[ Best Paper of This Month ]

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 31, No. 5, pp.299-305

ISSN: 2508-5107 (Online)

Print publication date 15 Oct 2022

Received 30 Aug 2022 Revised 05 Oct 2022 Accepted 09 Oct 2022

DOI: https://doi.org/10.7735/ksmte.2022.31.5.299

유한요소해석 모델을 이용한 스핀들 유닛의 열변형 예측

서재우^a ; 박형욱^b^{, *}

Prediction of Thermomechanical Deformation of Spindle Unit using Finite Element Method

Jaewoo Seo^a ; Hyung Wook Park^b^{, *}

aDepartment of Mechanical Convergence Engineering, Gyeongsang National University
bDepartment of Mechanical Engineering, Ulsan National Institute of Science and Technology

Correspondence to: ^*Tel.: +82-52-217-2319 E-mail address: hwpark@unist.ac.kr(Hyung Wook Park).

Abstract

High-speed machining is essential in the manufacturing field, and it involves the removal of material through rotational and translational tool motion. Existing methods used for simulating the thermomechanical behavior of spindle systems in machining require extensive calculations owing to the geometry complexity and thermomechanical properties. This article presents a simplified model of an angular contact ball bearing and a simulation method for predicting the thermomechanical behavior of a spindle system. A commercially available software, ANSYS, was used to analyze the coupled behavior. The Matrix27 element was adopted to substitute the stiffness/damping characteristics of the angular contact ball bearing. Validated values of the thermal contact conductance for the contact option were adjusted to match the measured thermal characteristics of angular contact ball bearings. Experimental measurements of the temperature and deformation of a spindle were used to verify the simulated results for several preload conditions.

Keywords:

FEM, Bearing, Thermo-mechanical deformation, Spindle unit, Ansys

Acknowledgments

이 논문은 한국연구재단의 기초연구사업 지원(과제번호: 2021R1I1A1A01051407, 2022R1A2C3007963) 및 과학기술정보통신부가 출연금사업으로 지원한 4대 과기원 협력사업인 중소기업 R&D공유센터의 도움(과제번호: A0801043001)으로 수행되었습니다

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Jaewoo Seo

Assistant Professor of Mechanical Convergence Engineering at Gyeongsang National University. His research interests mainly include characterization of composite and multiscale manufacturing.

E-mail: jseo7717@gnu.ac.kr

Hyung Wook Park

Professor of Mechanical Engineering at Ulsan National Institute of Science and Technology. His research interests lie in the synthesis and fabrication of multi-functional composite and the advanced manufacturing system.

E-mail: hwpark@unist.ac.kr