TY - JOUR
T1 - Lightweight design of a sledge frame for para ice hockey using design for additive manufacturing
AU - Oh, Eun Ji
AU - Lee, Ju Hye
AU - Kim, Jae Eun
AU - Park, Keun
N1 - Publisher 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.
PY - 2020/6
Y1 - 2020/6
N2 - The purpose of this study was to design a sledge frame for para ice hockey in which an athlete sits and plays on a sledge. A sledge comprises a bucket, a blade carrier, and a frame. A sledge frame is usually fabricated by welding a number of pipes, and thus its structural safety is degenerated at the welded joints. In this study, the sledge frame was redesigned using the principle of DfAM (Design for Additive Manufacturing), to reduce the frame weight as well as to have sufficient structural safety. As an application of DfAM, the part consolidation was performed for six joints from which the number of welding spots was reduced to 56% (From 16 to 9). Among the resulting four consolidated joints, topology optimization was performed for three joints to reduce their weight while maintaining higher structural stiffness and safety. As a result, the structural stiffness and safety of the joints improved remarkably, and the resulting frame weight was reduced by 20% (From 1.66 to 1.34 kg). This weight reduction with structural enhancement is expected to improve athletes' performance and safety in para ice hockey games.
AB - The purpose of this study was to design a sledge frame for para ice hockey in which an athlete sits and plays on a sledge. A sledge comprises a bucket, a blade carrier, and a frame. A sledge frame is usually fabricated by welding a number of pipes, and thus its structural safety is degenerated at the welded joints. In this study, the sledge frame was redesigned using the principle of DfAM (Design for Additive Manufacturing), to reduce the frame weight as well as to have sufficient structural safety. As an application of DfAM, the part consolidation was performed for six joints from which the number of welding spots was reduced to 56% (From 16 to 9). Among the resulting four consolidated joints, topology optimization was performed for three joints to reduce their weight while maintaining higher structural stiffness and safety. As a result, the structural stiffness and safety of the joints improved remarkably, and the resulting frame weight was reduced by 20% (From 1.66 to 1.34 kg). This weight reduction with structural enhancement is expected to improve athletes' performance and safety in para ice hockey games.
KW - 3D printing
KW - Design for additive manufacturing
KW - Finite element analysis
KW - Part consolidation
KW - Topology optimization
UR - https://www.scopus.com/pages/publications/85088214975
U2 - 10.7736/JKSPE.020.039
DO - 10.7736/JKSPE.020.039
M3 - Article
AN - SCOPUS:85088214975
SN - 1225-9071
VL - 37
SP - 407
EP - 414
JO - Journal of the Korean Society for Precision Engineering
JF - Journal of the Korean Society for Precision Engineering
IS - 6
ER -
