基于计算流体力学的火炮制退机故障仿真研究  

Research on Faults of Recoil Brake Based on Collaborative Simulation Technology

作　　者：孙也尊[1] 秦俊奇[1] 狄长春[1] 张晓东 

机构地区：[1]军械工程学院,河北石家庄050003 [2]轻武器论证研究所,北京102202

出　　处：《计算机仿真》2014年第2期31-34,96,共5页Computer Simulation

摘　　要：火炮制退机是控制火炮受力和运动的关键部件,基于经典力学和经验公式的火炮后坐计算模型,有较大的局限和误差,且不能实现对制退机内流场参量分布的模拟计算。针对以上两个问题,提出采用计算流体力学和多软件协同仿真技术研究制退机故障的新方法。通过对制退机进行故障分析,建立基于两相流的制退机MATLAB/FLUENT协同仿真模型,对节制环磨损机理和制退杆活塞套磨损对火炮后坐运动的影响规律进行了仿真分析,为制退机故障机理和性能退化规律的进一步研究提供了有效途径。Recoil brake is an important device for artillery. However, the many limitations and errors exists in calculation model of artillery recoils because of basing on classical mechanics and empirical formulas. To solve the problems, a new method was proposed by adopting computational fluid dynamics and co - simulation technology of multi - software. Through the failure analysis of recoil brake, a MATLAB/FLUENT co - simulation model of recoil brake in two - phase theory was built. The wear mechanism of throttling ring and the influence of recoil bar piston bush wear on artillery recoil movement were simulated and analyzed. And it provides an effective way for the further research on failure mechanism and the law of performance degradation of recoil brake.

关 键 词：火炮 制退机 协同仿真 故障分析 计算流体力学 

分 类 号：TJ303[兵器科学与技术—火炮、自动武器与弹药工程]