摘要
舰炮无链供弹系统对保障舰炮稳定射击、有效拦截目标具有重要意义。为了提高舰炮无链供弹系统的可靠性,有必要分析舰炮在射击过程中供弹系统的动力学特性。文中基于刚柔耦合多体动力学理论,采用一种三维实体造型、有限元分析与多体动力学分析理论相结合的刚柔耦合动力学仿真分析方法,分别建立刚柔耦合动力学模型和刚体动力学模型,得到了不同动力学模型下供弹系统启动和稳定阶段阻力矩的大小,并与试验结果对比。研究结果表明:在启动和稳定运转阶段,刚柔耦合模型阻力矩相比于刚体模型更接近于现场试验结果,且柔性体的变形量与现场实测基本一致;刚体模型仿真结果在稳定运转阶段阻力矩与真实结果相差很大。因此对供弹系统建立刚柔耦合模型的动力学仿真,相比于刚体动力学仿真模型更能准确得到供弹系统相关的动力学特性。
Naval-gun non-chain feeding system has great significance to protect the stability of the naval gun and intercept the target effectively. In order to improve the reliability of the non-chain feeding system, it is necessary to analyze the dynamic characteristics of the feeding system during the shooting process. Based on the theory of rigid-flexible coupling multi-body dynamics, the author adopts a rigid-flexible coupling simulation method based on the three-dimensional solid modeling, finite element analysis and multi-body dynamics analysis theory. The author established the rigid-flexible coupling dynamics model and the rigid body dynamics model, the resistance torque of the start and stable phases of the feeding system under different dynamic models are obtained and compared with the experimental results. The results show that the resistance torque of the rigid-flexible coupling model is closer to the real test results than the rigid body model in the start and stable phase, and the deformation of the flexible body is basically the same as that of the real test results; but the simulation results of the rigid body model are very different from the real results in the stable phase. Therefore, the dynamic simulation of the rigid-flexible coupling model for the feeding system is more accurate than the rigid body dynamics simulation model.
作者
李利
魏立新
樊永锋
LI Li;WEI Li-xin;FAN Yong-feng(Zhengzhou Electromechanical Engineering Research Institute, Zhengzhou 450052, China)
出处
《舰船科学技术》
北大核心
2018年第12期150-154,共5页
Ship Science and Technology
基金
国防基础科研基金
海军武器装备预研项目
关键词
舰炮无链供弹系统
刚柔耦合模型
动力学仿真
阻力矩
naval-gun non-chain feeding system
rigid-flexible coupling model
dynamics simulation
resistancetorque
