The University of Southampton
University of Southampton Institutional Repository

Thermal characteristics analysis and error prediction for lubricated multi-link high-speed precision presses

Thermal characteristics analysis and error prediction for lubricated multi-link high-speed precision presses
Thermal characteristics analysis and error prediction for lubricated multi-link high-speed precision presses

Thermal models are important in the process of predicting the thermal characteristics and corresponding thermal error of multi-link high-speed precision presses (MLHSPPs) with an oil-lubrication system. Previous models only involved the effects of bearing stiffness, temperature change of bearings, flexibility of crank shaft on the heat generation power, while the influences of revolute clearance joint and flexibility of linkage are seldom considered, which inevitably reduces the accuracy of thermal analysis. To overcome this problem, dynamic models of flexible multi-link mechanisms (MLM) with clearance, lubrication, crankshaft-bearing system are constructed, the interaction forces between pin and bushing are obtained to calculate its heat generation power. Then, an improved model of MLHSPP with lubrication is proposed to analyze the temperature evolution and the thermal error between slider and work table at the position of LDP, by considering bearing stiffness, temperature change of bearings, flexibility of crank shaft, linkage, clearance, lubrication and thermal contact resistance all together. Compared with results from traditional models, the simulation data from this improved thermal model agree well with experiment, which proves the validity of the proposed model. Furthermore, the temperature rise and the thermal error of MLHSPP between slider and work table at the position of LDP under different input speeds, lubricating oil flux and contact angles of ball bearing were also studied.

Absolute nodal coordinate formulation, Angular contact ball bearing, Finite element method, Flexibility, Multi-link mechanism, Oil lubrication
1738-494X
2537-2559
Zheng, Enlai
c50b35b4-b704-4333-ba59-c4aa6a3bc727
Yang, Yuanzhao
5179ab34-62d3-4fa8-9e9d-ccde49b698d1
Peng, Zhaohui
7716d296-dee5-4805-8a4e-505f3e9cf5be
Zhu, Yue
f983d386-4b5a-4f5d-a427-aa7909798bb0
Zhao, Xiao
70e12f26-5ece-46cd-a186-3cac70e99a6f
Lin, Xiangze
40d324ef-1e40-4570-bd06-7c7fec987c81
Kang, Min
bfdfb4db-1e68-4829-9e60-5377c5f25a41
Zheng, Enlai
c50b35b4-b704-4333-ba59-c4aa6a3bc727
Yang, Yuanzhao
5179ab34-62d3-4fa8-9e9d-ccde49b698d1
Peng, Zhaohui
7716d296-dee5-4805-8a4e-505f3e9cf5be
Zhu, Yue
f983d386-4b5a-4f5d-a427-aa7909798bb0
Zhao, Xiao
70e12f26-5ece-46cd-a186-3cac70e99a6f
Lin, Xiangze
40d324ef-1e40-4570-bd06-7c7fec987c81
Kang, Min
bfdfb4db-1e68-4829-9e60-5377c5f25a41

Zheng, Enlai, Yang, Yuanzhao, Peng, Zhaohui, Zhu, Yue, Zhao, Xiao, Lin, Xiangze and Kang, Min (2019) Thermal characteristics analysis and error prediction for lubricated multi-link high-speed precision presses. Journal of Mechanical Science and Technology, 33 (6), 2537-2559. (doi:10.1007/s12206-019-0503-y).

Record type: Article

Abstract

Thermal models are important in the process of predicting the thermal characteristics and corresponding thermal error of multi-link high-speed precision presses (MLHSPPs) with an oil-lubrication system. Previous models only involved the effects of bearing stiffness, temperature change of bearings, flexibility of crank shaft on the heat generation power, while the influences of revolute clearance joint and flexibility of linkage are seldom considered, which inevitably reduces the accuracy of thermal analysis. To overcome this problem, dynamic models of flexible multi-link mechanisms (MLM) with clearance, lubrication, crankshaft-bearing system are constructed, the interaction forces between pin and bushing are obtained to calculate its heat generation power. Then, an improved model of MLHSPP with lubrication is proposed to analyze the temperature evolution and the thermal error between slider and work table at the position of LDP, by considering bearing stiffness, temperature change of bearings, flexibility of crank shaft, linkage, clearance, lubrication and thermal contact resistance all together. Compared with results from traditional models, the simulation data from this improved thermal model agree well with experiment, which proves the validity of the proposed model. Furthermore, the temperature rise and the thermal error of MLHSPP between slider and work table at the position of LDP under different input speeds, lubricating oil flux and contact angles of ball bearing were also studied.

Full text not available from this repository.

More information

Accepted/In Press date: 15 March 2019
e-pub ahead of print date: 10 June 2019
Keywords: Absolute nodal coordinate formulation, Angular contact ball bearing, Finite element method, Flexibility, Multi-link mechanism, Oil lubrication

Identifiers

Local EPrints ID: 434183
URI: http://eprints.soton.ac.uk/id/eprint/434183
ISSN: 1738-494X
PURE UUID: 048e1070-1e31-47c7-89ee-e50964b64e50
ORCID for Xiao Zhao: ORCID iD orcid.org/0000-0002-9714-3176

Catalogue record

Date deposited: 13 Sep 2019 16:30
Last modified: 19 Feb 2021 02:50

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×