Large vibro-stand multi-bearing embedded state monitoring system

Abstract

The invention discloses a large vibro-stand multi-bearing embedded state monitoring system. The system is composed of a plurality of acceleration sensors, a plurality of temperature sensors, a sensorresponse data collection front end, a signal analysis processing platform, and signal real-time display equipment; the acceleration sensors and the temperature sensors are used for monitoring acceleration responses and temperature signals of various bearing bodies of the large vibro-stand system in real time; the signal analysis processing platform uploads and saves the signals of various sensors,performing postprocessing and analysis computation on various sensor signals to obtain stat indexes; and the signal real-time display equipment displays the real-time response data of various sensorsand the postprocessing results. The monitoring system disclosed by the invention can master a working state of the large vibro-stand in real time, thereby discovering the abnormity in time; the system has a good human-machine interaction interface and is reasonable in design, convenient to realize, convenient to operate, high in monitoring precision, wide in range, complete in function and strongpracticability, and especially suitable for the large vibro-stand with hundreds of T-shaped sliding bearings.

Description

technical field [0001] The invention belongs to the technical field of spacecraft mechanics environment test, in particular to a multi-bearing embedded state monitoring system of a large vibration table. Background technique [0002] In aerospace, aviation, vehicle and other engineering fields, vibration test, as an effective means to test product reliability and dynamic strength, has been widely used in product performance assessment and dynamic strength appraisal. Vibration test equipment generally includes a vibration table, control system, vibration measuring instrument and auxiliary equipment. The performance status of the vibration table, especially the performance status of the bearing assembly, affects the test control effect and product response. If the bearing suddenly fails during the test, it will affect the product test process, and in severe cases, the product will be damaged. Therefore, it is very necessary for the safety and reliability of large-scale spacec...

AI Technical Summary

Problems solved by technology

If the bearing suddenly fails during the test, it will affect the product test process, and in severe cases, the product will be damaged

Therefore, it is necessary to design a system that can monitor the status of each bearing of a large-scale shaking table, discover bearing hidden dangers in advance, and avoid product loss caused by bearing failure during the test, which is very necessary for the safety and reliability of large-scale spacecraft mechanical environment tests

At present, there is no monitoring method for the working state of large-scale vibrating table bearings at home and abroad, and there is no relevant research information

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