The application of magnetostriction in the design of a hybrid, electromechanical/hydraulic high-performance linear (large force and stroke) and/or rotational (large moment and angle) actuator is considered. The design concept combines the high power density of actuation possible with magnetostriction (approaching 0.1 HP/cm/sup 3/ of the magnetostrictive material assuming 3 kHz excitation frequency) and the design flexibility of hydraulics. The objective of the research described was to validate the concept theoretically and to study alternatives and improvements. The system, as currently envisioned, offers very small packaging volume (approximately an order of magnitude smaller than conventional electromechanical systems), flexible packaging (relative location of the major system components is not critical), and easy control (precise control of actuation speed, quick reverse time, and inherent position lockup). The major technical problems associated with the design are outlined, and results of a computer simulation of a prototype actuator are presented.
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机译：考虑了磁致伸缩在混合动力，机电/液压高性能线性（大力和行程）和/或旋转（大力矩和角度）执行器设计中的应用。该设计理念结合了可能的高致动功率密度和磁致伸缩（假设激励频率为3 kHz，接近磁致伸缩材料的0.1 HP / cm / sup 3 /）和液压系统的设计灵活性。所描述研究的目的是从理论上验证该概念并研究替代方案和改进方案。按照目前的设想，该系统的包装体积非常小（比传统的机电系统小大约一个数量级），柔性包装（主要系统组件的相对位置并不重要）以及易于控制（精确控制驱动速度，快速倒退时间和固有位置锁定）。概述了与设计相关的主要技术问题，并给出了原型执行器的计算机仿真结果。
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