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    • 1. 发明申请
    • EXTENSILE FLUIDIC MUSCLE ACTUATOR
    • 超声流体肌肉执行器
    • US20110067563A1
    • 2011-03-24
    • US12955242
    • 2010-11-29
    • Benjamin K.S. WoodsNorman M. WereleyCurt KotheraShane M. Boyer
    • Benjamin K.S. WoodsNorman M. WereleyCurt KotheraShane M. Boyer
    • F15B15/10
    • A61F2/08A61F2002/0894A61F2002/5066F15B15/103
    • An Extensile Fluidic Muscle Actuator (FMA) that changes the normal direction of force and motion, achieving compressive force generation and extensile motion output with just a small increase in friction, weight, and cost is disclosed. The motion conversion is accomplished by a pushrod that is attached to the inside end of one of the actuator's end fittings, and extends through the actuator body and slidably out through the other end fitting. The other end fitting is held stationary by a seal housing that contains a sealing element to retain internal fluid pressure as the actuator moves. A linear bearing may also be installed to keep the rod aligned and centered properly in the seal. Upon pressurization of the actuator, the flexible body of the actuator will expand radially, causing relative contractile motion between the two end fittings. However, as the two end fittings are drawn towards each other, the pushrod is extended.
    • 公开了一种通过改变法向方向和运动的拉伸流体肌肉致动器(FMA),实现压缩力产生和伸展运动输出,同时摩擦,重量和成本仅有小幅增加。 运动转换是通过一个推杆来实现的,该推杆连接到致动器端部配件中的一个的内端,并且延伸穿过致动器本体并且可滑动地穿过另一端配件。 另一端配件通过密封壳体固定,该密封壳体包含密封元件,以在致动器移动时保持内部流体压力。 还可以安装线性轴承,以使杆保持对准并适当地居中在密封中。 在致动器加压时,致动器的柔性体将径向膨胀,引起两个端部配件之间的相对收缩运动。 然而,由于两端配件相互牵引,推杆延伸。
    • 3. 发明申请
    • Fluidic Artificial Muscle Actuation System For Trailing-Edge Flap
    • 用于尾边瓣的流体人造肌肉激励系统
    • US20110266391A1
    • 2011-11-03
    • US13097623
    • 2011-04-29
    • Curt KotheraNorman M. WereleyBenjamin K.S. Woods
    • Curt KotheraNorman M. WereleyBenjamin K.S. Woods
    • B64C13/36
    • B64C27/72B64C2027/7272Y02T50/34
    • An actuation system for trailing-edge flap control suitable for use in reducing vibration in rotorcraft blades as well as primary flight control and noise mitigation employing an antagonistic pair of fluidic artificial muscles (FAMs) located and operated inside the rotor blade. The FAMs are connected to a force transfer mechanism such as an inboard bellcrank and engaged to an outboard bellcrank by one or more linkages running spanwise out through the spar. The outboard mechanism translates the spanwise linkage motion into chordwise motion of a flap control rod which is connected to the trailing-edge flap. A torsion rod flexure (TRF) device is included connecting the trailing-edge flap to the blade. The actuation system can produce large flap deflections at relatively high operating frequencies for vibration reduction and noise cancellation and is capable of larger flap deflections at lower operating frequencies for embedded primary control of the rotorcraft.
    • 用于后缘翼片控制的致动系统,其适用于减少旋翼飞行器叶片中的振动,以及使用位于和操作在转子叶片内的对流的一对流体人造肌(FAM)进行主飞行控制和噪声减轻。 FAM连接到力传递机构,例如内侧曲拐,并且通过一个或多个连接件通过翼梁向外伸出而与外侧的曲拐接合。 外侧机构将翼展方向联动运动转换成连接到后缘翼片的翼片控制杆的弦向运动。 扭转杆弯曲(TRF)装置包括将后缘翼片连接到叶片上。 致动系统可以在较高的工作频率下产生较大的襟翼偏转,用于降低振动和消除噪声,并且能够在较低的工作频率下对旋翼飞机的嵌入式主控制进行较大的襟翼偏转。