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机构地区:[1]南京理工大学机械工程学院,江苏南京210094
出 处:《北京理工大学学报》2016年第5期446-451,共6页Transactions of Beijing Institute of Technology
基 金:国家自然科学基金资助项目(51575279)
摘 要:为提高某轮式自行火炮的综合性能,避免在设计过程中提高射击精度的同时使得射程与弹丸杀伤面积下降,建立了涉及内弹道、外弹道、终点效应和自行火炮总体布局与发射动力学的自行火炮一体化优化设计流程和优化设计模型.该模型采用集成优化思想,以炮口跳动垂直扰动最小、射程最远和杀伤面积最大为目标进行多目标一体化优化设计,得到了Pareto最优解集.根据工程经验选取的一组优化解与优化前相比.结果明显优于以炮口垂直扰动最小为目标的单目标优化设计结果.研究表明,综合考虑全弹道模型和自行火炮总体布局与发射动力学模型的某轮式自行火炮弹道-火炮一体化优化设计模型能够有效提高自行火炮的综合性能,避免了单个目标优化时其他目标严重劣化的现象,验证了该方法的有效性.To improve the overall performance of the wheeled self-propelled gun,and to avoid the range and lethal area serious degraded when improving the firing accuracy,a collaborative optimization process and model were proposed,integrating with the interior ballistics model,exterior ballistics model,terminal effects model and a self-propelled gun general layout and firing dynamics model. Based on the method of integrated optimization,taking the minimum muzzle vertical angular displacement,the longest range and the largest lethal area as the multi-objective,the optimization was carried out and the Pareto optimization solution was obtained. According to engineering experiences,a solution was chosen,the muzzle vertical angular velocity decreased by 30. 2% from 10. 6( °) / s to 7. 4( °) / s,the range increased by 1. 63% and the lethal area added by 46. 0%. The result is significantly better than the single-objective optimization aiming at the minimum muzzle vertical angular velocity. Studies show that the collaborative optimization model of trajectory and gun of a wheeled self-propelled gun can improve the overall performance of the wheeled self-propelled gun effectively and avoid the negative effect in single objective optimization where other objectives are degraded seriously.
分 类 号:TJ302[兵器科学与技术—火炮、自动武器与弹药工程]
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