南京理工大学学报（自然科学版）2025，Vol.49Issue(6)：700-710,11.DOI:10.14177/j.cnki.32-1397n.2025.49.06.008
楼板发射条件下迫击炮永磁电涡流反后坐阻尼设计
Design of permanent magnet eddy current recoil damping for mortars under floor firing conditions
摘要
Abstract
Future urban warfare requires mortars to adapt to complex urban environments and have the ability to launch under floor firing conditions,which puts higher demands on key indicators such as recoil.In order to avoid the destruction of the floor by the mortars in urban warfare,a permanent magnet eddy current damper is applied to the mortars based on the law of electromagnetic induction.Conduct finite element modeling and damage analysis of the floor subjected to mortar firing loads to explore the relationship between recoil and floor damage and destruction,and obtain a maximum recoil of 21 000 N for the mortar under floor firing conditions.Based on this load limit,design an eddy current recoil machanism,analyze its impact response characteristics such as electromagnetic damping force,recoil displacement,and recoil velocity,and explore the variation law of damping characteristics with structural parameters and key structural temperature characteristics under continuous firing.The average temperature rise of the permanent magnet under ten consecutive firing conditions is only 0.08 K/round,which is far less than its Curie temperature.The designed permanent magnet eddy current recoil device can meet the load boundary and continuous firing needs of mortar floor firing.关键词
迫击炮/永磁电涡流阻尼/楼板损伤破坏/反后坐/冲击响应Key words
mortar/permanent magnet eddy current damping/floor damage and destruction/recoil/impulse response分类
军事科技引用本文复制引用
Xie Jianhe,Wang Liqun,Zheng Xinyu,Yang Guolai,Guo Hao..楼板发射条件下迫击炮永磁电涡流反后坐阻尼设计[J].南京理工大学学报（自然科学版）,2025,49(6):700-710,11.基金项目
国家自然科学基金(12572433) （12572433）
基础加强计划项目(2023JCJQQT061) （2023JCJQQT061）
南京理工大学国防杰出人才培育基金(AS392201-001/066) （AS392201-001/066）
