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    Hingeless, large-throw negative stiffness structure
    5.
    发明授权
    Hingeless, large-throw negative stiffness structure 有权

    公开(公告)号：US09897161B2

    公开(公告)日：2018-02-20

    申请号：US14565334

    申请日：2014-12-09

    Applicant: HRL Laboratories, LLC

    Inventor： Christopher B. Churchill ,  David W. Shahan ,  Geoffrey P. McKnight ,  Guillermo A. Herrera

    IPC: F16F15/073 ,  F16F1/22 ,  F16F3/02

    CPC classification number: F16F15/073 ,  F16F3/02 ,  F16F2228/063

    Abstract: A negative stiffness structure for vibration isolation, shock mitigation, and/or signal processing includes a flexible tensile member and a curved compressive member. A first end of the tensile member is attached to a first structure. A first end of the curved compressive member is coupled to a first structure and a second end of the curved compressive member is coupled to a second end of the flexible tensile member. A length of the tensile member is greater than a length of the compressive member. A tip of the negative stiffness structure is configured to exhibit a negative stiffness mechanical response to a load applied to the tip. The negative stiffness mechanical response acts in a direction orthogonal to the length of the tensile member.

    HINGELESS, LARGE-THROW NEGATIVE STIFFNESS STRUCTURE
    6.
    发明申请
    HINGELESS, LARGE-THROW NEGATIVE STIFFNESS STRUCTURE 有权
    无缝，大风险的负面结构

    公开(公告)号：US20160348752A1

    公开(公告)日：2016-12-01

    申请号：US14565334

    申请日：2014-12-09

    Applicant: HRL Laboratories, LLC

    Inventor： Christopher B. Churchill ,  David W. Shahan ,  Geoffrey P. McKnight ,  Guillermo A. Herrera

    IPC: F16F15/073 ,  F16F1/22

    CPC classification number: F16F15/073 ,  F16F3/02 ,  F16F2228/063

    Abstract: A negative stiffness structure for vibration isolation, shock mitigation, and/or signal processing includes a flexible tensile member and a curved compressive member. A first end of the tensile member is attached to a first structure. A first end of the curved compressive member is coupled to a first structure and a second end of the curved compressive member is coupled to a second end of the flexible tensile member. A length of the tensile member is greater than a length of the compressive member. A tip of the negative stiffness structure is configured to exhibit a negative stiffness mechanical response to a load applied to the tip. The negative stiffness mechanical response acts in a direction orthogonal to the length of the tensile member.

    Abstract translation: 用于隔振，减震和/或信号处理的负刚度结构包括柔性承受构件和弯曲压缩构件。 拉伸构件的第一端附接到第一结构。 弯曲的压缩构件的第一端联接到第一结构，并且弯曲的压缩构件的第二端联接到柔性抗张构件的第二端。 拉伸构件的长度大于压缩构件的长度。 负刚度结构的尖端构造成对施加到尖端的负载呈现负刚度机械响应。 负刚度机械响应在与拉伸构件的长度正交的方向上作用。

    Multi-degree of freedom vibration isolator
    8.
    发明授权
    Multi-degree of freedom vibration isolator 有权

    公开(公告)号：US11187047B1

    公开(公告)日：2021-11-30

    申请号：US16004854

    申请日：2018-06-11

    Applicant: HRL LABORATORIES, LLC

    Inventor： David W. Shahan ,  Sloan P. Smith ,  Adam E. Sorensen ,  Casey J. Sennott ,  Christopher P. Henry ,  Geoffrey P. McKnight

    IPC: F16F13/10 ,  E21B17/07 ,  F16F7/00 ,  E21B47/017

    Abstract: A multi-axis isolator configured to isolate a payload from unwanted vibrations and shocks includes a housing, at least one pair of radial isolators in the housing, and an axial isolator in the housing. Each radial isolator includes an elastomer dome, a chamber at least partially defined by the elastomer dome, and a fluid in the chamber. The multi-axis isolator also includes a fluid track placing the chambers of the radial isolators in fluid communication with each other. The axial isolator includes an elastomer dome, a backpressure membrane, a primary chamber, a backpressure chamber, a fluid in the primary and backpressure chambers, a conduit placing the primary chamber in fluid communication with the backpressure chamber. The multi-axis isolator also includes a shaft configured to be connected to the payload. The pair of radial isolators and the axial isolator are coupled to the shaft.

    FLUID AND ELASTOMER VIBRATION ISOLATOR
    9.
    发明申请
    FLUID AND ELASTOMER VIBRATION ISOLATOR 审中-公开

    公开(公告)号：US20180372180A1

    公开(公告)日：2018-12-27

    申请号：US15957202

    申请日：2018-04-19

    Applicant: HRL LABORATORIES, LLC

    Inventor： David W. Shahan ,  Sloan P. Smith ,  Adam E. Sorensen ,  Casey J. Sennott ,  Christopher P. Henry ,  Geoffrey P. McKnight

    IPC: F16F15/027 ,  F16F15/02 ,  F16F13/10 ,  F16F15/00

    Abstract: An isolator configured to isolate a payload from unwanted vibrations and shocks. The isolator includes a housing having a first end and a second end opposite the first end, a primary chamber defined in the housing, a backpressure chamber defined in the housing, a conduit placing the primary chamber in fluid communication with the backpressure chamber, a backpressure membrane in the housing proximate the first end, an elastomer dome in the housing proximate the second end, and a shaft connected to the elastomer dome. The primary chamber and the backpressure chamber are between the backpressure membrane and the elastomer dome. The shaft is configured to be connected to the payload.

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