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Servo real-time measuring device used for rotating blade full-field dynamic deformation and servo real-time measuring method used for rotating blade full-field dynamic deformation

A dynamic deformation and real-time measurement technology, applied in the field of three-dimensional measurement, to achieve the effect of convenient layout, avoiding complicated process and small volume

Pending Publication Date: 2018-08-10
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The invention aims to solve the problem of real-time measurement of 360° all-phase and full-field dynamic deformation of rotating blades, and provides a new method for blade dynamic deformation detection

Method used

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  • Servo real-time measuring device used for rotating blade full-field dynamic deformation and servo real-time measuring method used for rotating blade full-field dynamic deformation
  • Servo real-time measuring device used for rotating blade full-field dynamic deformation and servo real-time measuring method used for rotating blade full-field dynamic deformation
  • Servo real-time measuring device used for rotating blade full-field dynamic deformation and servo real-time measuring method used for rotating blade full-field dynamic deformation

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Embodiment Construction

[0036] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, and the described specific embodiments are only for explaining the present invention, and are not intended to limit the present invention.

[0037] Such as figure 1 As shown, taking the binocular camera 2 opposite to a blade 4 as an example, the actual situation is as follows figure 1 As shown, the binocular camera 2 and the blade 4 exist in sets.

[0038] Such as figure 1 and figure 2 As shown, the present invention proposes a follow-up real-time measuring device for full-field dynamic deformation of rotating blades. The rotor involved includes a hub 5 and a blade 4, and the blade 4 is used as the object to be measured. The measuring device includes Mark point image sensing unit, photoelectric counting unit, real-time data processing unit based on embedded data, data communication unit based on wireless tran...

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Abstract

The invention discloses a servo real-time measuring device used for rotating blade full-field dynamic deformation. A binocular camera opposite to each blade is fixedly connected near the rotating center of the blade. A mark point is arranged on the blade. The blade and the binocular camera maintain to be relatively still circumferentially in the rotating process. The binocular camera is arranged in a sealing shell equipped with the glass window for effectively reducing the interference of rotating airflow. The blurred background interference caused by high speed rotation of the rotor wings isfiltered in advance for enhancing the image processing speed. The mark point is arranged by using the fluorescent light source material. The shell glass window is arranged as the band-pass light filter corresponding to the mark line fluorescent frequency. The binocular camera only obtains the image of the mark line. Real-time three-dimensional deformation is acquired through image acquisition anddata processing. The photoelectric counter is installed on the propeller hub, and the small laser generator is installed at the position face the machine body. Counting is triggered when the photoelectric counter rotates to the position of the laser generator in each rotating period to act as the zero phase position information of the measured blade.

Description

technical field [0001] The invention relates to the problem of large-scale spatial deformation measurement in the field of three-dimensional measurement, in particular to a device and method for tracking real-time measurement of full-phase dynamic full-field deformation of rotating blades based on binocular vision. Background technique [0002] The dynamic deformation detection of the blade can provide engineering personnel with the deformation law during the rotation of the blade, and provide direct data basis for the design and manufacture of the blade. For example, the deformation detection of helicopter rotors, large wind blades or large marine propeller blades is of great significance for the material performance verification, strength and vibration analysis of blades under high torque and high speed rotation, and can assist engineers to improve design and verify built deformation. correctness of the model. The deformation of each blade is different when the helicopter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/16
CPCG01B11/16
Inventor 裘祖荣张然李浩鹏胡文川尤悦
Owner TIANJIN UNIV
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