考虑摆臂柔性的舰炮摆弹机构动作可靠性及灵敏度分析

Analysis of action reliability and sensitivity of naval gun ammunition swing device in view of flexible swing arm

针对蒙特卡罗法计算复杂机构动作可靠度时计算效率不高的问题,提出了以计算机仿真模型为基础、蒙特卡罗法与支持向量回归机相结合的机构动作可靠性分析方法。利用该方法对摆弹机构的动作可靠度进行了仿真计算,并根据灵敏度和偏导数的定义,进行了摆弹机构的可靠性灵敏度分析。分析结果表明:摆弹机构的可靠度为0.990 21,炮弹重心到齿轮轴心的距离对其可靠性的影响最大。

Based on computer simulation model combining MCS and SVR ,a method is proposed to in-crease the efficiency of computating the action reliability of the complex mechanism system .The simu-lation of action reliability of the ammunition swing device is carried out efficiently and precisely .Ac-cording to the definitions of sensitivity and partial derivative ,the sensitivity of the ammunition swing device is analyzed by Monte Carlo method .The results show that the reliability of device is 0 .990 21 and the distance from the gravity center of ammunition to the gear axis has the greatest influence on the reliability of ammunition swing device .