CAJ | 학술논문

针对影响火炮炮口扰动因素的问题，建立了某牵引火炮刚柔耦合参数化有限元模型，考虑了有限元弹炮耦合接触/碰撞、膛内时期膛线对弹丸的扭转、衬瓦与身管间隙、摇架板厚参数、火线高、耳轴及方向机刚度与阻尼、高平机刚度及阻尼、后大架尺寸参数等因素的影响。以炮口线速度和角速度表征炮口扰动，构建目标函数，通过灵敏度分析获得各因素对炮口扰动的影响程度。该结果为炮口扰动优化设计提供一定依据，对探寻各参数与炮口扰动关联性具有借鉴意义。
침대영향화포포구우동인소적문제，건립료모견인화포강유우합삼수화유한원모형，고필료유한원탄포우합접촉/팽당、당내시기당선대탄환적뉴전、츤와여신관간극、요가판후삼수、화선고、이축급방향궤강도여조니、고평궤강도급조니、후대가척촌삼수등인소적영향。이포구선속도화각속도표정포구우동，구건목표함수，통과령민도분석획득각인소대포구우동적영향정도。해결과위포구우동우화설계제공일정의거，대탐심각삼수여포구우동관련성구유차감의의。
Aimed at the factors that have influence on muzzle disturbance of gun,a parametric finite ele-ment model of a towed howitzer based on mixed rigid-flexible was established.The influences of contact-impact based on FEM proj ectile-barrel coupling,torsion effect of rifling on proj ectile when the proj ectile moving in bore,clearance between lining tile and barrel,plate thickness parameter of cradle,the height of firing line,stiffness and damping of trunnion and traversing mechanism,stiffness and damping of eleva-ting-equilibrium mechanism,dimension parameter of the howitzer's back trail were all considered.By use of linear velocity and angular velocity of muzzle to reflect muzzle disturbance,the obj ective function was established,and the degree of influence of structure parameters on muzzle disturbance was obtained by means of sensitivity analysis.This result can provide theoretical guide for optimization of muzzle disturb-ance,and have reference meaning for the relevance between parameters and muzzle disturbance.