Power-off hold element
    1.
    发明授权
    Power-off hold element 失效
    断电保持元件

    公开(公告)号:US07305824B1

    公开(公告)日:2007-12-11

    申请号:US10913234

    申请日:2004-08-06

    IPC分类号: F01B29/10

    CPC分类号: F16B1/0014

    摘要: A power-off hold element for operating in cooperation with an actuator is disclosed. The power-off hold element comprises a material having selectively adjustable rigidity wherein a position or shape of said material is adjustable when energy is applied to increase the temperature of the material above a temperature where the material becomes flexible and the material is rigid in a position or shape when the temperature of the material decreases below the temperature where the material becomes flexible. Also disclosed is a process for operating a power-off hold element for operating in cooperation with an actuator.

    摘要翻译: 公开了一种用于与致动器配合操作的断电保持元件。 断电保持元件包括具有选择性可调节刚度的材料,其中当施加能量时所述材料的位置或形状是可调节的,以将材料的温度升高到材料变得柔性的温度以上,并且该材料在刚好的位置 或当材料的温度降低到低于材料变柔性的温度时的形状。 还公开了一种用于操作与致动器协作操作的断电保持元件的过程。

    Layered inorganic with pillared organic nanocomposite actuators
    2.
    发明授权
    Layered inorganic with pillared organic nanocomposite actuators 有权
    层状无机与柱状有机纳米复合致动器

    公开(公告)号:US07274128B1

    公开(公告)日:2007-09-25

    申请号:US11038905

    申请日:2005-01-20

    IPC分类号: H02N11/00

    CPC分类号: F03G7/05 Y02E10/34

    摘要: One nanostructured actuator embodiment includes an actuation region between electrical contacts. The actuation region includes an elastic matrix with embedded nanocomposite layered structures, which have inorganic material layers with pillared organic material structures between the inorganic material layers responsive to the surface acidity of the inorganic material layers. The elastic matrix allows transport of species for changing the surface acidity. A separator region is between the electrical contacts. A proton generation region capable of reversible electrochemical production and elimination of protons is provided, which may be a hydrogen storage material located on a side of the separator region opposite the actuation region, which may include metal hydride, or metal hydroxide. Alternatively, it may include an electrolytic solution and conductive particles within the elastic matrix for in situ electrochemical generation of an acid/base. The conductive particles may include carbon nanotubes, metal fibers, and/or metal nanoparticles. The nanocomposite structures may be generally aligned with a direction of work in the elastic matrix.

    摘要翻译: 一个纳米结构致动器实施例包括电触头之间的致动区域。 致动区域包括具有嵌入式纳米复合层状结构的弹性基体,其具有响应于无机材料层的表面酸度的无机材料层之间具有柱状有机材料结构的无机材料层。 弹性基质允许物质的运输改变表面酸度。 分离器区域在电触点之间。 提供了能够进行可逆电化学生成和质子消除的质子产生区域,其可以是位于与致动区域相对的分隔器区域侧的储氢材料,其可以包括金属氢化物或金属氢氧化物。 或者,其可以包括在弹性基质内的电解溶液和导电颗粒,用于原位电化学生成酸/碱。 导电颗粒可以包括碳纳米管,金属纤维和/或金属纳米颗粒。 纳米复合结构可以大体上与弹性基质中的工作方向对齐。

    Metrology system and method for measuring five degrees-of-freedom for a point target
    4.
    发明授权
    Metrology system and method for measuring five degrees-of-freedom for a point target 有权
    用于测量点目标的五自由度的计量系统和方法

    公开(公告)号:US07130034B2

    公开(公告)日:2006-10-31

    申请号:US10833199

    申请日:2004-04-26

    IPC分类号: G01B11/26 G01C1/00

    CPC分类号: G01C15/002

    摘要: A metrology system includes a laser, a position sensitive detector array, a first collimator, a second collimator, and a mirror. The position sensitive detector array and the first collimator are positioned at a reference point. The second collimator and the mirror are positioned at a point target at a distance from the reference point. A laser beam is alternately provided to the first collimator and the second collimator by optical fiber. The position sensitive detector array measures position data from a first laser crosshair generated by the first collimator and from a second laser crosshair generated by the second collimator. By alternating the activation of the first collimator and the second collimator it is possible to measure 5 degrees-of-freedom for the point target. A metrology system processing unit provides analog data processing. The metrology system that is suitable for, but not limited to, facilitating active compensation of large spacecraft structures.

    摘要翻译: 计量系统包括激光器,位置敏感检测器阵列,第一准直仪,第二准直仪和反射镜。 位置敏感检测器阵列和第一准直器位于参考点。 第二准直器和反射镜位于与参考点一定距离的点目标处。 通过光纤将激光束交替地提供给第一准直仪和第二准直仪。 位置敏感检测器阵列测量由第一准直仪产生的第一激光十字线和由第二准直仪产生的第二激光十字准线的位置数据。 通过交替激活第一准直仪和第二准直仪,可以测量点目标的5度自由度。 计量系统处理单元提供模拟数据处理。 适用于但不限于促进大型航天器结构的主动补偿的计量系统。

    Airflow control devices based on active materials

    公开(公告)号:US07118652B2

    公开(公告)日:2006-10-10

    申请号:US10983329

    申请日:2004-11-05

    IPC分类号: B60J1/00

    摘要: An airflow control device comprises a body and an active material in operative communication with the body. The active material, such as shape memory material, is operative to change at least one attribute in response to an activation signal. The active material can change its shape, dimensions and/or stiffness producing a change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness to control vehicle airflow to better suit changes in driving conditions such as weather, ground clearance and speed, while reducing maintenance and the level of failure modes. As such, the device reduces vehicle damage due to inadequate ground clearance, while increasing vehicle stability and fuel economy. An activation device, controller and sensors may be employed to further control the change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness of the device. A method for controlling vehicle airflow selectively introduces an activation signal to initiate a change of at least one feature of the device that can be reversed upon discontinuation of the activation signal.

    Energy absorbing assembly utilizing reversibly expandable mechanical structures for impact management and methods for operating the same
    6.
    发明申请
    Energy absorbing assembly utilizing reversibly expandable mechanical structures for impact management and methods for operating the same 有权
    能量吸收组件利用可逆扩展的机械结构进行冲击管理及其操作方法

    公开(公告)号:US20060033362A1

    公开(公告)日:2006-02-16

    申请号:US10918740

    申请日:2004-08-13

    IPC分类号: B60R21/02

    CPC分类号: B60R21/04

    摘要: Reversibly deployable energy absorbing assemblies for impact management generally include a translatable first element, a rigid support structure and a second element having one end fixedly attached to the rigid support structure and an other end fixedly attached to the translatable first element. The second elements are adapted to plastically deform along a predefined buckling path. The predefined buckling path may be uni-modal or multi-modal depending on the desired application and/or impact conditions. Also disclosed herein are methods for operating the energy absorbing assemblies.

    摘要翻译: 用于冲击管理的可逆展开的能量吸收组件通常包括可平移的第一元件,刚性支撑结构和具有固定地连接到刚性支撑结构的一端的第二元件和固定地连接到可平移第一元件的另一端。 第二元件适于沿预定的弯曲路径塑性变形。 取决于所需的应用和/或冲击条件,预定的弯曲路径可以是单模式或多模式的。 本文还公开了用于操作能量吸收组件的方法。

    Airflow control devices based on active materials
    9.
    发明授权
    Airflow control devices based on active materials 有权
    基于活性物质的气流控制装置

    公开(公告)号:US07703839B2

    公开(公告)日:2010-04-27

    申请号:US11086470

    申请日:2004-11-05

    IPC分类号: B62D35/00

    摘要: An airflow control device comprises a body and an active material in operative communication with the body. The active material, such as shape memory material, is operative to change at least one attribute in response to an activation signal. The active material can change its shape, dimensions and/or stiffness producing a change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness to control vehicle airflow to better suit changes in driving conditions such as weather, ground clearance and speed, while reducing maintenance and the level of failure modes. As such, the device reduces vehicle damage due to inadequate ground clearance, while increasing vehicle stability and fuel economy. An activation device, controller and sensors may be employed to further control the change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness of the device. A method for controlling vehicle airflow selectively introduces an activation signal to initiate a change of at least one feature of the device that can be reversed upon discontinuation of the activation signal.

    摘要翻译: 气流控制装置包括与主体可操作地连通的主体和活动材料。 诸如形状记忆材料的活性材料可操作以响应于激活信号改变至少一个属性。 活性材料可以改变其形状,尺寸和/或刚度,从而产生气流控制装置的至少一个特征的变化,例如形状,尺寸,位置,取向和/或刚度,以控制车辆气流,以更好地适应驾驶中的变化 条件如天气,离地间隙和速度,同时减少维护和故障模式的水平。 因此,该装置由于不足的离地间隙而减少车辆损坏,同时提高车辆稳定性和燃料经济性。 可以使用激活装置,控制器和传感器来进一步控制气流控制装置的至少一个特征的变化,例如装置的形状,尺寸,位置,取向和/或刚度。 用于控制车辆气流的方法选择性地引入激活信号以启动在停止激活信号时可以反转的装置的至少一个特征的改变。

    AIRFLOW CONTROL DEVICES BASED ON ACTIVE MATERIALS
    10.
    发明申请
    AIRFLOW CONTROL DEVICES BASED ON ACTIVE MATERIALS 有权
    基于活性材料的气流控制装置

    公开(公告)号:US20080272615A1

    公开(公告)日:2008-11-06

    申请号:US12174035

    申请日:2008-07-16

    IPC分类号: B62D37/02

    摘要: An airflow control device comprises a body and an active material in operative communication with the body. The active material, such as shape memory material, is operative to change at least one attribute in response to an activation signal. The active material can change its shape, dimensions and/or stiffness producing a change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness to control vehicle airflow to better suit changes in driving conditions such as weather, ground clearance and speed, while reducing maintenance and the level of failure modes. As such, the device reduces vehicle damage due to inadequate ground clearance, while increasing vehicle stability and fuel economy. An activation device, controller and sensors may be employed to further control the change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness of the device. A method for controlling vehicle airflow selectively introduces an activation signal to initiate a change of at least one feature of the device that can be reversed upon discontinuation of the activation signal.

    摘要翻译: 气流控制装置包括与主体可操作地连通的主体和活动材料。 诸如形状记忆材料的活性材料可操作以响应于激活信号改变至少一个属性。 活性材料可以改变其形状,尺寸和/或刚度,从而产生气流控制装置的至少一个特征的变化,例如形状,尺寸,位置,取向和/或刚度,以控制车辆气流,以更好地适应驾驶中的变化 条件如天气,离地间隙和速度,同时减少维护和故障模式的水平。 因此,该装置由于不足的离地间隙而减少车辆损坏,同时提高车辆稳定性和燃料经济性。 可以使用激活装置,控制器和传感器来进一步控制气流控制装置的至少一个特征的变化,例如装置的形状,尺寸,位置,取向和/或刚度。 用于控制车辆气流的方法选择性地引入激活信号以启动在停止激活信号时可以反转的装置的至少一个特征的改变。