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Meeting	ACGS Committee Meeting 99 - Boulder - March 2007
Agenda Location	9 SUBCOMMITTEE D – DYNAMICS, COMPUTATIONS AND ANALYSIS 9.3 Electric Actuation of Flight and Engine Controls
Title	Electric Actuation of Flight and Engine Controls
Presenter	Amit Kulshreshta (Moog, Inc.) and Jean-Jacques Charrier (Hispano Suiza)
Available Downloads*	presentation
	Downloads are available to members who are logged in and either Active* or attended this meeting.
Abstract	Electric actuators have been developed over last 10~15 years and are replacing traditional hydraulic actuators used for aircraft flight control systems. Electric actuators provide electric power on demand instead of constant power dissipation across hydraulic valve-actuation system thus allowing energy optimization. These aircraft and engine actuators – under the sponsorship of More Electric Aircraft (MEA) and More Electric Engine (MEE) have common objective to conserve energy, reduce environmental pollution, enhance functionality and improve reliability, maintainability. This paper will review state of art and architecture in electric actuators including electro-hydrostatic actuators (EHA) and electro-mechanical actuators (EMA) technology focusing on electric motor drives-including electronic power converter and electric motors technology. The issue of fault tolerant architecture and issues for jam tolerance will also be discussed to improve availability and enhance safety for electric powered actuator. It will also review electrical interface issues including electric power and flight control computer electronics interface and the design considerations to minimize weight cost and improve reliability as well as civil certification objectives. Finally it will highlight possible scope in design innovation and challenges for a safety critical and cost sensitive design.