摘要
以液压马达驱动的无人机液压弹射系统为研究对象,给出了无人机弹射起飞和弹射后小车缓冲制动减速的工作原理。基于AMESim分别建立了无人机弹射起飞和小车缓冲制动减速仿真模型,分析了蓄能器最高蓄能压力、蓄能器体积、卷筒半径、插装阀通径、双向马达排量对无人机弹射起飞速度及位移的影响规律。研究了缓冲溢流阀开启压力对小车制动过程速度、位移和液压马达缓冲腔压力的影响规律,为无人机液压弹射系统的设计与优化提供指导。
Taking the hydraulic launching system of UAV as the research object, we present the working principles of the UAV launching and truck buffer brake process. The simulation model of the UAV launching and truck buffer brake process are established separately by the AMESim software. The impact of the highest energy storage pressure of accumulator, the volume of accumulator, the radius of drum, the cartridge valve diameter and the reversing motor displacement on the launching speed and displacement of UAV are analyzed and simulated. And the impact of the opening pressure of buffer relief valve on the buffer cavity pressure of hydraulic motor is studied and simulated. The simulation research provides a guidance for the design and optimization of UAV hydraulic launching system.
出处
《液压与气动》
北大核心
2017年第7期90-95,共6页
Chinese Hydraulics & Pneumatics
