大功率扭矩试验台伺服液压缸的建模与仿真

摘要

结合大功率扭转振动/疲劳试验机的实际需要,设计了液压伺服系统,对伺服控制系统进行了动态仿真,分别建立了位置控制系统和力控制系统的数学模型,采用频率分析法,分析了其动态性能,为系统控制提供理论依据.%According to the practical needs of test bed of torque with high power for vibration and fatigue, the hydraulic servo sys-tem was designed.Dynamic simulation on the servo control system was done, mathematic model was built of the position control system and force control system, and the frequency analysis method was used for its dynamic performance.It provides a theoretical basis on the system control.