Friction damping mechanism for damped beams and other structures
    1.
    发明授权
    Friction damping mechanism for damped beams and other structures 有权
    阻尼梁和其他结构的摩擦阻尼机构

    公开(公告)号:US09145702B2

    公开(公告)日:2015-09-29

    申请号:US13760665

    申请日:2013-02-06

    申请人: Raytheon Company

    摘要: A system includes a structure configured to undergo oscillatory movement. The system also includes a friction damping clamp coupled to the structure. The friction damping clamp includes a housing having a groove. The friction damping clamp also includes a roller positioned at least partially within the groove, where the groove has first and second ramps. The roller is configured to move up each ramp of the groove so that more compression is applied on the structure and to move down each ramp of the groove so that less compression is applied on the structure. The roller may be configured to apply more compression on the structure to increase friction between portions of the structure, to apply less compression on the structure to decrease friction between the portions of the structure, and to apply substantially no compression on the structure when the roller is located at a center of the groove.

    摘要翻译: 系统包括被配置为进行振荡运动的结构。 该系统还包括耦合到结构的摩擦阻尼夹具。 摩擦阻尼夹具包括具有凹槽的壳体。 摩擦阻尼夹具还包括至少部分地位于槽内的辊,其中槽具有第一和第二斜面。 辊被配置为向上移动槽的每个斜面,使得更多的压缩被施加在结构上并且向下移动槽的每个斜面,使得较少的压缩施加在结构上。 辊可以被配置为对结构施加更多的压缩以增加结构的部分之间的摩擦力,以减少结构上的压缩以减小结构部分之间的摩擦,并且当辊子基本上不施加压缩在结构上 位于凹槽的中心。

    SHAPE-MEMORY POLYMER WITH INTEGRAL RESISTIVE HEATING ELEMENT
    2.
    发明申请
    SHAPE-MEMORY POLYMER WITH INTEGRAL RESISTIVE HEATING ELEMENT 审中-公开
    具有整体电阻加热元件的形状记忆聚合物

    公开(公告)号:US20150119479A1

    公开(公告)日:2015-04-30

    申请号:US14066647

    申请日:2013-10-29

    申请人: Raytheon Company

    摘要: A method of making a reconfigurable three-dimensional shape includes the following steps: (i) moving multiple print heads in three dimensions relative to a printing surface, where the print heads include a conductor print head and a polymer print head; (ii) depositing a conductive material from the conductor print head; and (iii) depositing a shape-memory polymer from the polymer print head. The depositing steps form a volumetric shape of a shape-memory polymer, capable of changing shape, with a conductive material capable of acting as a heating element integrally formed in the volumetric shape. The method can further include the steps of heating the shape-memory polymer above a transition temperature, changing the shape of the volumetric shape following the heating step, and then allowing the shape-memory polymer to cool below the transition temperature to fix the new volumetric shape.

    摘要翻译: 制造可重构三维形状的方法包括以下步骤:(i)相对于打印表面三维地移动多个打印头,其中打印头包括导体打印头和聚合物打印头; (ii)从导体印刷头沉积导电材料; 和(iii)从聚合物打印头沉积形状记忆聚合物。 沉积步骤形成能够改变形状的形状记忆聚合物的体积形状,其中导电材料能够用作体积形状一体形成的加热元件。 该方法还可以包括以下步骤:将形状记忆聚合物加热到转变温度之上,改变加热步骤之后的体积形状的形状,然后使形状记忆聚合物冷却到低于转变温度以固定新体积 形状。

    SHAPE MEMORY ALLOY MICRO-AERO CONTROL SURFACES
    3.
    发明申请
    SHAPE MEMORY ALLOY MICRO-AERO CONTROL SURFACES 有权
    形状记忆合金MICRO-AERO控制表面

    公开(公告)号:US20150108268A1

    公开(公告)日:2015-04-23

    申请号:US14057876

    申请日:2013-10-18

    申请人: Raytheon Company

    IPC分类号: F42B10/64

    CPC分类号: F42B10/64 B64C9/36 F42B10/62

    摘要: A control system for a missile includes a plurality of control surfaces that can be arrayed across a surface of the missile body, and a controller connected to the control surfaces to selectively move the control surfaces between an aerodynamic stowed position where the control surfaces conform to the surface of the body, and a deployed control position removed from the aerodynamic stowed position where the control surfaces extend from the surface of the body to interact with airflow over the body. The control surfaces are made of a material that includes a shape-memory alloy. Heating the control surfaces causes the shape-memory alloy to move the control surfaces from the aerodynamic stowed position to the deployed control position. By selectively extending and retracting the control surfaces, the control system provides the ability to control the missile's direction of travel or to reduce roll about a longitudinal axis of the body.

    摘要翻译: 用于导弹的控制系统包括可以排列在导弹体的表面上的多个控制表面,以及连接到控制表面的控制器,以选择性地将控制表面移动到空气动力学存放位置,其中控制表面符合 身体的表面和从空气动力学收起位置移除的展开的控制位置,其中控制表面从身体的表面延伸以与身体上的气流相互作用。 控制表面由包括形状记忆合金的材料制成。 加热控制表面使得形状记忆合金将控制表面从空气动力学存放位置移动到展开的控制位置。 通过选择性地延伸和缩回控制表面,控制系统提供控制导弹的行进方向或减少围绕身体纵轴的滚动的能力。

    ROBOTIC GRABBER AND METHOD OF USE
    4.
    发明申请
    ROBOTIC GRABBER AND METHOD OF USE 有权
    机器人格和使用方法

    公开(公告)号:US20140306473A1

    公开(公告)日:2014-10-16

    申请号:US13863634

    申请日:2013-04-16

    申请人: RAYTHEON COMPANY

    IPC分类号: F03G7/06 B25J15/12

    摘要: A robotic finger includes a shape-memory alloy and a shape-memory polymer connected to and adjacent to the shape-memory alloy. Heating the shape-memory polymer causes it to soften, heating the shape-memory alloy causes the alloy to bend in the direction of the shape-memory polymer to press the shape-memory polymer against an object to be grasped, and cooling the shape-memory polymer causes it to stiffen and to retain its shape. An opposing member is positioned to cooperate with the finger to grasp an object positioned between the finger and the opposing member. A selectively controllable heat source is capable of applying heat to the finger.

    摘要翻译: 机器人手指包括形状记忆合金和连接到形状记忆合金的形状记忆合成物。 加热形状记忆聚合物使其软化,加热形状记忆合金导致合金在形状记忆聚合物的方向上弯曲以将形状记忆聚合物压靠待被抓握的物体, 记忆聚合物使其变硬并保持其形状。 相对的构件定位成与手指配合以抓住位于手指和相对构件之间的物体。 选择性控制的热源能够对手指施加热量。

    Shape memory alloy micro-aero control surfaces

    公开(公告)号:US09879959B2

    公开(公告)日:2018-01-30

    申请号:US14057876

    申请日:2013-10-18

    申请人: Raytheon Company

    CPC分类号: F42B10/64 B64C9/36 F42B10/62

    摘要: A control system for a missile includes a plurality of control surfaces that can be arrayed across a surface of the missile body, and a controller connected to the control surfaces to selectively move the control surfaces between an aerodynamic stowed position where the control surfaces conform to the surface of the body, and a deployed control position removed from the aerodynamic stowed position where the control surfaces extend from the surface of the body to interact with airflow over the body. The control surfaces are made of a material that includes a shape-memory alloy. Heating the control surfaces causes the shape-memory alloy to move the control surfaces from the aerodynamic stowed position to the deployed control position. By selectively extending and retracting the control surfaces, the control system provides the ability to control the missile's direction of travel or to reduce roll about a longitudinal axis of the body.

    Robotic grabber and method of use
    8.
    发明授权
    Robotic grabber and method of use 有权
    机器人抓取器和使用方法

    公开(公告)号:US08950795B2

    公开(公告)日:2015-02-10

    申请号:US13863634

    申请日:2013-04-16

    申请人: Raytheon Company

    摘要: A robotic finger includes a shape-memory alloy and a shape-memory polymer connected to and adjacent to the shape-memory alloy. Heating the shape-memory polymer causes it to soften, heating the shape-memory alloy causes the alloy to bend in the direction of the shape-memory polymer to press the shape-memory polymer against an object to be grasped, and cooling the shape-memory polymer causes it to stiffen and to retain its shape. An opposing member is positioned to cooperate with the finger to grasp an object positioned between the finger and the opposing member. A selectively controllable heat source is capable of applying heat to the finger.

    摘要翻译: 机器人手指包括形状记忆合金和形状记忆合成物,该形状记忆合金与形状记忆合金连接并邻近形状记忆合金。 加热形状记忆聚合物使其软化,加热形状记忆合金导致合金在形状记忆聚合物的方向上弯曲以将形状记忆聚合物压靠待被抓握的物体, 记忆聚合物使其变硬并保持其形状。 相对的构件定位成与手指配合以抓住位于手指和相对构件之间的物体。 选择性控制的热源能够对手指施加热量。

    FRICTION DAMPING MECHANISM FOR DAMPED BEAMS AND OTHER STRUCTURES
    9.
    发明申请
    FRICTION DAMPING MECHANISM FOR DAMPED BEAMS AND OTHER STRUCTURES 有权
    阻尼梁和其他结构的摩擦阻尼机构

    公开(公告)号:US20140215936A1

    公开(公告)日:2014-08-07

    申请号:US13760665

    申请日:2013-02-06

    申请人: RAYTHEON COMPANY

    IPC分类号: E04H9/02 E04B1/98

    摘要: A system includes a structure configured to undergo oscillatory movement. The system also includes a friction damping clamp coupled to the structure. The friction damping clamp includes a housing having a groove. The friction damping clamp also includes a roller positioned at least partially within the groove, where the groove has first and second ramps. The roller is configured to move up each ramp of the groove so that more compression is applied on the structure and to move down each ramp of the groove so that less compression is applied on the structure. The roller may be configured to apply more compression on the structure to increase friction between portions of the structure, to apply less compression on the structure to decrease friction between the portions of the structure, and to apply substantially no compression on the structure when the roller is located at a center of the groove.

    摘要翻译: 系统包括被配置为进行振荡运动的结构。 该系统还包括耦合到结构的摩擦阻尼夹具。 摩擦阻尼夹具包括具有凹槽的壳体。 摩擦阻尼夹具还包括至少部分地位于槽内的辊,其中槽具有第一和第二斜面。 辊被配置为向上移动槽的每个斜面,使得更多的压缩被施加在结构上并且向下移动槽的每个斜面,使得较少的压缩施加在结构上。 辊可以被配置为对结构施加更多的压缩以增加结构的部分之间的摩擦力,以减少结构上的压缩以减小结构部分之间的摩擦,并且当辊子基本上不施加压缩在结构上 位于凹槽的中心。

    CHORD-EXPANDING AIR VEHICLE WINGS
    10.
    发明申请
    CHORD-EXPANDING AIR VEHICLE WINGS 有权
    扩展空中的车翼

    公开(公告)号:US20130200208A1

    公开(公告)日:2013-08-08

    申请号:US13660209

    申请日:2012-10-25

    申请人: Raytheon Company

    IPC分类号: B64C3/56

    CPC分类号: B64C3/56 F42B10/14

    摘要: An air vehicle wing includes foldable ribs coupled to a leading-edge spar. The ribs each have multiple rib segments which are foldable (hinged) relative to each other. Extension linkages, each with multiple extension linkage segments, pass through openings in the rib segments, and may be coupled to the rib segments with pin couplings, able to change relative angle between the individual rib segments and the extension linkage segments to which they are coupled. A skin may cover the ribs, to provide an outer surface of the wing that may be unfolded as the wing is expanded from a stowed, small-chord condition, to a deployed, large-chord condition.

    摘要翻译: 机动车翼包括连接到前缘翼梁的可折叠肋。 肋条各自具有相对于彼此可折叠(铰接)的多个肋段。 每个具有多个延伸链节段的延伸连接件穿过肋部段中的开口,并且可以通过销联接件联接到肋部分,能够改变各个肋部分与它们相连的延伸连接部分之间的相对角度 。 皮肤可以覆盖肋,以提供机翼的外表面,当机翼从收起的小弦条件扩展到展开的大和弦状态时,可以展开。