Thermal Error Compensation of the Wear-Depth Real-Time Detecting of Self-Lubricating Spherical Plain Bearings

Abstract The spherical plain bearing test bench is a necessary detecting equipment in the research process of self-lubricating spherical plain bearings. The varying environmental temperatures cause the thermal deformation of the wear-depth detecting system of bearing test benches and then affect the...

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Main Authors: Zhan-Qi Hu, Wei Li, Yu-Lin Yang, Bing-Li Fan, Hai-Li Zhou
Format: Article
Language:English
Published: SpringerOpen 2018-10-01
Series:Chinese Journal of Mechanical Engineering
Subjects:
Online Access:http://link.springer.com/article/10.1186/s10033-018-0288-4
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author Zhan-Qi Hu
Wei Li
Yu-Lin Yang
Bing-Li Fan
Hai-Li Zhou
author_facet Zhan-Qi Hu
Wei Li
Yu-Lin Yang
Bing-Li Fan
Hai-Li Zhou
author_sort Zhan-Qi Hu
collection DOAJ
description Abstract The spherical plain bearing test bench is a necessary detecting equipment in the research process of self-lubricating spherical plain bearings. The varying environmental temperatures cause the thermal deformation of the wear-depth detecting system of bearing test benches and then affect the accuracy of the wear-depth detecting data. However, few researches about the spherical plain bearing test benches can be found with the implementation of the detecting error compensation. Based on the self-made modular spherical plain bearing test bench, two main causes of thermal errors, the friction heat of bearings and the environmental temperature variation, are analysed. The thermal errors caused by the friction heat of bearings are calculated, and the thermal deformation of the wear-depth detecting system caused by the varying environmental temperatures is detected. In view of the above results, the environmental temperature variation is the main cause of the two error factors. When the environmental temperatures rise is 10.3 °C, the thermal deformation is approximately 0.01 mm. In addition, the comprehensive compensating model of the thermal error of the wear-depth detecting system is built by multiple linear regression (MLR) and time series analysis. Compared with the detecting data of the thermal errors, the comprehensive compensating model has higher fitting precision, and the maximum residual is only 1 μm. A comprehensive compensating model of the thermal error of the wear-depth detecting system is proposed, which provides a theoretical basis for the improvement of the real-time wear-depth detecting precision of the spherical plain bearing test bench.
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spelling doaj.art-f6be1fbb6a0b4743aaae7c8efff434512022-12-22T00:58:23ZengSpringerOpenChinese Journal of Mechanical Engineering1000-93452192-82582018-10-0131111310.1186/s10033-018-0288-4Thermal Error Compensation of the Wear-Depth Real-Time Detecting of Self-Lubricating Spherical Plain BearingsZhan-Qi Hu0Wei Li1Yu-Lin Yang2Bing-Li Fan3Hai-Li Zhou4Aviation Key Laboratory of Science and Technology on Generic Technology of Aviation Self-Lubricating Spherical Plain Bearing, Yanshan UniversityAviation Key Laboratory of Science and Technology on Generic Technology of Aviation Self-Lubricating Spherical Plain Bearing, Yanshan UniversityAviation Key Laboratory of Science and Technology on Generic Technology of Aviation Self-Lubricating Spherical Plain Bearing, Yanshan UniversityAviation Key Laboratory of Science and Technology on Generic Technology of Aviation Self-Lubricating Spherical Plain Bearing, Yanshan UniversityAviation Key Laboratory of Science and Technology on Generic Technology of Aviation Self-Lubricating Spherical Plain Bearing, Yanshan UniversityAbstract The spherical plain bearing test bench is a necessary detecting equipment in the research process of self-lubricating spherical plain bearings. The varying environmental temperatures cause the thermal deformation of the wear-depth detecting system of bearing test benches and then affect the accuracy of the wear-depth detecting data. However, few researches about the spherical plain bearing test benches can be found with the implementation of the detecting error compensation. Based on the self-made modular spherical plain bearing test bench, two main causes of thermal errors, the friction heat of bearings and the environmental temperature variation, are analysed. The thermal errors caused by the friction heat of bearings are calculated, and the thermal deformation of the wear-depth detecting system caused by the varying environmental temperatures is detected. In view of the above results, the environmental temperature variation is the main cause of the two error factors. When the environmental temperatures rise is 10.3 °C, the thermal deformation is approximately 0.01 mm. In addition, the comprehensive compensating model of the thermal error of the wear-depth detecting system is built by multiple linear regression (MLR) and time series analysis. Compared with the detecting data of the thermal errors, the comprehensive compensating model has higher fitting precision, and the maximum residual is only 1 μm. A comprehensive compensating model of the thermal error of the wear-depth detecting system is proposed, which provides a theoretical basis for the improvement of the real-time wear-depth detecting precision of the spherical plain bearing test bench.http://link.springer.com/article/10.1186/s10033-018-0288-4Self-lubricating spherical plain bearingWear depthBearing test benchThermal errorError compensation
spellingShingle Zhan-Qi Hu
Wei Li
Yu-Lin Yang
Bing-Li Fan
Hai-Li Zhou
Thermal Error Compensation of the Wear-Depth Real-Time Detecting of Self-Lubricating Spherical Plain Bearings
Chinese Journal of Mechanical Engineering
Self-lubricating spherical plain bearing
Wear depth
Bearing test bench
Thermal error
Error compensation
title Thermal Error Compensation of the Wear-Depth Real-Time Detecting of Self-Lubricating Spherical Plain Bearings
title_full Thermal Error Compensation of the Wear-Depth Real-Time Detecting of Self-Lubricating Spherical Plain Bearings
title_fullStr Thermal Error Compensation of the Wear-Depth Real-Time Detecting of Self-Lubricating Spherical Plain Bearings
title_full_unstemmed Thermal Error Compensation of the Wear-Depth Real-Time Detecting of Self-Lubricating Spherical Plain Bearings
title_short Thermal Error Compensation of the Wear-Depth Real-Time Detecting of Self-Lubricating Spherical Plain Bearings
title_sort thermal error compensation of the wear depth real time detecting of self lubricating spherical plain bearings
topic Self-lubricating spherical plain bearing
Wear depth
Bearing test bench
Thermal error
Error compensation
url http://link.springer.com/article/10.1186/s10033-018-0288-4
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