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    • 3. 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。
    • 4. 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。
    • 6. 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。