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    SENSOR AND METHOD FOR DETERMINING RELATIVE MOTION BETWEEN TWO OBJECTS
    1.
    发明公开
    SENSOR AND METHOD FOR DETERMINING RELATIVE MOTION BETWEEN TWO OBJECTS 审中-公开

    公开(公告)号：US20240337526A1

    公开(公告)日：2024-10-10

    申请号：US18743916

    申请日：2024-06-14

    申请人： Nanyang Technological University

    发明人： Qing ZHANG ,  Wei Bin SEH ,  Yin SUN ,  Ran XU ,  Joseph Sylvester CHANG

    IPC分类号： G01H11/06 ,  G01M7/02 ,  G01M13/045 ,  G01P3/48

    CPC分类号： G01H11/06 ,  G01M7/025 ,  G01M13/045 ,  G01P3/4802

    摘要： According to embodiments of the present invention, a sensor for determining relative motion between two objects is provided. The sensor includes a primary sensing part including a single primary electrode or multiple primary electrodes; a secondary sensing part including a single secondary electrode or multiple secondary electrodes; and one or more electrical measurement units. Each electrical measurement unit may be electrically coupled to a ground and one of the followings: the single primary electrode, a common electrical connection or separate electrical connections of the multiple primary electrodes, the single secondary electrode, a common electrical connecting point or separate electrical connecting points of the multiple secondary electrodes; or electrically coupled between two primary electrodes, or between two secondary electrodes. According to further embodiments, a method for determining at least one quantifiable parameter of relative motion between a movable object and a stationary object or another movable object is also provided.

    Method and device for acoustic wear measurement of linear or rotary drives
    2.
    发明公开
    Method and device for acoustic wear measurement of linear or rotary drives 审中-公开

    公开(公告)号：US20240328898A1

    公开(公告)日：2024-10-03

    申请号：US18622443

    申请日：2024-03-29

    申请人： Jenny Science AG

    发明人： Alois JENNY

    IPC分类号： G01M13/045 ,  H02K41/02

    CPC分类号： G01M13/045 ,  H02K41/02 ,  H02K2211/00

    摘要： A method for fault prevention in electric drives in industrial automation, including recording sound level signals inside of the electric drive during operation with known sound propagation geometry and known distance to the source of sounds, continuously comparing the sound power with a reference sound power and monitoring of the exceeding of the maximum value of the sound energy, continuously adding up the sound power over time when the sound power exceeds the reference sound power, continuously subtracting the sound power over time when the sound power falls below the reference sound power, with a minimum value of zero, and generating a warning or alarm when the maximum value of the sound energy is exceeded.

    NONLINEAR SPARSITY-BASED INSTANTANEOUS DYNAMIC FREQUENCY FAULT DIAGNOSIS METHOD FOR AVIATION INTERMEDIATE BEARING
    3.
    发明公开
    NONLINEAR SPARSITY-BASED INSTANTANEOUS DYNAMIC FREQUENCY FAULT DIAGNOSIS METHOD FOR AVIATION INTERMEDIATE BEARING 审中-公开

    公开(公告)号：US20240219900A1

    公开(公告)日：2024-07-04

    申请号：US18543433

    申请日：2023-12-18

    申请人： XI'AN JIAOTONG UNIVERSITY

    发明人： Shibin WANG ,  Yiming ZHENG ,  Chuanyi CHENG ,  Baoqing DING ,  Zhibin ZHAO ,  Xuefeng CHEN

    IPC分类号： G05B23/02 ,  G01M13/045

    CPC分类号： G05B23/0281 ,  G01M13/045 ,  G05B23/024

    摘要： The present disclosure discloses a nonlinear sparsity-based instantaneous dynamic frequency fault diagnosis method for an aviation intermediate bearing. In the method, a vibration signal and a rotating speed signal of high and low voltages of the intermediate bearing are acquired, and a vibration signal fragment x under a specific working condition is intercepted according to the rotating speed signal; a nonlinear sparse time-frequency enhancement model or a nonlinear sparse enhancement algorithm model is established based on derivative window function short-time Fourier transform of the vibration signal; the nonlinear sparse time-frequency enhancement model is solved or the nonlinear sparse enhancement algorithm model is improved by using a fast iterative shrinkage threshold algorithm and combining a k sparse strategy, and finally a nonlinear sparse time-frequency representation result {circumflex over (N)}x, may be obtained through iterative optimization.

    ROLLING BEARING ABNORMALITY DETECTION DEVICE AND ROLLING BEARING ABNORMALITY DETECTION METHOD
    5.
    发明公开
    ROLLING BEARING ABNORMALITY DETECTION DEVICE AND ROLLING BEARING ABNORMALITY DETECTION METHOD 审中-公开

    公开(公告)号：US20240210278A1

    公开(公告)日：2024-06-27

    申请号：US18577152

    申请日：2022-04-25

    申请人： KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)

    发明人： Keita KANAI ,  Toru OKADA ,  Kazuo YAMAGUCHI

    IPC分类号： G01M13/045

    CPC分类号： G01M13/045

    摘要： A rolling bearing abnormality detection device of the present invention detects a vibration generated in a rolling bearing as vibration data, obtains a frequency spectrum thereof, identifies a frequency indicating a peak as a peak frequency from the frequency spectrum within a predetermined frequency range including a theoretical frequency that brings about a peak on the frequency spectrum during occurrence of an abnormality, sets the peak frequency as a monitoring peak frequency of a monitoring target in a case where the peak frequency changes with time, and determines whether an abnormality is present, based on a peak value of a peak corresponding to the monitoring peak frequency.

    Method and An Arrangement for Identification of Lateral Vibration Characteristics of An Electric Machine
    6.
    发明公开
    Method and An Arrangement for Identification of Lateral Vibration Characteristics of An Electric Machine 审中-公开

    公开(公告)号：US20240192048A1

    公开(公告)日：2024-06-13

    申请号：US18524588

    申请日：2023-11-30

    申请人： ABB Schweiz AG

    发明人： Timo Holopainen ,  Tommi Ryyppö ,  Aron Szucs

    IPC分类号： G01H1/10 ,  G01M13/045 ,  H02K7/065 ,  H02K11/24

    CPC分类号： G01H1/10 ,  G01M13/045 ,  H02K7/065 ,  H02K11/24

    摘要： The invention relates to the field of electric drive devices and electric machines, such as electric drive motors and electric generators for industrial applications, and more particularly to a method and an arrangement for identification of lateral vibration characteristics of an electric machine. The arrangement for identification of lateral vibration characteristics of an electric machine according to the present invention includes a frequency converter, one or more vibration sensors and an electric machine, wherein said frequency converter is arranged for producing torsional excitation, said torsional excitation effecting lateral vibration in said electric machine; and wherein said one or more vibration sensors include at least one lateral vibration sensor arranged for measuring the lateral vibration from said electric machine as excitation response and for producing lateral vibration data.

    Globally-based automatic lubrication system
    7.
    发明授权
    Globally-based automatic lubrication system 有权

    公开(公告)号：US12007360B2

    公开(公告)日：2024-06-11

    申请号：US17131523

    申请日：2020-12-22

    申请人： U.E. Systems, Inc.

    发明人： William Bishop ,  Gary Mohr ,  Blair Fraser

    IPC分类号： F16H57/04 ,  G01M13/045 ,  G01N29/032 ,  G01N29/44 ,  F16N29/02

    CPC分类号： G01N29/032 ,  G01M13/045 ,  G01N29/4427 ,  G01N29/4454 ,  F16N29/02 ,  G01N2291/2696

    摘要： A bearing lubrication system includes an ultrasonic signal detector affixed in proximity or in contact with a set of bearings and a control unit. The control unit including (a) a lubrication dispenser fixed to a structure connected with the set of bearings and having an output for dispensing lubricant to the set of bearings through a controllable valve; and (b) a transceiver affixed in proximity to the set of bearings, said transceiver transmitting the ultrasonic signal to a location remote from the set of bearings. A hub computer is at the remote location that receives the ultrasonic signal from the transceiver. When the hub computer determines that the ultrasonic signal is above a local predetermined threshold the hub computer generates a local valve open/close signal and sends it back to the transceiver of the control unit. When the local valve open/close signal is received at the transceiver it causes the valve to open and allow lubricant to reach the bearings and closes the valve when the ultrasonic signal drops below the threshold.

    Apparatus For Determining Damage On Structural Components And Work Machine Comprising Such An Apparatus
    8.
    发明公开
    Apparatus For Determining Damage On Structural Components And Work Machine Comprising Such An Apparatus 审中-公开

    公开(公告)号：US20240167914A1

    公开(公告)日：2024-05-23

    申请号：US18552184

    申请日：2022-04-07

    申请人： Liebherr-Components Biberach GmbH

    发明人： Yvon Ilaka Mupende ,  Johannes Weimer

    IPC分类号： G01M13/045 ,  G01N29/44

    CPC分类号： G01M13/045 ,  G01N29/4436 ,  G01N2291/0258

    摘要： An apparatus for determining damage on structural components, for example large rolling bearings, on work machines, in particular construction, material handling and/or conveying machines, including at least one structure-borne sound sensor for detecting structure-borne sound signals of at least one structural component of the work machine, and also an evaluation device for evaluating the detected structure-borne sound signals and determining the damage state on the basis of a comparison of the detected structure-borne sound signals with at least one structure-borne sound signal reference pattern, provision being made of a detection device for detecting state and/or environmental changes relevant to structure-borne sound, and also an adapting device for adapting the at least one structure-borne sound signal reference pattern and/or an evaluation criterion of the evaluation device on the basis of the detected state and/or environmental changes.

    SYSTEMS AND METHODS FOR DETECTING BEARING FAILURES FOR DISK GANG ASSEMBLIES OF AGRICULTURAL IMPLEMENTS
    9.
    发明公开
    SYSTEMS AND METHODS FOR DETECTING BEARING FAILURES FOR DISK GANG ASSEMBLIES OF AGRICULTURAL IMPLEMENTS 审中-公开

    公开(公告)号：US20240085273A1

    公开(公告)日：2024-03-14

    申请号：US17940124

    申请日：2022-09-08

    申请人： CNH Industrial America LLC

    发明人： Brittany Schroeder

    IPC分类号： G01M13/045 ,  A01B35/16 ,  A01B79/00

    CPC分类号： G01M13/045 ,  A01B35/16 ,  A01B79/005

    摘要： In one aspect, a system for detecting bearing failures for disk gang assemblies of an agricultural implement includes a disk gang assembly comprising a shaft assembly including a shaft and at least one bearing rotatably supporting the shaft. The disk gang assembly also includes a plurality of disks supported on the shaft for rotation therewith. The system also includes a sensor provided in operative association with the shaft assembly, with the sensor being configured to generate data indicative of a bearing-related parameter associated with the shaft assembly. Additionally, the system includes a computing system communicatively coupled to the sensor, with the computing system being configured to monitor the bearing-related parameter based at least in part on the data received from the sensor, and identify that the bearing(s) is experiencing a bearing failure condition based at least in part on an evaluation of the monitored bearing-related parameter.