System for formation of highly nonlinear pulses
    1.
    发明授权
    System for formation of highly nonlinear pulses 有权
    用于形成高度非线性脉冲的系统

    公开(公告)号:US08397549B2

    公开(公告)日:2013-03-19

    申请号:US13434821

    申请日:2012-03-29

    申请人: Chiara Daraio

    发明人: Chiara Daraio

    CPC分类号: C09K3/00 G10K15/00 G10K15/043

    摘要: A system supporting the formation and propagation of tunable highly nonlinear pulses using granular chains composed of non-spherical granular systems. Such a system may be used to support the creation of tunable acoustic band gaps in granular crystals formed of particles with different geometries (spherical or not) in which the tunability is achieved by varying the static precompression, type of excitation and/or pulse amplitude in the system.

    摘要翻译: 使用由非球形颗粒系统构成的颗粒链,支持可调高度非线性脉冲的形成和传播的系统。 这样的系统可以用于支持由具有不同几何形状的颗粒形成的颗粒状晶体中的可调谐声带间隙(球形或非球形),其中可调谐性通过改变静态预压缩,激发类型和/或脉冲振幅来实现 系统。

    BIFURCATION-BASED ACOUSTIC SWITCH AND RECTIFIER
    2.
    发明申请
    BIFURCATION-BASED ACOUSTIC SWITCH AND RECTIFIER 审中-公开
    基于分歧的声学开关和整流器

    公开(公告)号:US20130033339A1

    公开(公告)日:2013-02-07

    申请号:US13552042

    申请日:2012-07-18

    IPC分类号: H03H9/54

    CPC分类号: G10K11/04

    摘要: A tunable frequency acoustic rectifier that is a granular crystal composed of a statically compressed one-dimensional array of particles in contact, containing a light mass defect near a boundary. The tunable frequency acoustic rectifier is nonlinear and contains tunable pass and stop bands in their dispersion relation. Vibrations at selected frequencies applied to the granular crystal from the side near the defect will cause the system to bifurcate at a critical input amplitude and subsequently jump to quasiperiodic and chaotic states with broadband frequency content. Some of this frequency content lies within the pass bands and will propagate through the crystal. Vibrations at the same frequencies applied to the other side of the granular crystal will not bifurcate, and little energy is transmitted.

    摘要翻译: 一种可调谐频率整流器,其是由静态压缩的一维接触颗粒阵列组成的粒状晶体,其包含边界附近的光质缺陷。 可调谐频率整流器是非线性的,并且在其色散关系中包含可调谐的通过和停止带。 在从缺陷附近一侧施加到颗粒状晶体的选定频率处的振动将导致系统在关键输入幅度处分叉,随后跳到具有宽带频率内容的准周期性和混沌状态。 这些频率内容中的一些位于通带内,并将通过晶体传播。 施加到粒状晶体的另一侧的相同频率的振动将不会分叉,并且传递很少的能量。

    Method and system for formation of highly nonlinear pulses
    4.
    发明授权
    Method and system for formation of highly nonlinear pulses 有权
    用于形成高度非线性脉冲的方法和系统

    公开(公告)号:US08191401B2

    公开(公告)日:2012-06-05

    申请号:US12364947

    申请日:2009-02-03

    申请人: Chiara Daraio

    发明人: Chiara Daraio

    CPC分类号: C09K3/00 G10K15/00 G10K15/043

    摘要: A method and system supporting the formation and propagation of tunable highly nonlinear pulses using granular chains composed of non-spherical granular systems. Such a method and system may be used to support the creation of tunable acoustic band gaps in granular crystals formed of particles with different geometries (spherical or not) in which the tunability is achieved by varying the static precompression, type of excitation and/or pulse amplitude in the system.

    摘要翻译: 一种使用由非球形颗粒系统构成的颗粒链支持可调高度非线性脉冲的形成和传播的方法和系统。 这种方法和系统可以用于支持由具有不同几何形状的颗粒(球形或非球形)形成的颗粒状晶体中的可调谐声带间隙的创建,其中通过改变静态预压缩,激发和/或脉冲的类型来实现可调性 幅度在系统中。

    Actuation system
    5.
    发明授权
    Actuation system 有权
    执行系统

    公开(公告)号:US08006539B2

    公开(公告)日:2011-08-30

    申请号:US12364974

    申请日:2009-02-03

    摘要: A method and system for creating highly nonlinear solitary waves for use in performing nondestructive evaluation of structures and materials. The method and system use an apparatus having a spring loaded adjustable striker, a chain of granular particles, and a reloading device that allows for repeated activation of the adjustable striker.

    摘要翻译: 一种用于创建高度非线性孤波的方法和系统,用于对结构和材料进行非破坏性评估。 该方法和系统使用具有弹簧加载的可调节撞击器,粒状颗粒链的装置以及允许反复激活可调节撞击器的重新加载装置。

    Method and apparatus for nondestructive evaluation and monitoring of materials and structures
    6.
    发明授权
    Method and apparatus for nondestructive evaluation and monitoring of materials and structures 有权
    材料和结构的无损评估和监测方法和装置

    公开(公告)号:US08327709B2

    公开(公告)日:2012-12-11

    申请号:US12251164

    申请日:2008-10-14

    IPC分类号: G01N29/06 G01N29/24

    摘要: A method and apparatus for nondestructive evaluation (NDE) of structures and materials using a highly nonlinear medium for the generation and detection of one or multiple highly nonlinear pulses (or highly nonlinear waves) impinging on a material or structure. The apparatus includes pulse exciters that induce the propagation of highly nonlinear, weakly nonlinear or linear stress waves in the material, system, or structure to be inspected and/or detectors for the observation and the detection of the output waves from the material/structure being tested. The NDE method includes the use of the tunable highly nonlinear apparatus as impulse exciter alone, or in combination with an accelerometer or a nonlinear sensor to detect the outgoing pulse.

    摘要翻译: 一种使用高度非线性介质的结构和材料的非破坏性评估(NDE)的方法和装置,用于产生和检测冲击材料或结构的一个或多个非线性脉冲(或高度非线性波)。 该装置包括脉冲激励器,其诱导要检查的材料,系统或结构中的高度非线性,弱非线性或线性应力波的传播和/或用于观察和检测来自材料/结构的输出波的检测器 测试。 NDE方法包括使用可调高度非线性装置作为单独的脉冲激励器,或者与加速度计或非线性传感器组合以检测输出脉冲。

    SYSTEMS AND METHODS FOR CONTROLLING HIGHLY NONLINEAR ACOUSTIC WAVES OR PULSES
    7.
    发明申请
    SYSTEMS AND METHODS FOR CONTROLLING HIGHLY NONLINEAR ACOUSTIC WAVES OR PULSES 有权
    用于控制高非线性声波或脉冲的系统和方法

    公开(公告)号:US20110209940A1

    公开(公告)日:2011-09-01

    申请号:US13035681

    申请日:2011-02-25

    申请人: Chiara DARAIO

    发明人: Chiara DARAIO

    IPC分类号: G08B3/02

    摘要: Systems and methods for creating sound bullets are described. Such sound bullets are created by controlling and/or redirecting highly nonlinear acoustic waves or pulses propagating through an array of actuators. The controlling and/or redirecting of the acoustic waves or pulses is achieved though methods such as applying pre-compressive forces to the array of actuators or by selection of size, shape and/or material of the actuators.

    摘要翻译: 描述了用于创建声音子弹的系统和方法。 通过控制和/或重定向通过致动器阵列传播的高度非线性的声波或脉冲来产生这种声音子弹。 通过诸如对致动器阵列施加预压力或通过选择致动器的尺寸,形状和/或材料的方法来实现声波或脉冲的控制和/或重定向。

    METHOD AND APPARATUS FOR NONDESTRUCTIVE EVALUATION AND MONITORING OF MATERIALS AND STRUCTURES
    8.
    发明申请
    METHOD AND APPARATUS FOR NONDESTRUCTIVE EVALUATION AND MONITORING OF MATERIALS AND STRUCTURES 有权
    材料与结构非结构评估与监测方法与装置

    公开(公告)号:US20090204344A1

    公开(公告)日:2009-08-13

    申请号:US12251164

    申请日:2008-10-14

    IPC分类号: G01N29/11 G06F19/00

    摘要: A method and apparatus for nondestructive evaluation (NDE) of structures and materials using a highly nonlinear medium for the generation and detection of one or multiple highly nonlinear pulses (or highly nonlinear waves) impinging on a material or structure. The apparatus includes pulse exciters that induce the propagation of highly nonlinear, weakly nonlinear or linear stress waves in the material, system, or structure to be inspected and/or detectors for the observation and the detection of the output waves from the material/structure being tested. The NDE method includes the use of the tunable highly nonlinear apparatus as impulse exciter alone, or in combination with an accelerometer or a nonlinear sensor to detect the outgoing pulse.

    摘要翻译: 一种使用高度非线性介质的结构和材料的非破坏性评估(NDE)的方法和装置,用于产生和检测冲击材料或结构的一个或多个非线性脉冲(或高度非线性波)。 该装置包括脉冲激励器,其诱导要检查的材料,系统或结构中的高度非线性,弱非线性或线性应力波的传播和/或用于观察和检测来自材料/结构的输出波的检测器 测试。 NDE方法包括使用可调高度非线性装置作为单独的脉冲激励器,或者与加速度计或非线性传感器组合以检测输出脉冲。

    ACTUATION SYSTEM
    9.
    发明申请
    ACTUATION SYSTEM 有权
    执行系统

    公开(公告)号:US20090199643A1

    公开(公告)日:2009-08-13

    申请号:US12364974

    申请日:2009-02-03

    IPC分类号: G01N29/11

    摘要: A method and system for creating highly nonlinear solitary waves for use in performing nondestructive evaluation of structures and materials. The method and system use an apparatus having a spring loaded adjustable striker, a chain of granular particles, and a reloading device that allows for repeated activation of the adjustable striker.

    摘要翻译: 一种用于创建高度非线性孤波的方法和系统,用于对结构和材料进行非破坏性评估。 该方法和系统使用具有弹簧加载的可调节撞击器,粒状颗粒链的装置以及允许反复激活可调节撞击器的重新加载装置。