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3.5톤 상용차용 액슬샤프트의 피로강도 개선에 대한 연구
문홍주(Hong-Ju Moon),심기중(Ki-Joong Sim),전남진(Namjin Jeon) 한국기계가공학회 2018 한국기계가공학회지 Vol.17 No.3
This paper suggests how to improve the fatigue strength of an axle shaft, which is the vulnerable part of an axle shaft system for a 3.5-ton commercial vehicle. The axle shaft is composed of a universal joint with a spider and yoke, yoke shaft, and so on. Structural analysis of the initial axle shaft was conducted to select the exact area for structural strength fatigue improvement, and as a result, the inner/outer yoke shaft and spider were selected. Four cases considered design variables, such as length and thickness, to verify the enhanced durability of the axle shaft, and fatigue analysis was conducted. Finally, we suggest that the axle shaft system satisfied the working conditions for a 3.5-ton commercial vehicle.
상용차용 디스크 브레이크 제동시 열적거동 및 응력해석에 관한 연구
임강현(Kanghyoun Yim),백일현(Ilhyun Baek),조재천(Jaecheon Jo),문남수(Namsoo Moon),전남진(Namjin Jeon) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
Disc brake fixed to the axle with disc brakes and brake lining is a part of braking systems in commercial vehicle and is a tool to stop rotating squeezed. Specifications of the vehicle brake system, brake conditions, environmental conditions and the geometry of the disk and the pad, material properties and cooling conditions, etc. are made in the form of very complex. So there are many constraints on the theoretical approach. In addition, the actual analysis to verify these systems caused by a lot of trial and error must occur is difficult . The purpose of this study is to grasp the parameter affected to design of disc brake through analysis of heat stress applied to the temperature distribution, direction and scale of heat flow, analysis of heat trasnfer.