利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

59 条记录 (耗时 0.016 秒)

    Three-parameter strength reduction method for slope stability evaluation
    1.
    发明授权
    Three-parameter strength reduction method for slope stability evaluation 有权

    公开(公告)号：US11703498B2

    公开(公告)日：2023-07-18

    申请号：US17174550

    申请日：2021-02-12

    申请人： Shaoxing University

    发明人： Yunjin Hu ,  Zhen Zhong ,  Huicai Gao ,  Zhenbo Wu ,  Huan Yang

    IPC分类号： G01N3/08 ,  G01N3/24 ,  G06F17/11 ,  G01N33/24 ,  E02D17/20

    CPC分类号： G01N33/24 ,  E02D17/20 ,  G01N3/08 ,  G01N3/24 ,  G06F17/11 ,  G01N2203/0026

    摘要： Disclosed is a three-parameter strength reduction method for slope stability evaluation. The present disclosure reflects the difference in the attenuation and contribution of the cohesion, internal friction angle and tensile strength in the process of slope instability by reducing the three parameters by different reduction factors. Based on the sudden change of the characteristic point displacement of the slope as a criterion of slope instability, the present disclosure derives the fitting relationship between the characteristic point displacement and the cohesion reduction factor. The present disclosure assumes that the comprehensive safety factor satisfies a linear relationship with the cohesion reduction factor, the internal friction angle reduction factor and the tensile strength reduction factor and derives the relationship between the comprehensive safety factor and the cohesion reduction factor. Finally, the present disclosure summarizes and proposes a three-parameter strength reduction method and provides the steps for analyzing the slope stability through this method.

    High frequency multi-axis simulation system
    3.
    发明授权
    High frequency multi-axis simulation system 有权
    高频多轴仿真系统

    公开(公告)号：US07966890B2

    公开(公告)日：2011-06-28

    申请号：US12146094

    申请日：2008-06-25

    申请人： David Louis Dingmann ,  Eric Thomas Gagner ,  Troy D. Nickel ,  Steven R. Seeman ,  Andrew D. White

    发明人： David Louis Dingmann ,  Eric Thomas Gagner ,  Troy D. Nickel ,  Steven R. Seeman ,  Andrew D. White

    IPC分类号： G05B15/02 ,  G05B11/01

    CPC分类号： G01N3/32 ,  G01N2203/0008 ,  G01N2203/0026 ,  G01N2203/0208 ,  G01N2203/0264 ,  G01N2203/027

    摘要： A multi-axis fatigue testing device includes a multi-axis test fixture having a multiple input, multiple output mechanical linkage driven by a plurality of actuators and a controller operating each of the plurality of actuators in real time and in synchronization to produce user-defined multiple fatigue cycle profiles. At least one of the actuators driving the mechanical linkage acts against an artificial load characterized by a stiffness. The stiffness is selected to increase a resonance frequency of the test fixture to allow fatigue testing at higher frequencies for a wider range of samples.

    摘要翻译： 多轴疲劳测试装置包括多轴测试夹具，其具有由多个致动器驱动的多输入多输出机械联动器和实时地并且同步地产生用户定义的多个致动器中的每一个的控制器 多个疲劳循环曲线。 驱动机械连杆的致动器中的至少一个作用于以刚度为特征的人造负载。 选择刚度以增加测试夹具的共振频率，以允许在更宽范围的样品的较高频率下的疲劳测试。

    Process and apparatus for testing the axles and/or springs and/or adjacent components of commercial vehicles
    5.
    发明授权
    Process and apparatus for testing the axles and/or springs and/or adjacent components of commercial vehicles 失效
    用于测试商用车辆的车轴和/或弹簧和/或相邻部件的方法和装置

    公开(公告)号：US4951504A

    公开(公告)日：1990-08-28

    申请号：US377470

    申请日：1989-07-10

    申请人： Jurgen Klock ,  Gerhard Fischer ,  Vatroslav Grubisic

    发明人： Jurgen Klock ,  Gerhard Fischer ,  Vatroslav Grubisic

    IPC分类号： G01M13/00 ,  G01M13/02 ,  G01M17/04 ,  G01N3/00

    CPC分类号： G01N3/00 ,  G01M13/00 ,  G01M13/027 ,  G01M17/04 ,  G01N2203/0026 ,  G01N2203/0288 ,  G01N2203/029

    摘要： The invention provides a process and an apparatus for testing commercial icle axles and/or springs and/or components adjacent thereto under load conditions resembling those occurring in practice. An entire commercial vehicle axle with two commercial vehicle springs and original attachment parts are tested by the introduction of low frequency deformations of vertical forces into a supporting assembly and of lateral forces, longitudinal forces and high frequency vertical wheel forces in each case into a wheel substitute or wheel or a brake force transmitting lever. In the course of this test, the supporting assembly is tilted about a pivot shaft or pivot axis which is displaceable in the vertical direction so that the axle of the commercial vehicle remains parallel to the horizontal. Vertical spring excursions and tilting of the supporting assembly are brought about by two vertical force generators which act on the supporting assembly and produce forces of reaction at the point of contact of the wheel tread with the vertical support. For testing the springs of the commercial vehicle alone, only one lateral force generator is used instead of two; and for the introduction of braking and driving forces and/or longitudinal forces, only one braking and driving force generator is used instead of two and, respectively, only one longitudinal force generator instead of two. The single force generator then acts at the center of the axle by way of a force transmitting means which is fixed to the right and the left wheel substitute or the right and left brake force transmitting lever.

    摘要翻译： 本发明提供了一种用于在类似于实际发生的载荷条件下测试商用车辆车轴和/或与其相邻的部件的装置。 具有两个商业车辆弹簧和原始附件的整个商业车辆车轴通过将垂直力的低频变形引入支撑组件以及在每种情况下的侧向力，纵向力和高频垂直轮力引入到轮子替代物中来测试 或车轮或制动力传递杆。 在该测试的过程中，支撑组件围绕枢转轴或枢转轴线倾斜，该枢转轴或枢转轴线可在垂直方向上移动，使得商用车辆的车轴保持与水平面平行。 支撑组件的垂直弹簧偏移和倾斜由作用在支撑组件上的两个垂直力产生器引起，并且在轮胎踏面与垂直支撑件的接触点处产生反作用力。 为了单独测试商用车的弹簧，仅使用一个侧向力发生器而不是两个; 并且为了引入制动和驱动力和/或纵向力，仅使用一个制动和驱动力发生器来代替两个并且仅分别仅一个纵向力发生器而不是两个。 然后单个力发生器通过力传递装置作用在车轴的中心，该力传递装置固定在右侧和左侧车轮上的替代物或左右制动力传递杆上。

    PEEL BENDING MOMENT CALCULATION
    8.
    发明申请
    PEEL BENDING MOMENT CALCULATION 审中-公开

    公开(公告)号：US20180275032A1

    公开(公告)日：2018-09-27

    申请号：US15468984

    申请日：2017-03-24

    申请人： Honda Motor Co., Ltd.

    发明人： Sameer Gupta

    IPC分类号： G01N3/20 ,  B23K31/12

    CPC分类号： G01N3/20 ,  B23K31/12 ,  B23K31/125 ,  B23K2101/006 ,  G01N19/04 ,  G01N2203/0026 ,  G01N2203/0067 ,  G01N2203/0091

    摘要： Methods to accurately determine the maximum bending moment Mb for a spot weld are provided. The methods include subjecting a test coupon including a spot weld, to a coach peel test and monitoring the test coupon using digital image correlation in order to determine the bending moment arm length at peak force. The bending moment arm length at peak force is multiplied by the peak force value to provide an accurate maximum bending moment for the spot weld. The calculated maximum bending moment Mb is used in a combined force based spot weld failure calculation to predict failure of a spot weld under a combined loading condition.

    Instrument for measuring the intrinsic strength of polymeric materials via cutting
    9.
    发明授权
    Instrument for measuring the intrinsic strength of polymeric materials via cutting 有权

    公开(公告)号：US10054525B2

    公开(公告)日：2018-08-21

    申请号：US15193256

    申请日：2016-06-27

    申请人： Endurica, LLC

    发明人： William V. Mars

    IPC分类号： G01N3/08 ,  G01N3/04

    CPC分类号： G01N3/08 ,  G01N3/04 ,  G01N2203/0026 ,  G01N2203/0066 ,  G01N2203/0091 ,  G01N2203/0092

    摘要： A testing instrument and method for measuring the intrinsic strength of polymeric materials via cutting includes a pair of mechanical clamps connected at a base to low-friction hinges. The clamps are configured to secure the elongate edges of a polymer specimen, and to periodically load the specimen to a predetermined strain. The load on the specimen while strained is measured with an opening force load sensor. While in the strained condition, the specimen is cut with a highly sharpened blade, and the cutting force also measured by a cutting force load sensor. A cutting energy curve may be plotted from these measurements, from which a cutting energy can further be derived.