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ELECTROMECHANICAL ACTUATOR (EMA) ADVANCED TECHNOLOGIES FOR FLIGHT CONTROLS

机译：机电执行器（EMA）飞行控制的先进技术

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In the frame of Sagem Research & Technology (R&T) programs related to new Flight Control Systems (FCS) for commercial aircrafts , an Electro Mechanical Actuator (EMA) developed and produced by Sagem (SAFRAN Group) flew for the first time in January 2011 ,as a primary flight control for an aileron application . Since then, 114 flight hours have been accumulated. With this new type of actuator, in the scope of the preparation of future more electrical aircrafts, the use of the EMA technologies for the flight control systems is an important potential enabler. Thus, aircraft manufacturers will eventually be able to replace all or part of the hydraulic systems that activate flight controls with lighter and simpler electrical systems, offering the required reliability. The paper deals with the development of this type of actuator from the definition up to various tests campaigns. It is focused on advanced technologies used in the Sagem's EMA that permits a highly integrated design, making it small enough to be installed in the reduced space of the wing, as well as several patented innovations. It will also offer a very long service life, to meet one of the main challenges facing tomorrow's jetliners. "More electric" aircraft are lighter and more energy-efficient than conventional aircraft, enabling them to reduce fuel consumption and therefore the total cost of ownership as well as environmental impact. Based on the success of these first flight hours testing, the design of a "more electric" wing should be possible in the next coming years, including EMA 's for the primary and secondary actuators flight controls, in a nearly production-standard configuration. Nevertheless, Electro Hydrostatic Actuator (EHA) and Hydraulic Actuator (HA) technologies are making improvement, at the same time, and these technologies must also be considered for future programs, according to the type of aircraft to be equipped. This paper mainly describes the two posters that are presented by Sagem during this ICAS 2012 International Congress.
机译：在与商用飞机的新飞行控制系统（FCS）相关的SAGEM研究和技术（R＆T）计划中，由SAGEM（SAFRAN GROUP）开发和生产的电力机械执行器（EMA）在2011年1月首次飞行，作为Aileron应用程序的主要飞行控制。从那时起，已经积累了114个飞行时间。利用这种新型的执行器，在制备未来更多电机的范围内，使用EMA技术的飞行控制系统是一个重要的潜在推动因素。因此，飞机制造商最终能够更换所有或部分液压系统，这些液压系统用更轻和更简单的电气系统激活飞行控制，提供所需的可靠性。本文从定义上开发了这种类型的执行器，从定义到各种测试活动。它专注于Sagem Ema中使用的先进技术，允许高度集成的设计，使其足够小，以安装在翼的减少的空间中，以及几项专利的创新。它还可以提供很长的使用寿命，满足明天的喷气客机面临的主要挑战之一。 “更多电动”飞机比传统飞机更轻，更节能，使它们能够降低燃料消耗，从而降低总体拥有成本以及环境影响。基于这些第一次飞行时间测试的成功，在未来几年内应有“更多电动”翼的设计，包括初级和辅助执行器飞行控制的EMA，包括几乎生产标准配置。然而，电静压执行器（EHA）和液压执行器（HA）技术在同时进行改进，并且根据要装备的飞机类型，也必须考虑这些技术以供未来的程序。本文主要介绍了在此ICAS 2012国际国会期间由Sagem提供的两家海报。

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