Optimal Control of a Nonlinear Coupled Hydraulic-mechanical Aircraft Elevator System using Nonlinear Programming

摘要：

This paper illustrates how the performance of a nonlinear hydraulic-mechanical elevator system can be optimized using nonlinear programming (NLP) and simulation tools, which are available in Matlab and Simulink. They can easily be used to solve optimal control problems with state constraints. The method is presented using the model of a hydraulic actuator which is used in positioning the elevator mechanism of the HL-20 crew rescue vehicle, which was developed at NASA Langley. SimMechanics and Sim Hydraulics are used in order to model the hydraulic circuit and elevator mechanism separately. These subsystems then are integrated in Simulink environment in order to simulate the model performance. Simulink response optimization toolbox is then used to perform the constrained optimization task including tuning a PI controller gains. Simulation results show that the proposed controller can improve the system response effectively.

关键词： hydraulic-mechanical aircraft elevator system-Nonlinear programming SimHydraulics SimMechanics Simulink Response Optimization

作者: Pedram Safi Samghabadi Abolfath Nikranjbar

作者单位: Islamic Azad University-Karaj Branch Faculty of Engineering Karaj, Iran

会议类型: 国际会议

会议名称: 2010 International Conference on Measurement and Control Engineering(2010年IEEE测量与控制工程国际会议 ICMCE2010)

会议地点: 成都

会议语种:英文

页码: 198-202

在线出版日期: 2010-11-16（万方平台首次上网日期，不代表论文的发表时间）