhuang CampusArmy Engineering UniversityShijiazhuang050003China
出 版 物：《Defence Technology（防务技术）》 (Defence Technology)
年 卷 期：2021年第17卷第4期
页 面：1338-1351页
核心收录：
学科分类：082601[工学-武器系统与运用工程] 08[工学] 0826[工学-兵器科学与技术]
主 题：Actuator Trajectory correction fuze Impact loadings Optimized Latin hypercube design Kriging model Optimization algorithm
摘 要：This paper presents an actuator used for the trajectory correction fuze,which is subject to high impact loadings during launch.A simulation method is carried out to obtain the peak-peak stress value of each component,from which the ball bearings are possible failures according to the ***,three schemes against impact loadings,full-element deep groove ball bearing and integrated raceway,needle roller thrust bearing assembly,and gaskets are utilized for redesigning the actuator to effectively reduce the bearings’***,multi-objectives optimization still needs to be conducted for the gaskets to decrease the stress value further to the yield *** gasket’s structure parameters and three bearings’peak-peak stress are served as the four optimization variables and three objectives,*** Latin hypercube design is used for generating sample points,and Kriging model selected according to estimation result can establish the relationship between the variables and objectives,representing the simulation which is ***,two optimization algorithms work out the Pareto solutions,from which the best solutions are selected,and verified by the simulation to determine the gaskets optimized structure *** can be concluded that the simulation and optimization method based on these components is effective and efficient.
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