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1. 发明授权

US06340137B1 Moment control unit for spacecraft attitude control 有权
标题翻译：用于航天器姿态控制的时刻控制单元
公开(公告)号：US06340137B1
公开(公告)日：2002-01-22
申请号：US09139989
申请日：1998-08-26
申请人： Lawrence P. Davis , Tristam T. Hyde
发明人： Lawrence P. Davis , Tristam T. Hyde
IPC分类号： B64K128
CPC分类号： B64G1/286 , B64G1/283 , B64G1/285 , B64G1/36 , G05D1/0883
摘要： A moment control device for positioning a spacecraft which employs a plurality of spinning bodies operable to impart a desired torque to a space craft, the bodies being constructed in a unitary combination and the unitary combination being mounted to the spacecraft to be positioned.
摘要翻译：一种用于定位航天器的力矩控制装置，其使用多个旋转体，其可操作以向空间飞船施加期望的扭矩，所述主体以单一组合构造，并且所述单一组合安装到所述航天器以定位。

2. 发明授权

US6082508A Pneumatic damping strut 失效
标题翻译：气动阻尼支柱
公开(公告)号：US6082508A
公开(公告)日：2000-07-04
申请号：US842283
申请日：1997-04-23
申请人： Lawrence P. Davis
发明人： Lawrence P. Davis
IPC分类号： F16F9/04
CPC分类号： F16F9/0472
摘要： A vibration isolator which uses a compressible fluid such as air within a pair of flexible chambers interconnected by a restrictive passage, with one of the chambers connected between a first member which may vibrate and a second member which is to be isolated from vibration so that with vibration of the first member, the compressible fluid is compressed and expanded to force compressible fluid to flow through the restrictive passage between the first and second flexible chambers, and provide desired damping of vibration to the second member.
摘要翻译：一种隔振器，其使用可压缩流体，例如通过限制通道互连的一对柔性室内的空气，其中一个室连接在可振动的第一构件和与振动隔离的第二构件之间，第一构件的振动，可压缩流体被压缩和膨胀以迫使可压缩流体流过第一和第二柔性腔室之间的限制通道，并且向第二构件提供期望的振动阻尼。

3. 发明授权

US07121729B2 Damped bearing cage 有权
标题翻译：阻尼轴承保持架
公开(公告)号：US07121729B2
公开(公告)日：2006-10-17
申请号：US10802072
申请日：2004-03-15
申请人： Lawrence P. Davis , Dennis W. Smith
发明人： Lawrence P. Davis , Dennis W. Smith
IPC分类号： F16C33/38
CPC分类号： F16C33/3843 , F16C19/06 , F16C2300/02 , F16F7/104
摘要： Method and apparatus are provided for reducing vibration in bearings. There are provided first and second bearing rings with races, rotating members rollingly engaging both first and second bearing races, a cage for aligning the rotating members between the first and second bearing races, and vibration reduction means coupled to the cage. The vibration reduction means preferably comprises one or more resonant spring-mass combinations mounted in or on the cage. Damping means is preferably included with the resonant spring-mass combinations. The resonant frequencies of the unmodified bearing cage are first determined and then the spring-mass combinations tuned so that the spring-mass combinations when attached to the cage absorb vibrational energy that would otherwise excite cage vibrations. By selecting the type of spring-mass combination different vibrational modes can be suppressed and/or controlled.
摘要翻译：提供了减少轴承振动的方法和装置。提供具有座圈的第一和第二轴承环，滚动地接合第一和第二轴承座圈的旋转构件，用于对准第一和第二轴承座圈之间的旋转构件的保持架以及联接到保持架的减振装置。减振装置优选地包括安装在笼中或笼上的一个或多个谐振弹簧组合组合。谐振弹簧 - 质量组合优选地包括阻尼装置。首先确定未修改的轴承保持架的共振频率，然后调整弹簧质量组合，使得当连接到保持架上时弹簧 - 质量组合吸收振动能量，否则其将激发笼振动。通过选择弹簧 - 质量组合的类型，可以抑制和/或控制不同的振动模式。

4. 发明授权

US4760996A Damper and isolator 失效
标题翻译：阻尼器和隔离器
公开(公告)号：US4760996A
公开(公告)日：1988-08-02
申请号：US110076
申请日：1987-10-09
申请人： Lawrence P. Davis
发明人： Lawrence P. Davis
IPC分类号： F16F9/10 , F16F9/52 , F16F5/00
CPC分类号： F16F9/52 , F16F9/10
摘要： A vibration damping and isolation apparatus wherein in damping is obtained by purely viscous fluid shear forces. The fluid is sealed in two chambers divided by a orifice to permit fluid flow. Chamber containment of the fluid and chamber volume change is provided by metal bellows which are arranged to provide a constant overall volume. Coulomb forces are avoided by the elimination of rubbing surfaces.
摘要翻译：一种减振和隔离装置，其中阻尼是通过纯粘性流体剪切力获得的。流体被密封在两个分隔开的孔中以允许流体流动。液体和室体积变化的室容纳由金属波纹管提供，金属波纹管被布置成提供恒定的总体积。通过消除摩擦表面来避免库仑力。

5. 发明授权

US07012271B2 Electromagnetic radiation structure control system 失效
标题翻译：电磁辐射结构控制系统
公开(公告)号：US07012271B2
公开(公告)日：2006-03-14
申请号：US10401651
申请日：2003-03-28
申请人： Dimitry Gorinevsky , Tristram T. Hyde , Lawrence P. Davis
发明人： Dimitry Gorinevsky , Tristram T. Hyde , Lawrence P. Davis
IPC分类号： G01V8/00
CPC分类号： G01B11/24 , G02B26/06 , G02B26/0825 , H01Q3/01 , H01Q15/147 , H01Q19/00
摘要： A control system is provided for controlling the shape of a flexible electromagnetic radiation structure. The control system includes a plurality of actuators and a plurality of computational elements. Each of the plurality of actuators is coupled to a portion of the radiation structure and can be selectively actuated by the plurality of computational elements. Thus, the plurality of actuators and the plurality of computational elements provide control of the flexible electromagnetic radiation structure shape. In one embodiment, each of the plurality of computational elements controls one section of the flexible electromagnetic radiation structure. Thus each of the plurality of computational elements receives controls the one or more of the plurality of actuator within its section. Together, the plurality of computational elements provide a distributed control network for the radiation structure. The control system thus provides the ability to accurately control and shape a flexible electromagnetic radiation structure.
摘要翻译：提供一种用于控制柔性电磁辐射结构的形状的控制系统。控制系统包括多个致动器和多个计算元件。多个致动器中的每一个被耦合到辐射结构的一部分并且可以由多个计算元件选择性地致动。因此，多个致动器和多个计算元件提供对柔性电磁辐射结构形状的控制。在一个实施例中，多个计算元件中的每一个控制柔性电磁辐射结构的一部分。因此，多个计算元件中的每一个接收控制其部分内的多个致动器中的一个或多个。多个计算元件一起提供用于辐射结构的分布式控制网络。因此，控制系统提供了精确控制和形成柔性电磁辐射结构的能力。

6. 发明授权

US5305981A Multiaxis vibration isolation system 失效
标题翻译：多轴隔振系统
公开(公告)号：US5305981A
公开(公告)日：1994-04-26
申请号：US785726
申请日：1991-10-31
申请人： David C. Cunningham , Lawrence P. Davis , Frank M. Schmitt
发明人： David C. Cunningham , Lawrence P. Davis , Frank M. Schmitt
IPC分类号： B64G1/38 , B64G1/28 , F16F1/14 , F16F9/16 , F16F9/52 , F16F9/54 , F16F15/00 , F16F15/02 , F16M13/00
CPC分类号： F16F15/02 , B64G1/283 , F16F1/14 , F16F9/16 , F16F9/52 , F16F9/54
摘要： A system for isolating a supported structure from transmitting vibrations to a supporting base in a spacecraft provides six degrees of freedom in a kinematic mounting. Six isolator elements in a symmetric arrangement of three skewed isolator pairs provides viscous damping and vibration and shock attenuation during launch and operation in space. The isolators employ two degrees of freedom flexure joints at each mounting point to assure primarily axial deflection and minimize bending moments, and have tuning springs to optimize performance. The system permits deterministic design and allows calculation of all loads from the nominal geometry and the isolator axial stiffness. Limit stops are provided between the supporting structure and the supported structure to limit excursions of the isolator members.
摘要翻译：用于隔离支撑结构以将振动传递到航天器中的支撑基座的系统在运动学安装中提供了六个自由度。三个偏斜隔离器对的对称布置中的六个隔离器元件在空间发射和操作期间提供粘性阻尼和振动和冲击衰减。隔离器在每个安装点采用两个自由度弯曲接头，以确保主要的轴向偏转和最小化弯矩，并具有调谐弹簧以优化性能。该系统允许确定性设计，并允许从标称几何和隔离器轴向刚度计算所有负载。在支撑结构和支撑结构之间设置限位件以限制隔离件的偏移。

7. 发明授权

US5219051A Folded viscous damper 失效
标题翻译：折叠粘度阻尼器
公开(公告)号：US5219051A
公开(公告)日：1993-06-15
申请号：US783748
申请日：1991-10-25
申请人： Lawrence P. Davis
发明人： Lawrence P. Davis
IPC分类号： B64G1/38 , F16F9/28 , F16F13/00 , F16F15/023 , G10K11/16 , H02K5/00
CPC分类号： F16F15/023 , F16F13/00
摘要： A viscous damper for absorbing vibrations of low amplitude over a wide frequency range. Two working volumes of resiliently deformable material, in the form of a bellows, are provided in a folded structure joined by a base carrying a restrictive annular fluid passage. Compressive forces applied to the primary volume are transmitted by a damping fluid through the restrictive annulus to the secondary volume, the resulting energy dissipation providing a damping effect. A hermetically sealed configuration provides multi-axis damping and isolation without wearing of frictional surfaces. Large damping values are attained with linear performance over a large dynamic range. While the deformable members bear an inverse volumetric relationship as fluid is moved from one of the members through the fluid passage to the other member, the total volume of the members is substantially unconstrained, therefore permitting independent deformation with expansion or contraction of the damping fluid with respect to variations in temperature.

8. 发明授权

US5775472A Multi-axis tuned mass damper 失效
标题翻译：多轴调谐质量阻尼器
公开(公告)号：US5775472A
公开(公告)日：1998-07-07
申请号：US754487
申请日：1996-11-22
申请人： David A. Osterberg , Lawrence P. Davis
发明人： David A. Osterberg , Lawrence P. Davis
IPC分类号： F16F7/10 , F16F9/10 , F16F15/00 , F16F15/02
CPC分类号： F16F9/10 , F16F15/02 , F16F7/10
摘要： A tuned mass damper using a single predetermined mass connected to springs of predetermined stiffness along each of at least two directions to absorb energy from a vibrating structure to which it is attached and damp the vibrations in a rapid and efficient manner with a minimum of weight and volume used.
摘要翻译：一种调谐质量阻尼器，其使用与至少两个方向中的每一个连接到具有预定刚度的弹簧的单个预定质量，以从其附接的振动结构吸收能量，并且以最小的重量以快速和有效的方式减振振动，使用量

9. 发明授权

US5318156A Rigid volume viscous damper 失效
标题翻译：刚性体积粘性阻尼器
公开(公告)号：US5318156A
公开(公告)日：1994-06-07
申请号：US991025
申请日：1992-12-15
申请人： Lawrence P. Davis
发明人： Lawrence P. Davis
IPC分类号： F16F9/10 , F16F9/20 , F16F9/512 , F16F9/04 , F16F9/08
CPC分类号： F16F9/20 , F16F9/10 , F16F9/512 , F16F2230/10
摘要： A damping apparatus including a piston having an axis therethrough. The piston includes a coaxial body portion and a first and second end extending oppositely therefrom along the axis. A rigid housing is coaxial with and surrounds the body of the piston for forming a rigid fluid volume between the piston and the rigid housing. The rigid fluid volume includes a first fluid chamber at a first end of the piston and a second fluid chamber at the second end of the piston. The first and second fluid chambers are connected by a damping path. The damping apparatus further includes a flexible housing coupled to the first and second ends of the piston and surrounding the rigid housing to form a fluid return of lower resistance to flow than the damping path between the rigid housing and the flexible housing and to allow movement of the rigid housing with respect to the piston. The rigid housing forms a first and second restrictive path about the first and second ends of the piston, respectively, of higher resistance to flow than the damping path to allow fluid to flow between the fluid return and the rigid fluid volume.
摘要翻译：一种阻尼装置，包括具有穿过其中的轴的活塞。活塞包括同轴主体部分和沿着轴线相对地延伸的第一和第二端部。刚性壳体与活塞主体同轴并围绕活塞的主体，以在活塞和刚性壳体之间形成刚性流体体积。刚性流体体积包括在活塞的第一端处的第一流体室和在活塞的第二端处的第二流体室。第一和第二流体室通过阻尼路径连接。阻尼装置还包括一个与活塞的第一和第二端连接并围绕刚性壳体的柔性壳体，以形成比刚性壳体和柔性壳体之间的阻尼路径更低的流动阻力的流体返回，并允许刚性壳体相对于活塞。刚性壳体分别围绕活塞的第一和第二端分别形成比阻尼路径更高的阻力流动的第一和第二限制性路径，以允许流体在流体返回和刚性流体体积之间流动。

10. 发明授权

US3980358A Axial vibration damper for floating bearings 失效
标题翻译：浮动轴承用推力减振器
公开(公告)号：US3980358A
公开(公告)日：1976-09-14
申请号：US553189
申请日：1975-02-26
申请人： Lawrence P. Davis
发明人： Lawrence P. Davis
IPC分类号： F16C27/04 , F16F15/023 , F16F15/315 , F16C19/00
CPC分类号： F16F15/023 , F16C27/045 , F16F15/3156 , Y10T74/12
摘要： A floating bearing having a stationary member and an axially translating member including a pair of O-rings which in combination with surfaces of the movable member and the stationary member define a contained space which is further subdivided by an extension of a surface of either the translating member or the stationary member to form two chambers substantially enclosed but connected through a restricted space formed by the extremity of the extension and a proximate opposing surface of the other member. The chambers are substantially filled with a viscous fluid which provides damping of axial displacements of said movable member relative to said stationary member produced in vibratory environments.
摘要翻译：具有固定构件的浮动轴承和包括一对O形圈的轴向平移构件，其与可动构件和固定构件的表面组合限定了容纳空间，该容纳空间进一步被平移的表面的延伸部分构件或固定构件以形成基本封闭但通过由延伸部的末端形成的受限空间和另一构件的紧密相对表面连接的两个室。腔室基本上填充有粘性流体，其提供所述可移动构件相对于在振动环境中产生的所述静止构件的轴向位移的阻尼。

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