【摘要】 针对弹药引信发火机构作用率偏低的问题，将鲁棒性分析、概率设计方法引入到引信设计中，开展弹药引信触发机构的性能预测及优化等系统仿真研究.首先建立了瞬发发火机构的动力学模型，并通过有限元仿真的方法验证了机构在标称值下能够满足设计要求，即引信能够可靠触发；其次进行基于尺寸公差散布的蒙特卡洛仿真进行触发性能评估，得到的目标值散布数据并非全部满足设计要求；然后使用最优拉丁超立方试验设计得到了各尺寸变量对目标值的贡献率，利用Pointer算法对贡献率较大的变量公差进行优化；最后对优化后的结果进行了验证，结果表明优化后的目标值散布数据全部符合设计要求.通过对引信发火机构的鲁棒性分析及优化，在性能可靠性和制造成本之间寻求一个平衡，对提高产品性能、降低制造生产成本具有重要意义.更多还原

【Abstract】 To deal with the low operation rate of the firing mechanism of ammunition fuze,robustness analysis and probabilistic design methods were introduced into the fuze design to carry out system simulation research on performance prediction and optimization of the firing mechanism of ammunition fuze. Firstly,the dynamic model of the instant firing mechanism was established,and the finite element simulation method was used to verify that the mechanism could meet the design requirements under the nominal value,that is,the fuze could fire reliably. Secondly,Monte Carlo simulation based on dimensional tolerance dispersion was carried out to evaluate fire performance,and not all the obtained target value dispersion data could meet the design requirements. Then,the contribution rate of each dimension variable to the target value was obtained by using the DOE(design of experiment) of optimal Latin hypercube,and the Pointer algorithm was used to optimize the variable tolerance with high contribution rate. Finally,the optimized results were verified,and the results showed that all the optimized target value distribution data met the design requirements. By analyzing and optimizing the robustness of fuze firing mechanism,it is of great significance to find a balance between performance reliability and manufacturing cost to improve product performance and reduce manufacturing cost.更多还原