Research On Multi-disciplinary Optimization Design Methods For Large-caliber Artillery And Ammunition

Aiming at the problem that the existing insufficient comprehensive launching performance and the poor traditional optimization effect of large-caliber guns,this paper analyzes the internal coupling relationship of the design variables involved in the full-ballistic launch process of the artillery,and establishes a multi-disciplinary optimization model of the full-ballistic artillery.The discipline decomposition of a certain type of artillery artillery and ammunition integrated design problem was completed,and the design variables and optimization goals of each sub-discipline were determined.Based on the finite element calculation results of each sub-discipline,the sub-discipline optimization mathematical model and the agent-based multi-disciplinary optimization model based on the agent model are established.The optimization effect is good,and has certain guiding significances for the subsequent large-caliber artillery and ammunition integrated design problem.The basic concepts of the multidisciplinary optimization solving strategy are expounded in detail,and the practical solving ability of the non-hierarchical improved two-layer solving strategy and the improved collaborative optimization solving strategy are deeply analyzed.The advantages and disadvantages of the two strategies in solving multidisciplinary optimization problems are compared.The multidisciplinary optimization solving solution of multi-ballistic optimization and the artillery artillery and ammunition integrated design problem are determined.The internal coupling relationship of internal trajectory,external trajectory and end effect is analyzed.Based on the non-hierarchical improved second-level solution strategy,a multi-discipline optimization model of large-caliber artillery is established to effectively improve its overall launch performance.The multi-disciplinary optimization theory is used to decompose the existing large-caliber artillery and ammunition integrated design problem into multi-disciplines including the sub-discipline of the elastic band,the sub-discipline of the large-displacement movement in the projectile,and the sub-discipline of the internal wear and tear of the tube.The design variables and optimization objectives of each discipline are determined,and the finite element calculations of each sub-discipline are carried out based on the experimental design method.The practical application effects of various agent model techniques in this problem are analyzed and contrasted.Based on the actual characteristics of each sub-discipline,based on the multi-disciplinary optimization solving strategy,the key performance indicators of each sub-discipline are selected as the optimization goals,and the key parameters of each sub-discipline are selected as the design variables.Giving full play to the discipline autonomy of sub-disciplines,a multi-disciplinary optimization model of artillery artillery and ammunition integrated design problem based on agency model is established.The optimization effect is good,and has certain guiding significances for the subsequent large-caliber artillery and ammunition integrated design problem..