http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
오늘 본 자료
손창련(Chang-Ryeon, Son),심상목(Sang-Mog, Sim),박충환(Chung-Hwan, Park),이경환(Kyung-Hwan, Lee) 한국항해항만학회 2006 한국항해항만학회 학술대회논문집 Vol.3 No.2
최근 극내 중형급 조선소에서는 케미컬 탱커선을 주력선종으로 건조하고 있다. 하지만 선형개발 기술이 미비하여 저항감소 선형개발에 소홀하였다. 또한 기존 대형선박의 선형을 그대로 사용하기 때문에 추진효율이 떨어지고 많은 선수저항이 발생하여 선속에 큰 영향을 미치게 된다. 이에 본 연구에서는 CFD이론 해석을 통해 선형특성을 파악하고 저항감소 및 추진 효율 향상을 위해 실적선과 개발대상선의 모형시험을 통하여 선수저항 성능을 비교, 분석하여 저항감소 선수선형을 개발하였다.
손창련(Chang-Ryeon Son),이경환(Kyung-Hwan Lee) 한국항해항만학회 2007 한국항해항만학회 학술대회논문집 Vol.2 No.춘계
최근 우리나라는 국민소득이 증가와 해양레저에 대한 관심이 높아지면서 선진국형 레저에 대한 관심이 증가되고 있다. 이에 맞물려 레저보트에 부과되던 특소세 폐지로 가격부담이 줄어들게 되면서 레저보트 구매에 대한 관심도 증가되고 있다. 또한 자동차의 보급률이 증가하면서 레저를 즐기기 위한 RV차량의 비중도 늘어나고 있는 추세이다. 하지만 레저보트 운반시 트레일러를 추가로 구입하여 운반에 사용하였으나 트레일러 가격이 고가이고 장·탈착이 불편하다. 또한 관계기관에 신고하여 등록하기 때문에 번거로우며 운행시 사고위험에 노출되어 있다. 이에 본 연구에서는 RV차량위에 탑재 가능한 레저보트를 개발하고 유한요소해석을 통해 RV차량에 탑재시 하중분포 및 안정성을 검증하고 조선공학적 검토를 통한 복원성능 검증을 수행하였다.
코드체크와 열전달해석을 이용한 해양플랜트용 수동형 방화 구조설계 평가
최보엽(Bo Youp Choi),손창련(Chang Ryeon Son),손준식(Joon Sik Son),김병남(Byeong Nam Kim),전주연(Ju Yeon Jeon),송창용(Chang Yong Song),정준모(Joonmo Choung),허태욱(Tae Uk Heo) 대한기계학회 2017 대한기계학회 춘추학술대회 Vol.2017 No.11
For the safe design of the offshore plant, it is necessary to evaluate not only the marine environment of the offshore plant installation area but also extreme conditions such as fire and explosion. For the safe evacuation of crews in danger of fire and explosion, the offshore plant requires an exclusive escape facility. Passive Fire Protection (PFP) is widely used as one of such facilities. In order to realize the reasonable structural design of PFP, evaluation of structural strength based on offshore design code considering various loadings from fire, explosion marine environment. In this study, structural design was evaluated by using code check and heat transfer analysis to verify the structural design of PFP for an offshore plant that can be installed in the North Sea area. The three - dimensional finite element analysis model of PFP was created and the results of structural stress and deformation were derived using finite element analysis by applying the load conditions. The structural analysis results were evaluated for strength of all structural members of PFP by interfacing with code check program. Heat transfer analysis of PFP was carried out to investigate fire-proofing characteristics against fire accidents. The design integrity of PFP was evaluated from the results of strength evaluation and heat transfer characteristics of structural members.
모듈 선체형 삼동 폰툰 보트의 구조설계 민감도 평가와 근사 최적화 해석
최보엽 ( Bo-youp Choi ),손창련 ( Chang-ryeon Son ),손준식 ( Joon-sik Son ),박민호 ( Min-ho Park ),송창용 ( Chang-yong Song ) 한국산업융합학회 2023 한국산업융합학회 논문집 Vol.26 No.6
Recently, domestic leisure boats have been actively researching eco-friendly product development to enter the global market. Since the hulls of existing leisure boats are mainly made of fiber reinforced plastic (FRP) or aluminum, design techniques for securing structural safety by applying related materials have been mainly studied. In this study, an initial structural design safety assessment of a trimaran pontoon leisure boat with a modular hull structure and eco-friendly high-density polyethylene (HDPE) material was conducted, and sensitivity evaluation and optimization analysis for lightweight design were performed. The initial structural design safety assessment was carried out by creating a finite element analysis model and applying the loading conditions specified in the ship classification regulation to check whether the specified allowable stresses are satisfied. For the sensitivity evaluation, the influence of stress and weight of each hull structural member was evaluated using the orthogonal array design of experiments method, and an approximate model based on the response surface method was generated using the results of the design of experiments. The optimization analysis set the thickness of the hull structural members as the design variable and considered the optimal design formulation to minimize the weight while satisfying the allowable stress. The algorithm of the optimization analysis applied the Gradient-population Based Optimizer (GBO) to improve the accuracy of the optimal solution convergence while reducing the numerical cost. Through this study, the optimal design of a newly developed eco-friendly trimaran pontoon leisure boat with a weight reduction of 10% was presented.