http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
고소 작업용 섬유로프의 고정 매듭법에 따른 강도 변화의 해석 및 실험적 연구
송상민,김민섭,신대용,임사혁,권오헌,박우림,Song, S.M.,Kim, M.S.,Shin, D.Y.,Lim, S.H.,Kwon, O.H.,Park, W.R. 한국안전학회 2022 한국안전학회지 Vol.37 No.3
Workplace accidents are common while working at elevations. Thus, various safety measures such as safety handrails and horizontal safety nets are implemented to prevent falls. The minimum safety measure is the lifeline installation. However, because its standards have not been clearly established, it is often misused, resulting in inappropriate knot methods that increase the chance of accidents while working at elevations. Therefore, clarifying the appropriate usage methods or criteria for the various lifelines is required in the field. This study proposed an appropriate installation method by experimentally and numerically evaluating the change in strength according to the fixed knot lifeline method. In addition, three knot methods were specified for each material. The results obtained are expected to contribute to lessening falls through the establishment of lifeline installation standards and the development of appropriate parts.
선박엔진용 4행정 일체형 크랭크샤프트 제조공정에 관한 연구
송상민(S. M. Song),송보경(B. K. Song),조원상(W. S. Cho),강호경(H. K. Kang) 한국소성가공학회 2010 한국소성가공학회 학술대회 논문집 Vol.2010 No.10
The purpose of this study is to manufacture a solid type-crankshaft for 4-stroke marine engine by a semi-closed die forging method (HJM-forging). In case of the semi-closed die forging for solid type-crankshaft, shape of preform and mould are most important because it can affect final dimensions of product. We obtained best shape of preform an, designed mould sets through FEM simulation. We carried out mock-up experiment to manufacture a solid type-crankshaft. As a result, we confirmed that HIM-forging method can maintain a continuous metal flow to crankshaft.