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.
gas-hydraulichybrid driveinterior ballisticexperimental research
国家科技期刊平台
NSTL
万方数据
