In spite of the potential benefits such as weight decrease, expanded security and  unwavering quality, lower utilization, diminished support costs, etc. electrical actuators are  not completely grasped by the industry due the impediments they display in their current  improvement arrange, which anticipate them from being utilized enormously or in basic  zones, such as flying machine essential flight controls activation. These restrictions are  tall actuator weight, security concerns due to the sticking likelihood of electromechanical  actuators, warm behavior and electromagnetic compatibility issues.

The purposeful to unravel these issues through the improvement, fabricating and  exploratory approval forms, which objective was the improvement of the territorial fly lift  control framework based on electrically fueled actuators: electromechanical (EMA) and  electrohydrostatic actuators. The actuator’s by and large see and fundamental  characteristics are spoken to below.


Fig. 1. EMA isometric view.


Being a highly critical application with lots of cross-related physical domains to be taken  into account, the development of such system should rely on wide and intensive  simulation activities through the whole development cycle. As the result the development  of the detailed EMA dynamic mathematical model was started by the consortium in order  to obtain static and dynamic actuator characteristics assessment and detailed evaluation,  to tune the electronic control unit (controller) parameters, to check the elevator control  system thermal behavior through the complete flight mission profile and to confirm the  compliance of the closed control loop ?aircraft – flight control system – actuation system?  parameters with the requirements (stability margins and step responses parameters), as  it’s well known that the actuators characteristics (especially in the region of small control  signals) can drastically influence the stability of an aircraft. In addition, the possibility to  provide to the industry the highly detailed and validated model which can be used within  further EMA development programs on the early design stage is obvious.

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