液压助力器虚拟试验平台多体动力学仿真

Multi-Body Dynamics Simulation of a Virtual Test Platform for Hydraulic Booster

液压助力器是飞机关键部件之一,其工作性能直接影响到飞机操纵性能和飞行安全。以LMS Virtual. Lab Motion平台为建模环境,建立了飞机液压助力器虚拟试验平台,通过建立液压助力器虚拟试验平台的运动学和动力学模型,对其试验系统的关键件进行模态分析,刚柔耦合分析和液压助力器在不同工况下的性能测试。研究结果对液压助力器试验系统的运动学和动力学分析具有实际意义和参考价值,对降低物理试验研发成本,缩短研制周期和提高研制能力具有十分重要的意义。

The hydraulic booster is one of the key components of the aircraft, which performance directly affects the aircraft handling performance and aircraft safety. The LMS Virtual. Lab Motion platform was used as the modeling environment to establish a virtual test platform for an aircraft hydraulic booster. By establishing the kinematics and dynamics model of the hydraulic booster virtual test platform, the modal analysis of the critical parts of the test system, the rigid-flexible coupling analysis and the performance testing of the hydraulic booster under different working conditions were conducted. The result indicates that it has practical significance and reference value for the kinematics and dynamics analysis of the hydraulic booster test system. It is of great significance to reduce the research and development costs of physical tests, shorten the development period and improve the design capability.