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Method for performing dynamic balance test on large rotating part

A rotating part, large-scale technology, applied in the field of mechanics, can solve problems such as state inconsistency, and achieve the effect of improving accuracy, improving measurement accuracy, improving measurement accuracy and trim efficiency

Active Publication Date: 2014-12-17
SHANGHAI SATELLITE ENG INST
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] In order to solve the deficiencies of the dynamic balance test and trim of the rotating parts in the prior art, and the inconsistency of the state, the present invention proposes to realize the independent measurement of the static unbalance and dynamic unbalance, the complete machine trim of the rotating parts, and ensure the balance state and assembly. Dynamic balance test method of rotating parts with consistent star state

Method used

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  • Method for performing dynamic balance test on large rotating part

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Embodiment Construction

[0027] Preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0028] Before describing the method of the present invention, the test device to be used in the present invention will be described first.

[0029] like figure 1 As shown, the testing device to be used in the present invention includes a three-axis air bearing table 1 , a gyroscope 2 and an XPC computer 3 . Wherein, the three-axis air bearing platform 1 selects a spherical air bearing to support the simulated platform body to realize microgravity within a certain angle range and the simulation of the free rotation environment in the directions of X, Y, and Z axes; the gyroscope Installed on the three-axis air bearing platform 1, it is used to measure the rotational angular velocity of the three-axis air bearing platform; the XPC computer 3 collects the angular velocity signal measured by the gyroscope 2 in real time, and eliminates the measurement err...

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Abstract

The invention discloses a method for performing a dynamic balance test on a large rotating part. The method is used for performing the dynamic balance test on the large rotating part on a test device comprising a three-shaft air-floating platform, a gyroscope, a XPC computer. The method comprises the following steps of testing the static unbalance amount of the rotating part to obtain the amount and the direction of the static unbalance amount of the rotating part; calibrating a diagonal speed zero signal; and testing the couple unbalance amount of the rotating part. By the method, the problems on the correction test and the robustness test of the dynamic balance test of the rotating part are solved, and the beneficial effects of improving the dynamic balance of the rotating part and reducing the influence of the rotating part on posture are achieved.

Description

technical field [0001] The invention relates to the field of mechanics, in particular to a method for performing a dynamic balance test on a large rotating part. Background technique [0002] The microwave imager used on the satellite works in a mechanical scanning mode. The weight of the rotating part is 60kg, and the rotation period is divided into two levels: 1.7s and 2s. When the large-scale high-speed rotating parts represented by the microwave imager are running, the disturbance torque generated by the dynamic unbalance exceeds the control bandwidth of the attitude-orbit control subsystem, and it cannot be effectively controlled, which will cause great interference to the attitude. It will also cause coupling of other flexible parts, causing the satellite to not work properly. Therefore, before installing the star, the interference torque of the large rotating parts should be measured, and the static unbalance and dynamic unbalance should be trimmed to reduce the inte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M1/16
Inventor 杨立峰薛孝补朱海江吕旺
Owner SHANGHAI SATELLITE ENG INST
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