某自行火炮总体结构参数灵敏度分析与优化

Sensitivity Analysis and Optimization of Integrated Structural Parameters for a Type of Wheeled Self-Propelled Gun

为了有效地降低某轮式自行火炮高低炮口扰动,对武器系统的总体结构参数优化进行了初步研究。建立了考虑炮身弹性变形、自动机主要构件的运动和碰撞等复杂因素的全炮动力学模型。根据某火炮的结构组成和发射原理,把武器系统简化成由身管、供弹臂、弹丸、摇架、炮塔、底盘等24个物体组成的多体系统。在对影响炮口垂直扰动的主要参数进行灵敏度分析的基础上,利用随机方向优化算法对武器系统的总体结构参数进行了优化。优化效果明显,为武器系统的总体设计和结构设计提供了理论依据。

In order to effectively reduce muzzle disturbance of a type of wheeled self-propelled gun, initial study was performed, and dynamic model of overall gun system based on complex factors such as barrel elastic deformation, movement and impact of automatic mechanism main parts etc. was set up. According to structural composition and fire principle of a type of gun, weapon system was simplified into multi-body system consisted of 24 bodies such as barrel, feed arm, projectile, cradle, turret, chassis and so on. Based on sensitivity analysis of structural parameters that have effect on muzzle vertical disturbance, overall structural parameters of weapon system were optimized by means of random direction optimization algorithm. Optimization result is good, and it can provide theoretical guide for system overall design and structural design of weapon system.