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적층 제조 특화설계 기법을 적용한 장애인 아이스하키용 썰매 프레임 경량 설계

Lightweight Design of a Sledge Frame for Para Ice Hockey Using Design for Additive Manufacturing

Journal of the Korean Society for Precision Engineering 2020;37(6):407-414.
Published online: June 1, 2020

1 서울과학기술대학교 기계시스템디자인공학과

2 서울과학기술대학교 대학원 기계설계로봇공학과

1 Department of Mechanical System Design Engineering, Seoul National University of Science and Technology

2 Graduate School of Mechanical Design and Robot Engineering, Seoul National University of Science and Technology

#E-mail: kpark@seoultech.ac.kr, TEL: +82-2-970-6358
• Received: March 23, 2020   • Revised: April 8, 2020   • Accepted: April 22, 2020

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Lightweight Design of a Sledge Frame for Para Ice Hockey Using Design for Additive Manufacturing
J. Korean Soc. Precis. Eng.. 2020;37(6):407-414.   Published online June 1, 2020
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Lightweight Design of a Sledge Frame for Para Ice Hockey Using Design for Additive Manufacturing
J. Korean Soc. Precis. Eng.. 2020;37(6):407-414.   Published online June 1, 2020
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Lightweight Design of a Sledge Frame for Para Ice Hockey Using Design for Additive Manufacturing
Image Image Image Image Image Image Image Image Image Image Image Image Image Image
Fig. 1 Configuration of the sledge frame for para ice hockey
Fig. 2 Free body diagrams of the sledge frame at each joint
Fig. 3 Structural FE analysis results for initial design of joint A
Fig. 4 Structural FE analysis results for initial design of joint F
Fig. 5 Structural FE analysis results for initial design of joint BED
Fig. 6 Configuration of joint C with the consolidated design
Fig. 7 Topology optimization procedure for the joint A
Fig. 8 Topology optimization procedure for the joint F
Fig. 9 Topology optimization procedure for the joints BED
Fig. 10 FE analysis results for the optimized design of joint A
Fig. 11 FE analysis results for the optimized design of joint F
Fig. 12 FE analysis results for the optimized design of joint BED
Fig. 13 Final frame design with DfAM approaches (Topology optimization and part consolidation)
Fig. 14 Fabricated joint parts using metal additive manufacturing
Lightweight Design of a Sledge Frame for Para Ice Hockey Using Design for Additive Manufacturing
Material AA6061-T4 AlSi10Mg
Density [kg/m3] 2770 2670
Elastic modulus [GPa] 69 60
Poisson’s ratio [s] 0.33 0.3
Yield strength [MPa] 145 137
Joint design m [g] δmax [mm] σmax [MPa] F. S.
A Initial 167.1 153.0 39.6 3.66
Optimized 122.1 119.1 29.2 4.69
F Initial 318.7 178.1 23.5 6.17
Optimized 276.0 12.6 5.7 24.0
BED Initial 618.6 221.4 42.5 3.41
Optimized 668.3 35.8 16.6 8.25
Joint A C F BED Total
Initial design 167.1 63.7 318.7 618.6 1663
Final design 122.1 37.5 276.0 668.3 1387
Measured 116.4 35.6 258.5 640.0 1338
Table 1 Mechanical properties of aluminum alloys
Table 2 Comparison of the structural FE analysis results
Table 3 Comparison of weights for each joint (Unit: g)