Abstract: Piezoelectric actuator technology has now reached a level where macro-positioning applications in the context of smart structures can be considered. One application with high payoffs is vibration reduction, noise reduction, and performance improvements in helicopters. Integration of piezoelectric actuators in the rotor blade is attractive, since it attacks the problem at the source. The present paper covers the development of a piezoelectric actuator for trailing edge flap control on a 34-foot diameter helicopter main rotor. The design of an actuator using bi-axial stack columns, and its bench, shake, and spin testing are described. A series of enhancements lead to an improved version that, together with use of latest stack technology, meets the requirements. Next steps in this DARPA sponsored program are development of the actuator and full scale rotor system for wind tunnel testing in the NASA Ames 40 $MUL 80 foot wind tunnel and flight testing on the MD Explorer.!13
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机译：摘要：压电致动器技术现已达到可以考虑在智能结构中进行宏观定位应用的水平。高回报的一种应用是减少振动，降低噪音并提高直升机的性能。压电致动器在转子叶片中的集成是吸引人的，因为它从源头上解决了该问题。本文涵盖了压电致动器的发展，该致动器用于控制34英尺直径直升机主旋翼上的后缘襟翼。描述了使用双轴堆栈柱的执行器的设计及其工作台，摇动和旋转测试。一系列增强功能导致了改进版本，并结合使用最新的堆栈技术，可以满足要求。此DARPA赞助计划的下一步是开发用于NASA Ames 40 $ MUL 80英尺风洞的风洞测试和MD MD Explorer上的飞行测试的执行器和全尺寸转子系统。！13
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