TEST CHAMBER AND METHOD FOR ITS OPERATION
    3.
    发明公开

    公开(公告)号:US20240044774A1

    公开(公告)日:2024-02-08

    申请号:US18228052

    申请日:2023-07-31

    IPC分类号: G01N17/00 F24F11/84 G01M99/00

    摘要: A test chamber and a method for conditioning air in which the test chamber comprises a temperature-insulated test space, which is closable to an environment and serves to receive test material, and a temperature control device for controlling the test space in temperature, a temperature ranging from −40 ° C. to +180 ° C. being generable within the test space by the temperature control device. The temperature control device comprises a cooling apparatus having a first and second cooling cycle, the first cooling cycle having a first refrigerant, a first heat exchanger, a first compressor, a first condenser and a first expansion element, the first refrigerant being a hydrocarbon or a refrigerant mixture made of hydrocarbons. The second cooling cycle has a heat transfer medium, a second heat exchanger in the test space and a pump, the second cooling cycle being coupled to the first cooling cycle by the first heat exchanger.

    Method of Generating A Thermal Model of A System Comprising An Electrical Machine

    公开(公告)号:US20240035932A1

    公开(公告)日:2024-02-01

    申请号:US18546094

    申请日:2021-02-16

    申请人: ABB Schweiz AG

    IPC分类号: G01M99/00 G06F30/23

    CPC分类号: G01M99/002 G06F30/23

    摘要: A method of generating, from a first thermal model describing the individual thermal behaviour of an electrical machine and a second thermal model describing the individual thermal behaviour of a device, a composite thermal model describing the thermal behaviour of a system having the electrical machine connected to the device, the method including: a) connecting at least one geometric entity of one of the first thermal model and the second thermal model to a plurality of geometric entities of the other one of the first thermal model and the second thermal model, each connection including at least one of a heat source and a thermal impedance, wherein the first thermal model and the second thermal model connected to each other form an initial composite thermal model, b) comparing measured temperatures with corresponding estimated temperatures obtained from the initial composite thermal model, and in case an estimated temperature deviates with more than a threshold value from a measured temperature, c) adjusting at least one of a thermal impedance and a heat source between a pair of geometric entities connected in step a).

    Solder fatigue modeling
    5.
    发明授权

    公开(公告)号:US11703817B2

    公开(公告)日:2023-07-18

    申请号:US17452324

    申请日:2021-10-26

    摘要: The present disclosure models the testing of oilfield electronic equipment that operate in high temperature downhole environments (possibly with large vibrational loading) in order to quantify the damage to the electronic equipment over its expected operational lifetime. The simulated downhole environment is complex and includes coupled random vibration and thermal cycling followed by repeated shock at high temperature. In embodiments, the proposed methods and system measure non-linear damage accumulation of the electronic equipment in this simulated downhole environment.

    PDM PERFORMANCE SIMULATION AND TESTING
    7.
    发明申请

    公开(公告)号:US20180216462A1

    公开(公告)日:2018-08-02

    申请号:US15938143

    申请日:2018-03-28

    申请人: Basintek, LLC

    IPC分类号: F01C20/28 G01M99/00 F01C1/10

    摘要: A method for measuring load performance of a positive displacement motor (PDM) test coupon. The test coupon comprises a partial length of a PDM stage and is received inside a sealable test chamber. In some embodiments, the test coupon may be cut from a failed PDM stage. The test chamber is filled with test fluid. In some embodiments, the test fluid may be drilling fluid sampled from a live well. Rotation of the rotor on the test coupon actuates rotation of the stator. A braking torque is applied to the stator rotation, enabling evaluation of, for example, fatigue load performance of test coupon. Additional embodiments comprise the rotor axis and the stator axis being offset in order to simulate rotor/stator eccentricity in a full size PDM stage.

    THERMAL SIMULATION SYSTEM
    8.
    发明申请

    公开(公告)号:US20180156552A1

    公开(公告)日:2018-06-07

    申请号:US15832699

    申请日:2017-12-05

    IPC分类号: F28F27/00 G01K17/20

    摘要: A thermal simulation system adapted to establish a test environment for a thermal test is provided. The thermal simulation system includes a communication element, a controllable loading element, a plurality of connectors, and a controller. The communication element is configured to receive at least one of a heating control signal, a fan control signal, and a loading control signal from an external electronic device. The controllable loading element is configured to provide a loading. The connectors are configured to connect a heating element and a fan. The controller is configured to control a heat energy generated by the heating element according to the heating control signal, control a fan speed of the fan according to the fan control signal, and control a loading value of the loading provided by the controllable loading element according to the loading control signal.

    Thermal displacement correction device for machine tool

    公开(公告)号:US09945799B2

    公开(公告)日:2018-04-17

    申请号:US14670719

    申请日:2015-03-27

    申请人: FANUC CORPORATION

    摘要: A thermal displacement correction device for a machine tool is provided with detection result determination unit configured to determine, based on an actual position and a reference position detected by position detection unit, whether or not the actual position is based on correct detection, correction error calculation unit configured to calculate a correction error in the actual position if it is determined that the result of detection is based on correct detection, and correction amount modification unit configured to modify a thermal displacement correction amount based on the correction error.