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Blade two-dimensional mass moment measuring device

A technology of measuring device and mass moment, which is applied in the direction of measuring device, power measurement, torque measurement, etc., can solve the problem that the tangential and axial moments cannot be measured, and achieve the effect of convenient operation and accurate measurement

Pending Publication Date: 2022-03-25
AECC SHENYANG ENGINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide a blade two-dimensional mass moment measuring device to solve the problem in the prior art that only the radial moment can be measured, but the tangential and axial moments cannot be measured

Method used

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  • Blade two-dimensional mass moment measuring device
  • Blade two-dimensional mass moment measuring device
  • Blade two-dimensional mass moment measuring device

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0041] As a specific implementation, a blade two-dimensional mass moment measurement method, such as Image 6 shown, including the following steps:

[0042] Step S100, adjust the anchor screws on the base 5 according to the level 15 on the base 5 to keep the base 5 level, and install the sensor 4 and the adapter plate 3;

[0043] Step S200, installing the blade fixture 2 on the adapter plate 3, and ensuring the level of the blade fixture 2 through the vial 9;

[0044] Step S300, turn on the power supply, supply power to the sensor 4, and read the readings m1, m2, and m3 of the sensor 4 after the reading is stable;

[0045] Step S400, install the blade 16 on the blade clamp 2, rotate the handle 11 on the lifting device, and clamp the blade 16;

[0046] Step S500, after the readings are stable, record the readings m1', m2', m3' of the sensor 4;

[0047] Step S600, the sensor 4 is tared, and the readings m1', m2', m3' of the sensor 4 measured after the blade 16 is installed ar...

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Abstract

The invention relates to the field of turbofan engine tests, in particular to a blade two-dimensional mass moment measuring device, which is characterized in that a blade clamp is arranged to clamp and limit a blade, so that the blade is kept at a fixed angle, and the gravity center of the blade is kept at a fixed position; three groups of sensors are uniformly arranged at intervals in the circumferential direction of the gravity center of the blade so as to measure the weight of the blade at different angles, the actual deviation of the blade at different positions is obtained, and the axial torque and the tangential torque of the blade can be accurately calculated through corresponding calculation; the switching disc is connected between the blade clamp and the sensor, the actual mass of the blade needs to be obtained after the weight of the switching disc and the weight of the blade clamp are removed according to the value actually measured by the sensor, measurement is accurate, and operation is convenient.

Description

technical field [0001] The application belongs to the field of turbofan engine testing, and in particular relates to a blade two-dimensional mass moment measuring device. Background technique [0002] The large bypass ratio turbofan engine fan blade has a large dispersion of mass and center of mass position, so there are large radial, tangential, and axial moments during the rotation of the blades. The above three space moments become excitation vibrations during the operation of the fan rotor Therefore, it is necessary to measure the above three-dimensional moment of space and control the three-dimensional moment of blade space through the corresponding blade sorting method. [0003] At present, the uniaxial moment measurement equipment used in China can only measure the radial moment of the blade, ignoring the influence of the tangential and axial moment components, resulting in inaccurate measurement of the uniaxial moment, so how to measure the directions of the blade mo...

Claims

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Application Information

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IPC IPC(8): G01L3/00
CPCG01L3/00
Inventor 王文宇王娟关健
Owner AECC SHENYANG ENGINE RES INST