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公开(公告)号：US20100065390A1
公开(公告)日：2010-03-18
申请号：US12233218
申请日：2008-09-18
IPC分类号： F16F7/10
CPC分类号： F16F7/116
摘要： A tuned mass damper is provided for use with a structure that vibrates at a first axial surge mode and a second axial surge mode, when exposed to a predetermined frequency range. The tuned mass damper includes a housing, an endcap, two masses, and two springs. The first and second masses are disposed in a housing cavity. The first tuned mass damper spring is disposed in the cavity coupling the first mass and the endcap. The second tuned mass damper spring is disposed in the cavity coupling the first and second masses. The tuned mass damper has first and second resonant frequencies in the predetermined frequency range to damp the first and second axial surge modes, respectively. The second mass resonates at an amplitude that is greater than an amplitude at which the first mass resonates, when the two masses are subjected to the second axial surge mode.
摘要翻译： 提供了一种调谐质量阻尼器，用于当暴露于预定频率范围时，以第一轴向喘振模式和第二轴向喘振模式振动的结构使用。 调谐质量阻尼器包括壳体，端盖，两个质量块和两个弹簧。 第一和第二质量块设置在壳体腔中。 第一调谐质量阻尼器弹簧设置在联接第一质量块和端盖的空腔中。 第二调谐质量阻尼器弹簧设置在联接第一和第二质量块的空腔中。 调谐质量阻尼器具有预定频率范围内的第一和第二谐振频率，以分别阻尼第一和第二轴向浪涌模式。 当两个质量受到第二轴向浪涌模式时，第二质量以大于第一质量共振的幅度的振幅谐振。
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公开(公告)号：US08002094B2
公开(公告)日：2011-08-23
申请号：US11651163
申请日：2007-01-09
IPC分类号： F16F7/10
CPC分类号： F16F7/116 , Y10T29/49615
摘要： A vibration isolation apparatus is provided that includes a main spring and a tuned mass damper. The main spring has a first end and a second end, and is configured to resonate when vibrated within a predetermined frequency range with a first axial surge mode having a magnitude. The tuned mass damper is coupled to the main spring at a first axial position located substantially equidistantly between the main spring first end and the main spring second end and is configured to reduce the first axial surge mode magnitude at least 50% when the main spring is vibrated within the predetermined frequency range. Methods of manufacturing the vibration isolation apparatus are also provided.
摘要翻译： 提供了一种包括主弹簧和调谐质量阻尼器的隔振装置。 主弹簧具有第一端和第二端，并且被配置为当具有大小的第一轴向喘振模式在预定频率范围内振动时谐振。 调谐质量阻尼器在基本上等距离地位于主弹簧第一端和主弹簧第二端之间的第一轴向位置处联接到主弹簧，并且构造成当主弹簧是主弹簧第一端和主弹簧第二端时将第一轴向喘振模式幅度减小至少50％ 在预定频率范围内振动。 还提供了制造隔振装置的方法。
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公开(公告)号：US20080164644A1
公开(公告)日：2008-07-10
申请号：US11651163
申请日：2007-01-09
CPC分类号： F16F7/116 , Y10T29/49615
摘要： A vibration isolation apparatus is provided that includes a main spring and a tuned mass damper. The main spring has a first end and a second end, and is configured to resonate when vibrated within a predetermined frequency range with a first axial surge mode having a magnitude. The tuned mass damper is coupled to the main spring at a first axial position located substantially equidistantly between the main spring first end and the main spring second end and is configured to reduce the first axial surge mode magnitude at least 50% when the main spring is vibrated within the predetermined frequency range. Methods of manufacturing the vibration isolation apparatus are also provided.
摘要翻译： 提供了一种包括主弹簧和调谐质量阻尼器的隔振装置。 主弹簧具有第一端和第二端，并且被配置为当具有大小的第一轴向喘振模式在预定频率范围内振动时谐振。 调谐质量阻尼器在基本上等距离地位于主弹簧第一端和主弹簧第二端之间的第一轴向位置处联接到主弹簧，并且构造成当主弹簧是主弹簧第一端和主弹簧第二端时将第一轴向喘振模式幅度减小至少50％ 在预定频率范围内振动。 还提供了制造隔振装置的方法。
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公开(公告)号：US08261896B2
公开(公告)日：2012-09-11
申请号：US12233218
申请日：2008-09-18
IPC分类号： F16F7/10
CPC分类号： F16F7/116
摘要： A tuned mass damper is provided for use with a structure that vibrates at a first axial surge mode and a second axial surge mode, when exposed to a predetermined frequency range. The tuned mass damper includes a housing, an endcap, two masses, and two springs. The first and second masses are disposed in a housing cavity. The first tuned mass damper spring is disposed in the cavity coupling the first mass and the endcap. The second tuned mass damper spring is disposed in the cavity coupling the first and second masses. The tuned mass damper has first and second resonant frequencies in the predetermined frequency range to damp the first and second axial surge modes, respectively. The second mass resonates at an amplitude that is greater than an amplitude at which the first mass resonates, when the two masses are subjected to the second axial surge mode.
摘要翻译： 提供了一种调谐质量阻尼器，用于当暴露于预定频率范围时，以第一轴向喘振模式和第二轴向喘振模式振动的结构使用。 调谐质量阻尼器包括壳体，端盖，两个质量块和两个弹簧。 第一和第二质量块设置在壳体腔中。 第一调谐质量阻尼器弹簧设置在联接第一质量块和端盖的空腔中。 第二调谐质量阻尼器弹簧设置在联接第一和第二质量块的空腔中。 调谐质量阻尼器具有预定频率范围内的第一和第二谐振频率，以分别阻尼第一和第二轴向浪涌模式。 当两个质量受到第二轴向浪涌模式时，第二质量以大于第一质量共振的幅度的振幅谐振。
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公开(公告)号：US06796563B2
公开(公告)日：2004-09-28
申请号：US10302502
申请日：2002-11-22
IPC分类号： F16J1552
CPC分类号： F16F9/36 , F16J3/041 , F16J15/52 , Y10T403/45
摘要： A hermetic seal (10) for a limited rotation device (12) includes a plurality of vertical convolutes (18) bonded to a device housing (16) at their respective first ends (19). At their respective second ends (21), plurality of the vertical convolutes (18) are bonded to a plurality of horizontal convolutes (20). The plurality of horizontal convolutes (20) are bonded to a device shaft (14) at an end opposite of the plurality of vertical convolutes (18). The plurality of vertical convolutes (18) stretch in order to provide limited rotation and the horizontal convolutes (20) expand or contract to accommodate length changes of the plurality of vertical convolutes (18). The hermetic seal (10) permits limited rotation while defining a barrier (26) and preventing viscous fluid leakage to an external environment.
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公开(公告)号：US06755287B2
公开(公告)日：2004-06-29
申请号：US10302455
申请日：2002-11-22
IPC分类号： F16D5700
CPC分类号： F16F9/12 , F16F2222/02
摘要： A rotary damper (10) includes a stationary member (12) and a rotating member (14) provided within the stationary member (12) so that a gap (16) is defined between the rotating member (14) and the stationary member (12). The rotating member (14) further includes a central shaft (18) provided therein. A viscous fluid (19) is provided in the gap (16) and has an associated shear that provides a velocity damping within the gap (16). A differential growth in the gap (16) caused by temperature variation compensates for temperature damping variation. A compliant member (20) is provided within the stationary member (12) for providing thermal compensation. A secondary hermetic seal (26) is provided on the stationary member (12) for permitting limited rotation, defining a vacuum environment and preventing viscous fluid leakage to an external environment.
摘要翻译： 旋转阻尼器（10）包括固定构件（12）和设置在固定构件（12）内的旋转构件（14），使得在旋转构件（14）和固定构件（12）之间限定间隙 ）。 旋转构件（14）还包括设置在其中的中心轴（18）。 在间隙（16）中提供粘性流体（19）并且具有相应的剪切，其在间隙（16）内提供速度阻尼。 由温度变化引起的间隙（16）的差异增长补偿了温度阻尼变化。 柔性构件（20）设置在固定构件（12）内，用于提供热补偿。 在静止构件（12）上设置有二次气密密封（26），用于允许有限的旋转，限定真空环境并防止粘性流体泄漏到外部环境。
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公开(公告)号：US06634472B1
公开(公告)日：2003-10-21
申请号：US10115387
申请日：2002-04-03
申请人： Toren S. Davis , David R. Koehler , James H. Boyd
发明人： Toren S. Davis , David R. Koehler , James H. Boyd
IPC分类号： F16F710
摘要： A tuned mass damper includes a container having first and second inside wall portions, and a proof mass disposed within the container. Multiple pairs of oppositely directed bellows containing damping fluid are connected between the wall portions and the mass to permit motion of the mass along primary axes. A spring is connected in series with each pair of bellows. The spring has a diameter substantially less than a diameter of the corresponding pair of bellows so that the spring and bellows allow translational movement of the mass about an axis other than the primary axes.
摘要翻译： 调谐质量阻尼器包括具有第一和第二内壁部分的容器和设置在容器内的检验质量块。 包含阻尼流体的多对相反方向的波纹管连接在壁部分和质量块之间，以允许质量块沿主轴运动。 弹簧与每对波纹管串联连接。 弹簧的直径基本上小于对应的一对波纹管的直径，使得弹簧和波纹管允许质料体围绕主轴线以外的轴线的平移运动。
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公开(公告)号：US06508437B1
公开(公告)日：2003-01-21
申请号：US10050066
申请日：2002-01-15
申请人： Toren S. Davis , Jack H. Jacobs , Steven L. Hadden
发明人： Toren S. Davis , Jack H. Jacobs , Steven L. Hadden
IPC分类号： B64G164
CPC分类号： F16F9/56 , B64G1/641 , B64G1/645 , F16F13/00 , F16F2224/0258 , Y10S292/66 , Y10T292/20
摘要： A spacecraft payload, suspended by an isolator, is locked down during launch by using a compliant member to pull on a pin, clamping the payload against the launch lock. The payload is unlocked, after launch, by heating a shape memory alloy to move the pin to overcome the compliant member, releasing the payload from launch lock. The payload may be re-locked for reentry by heating another shape memory alloy to push the pin against the other shaped memory alloy.
摘要翻译： 由隔离器悬挂的航天器有效载荷在发射过程中通过使用柔性构件拉动销来锁定，将有效载荷夹紧在发射锁上。 有效载荷在发射后被解锁，通过加热形状记忆合金以移动引脚以克服顺应性构件，从发射锁释放有效载荷。 可以通过加热另一形状记忆合金来将有效载荷重新锁定以重新进入，以将销推到另一形状的记忆合金上。
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公开(公告)号：US06715591B2
公开(公告)日：2004-04-06
申请号：US10041692
申请日：2002-01-08
申请人： Toren S. Davis
发明人： Toren S. Davis
IPC分类号： F16F930
CPC分类号： B64G1/641 , F16B1/0014 , F16F9/56 , F16F2224/0258
摘要： A spacecraft isolator including shape memory alloy components that are electronically heated to unlock the isolator. The isolator can be manually unlocked with an adjustment bolt.
摘要翻译： 包括形状记忆合金组件的航天器隔离器，电子加热以解锁隔离器。 隔离器可以用调节螺栓手动解锁。
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公开(公告)号：US06318923B1
公开(公告)日：2001-11-20
申请号：US09525202
申请日：2000-03-14
申请人： Toren S. Davis
发明人： Toren S. Davis
IPC分类号： F16C1106
CPC分类号： F16C11/12 , Y10T403/32861
摘要： A coupling comprises blade flexures that connect two end members through which control rods extend to cross members that are attached near the mid-points of the blade flexures, providing stable-linear load reaction means for use as end pivots for linkages where stick-slip motion is undesirable. The blade flexures are housed in a rigid cage comprising four separators that are attached to end members, and the flexures are attached to the end members by the separators.
摘要翻译： 联接器包括叶片挠曲件，其连接两个端部构件，控制杆通过该两个端部构件延伸到靠近叶片挠曲件的中点附近的横向构件，提供稳定的线性负载反作用装置，用作连杆的端部枢轴，其中粘滑运动 是不合需要的 刀片挠曲件容纳在刚性保持架中，该刚性保持架包括四个分离器，其连接到端部构件，并且挠曲件通过分离器附接到端部构件。
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