为了研究火炮系统结构参数对弹丸膛内运动和炮口扰动的影响，通过引入虚拟体，提出了一种充分反映弹炮间相互作用的火炮动力学建模方法，推导了含虚拟体项的自行火炮刚柔耦合动力学方程；同时，以某型履带式自行火炮为例，引入多目标优化算法，建立了以弹丸和炮口初始扰动为目标函数的火炮系统多目标优化设计模型，获得了在相同射击条件下试验测试数据和仿真计算结果的对比曲线，以及结构参数的优化结果。分析表明，采用该方法建立的模型能较真实地反映火炮系统的动态响应特性和弹丸的膛内运动规律，且在考虑弹丸与柔性身管接触碰撞的前提下实现了弹丸和火炮运动的多目标优化设计，可以为自行火炮的发射动力学研究提供一定参考。
Abstract
In order to investigate the influence of the gun structural parameters in the bullet motion and muzzle disturbance, a model considering the bullet-barrel interaction was set up by introducing virtual substances. The rigid-flexible coupling dynamics equation of the self-propelled gun system was derived. Taking a tracker self-propelled artillery for an example, the system optimization model was obtained in which the initial disturbances of the muzzle and the projectile were regarded as the objective function. As a result, the comparative curves between the experimental data and the calculation result under the same firing condition were obtained, so the optimization result of structural parameters was. The result shows that this model can reflect truly both the system dynamic response and the bullet motion regularity. Besides, the multi-objective model was optimized on the premise of considering the bullet-barrel contact, which provides reference for the launching dynamics research of the self-propelled gun.
关键词
虚拟体 /
弹炮 /
刚柔耦合 /
多目标优化平
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Key words
virtual substance /
projectile-barrel /
rigid-flexible coupling /
multi-objective optimization
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参考文献
[1] 徐达,胡俊彪,穆歌. 基于刚柔耦合的坦克炮发射动力学 仿真分析[J]. 装甲兵工程学院学报,2009, 23(4): 45-47,51.
XU Da, HU Jun-biao, MU Ge. Simulation analysis on tank gun firing dynamics based on rigid-flexible coupling [J]. Journal of Academy of Armored Force Engineering, 2009, 23(4):45-47, 51.
[2] 苏忠亭，徐 达，李晓伟等.小口径火炮弹炮耦合动态响应有限元时程分析[J]. 振动与冲击，2012 31(23):104-108.
SU Zhong-ting, XU Da, Li Xiao-wei, et al. Finite-element Time-history Analysis for Dynamic Response of Small-caliber Guns with Projectile-barrel Coupling. [J]. Journal of Vibration and Shock, 2012, 31(23): 104-108.
[3] HUANG C H, GALUSKI J, BLOEBAUM C L. Multi-Objective Pareto Concurrent Subspace Optimization for Multidisciplinary Design [J]. American Institute of Aeronautics and Astronautics, 2007, 45(8): 1894-1906.
[4] 史跃东，王德石. 舰炮振动的刚柔耦合动力学分析[J]. 弹道学报，2010, 22(1):37-39,44.
SHI Yue-dong, WANG De-shi. Vibration Analysis of Naval Gun by Rigid-flexible Coupling Dynamics [J]. Journal of Ballistics, 2010, 22(1): 37-39,44.
[5] 刘伟,王晓亮,何洪文. 基于代理模型的6×6轮式平台 悬架参数优化[J]. 计算机仿真, 2014, 31(6): 191-196.
LIU Wei, WANG Xiao-liang, HE Hong-wen. Optimization Desgin of 6×6 Wheeled Platform Suspension Paraments Based on Surrogate Model[J]. Computer Simulation, 2014,31(6):191-196.
[6] 葛建立,杨国来,曾晋春. 某自行火炮总体结构参数灵敏度分析与优化[J]. 火炮发射与控制学报, 2007(1): 16-19.
Ge Jian-li, YANG Guo-lai, ZENG Jin-chun. Sensitivity Analysis and Optimization of Integrated Structural Parameters for a Type of Wheeled Self-Propelled Gun [J]. Journal of Gun Launch &control. 2007(1): 16-19.
[7] IMED K, LOTFI R. Dynamic analysis of a flexible slider-crank mechanism with clearance [J]. European Journal of Mechanics A/Solids, 2008, 27(5): 885-887.
[8] 冯勇,徐振钦.某型火箭炮多形态耦合发射动力学建模与仿真分析[J].振动与冲击，2014，33(11):95-99.
FENG Yong,XU Zhen-qin. Launch dynamic modeling and simulation analysis of multi-rocket launch system with rigid-flexible coupled and rigid body-liquid coupled methods[J]. Journal of Vibration and Shock, 2014, 33(11):95-99.
[9] 张志新,胡振东.考虑弹丸与身管轴向运动耦合的火炮系统时变动力学分析[J].振动与冲击，2013,32(20):67-71.
ZHANG Zhi-xin,HU Zhen-dong.Artillery time-varing dynamic system considering coupling between bullet's moving and barrel's axial movement[J].Journal of Vibration and Shock,2013,32(20):67-71.
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