ADAMS某大口径迫击炮弹机械触发引信设计
关键词 迫击炮弹 引信 钟表机构 仿真
毕业论文设计说明书外文摘要
Title System analysis and design calculations for a large caliber contact mortar fuze
Abstract
To ensure the correctness of the designed structural, check the thread strength of fuze by theoretical caculation;to ensure the safety distance of institution of arming delay ,calculated the safe distance of shock wave ; in order to get the time of arming performance,calculated by using the theory of exterior ballistics then obtain the coefficient of projectile and the velocity under minimum charge,and designed a clockwork and relevant calculation of torsional spring .In order to analyze motion process of clockwork, the ADAMS software was used to simulation, reached the movement characteristic of rotor and the delay time of clockwork and starting torque . The results show that clockwork arming delay distance is longer than muzzle safe separation distance and improving the structure of torsion spring; to ensure the reliability of safety and arming, the safety and arming performance of the satety device was calculated by theory; The results show that two degree setback arming device can arming reliably under launch overload and ensure safety of the safe feature droping steel target at 1.5 m height;two degree initiation mechanism firing reliable under launch overload and ensure safety of the safe feature droping steel target at 1.5 m height.To ensure the correctness of the dimensions designed, dimensions chain of important dimension of fuze were calculated.
Keywords mortat fuze clockwork simulation
目 次
1 引言 1
1.1 本课题研究背景 1
1.2 迫击炮弹引信技术现状 1
1.3 本课题研究的主要内容 5
2 总体设计 6
2.1 引信主要战术技术指标 6
2.2 技术方案的分析和选择 6
2.3 结构组成 10
3 设计计算及校核 13
3.1 过载系数的计算 13
3.2 弹体和引信体螺纹连接强度校核 13
3.3 引信体和传爆管联接螺纹强度计算校核 14
4 弹簧设计计算 16
4.1 弹道簧 16
4.2 击针簧 20
4.3 惯性筒簧 22
4.4 反恢复簧 24
4.5 火帽座簧 26
4.6 扭簧 27
5 延期解除保险性能计算 30