摘要
针对先进作战飞机发射或投放武器后,武器舱舱门的高速运动将对周围流场产生强烈干扰的问题,在FL-24风洞中建立了舱门开闭动态模拟试验装置。介绍试验装置的构成,利用舱门和舱内布置的动态及静态压力传感器对如舱门动态载荷特性、舱内气动噪声特性、以及St数变化影响等进行研究,并通过预先分析运动历程,估算驱动舱门所需力矩和电机功率,进行机电系统优化设计,反复调试控制程序,达到舱门转动高速响应、精确定位的目的。试验结果表明:试验装置设计合理,运行可靠,舱门最短开/闭时间约为0.15 s,能够准确模拟舱门高速开闭历程,并可拓展到其他多项试验研究。
Aiming at intense interference on fluid field close to weapon cabin's door, which takes place before/after launching or injecting of fighting plane's weapon, a dynamic test mechanism of weapon cabin's door was established successfully in FL-24 wind tunnel. Constituent of the mechanism is introduced. It was used to research aerodynamic loads of weapon cabin's door, and aero-acoustic noise of weapon bay, and the influence of theirs with variable St, with dynamic and static pressure sensors that were planted in the door and weapon cavity of the test equipment. The model door can turn responsively and accurately by analysis of rotating process, and calculating of drive torque, and estimate motor power, and optimization design of mechanical-electronic system, and a lot of adjusting on control program. The experimental results indicate that the dynamic test mechanism is designed reasonably and can run reliably. The shortest opening/closing time is about 0.15s of weapon cabin's door. The system has capacity to simulate opening or closing process of the door precisely. At the same time, more test ability of the mechanism can be expanded.
出处
《兵工自动化》
2014年第2期77-81,共5页
Ordnance Industry Automation
关键词
武器舱舱门
试验装置
风洞
动态载荷
weapon cabin's door
test mechanism
wind tunnel
dynamic load