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    • 1. 发明授权
    • Magnetorheological fluid elastic lag damper for helicopter rotors
    • 直升机转子磁流变弹性滞后阻尼器
    • US08413772B2
    • 2013-04-09
    • US12378275
    • 2009-02-12
    • Norman Mark WereleyWei HuCurt Steven KotheraPeter Che-Hung ChenGrum Tamrat Ngatu
    • Norman Mark WereleyWei HuCurt Steven KotheraPeter Che-Hung ChenGrum Tamrat Ngatu
    • F16F9/53
    • B64C27/51F16F1/40F16F13/305
    • A MagnetoRheological Fluid Elastic (MRFE) lag damper system for adaptive lead-lag damping of helicopter main rotors. Embodiments include snubber dampers especially for hingeless helicopter rotors, and concentric bearing dampers. The snubber lag dampers include a flexible snubber body defining a cavity, a flexible or rigid interior (e.g., center) wall subdividing the cavity, and a flow valve in the interior wall or external to the cavity. The flexible snubber body may comprise elastomeric materials and metal rings stacked together to create a sealed MR fluid cavity. The shear deformation of the snubber body induces MR fluid flow through the valve, controlled by a magnetic field in the valve. An MRFE concentric bearing damper is also disclosed, comprising a pair of concentric tubes with elastomeric material injected and cured in an annular gap between the two tubes, and an MR fluid reservoir with piston-mounted MR valve housed inside the innermost tube.
    • 一种用于直升机主转子自适应超前滞后阻尼的磁流变弹性(MRFE)滞后阻尼器系统。 实施例包括特别用于无铰链直升机转子的缓冲阻尼器和同心轴承阻尼器。 缓冲滞后阻尼器包括限定空腔的柔性缓冲器主体,细分空腔的柔性或刚性内部(例如,中心)壁,以及在内壁中或在空腔外部的流量阀。 柔性缓冲体可以包括弹性体材料和堆叠在一起以形成密封的MR流体腔的金属环。 缓冲体的剪切变形引起MR流体流过阀门,由阀门中的磁场控制。 还公开了一种MRFE同心轴承阻尼器,其包括一对具有弹性体材料的同心管,该弹性体材料在两个管之间的环形间隙中注入和固化,并且具有容纳在最内管内的活塞安装的MR阀的MR流体储存器。
    • 2. 发明申请
    • MAGNETORHEOLOGICAL FLUID ELASTIC LAG DAMPER FOR HELICOPTER ROTORS
    • 用于直升机转子的磁流变弹性拉杆阻尼器
    • US20140090937A1
    • 2014-04-03
    • US13630421
    • 2012-09-28
    • Norman Mark WereleyWei HuCurt Steven KotheraPeter Che-Hung Chen
    • Norman Mark WereleyWei HuCurt Steven KotheraPeter Che-Hung Chen
    • B64C27/00F16F9/53
    • B64C27/001B64C27/51F16F9/535F16F13/305F16F2236/103
    • A MagnetoRheological Fluid Elastic (MRFE) lag damper system for adaptive lead-lag damping of helicopter main rotors. Embodiments include snubber dampers especially for hingeless helicopter rotors, and concentric bearing dampers. The snubber lag dampers include a flexible snubber body defining a cavity, a flexible or rigid interior (e.g., center) wall subdividing the cavity, and a flow valve in the interior wall or external to the cavity. The flexible snubber body may comprise elastomeric materials and metal rings stacked together to create a sealed MR fluid cavity. The shear deformation of the snubber body induces MR fluid flow through the valve, controlled by a magnetic field in the valve. An MRFE concentric bearing damper is also disclosed, comprising a pair of concentric tubes with elastomeric material injected and cured in an annular gap between the two tubes, and an MR fluid reservoir with piston-mounted MR valve housed inside the innermost tube.
    • 一种用于直升机主转子自适应超前滞后阻尼的磁流变弹性(MRFE)滞后阻尼器系统。 实施例包括特别用于无铰链直升机转子的缓冲阻尼器和同心轴承阻尼器。 缓冲滞后阻尼器包括限定空腔的柔性缓冲器主体,细分空腔的柔性或刚性内部(例如,中心)壁,以及在内壁中或在空腔外部的流量阀。 柔性缓冲体可以包括弹性体材料和堆叠在一起以形成密封的MR流体腔的金属环。 缓冲体的剪切变形引起MR流体流过阀门,由阀门中的磁场控制。 还公开了一种MRFE同心轴承阻尼器,其包括一对具有弹性体材料的同心管,该弹性体材料在两个管之间的环形间隙中注入和固化,并且具有容纳在最内管内的活塞安装的MR阀的MR流体储存器。
    • 3. 发明申请
    • Magnetorheological fluid elastic lag damper for helicopter rotors
    • 直升机转子磁流变弹性滞后阻尼器
    • US20090218443A1
    • 2009-09-03
    • US12378275
    • 2009-02-12
    • Norman Mark WereleyWei HuCurt Steven KotheraPeter Che-Hung Chen
    • Norman Mark WereleyWei HuCurt Steven KotheraPeter Che-Hung Chen
    • B64C13/00
    • B64C27/51F16F1/40F16F13/305
    • A MagnetoRheolocial Fluid Elastic (MRFE) lag damper system for adaptive lead-lag damping of helicopter main rotors. Embodiments include snubber dampers especially for hingeless helicopter rotors, and concentric bearing dampers. The snubber lag dampers include a flexible snubber body defining a cavity, a flexible or rigid interior (e.g., center) wall subdividing the cavity, and a flow valve in the interior wall or external to the cavity. The flexible snubber body may comprise elastomeric materials and metal rings stacked together to create a sealed MR fluid cavity. The shear deformation of the snubber body induces MR fluid flow through the valve, controlled by a magnetic field in the valve. An MRFE concentric bearing damper is also disclosed, comprising a pair of concentric tubes with elastomeric material injected and cured in an annular gap between the two tubes, and an MR fluid reservoir with piston-mounted MR valve housed inside the innermost tube.
    • 一种用于直升机主转子自适应超前滞后阻尼的磁流变弹性(MRFE)滞后阻尼器系统。 实施例包括特别用于无铰链直升机转子的缓冲阻尼器和同心轴承阻尼器。 缓冲滞后阻尼器包括限定空腔的柔性缓冲器主体,细分空腔的柔性或刚性内部(例如,中心)壁,以及在内壁中或在空腔外部的流量阀。 柔性缓冲体可以包括弹性体材料和堆叠在一起以形成密封的MR流体腔的金属环。 缓冲体的剪切变形引起MR流体流过阀门,由阀门中的磁场控制。 还公开了一种MRFE同心轴承阻尼器,其包括一对具有弹性体材料的同心管,该弹性体材料在两个管之间的环形间隙中注入和固化,并且具有容纳在最内管内的活塞安装的MR阀的MR流体储存器。
    • 8. 发明授权
    • Rotary vane magnetorheological (MR) energy absorber
    • 旋转叶片磁流变(MR)能量吸收器
    • US08424656B2
    • 2013-04-23
    • US12814708
    • 2010-06-14
    • Gregory J. HiemenzWei HuGrum NgatuNorman Mark Wereley
    • Gregory J. HiemenzWei HuGrum NgatuNorman Mark Wereley
    • F16F9/53F16D57/02
    • F16F9/537F16F9/3415
    • A rotary vane magnetorheological energy absorber, which enables a longer stroke capability in a more compact configuration than conventional magnetorheological devices, is disclosed. This novel device design is attractive for applications where long stroking capability, high force dynamic range, device size, and device weight are important. The improved magnetorheological energy absorber comprises an internal or external flow valve and a hollow body enclosing fixed and rotary vanes as well as magnetorheological fluid. Fluid flow in the valve is restricted as a solenoid is activated, thus adjusting the capability of the device to react torque. Various flow valve configurations are disclosed, as well as various motion translation mechanisms for translating linear motion to rotary motion for use of the rotary vane magnetorheological energy absorber. The improved design minimizes the amount of magnetorheological fluid required as compared to conventional linear stroke energy absorbers, thus minimizing device weight.
    • 公开了一种旋转叶片磁流变能量吸收器,其使得能够以比常规磁流变装置更紧凑的构造更长的冲程能力。 这种新颖的设备设计对于长行程能力,高力动态范围,设备尺寸和设备重量很重要的应用是有吸引力的。 改进的磁流变能量吸收器包括内部或外部流量阀和封闭固定和旋转叶片以及磁流变流体的中空体。 当螺线管被激活时,阀门中的流体流动受到限制,从而调节装置对扭矩作出反应的能力。 公开了各种流量阀结构,以及用于将线性运动转换成旋转运动以用于旋转叶片磁流变能量吸收器的各种运动平移机构。 与传统的线性行程能量吸收器相比,改进的设计使得需要的磁流变流体的量最小化,从而使装置重量最小化。
    • 9. 发明申请
    • ROTARY VANE MAGNETORHEOLOGICAL (MR) ENERGY ABSORBER
    • 旋转电磁波(MR)能量吸收器
    • US20100300819A1
    • 2010-12-02
    • US12814708
    • 2010-06-14
    • Gregory J. HiemenzWei HuGrum NgatuNorman Mark Wereley
    • Gregory J. HiemenzWei HuGrum NgatuNorman Mark Wereley
    • F16F9/53H01F1/44
    • F16F9/537F16F9/3415
    • A rotary vane magnetorheological energy absorber, which enables a longer stroke capability in a more compact configuration than conventional magnetorheological devices, is disclosed. This novel device design is attractive for applications where long stroking capability, high force dynamic range, device size, and device weight are important. The improved magnetorheological energy absorber comprises an internal or external flow valve and a hollow body enclosing fixed and rotary vanes as well as magnetorheological fluid. Fluid flow in the valve is restricted as a solenoid is activated, thus adjusting the capability of the device to react torque. Various flow valve configurations are disclosed, as well as various motion translation mechanisms for translating linear motion to rotary motion for use of the rotary vane magnetorheological energy absorber. The improved design minimizes the amount of magnetorheological fluid required as compared to conventional linear stroke energy absorbers, thus minimizing device weight.
    • 公开了一种旋转叶片磁流变能量吸收器,其使得能够以比常规磁流变装置更紧凑的构造更长的冲程能力。 这种新颖的设备设计对于长行程能力,高力动态范围,设备尺寸和设备重量很重要的应用是有吸引力的。 改进的磁流变能量吸收器包括内部或外部流量阀和封闭固定和旋转叶片以及磁流变流体的中空体。 当螺线管被激活时,阀门中的流体流动受到限制,从而调节装置对扭矩作出反应的能力。 公开了各种流量阀结构,以及用于将线性运动转换成旋转运动以用于旋转叶片磁流变能量吸收器的各种运动平移机构。 与传统的线性行程能量吸收器相比,改进的设计使得需要的磁流变流体的量最小化,从而使装置重量最小化。