摘要
针对迫击炮新型组合式座钣结构,建立组合式座钣与土壤耦合的有限元模型与座钣与硬质地面简化模型,采用有限元法,对组合式座钣的强度和刚度进行校核,并在射角85°/0°的工况下,对主座钣进行轻量化设计。运用拓扑优化方法确定主座钣的载荷传递路径,优化座钣结构与材料分布,使主座钣质量降低14.93%,最大应力为610.5 MPa,出现在立筋与主钣面连接的主钣边缘。在45°射角时座钣最大位移为6.3 mm,组合式座钣的刚强度满足设计要求,可为迫击炮新型座钣研制提供参考。
For the new combined baseplate structure of the mortar,a finite element model coupling the combined baseplate with soil and a simplified model of the baseplate with a rigid surface were established.The finite element method was used to verify the strength and stiffness of the combined baseplate.Under the firing angle conditions of 85°/0°,the main baseplate was designed for weight reduction.The load transfer path of the main baseplate was determined using topology optimization,and the structure and material distribution of the baseplate were optimized.This resulted in a 14.93%reduction in the mass of the main baseplate,with the maximum stress of 610.5 MPa occurring at the edge of the main baseplate connected to the main plate surface by the vertical rib.When the firing angle was 45°,the maximum displacement of the baseplate was 6.3 mm.The stiffness and strength of the combined baseplate meet the design requirements and can serve as a reference for the development of the new mortar baseplate.
作者
孟宪泽
喻栋
石明玉伊
王与时
刘宁
MENG Xianze;YU Dong;SHI Mingyuyi;WANG Yushi;LIU Ning(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;Hunan Ordnance Dongsheng Machinery Manufacturing Co.,Ltd.,Xiangtan 411100,China)
出处
《兵器装备工程学报》
北大核心
2025年第S1期8-13,共6页
Journal of Ordnance Equipment Engineering
基金
武器装备预先研究项目(301071904)
国家级大学生创新创业训练计划项目(202310288023)。
关键词
迫击炮座钣
有限元分析
动力学仿真
拓补优化设计
轻量化
mortar baseplate
finite element analysis
dynamic simulation
topology optimization design
lightweight design
作者简介
孟宪泽(2002-),男,E-mail:9211010E0533@njust.edu.cn;通信作者:刘宁(1980-),男,博士,副教授,硕导,E-mail:ln101@163.com。
