Modal control of an electrohydrostatic flight simulator motion system


Plummer, A. R. and Guinzio, P. S., 2010. Modal control of an electrohydrostatic flight simulator motion system. In: Proceedings of the ASME Dynamic Systems and Control Conference 2009, DSCC2009. Vol. B. New York: American Society of Mechanical Engineers, pp. 1257-1264.

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Valve-controlled electro-hydraulic actuators in a Stewart platform configuration have become established as a good way of meeting the performance required for flight simulator motion systems. However, valve-controlled actuators are very inefficient, and thus an electrohydrostatic motion system, controlled using servomotor driven pumps, has been developed by Thales, and is now in production. This paper presents a simulation study of a multi-axis controller which can improve the dynamic response of the new motion system. A modal control approach is used - i.e. the modes of vibration of the system are controlled individually. These modes are dependent on the inertial properties of the platform and the compliance of the actuators. The modes change as the motion system moves throughout its workspace, and so the controller has to adapt to the current operating point. Simulation results are presented based on a partially validated model of the motion system.


Item Type Book Sections
CreatorsPlummer, A. R.and Guinzio, P. S.
DepartmentsFaculty of Engineering & Design > Mechanical Engineering
Research CentresCentre for Power Transmission & Motion Control
ID Code19771
Additional Information2009 ASME Dynamic Systems and Control Conference, DSCC2009. 12-14 October 2009. Hollywood, CA, United States.


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