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73 条记录 (耗时 0.063 秒)

    Smart spacecraft structures based on laser metrology
    44.
    发明授权
    Smart spacecraft structures based on laser metrology 有权
    基于激光测量的智能航天器结构

    公开(公告)号：US07242483B2

    公开(公告)日：2007-07-10

    申请号：US10917924

    申请日：2004-08-12

    申请人： Ketao Liu ,  Cameron Massey ,  William Barvosa-Carter ,  Michael Nolan

    发明人： Ketao Liu ,  Cameron Massey ,  William Barvosa-Carter ,  Michael Nolan

    IPC分类号： G01B11/24

    CPC分类号： G01B11/16

    摘要： A laser metrology system for estimating the deformation of a structure is provided. The system includes a plurality of laser beam position detectors distributed across a surface of the structure. Each laser beam position detector is intersected by a laser beam and is configured to determine the change in location of the intersection point in at least one dimension. By determining the change in location of the intersection point for each laser beam position detector, the laser metrology system can calculate the deformation of the structure that caused these changes in location.

    摘要翻译： 提供了一种用于估计结构变形的激光测量系统。 该系统包括分布在结构的表面上的多个激光束位置检测器。 每个激光束位置检测器被激光束相交，并且被配置为确定交点在至少一个维度上的位置的变化。 通过确定每个激光束位置检测器的交点位置的变化，激光测量系统可以计算导致这些位置变化的结构的变形。

    Airflow control devices based on active materials
    45.
    发明申请
    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：US20050230546A1

    公开(公告)日：2005-10-20

    申请号：US11086469

    申请日：2004-11-05

    申请人： Geoffrey Mc Knight ,  Cameron Massey ,  Guillermo Herrera ,  William Barvosa-Carter ,  Nancy Johnson ,  Alan Browne

    发明人： Geoffrey Mc Knight ,  Cameron Massey ,  Guillermo Herrera ,  William Barvosa-Carter ,  Nancy Johnson ,  Alan Browne

    IPC分类号： B60H1/00 ,  B62D35/00 ,  B64C1/00 ,  B64C3/00 ,  B64C5/00 ,  B64C23/00 ,  E05F15/20 ,  F15D1/10

    CPC分类号： B60K11/085 ,  B60H2001/00092 ,  B62D35/00 ,  B64C23/00 ,  B64C2027/7288 ,  F15D1/10 ,  Y02T10/88 ,  Y02T50/34

    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。

    Power-off hold element
    48.
    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

    申请人： William Barvosa-Carter ,  Cameron Massey

    发明人： William Barvosa-Carter ,  Cameron Massey

    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。

    Energy absorbing assembly utilizing reversibly expandable mechanical structures for impact management and methods for operating the same
    50.
    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

    申请人： William Barvosa-Carter ,  Nancy Johnson ,  Alan Browne ,  Geoffrey Mc Knight ,  Cameron Massey

    发明人： William Barvosa-Carter ,  Nancy Johnson ,  Alan Browne ,  Geoffrey Mc Knight ,  Cameron Massey

    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。