ACTIVE MATERIALS-BASED COMPLIANT MECHANISMS
    21.
    发明申请
    ACTIVE MATERIALS-BASED COMPLIANT MECHANISMS 有权
    基于活性材料的合格机制

    公开(公告)号:US20100138002A1

    公开(公告)日:2010-06-03

    申请号:US12327316

    申请日:2008-12-03

    IPC分类号: G05B11/01

    摘要: A compliant mechanism includes a body that is configured to generate a mechanical output in response to a mechanical input. The body has at least one region formed by an active material. The compliant mechanism also includes at least one activation device configured to selectively apply an activation signal to the at least one region. The active material is configured to undergo a change in modulus in response to the activation signal such that the output is characterized by a first magnitude or direction when the activation device applies the activation signal and a second magnitude or direction when the activation device does not apply the activation signal.

    摘要翻译: 适应机构包括被配置为响应于机械输入生成机械输出的主体。 主体具有由活性材料形成的至少一个区域。 顺应机构还包括被配置为选择性地将激活信号施加到至少一个区域的至少一个激活装置。 活性材料配置为响应于激活信号而经历模量变化,使得当激活装置施加激活信号时,输出的特征在于第一幅度或方向,以及当激活装置不适用时的第二幅度或方向 激活信号。

    Hybrid coded magnets and SMA positive drive clutch
    28.
    发明授权
    Hybrid coded magnets and SMA positive drive clutch 有权
    混合编码磁体和SMA正驱动离合器

    公开(公告)号:US09334905B2

    公开(公告)日:2016-05-10

    申请号:US13447922

    申请日:2012-04-16

    摘要: A clutch for selective transmission of torque and power, utilizing pairs of coded arrays of permanent magnets affixed respectively to the driving member and the driven member. A shape memory alloy actuator brings to driving member and the driven member into proximity to engage the clutch via a higher-order mutual magnetic correspondence between the coded magnetic regions of the permanent magnet arrays. Also provided is a clutch having a magnetorheological fluid between the driving member and the driven member, to increase the torque and power transfer through the fluid when its viscosity is increased by the magnetic field of the arrays in proximity. Sets of corresponding teeth on the driving member and driven member mesh when the rotation of the members is synchronized, providing positive direct drive to prolong the service life of the fluid.

    摘要翻译: 用于选择性地传递扭矩和动力的离合器,利用分别固定在驱动构件和被驱动构件上的永磁体编码阵列对。 形状记忆合金致动器通过永磁体阵列的编码磁区之间的较高阶的相互对应的对应关系使驱动构件和从动构件接近以接合离合器。 还提供了一种在驱动构件和从动构件之间具有磁流变流体的离合器,当其粘度随着阵列的磁场接近而增加时,增加通过流体的扭矩和功率传递。 当构件的旋转同步时,在驱动构件和从动构件网上设置相应的齿,提供正直接驱动以延长流体的使用寿命。