引信MEMS后坐机构的设计与实验

摘要/Abstract

摘要： 通过受力分析并根据动能定理建立了影响后坐机构加速度as的关系式和动力学方程，得到弹性系数K、两侧齿之间竖直方向的间隙d、齿的斜边长a、齿底长c和齿数n的大小决定着as大小的结论。通过ADAMS软件仿真分析，得到运动方程和设计的合理性，并得到K、d、a、c、n与as的关系。仿真结果表明，在同等条件下，严格控制齿底长c的加工误差、减小错位间隙d、增大线宽b均能提高as。同时考虑增大齿数n来提高as。对采用LIGA工艺加工出的后坐机构进行模拟实验，验证了仿真分析的合理性和加工误差的影响，同时验证了设计和运动方程的合理性。

关键词: 解锁机构, 后坐力, 仿真, 加工误差

Abstract: By using mechanics analysis and the work-energy theorem, the as value of the recoil was determined by elastic coefficient k，the gap d between two teeth in the vertical direction，the bevel edge a in the teeth，the bottom margin c in the teeth and the number n of teeth. The ADAMS simulation was used to determine the rationality of the motion equations and design, the relationship among elastic coefficient k，the gap d between two teeth in the vertical direction，the bevel edge a in the teeth，the bottom margin c in the teeth，the number n of teeth and the as value. The simulation results show that, under the same conditions, the machining errors of c are strictly controled. At the same time, the dislocation clearance of d is decreased and the line width of b is increased, to improve the recoil as values. The increase of n may be taken into consideration to improve the recoil as values. While the simulation experiments were carried out for the recoil mechanism, which was made by LIGA process, it verifies the rationality of the simulation analysis, and the machining errors have a great influences on the experiments. At the same time, it verifies the rationality of design and the motion equations.

Key words: unlocking mechanism, recoil, simulation, machining error

中图分类号:

TH122

邓炬锋, 史春景, 郝永平, 许马会. 引信MEMS后坐机构的设计与实验[J]. 中国机械工程.

Deng Jufeng, Shi Chunjing, Hao Yongping, Xu Mahui. Design and Experiments of Recoil Mechanism Based on Fuze Micro-Electro-Mechanical System[J]. China Mechanical Engineering.

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