Bi-stable magnetic latch assembly
    1.
    发明申请
    Bi-stable magnetic latch assembly 有权
    双稳磁锁组件

    公开(公告)号:US20070279168A1

    公开(公告)日:2007-12-06

    申请号:US11448382

    申请日:2006-06-06

    IPC分类号: H01F7/14

    摘要: A bi-stable magnetic switch assembly is provided that comprises a stator and a rotor, which is configured for rotation with respect to the stator between a first latched position and a second latched position. The stator and the rotor cooperate to form a first magnetic path and a magnetic path having a shared portion. A spring, which is coupled to the rotor, biases the rotor toward the first and second latched positions when the rotor is in the second and first latched positions, respectively. At least one magnet is fixedly coupled to either the stator or the rotor. The magnet is included within the first magnetic path and configured to produce a magnetic latching force that biases the rotor toward first latched position when the rotor is closer to the first latched position than to the second latched position, and toward the second latched position when the rotor is closer to the second latched position than to the first latched position. At least one coil is fixedly coupled to either the stator or the rotor and, when energized, alters the flux in the second magnetic path to reduce the magnetic latching force.

    摘要翻译: 提供了一种双稳态磁开关组件,其包括定子和转子,其被配置为相对于定子在第一锁定位置和第二锁定位置之间旋转。 定子和转子协作形成具有共享部分的第一磁路和磁路。 当转子处于第二和第一锁定位置时,联接到转子的弹簧分别将转子朝向第一和第二锁定位置偏压。 至少一个磁体固定地联接到定子或转子上。 所述磁体包括在所述第一磁路内,并被配置为产生磁力锁定力,当所述转子比所述第二锁定位置更靠近所述第一锁定位置时,所述磁性锁定力将所述转子朝向所述第一锁定位置偏压,并且当 转子比第一锁定位置更靠近第二锁定位置。 至少一个线圈固定地耦合到定子或转子上,并且当被激励时,改变第二磁路中的磁通以减小磁性锁定力。

    High speed optical element switching mechanism
    2.
    发明授权
    High speed optical element switching mechanism 有权
    高速光学元件切换机构

    公开(公告)号:US07013057B2

    公开(公告)日:2006-03-14

    申请号:US10103534

    申请日:2002-03-20

    IPC分类号: G02B6/26

    摘要: The present invention provides an optical element switching mechanism that overcomes many of the disadvantages found in the prior art. The switching mechanism uses a balanced arm, with an optical element attached at one end of the arm. The arm is suspended on a axis that allows it to rotate from a first position to a second position. The arm is balanced to provide low force disturbance during this movement. A spring is coupled to the arm that provides the rotational energy to move the arm. The spring is coupled such that its neutral position is between the first and second positions, and thus the spring provides the energy to move the arm from the first position to the second position and vice versa. A latch mechanism is also provided for selectively holding the arm in the first position or second position. Additionally, the latch mechanism can provide additional energy needed to catch and move the arm into final position.

    摘要翻译: 本发明提供了克服现有技术中存在的许多缺点的光学元件切换机构。 切换机构使用平衡臂,其中一个光学元件安装在臂的一端。 臂悬挂在允许其从第一位置旋转到第二位置的轴上。 平衡臂在此运动期间提供较低的力量扰动。 弹簧联接到臂,其提供旋转能量以移动臂。 弹簧联接成使得其中性位置在第一和第二位置之间,因此弹簧提供能量以将臂从第一位置移动到第二位置,反之亦然。 还设置有用于将臂保持在第一位置或第二位置的闩锁机构。 此外,闩锁机构可以提供将臂移动到最终位置所需的额外的能量。

    Method and apparatus for reducing acoustic coupling
    3.
    发明授权
    Method and apparatus for reducing acoustic coupling 有权
    减少声耦合的方法和装置

    公开(公告)号:US06371412B1

    公开(公告)日:2002-04-16

    申请号:US09438713

    申请日:1999-11-11

    IPC分类号: B64G110

    摘要: An acoustic vibration isolator for use in preventing damage to a payload connected to a launch vehicle by removing the air around the payload so that acoustic vibrations do not have a medium to travel through to reach the payload.

    摘要翻译: 一种声学隔振器,用于通过去除有效载荷周围的空气来防止对连接到运载火箭的有效载荷造成的损坏,使得声振动不具有传播到达有效载荷的介质。

    Method and system for decoupling structural modes to provide consistent control system performance
    4.
    发明授权
    Method and system for decoupling structural modes to provide consistent control system performance 有权
    解耦结构模式的方法和系统,以提供一致的控制系统性能

    公开(公告)号:US07093806B2

    公开(公告)日:2006-08-22

    申请号:US10851975

    申请日:2004-05-20

    IPC分类号: F16M1/00

    摘要: A method and system for calculating a control function for a structural system (10) that can be used to determine an appropriate control force to apply to an active member (18) within a stationary member (12) on the structural system (10). An active member (18) and a stationary member (12) are defined as a two-mass system in which the active member (18) and the stationary member (12) move in opposite directions. The stationary member (12) is mounted to an isolation subsystem (14) that is composed of six isolators (28) at multiple degrees of freedom. The isolation subsystem (14) is softer than the stationary member (12), active member (18) and a spacecraft surface (16) due to a damping element (32) of the isolation subsystem (16). The isolation subsystem (16) is mounted to the spacecraft (16) and decouples the spacecraft (16) from the stationary member (12) and thus the active member (18). An accurate control force for the active member (18) can be determined based upon the above structure (10).

    摘要翻译: 一种用于计算结构系统(10)的控制功能的方法和系统,所述结构系统(10)可用于确定施加到所述结构系统(10)上的固定构件(12)内的有效构件(18)的适当控制力。 活动构件(18)和固定构件(12)被定义为活动构件(18)和固定构件(12)沿相反方向移动的双质量系统。 固定构件(12)安装到由多个自由度的六个隔离器(28)组成的隔离子系统(14)。 隔离子系统(14)由于隔离子系统(16)的阻尼元件(32)而比固定构件(12),有源构件(18)和航天器表面(16)软。 隔离子系统(16)被安装到航天器(16)并且将航天器(16)与固定构件(12)和所述有源构件(18)分离。 可以基于上述结构(10)来确定活动构件(18)的精确控制力。

    Rotary shear damper
    5.
    发明授权
    Rotary shear damper 有权
    旋转剪切阻尼器

    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。

    Constant volume damper
    6.
    发明授权
    Constant volume damper 失效
    恒量阻尼器

    公开(公告)号:US06390254B1

    公开(公告)日:2002-05-21

    申请号:US08889924

    申请日:1997-07-10

    IPC分类号: F16F949

    摘要: A constant volume damper which has a very constant damping constant over a considerable range of frequencies by including check valves that prevent cavitation as a piston moves in a chamber. The damper is also sealed for use in space application and is temperature compensated.

    摘要翻译: 一种恒定体积阻尼器,其在相当大的频率范围内具有非常恒定的阻尼常数,包括当活塞在腔室中移动时防止空化的止回阀。 阻尼器也被密封用于空间应用,并进行温度补偿。

    Magnetically destiffened viscous fluid damper
    7.
    发明授权
    Magnetically destiffened viscous fluid damper 失效
    磁性去粘粘流体阻尼器

    公开(公告)号:US6129185A

    公开(公告)日:2000-10-10

    申请号:US678

    申请日:1997-12-30

    IPC分类号: F16F6/00 F16F9/10 F16F9/53

    摘要: Disclosed is a vibration damping and isolation apparatus having a passive damping mechanism. The passive damping mechanism includes a piston and first and second elements of magnetic material with a shaft extending therebetween. The piston and shaft are linearly movable relative to one another upon application of forces to the damping apparatus. The shaft is spaced from an axial bore of the piston by a restrictive fluid flow annulus that is filled with a viscous fluid. A resilient seal mechanism, having a static stiffness, couples the first and second elements to the piston to define first and second viscous fluid filled chambers in fluid communication with the annulus. Shearing of the fluid as it is displaced through the annulus dissipates the forces. A magnetic mechanism generates magnetic forces that act on the first and second elements to destiffen the static stiffness of the resilient seal mechanism to improve vibration damping and isolation at low frequencies.

    摘要翻译: 公开了一种具有被动阻尼机构的减振隔离装置。 被动阻尼机构包括活塞和磁性材料的第一和第二元件,其间延伸有轴。 活塞和轴在向阻尼装置施加力时可相对于彼此线性移动。 轴与活塞的轴向孔隔开一个填充有粘性流体的限制性流体流动环。 具有静态刚度的弹性密封机构将第一和第二元件联接到活塞以限定与环空间流体连通的第一和第二粘性流体填充室。 当流体通过环带移动时,流体的剪切消除了力。 磁力机构产生作用于第一和第二元件的磁力,以降低弹性密封机构的静刚度,以改善低频下的振动阻尼和隔离。

    Pneumatic tuned mass damper
    9.
    发明授权
    Pneumatic tuned mass damper 失效
    气动调谐质量阻尼器

    公开(公告)号:US5816373A

    公开(公告)日:1998-10-06

    申请号:US822970

    申请日:1997-03-21

    IPC分类号: F16F7/10 F16F7/00 B60G13/16

    CPC分类号: F16F7/1017

    摘要: A tuned mass damper incorporating a container with an inside surface, two end portions and a mass mounted for oscillation between the end portions by a pair of bias springs, the two end portions being filled with a compressible gas to reduce the effects of temperature variations on the damping characteristics, to increase the damping with increased amplitude of oscillation of the mass and to minimize size and weight of the damper, the mass being supported for oscillation by using a plurality of grooves at each end of the mass with a single ball in each groove to provide frictionless and self centering motion of the mass.

    摘要翻译: 调节质量阻尼器包括具有内表面的容器,两个端部和通过一对偏置弹簧在端部之间振荡的质量,两个端部填充有可压缩气体,以减少温度变化的影响 阻尼特性,以增加质量振动幅度增加的阻尼,并使减震器的尺寸和重量最小化,质量通过在质量的每个端部使用多个槽来支撑振荡,每个槽在每一个中具有单个球 凹槽,以提供质量的无摩擦和自定心运动。

    Bi-stable magnetic latch assembly
    10.
    发明授权
    Bi-stable magnetic latch assembly 有权
    双稳磁锁组件

    公开(公告)号:US07468646B2

    公开(公告)日:2008-12-23

    申请号:US11448382

    申请日:2006-06-06

    IPC分类号: H01H9/00

    摘要: A bi-stable magnetic switch assembly is provided that comprises a stator and a rotor, which is configured for rotation with respect to the stator between a first latched position and a second latched position. The stator and the rotor cooperate to form a first magnetic path and a magnetic path having a shared portion. A spring, which is coupled to the rotor, biases the rotor toward the first and second latched positions when the rotor is in the second and first latched positions, respectively. At least one magnet is fixedly coupled to either the stator or the rotor. The magnet is included within the first magnetic path and configured to produce a magnetic latching force that biases the rotor toward first latched position when the rotor is closer to the first latched position than to the second latched position, and toward the second latched position when the rotor is closer to the second latched position than to the first latched position. At least one coil is fixedly coupled to either the stator or the rotor and, when energized, alters the flux in the second magnetic path to reduce the magnetic latching force.

    摘要翻译: 提供了一种双稳态磁开关组件,其包括定子和转子,其被配置为相对于定子在第一锁定位置和第二锁定位置之间旋转。 定子和转子协作形成具有共享部分的第一磁路和磁路。 当转子处于第二和第一锁定位置时,联接到转子的弹簧分别将转子朝向第一和第二锁定位置偏压。 至少一个磁体固定地联接到定子或转子上。 所述磁体包括在所述第一磁路内,并被配置为产生磁力锁定力,当所述转子比所述第二锁定位置更靠近所述第一锁定位置时,所述磁性锁定力将所述转子朝向所述第一锁定位置偏压,并且当所述转子位于所述第一锁定位置时, 转子比第一锁定位置更靠近第二锁定位置。 至少一个线圈固定地耦合到定子或转子上,并且当被激励时,改变第二磁路中的磁通以减小磁性锁定力。