摘要
为提升某大型起竖-翻转设备的快速响应能力,开发了一种新型燃气-液压混合作动装置,针对该新型混合动力装置,建立了变构型燃烧“凹型”药柱燃面推移变化数学模型及气液混合作动装置内弹道数值计算模型,完成了样机研制和空放试验研究,通过变构型燃烧“凹型”药柱的燃面匹配设计,实现了对不同燃烧阶段作动装置的快速建压和流量的稳定输出控制,验证了本文所建立的内弹道数值计算模型的准确性及该混合作动装置系统设计的可靠性。在此基础上,分析了“凹型”药柱设计参数对作动装置工作性能的影响,计算结果表明:作动装置输出流量的大小和响应时间的快慢主要与“凹型”药柱初始燃面及增面燃烧阶段肉厚的大小相关,药柱整体高度则决定了作动装置系统工作时间;在本文计算工况下,凹槽直径和药柱高度每增加10 mm,作动装置响应速度、平均输出流量和工作时间分别提升0.09 s、13 L/min和0.2 s左右。研究结果可为大型起竖装置的快速展开提供一种新的动力源及内弹道设计方法。
To improve the response capability of large vertical overturning equipment,a new type of gas hydraulic hybrid actuator was designed.A mathematical model for the movement and change of the"concave"grain combustion surface at different combustion stages and a numerical calculation model for the internal ballistic of the gas-liquid hybrid actuator were established.To verify the accuracy of the numerical model,product development and experimental research were carried out for the gas-liquid hybrid power device.Through the matching design of the combustion surface of the"concave"grain,rapid pressure building and stable output control of the flow rate at different combustion stages were achieved.The accuracy of the internal ballistic numerical model established in this article and the reliability of the hybrid actuator system design were verified.On this basis,the influence of the design parameters of the"concave"grain on the working performance of the actuator was analyzed.The calculation results show that the output flow rate of the actuator and the response time are mainly related to the initial combustion surface and the thickness of the flesh during the increased combustion stage of the"concave"grain,and the overall height of the grain determined the working time of the actuator system.Under the calculation conditions of this article,for every 10 mm increase in groove diameter and grain height,the response speed,average output flow rate,and working time of the actuator increase by about 0.09 s,13 L/min,and 0.2 s,respectively.The research results provide a new power source and internal ballistic design method for the rapid deployment of large vertical devices.
作者
王金龙
董朝庆
王后
WANG Jinlong;DONG Zhaoqin;WANG Hou(Beijing Institute of Space Launch Technology,Beijing 100076,China)
出处
《弹道学报》
CSCD
北大核心
2024年第2期53-58,共6页
Journal of Ballistics
关键词
燃气-液压
混合动力
内弹道设计
试验研究
gas-hydraulic
hybrid drive
interior ballistic
experimental research
