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Vibration measuring device for multi-size outline rotor of engine and digital twinning method of vibration measuring device

A multi-size, engine technology, applied in the direction of engine testing, measuring devices, machine/structural component testing, etc., can solve the problems of inaccurate placement of magnetic gauges, cumbersome angles, measurement errors, etc., and achieve small axial spacing Intensive layout solutions, avoiding repetitive adjustments, and speeding up the overall progress

Active Publication Date: 2021-11-02
NORTHEASTERN UNIV
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Problems solved by technology

By changing the structure design of the sensor bracket in the vibration measurement technology, it solves the tediousness of repeated debugging distance and angle. Due to the limitation of the volume of the magnetic meter seat itself, the existing vibration measurement technology cannot realize the dense arrangement of infrared displacement sensors with small spacing in the axial direction of the rotor. There are measurement errors caused by inaccurate placement of the magnetic base in the vibration measurement technology, and the difficulty in positioning the small angle offset or small distance offset that occurs when the magnetic base is finally locked.

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  • Vibration measuring device for multi-size outline rotor of engine and digital twinning method of vibration measuring device
  • Vibration measuring device for multi-size outline rotor of engine and digital twinning method of vibration measuring device
  • Vibration measuring device for multi-size outline rotor of engine and digital twinning method of vibration measuring device

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Embodiment Construction

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

[0041] It should be noted that in the description of the present invention, the terms "upper", "lower", "top", "bottom", "side", "other side", "left", "right" etc. indicate The orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplification of the description, and does not mean that devices or elements must have a specific orientation, be constructed and operated in a s...

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Abstract

The invention relates to a vibration measurement device for a multi-size outline rotor of an engine and a digital twinning method thereof. The device comprises a vibration measurement assembly and a data acquisition assembly, wherein the vibration measuring assembly comprises a stand column, a cross beam structure, a three-degree-of-freedom sensor support adjusting mechanism and a base, and the data acquisition assembly comprises a test computer, an LMS test system, an infrared displacement sensor, a rotary encoder and a USBCAN device. The invention can solve the following technical problems: repeated debugging of distance and angle is complex, and infrared displacement sensors cannot be densely arranged at small intervals in the axial direction of a rotor due to the limitation of the size of a magnetometer base in the existing vibration measurement technology; and the problem of measurement errors caused by inaccurate placement of the magnetic gauge stand in the prior art of vibration measurement is solved, and the positioning difficulty of small-angle deviation or small-distance deviation occurring when the magnetic gauge stand is finally locked is solved. Besides, the digital twin technology is applied to the aero-engine rotor test, so that the advancement of the aero-engine rotor vibration test technology is improved.

Description

technical field [0001] The invention relates to the technical field of aero-engine testing, in particular to a vibration measuring device and a digital twinning method for an engine multi-size profile rotor. Background technique [0002] The existing vibration measurement technology is mainly a vibration measurement device composed of a distance regulator, an infrared displacement sensor fixer, etc., plus an infrared distance infrared displacement sensor and a data collector to form a vibration measurement system, which is widely used in machine tool shafts and Engine rotor or other rotating machinery vibration testing occasions. Existing distance regulators are generally composed of magnetic gauge bases and fixing bolts, such as the distance demodulator disclosed in patent document CN104776987A. Most of the existing vibration measuring devices are fixed on the base with a magnetic base, on which the slide rail is fixed by bolts, the sensor bracket is fixed by two bolts at ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M15/02G01H1/00G01B11/02G06F30/20
CPCG01M15/02G01H1/006G01B11/02G06F30/20
Inventor 罗忠刘凯宁李雷刘家希孙凯石宝龙
Owner NORTHEASTERN UNIV
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