http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
중형 선박엔진의 커넥팅 라드 강도 검토를 위한 작용하중 모델링에 대한 연구
함주혁 한라대학교 2007 論文集 Vol.10 No.-
개발용 선박 중형엔진의 피스톤 연결봉에 대한 강도 해석을 위한 작용하중들을 고찰하고 선박중형엔진 연결봉의 작용하중을 모델링하여 보았다. 본 구조물 해석 검토의 근본적인 목적은 제시된 선박 중형엔진의 피스톤과 크랭크축을 잇는 연결봉에 대한 최대인장, 압축하중 및 조립하중에 대한 구조적 신뢰성 및 내구성을 확보함에 있으며 중형엔진 개발을 위한 기술축척의 일환인 중형엔진의 구동부에 대한 구조물의 해석의 한 수행 항목이다. 1000 rpm에서의 구동부의 왕복질량에서 야기되는 관성력에 기인한 인장력과 연소실의 150bar에 달하는 최대 개스 폭발압력에 따른 압축력에 대한 하중, 볼트 체결력 및 부시(Bush)하중 등을 고려한 정적하중 해석을 수행하여 이들의 응력 및 변위량을 확인하고 피로분석을 행하기 위한 하중을 설정키 위한 연구이다, 이들 결과치는 엔진개발을 위한 중요한 기준자료로 활용될 수 있다.
파충격에 대한 고속 경구조선 알루미늄 판 및 보강판 부재의 강도 고찰
함주혁 한라대학교 2006 論文集 Vol.9 No.-
In order to utilize the parts of approval data for the 4.3 ton aluminium planning boat structure as the first attempt in Korea, feasibilities of bottom plate scantling of the ship are investigated In this paper, firstly, the strength of bottom plate member are examined using elasto-plastic nonlinear structural analysis and response levels were reviewed according to the suggested several design pressures and appropriate response range based on the yield criterion can be suggested based on the analysis results Secondly, in order to suggest the design guides in respect of the ship structural designer, safety factor range of 4.3 ton aluminium boat was prepared through the introduction of safety factor concept based on the ultimate design pressure Finally, in related to this study, abbreviate structural plans which were approved in the first place domestically, were introduced From the precise analysis and review through the additional studies, design criteria will be extended for each type and size of ship structure and more rational design pressure will be also treated if being necessary in future works
함주혁 한국해양공학회 2019 韓國海洋工學會誌 Vol.33 No.2
A design system was developed for the doubler plate of a ship structure simultaneously subjected to in-plane loads and lateral pressure based on general dimensions and those of a representative ship structure. An equivalent design equation that considers various structural design parameters was derived by introducing the equivalent plate thickness theory, and the design of the doubler plate reinforcement of the ship structure was developed. A hybrid structural design system was established for a doubler plate simultaneously subjected to in-plane loads and lateral pressure consisting of two modules: an optimized design module and a double plate strength & design review module. The practical application of this design system was illustrated to show its usability. It was found that the design safety of the doubler plate was ensured, and this system could be used as an initial design guide to review the double plate reinforcement for a dent or corrosion of the ship plate members. Using the developed design system would make it possible to obtain a more reasonable doubler plate structure that considers the rational reinforcement of plate members of ship structures. In addition, a more reliable structural analysis using a strength evaluation process can be performed to verify the efficiency of the optimum structural design for the doubler plate structure.
양축 면내 압축하중 하의 이중판보강 선박판부재의 설계시스템 구축
함주혁(Juh-Hyeok Ham) 한국해양공학회 2016 韓國海洋工學會誌 Vol.30 No.4
Because of the importance of steel material saving and rational ship structural design due to the rapid increase in steel prices, a ship structural design system was developed for plate members reinforced by doubler plates subjected to biaxial in-plane compressive loads. This paper mainly emphasizes the design system improvement and upgrade according to the change in the in-plane loading condition of the doubler plate from the single load discussed in a previous paper to the biaxial in-plane compressive load discussed in this paper. A direct design process by a structural designer was added to this developed optimized system to increase the design efficiency and provide a way of directly inserting a designer"s decisions into the design system process. As the second stage of preliminary steps of doubler design system development, design formulas subjected to these biaxial loads used in the doubler plate design system were suggested. Based on the introduction of influence coefficients Ktc, Ktd, Kbd and Kad based on the variations in the doubler length, breadth, doubler thickness, and average corrosion thickness of the main plate reinforced by the doubler plate, respectively, the design formulas for the equivalent plate thickness of the main plate reinforced by the doubler plate were also developed, and a hybrid design system using these formulas was suggested for the doubler plate of a ship structure subjected to a biaxial in-plane compressive load. Using this developed design system for a main plate reinforced by a doubler plate was expected to result in a more rational reinforced doubler plate design considering the efficient reinforcement of ship plate members subjected to these biaxial loads. Additionally, a more detail structural analysis through local strength evaluations will be performed to verify the efficiency of the optimum structural design for a plate member reinforced by a doubler plate.