RISS 학술연구정보서비스

검색
다국어 입력

http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

변환된 중국어를 복사하여 사용하시면 됩니다.

예시)
  • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
  • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
닫기
    인기검색어 순위 펼치기

    RISS 인기검색어

      검색결과 좁혀 보기

      선택해제

      오늘 본 자료

      • 오늘 본 자료가 없습니다.
      더보기
      • 무료
      • 기관 내 무료
      • 유료
      • SCIESCOPUSKCI등재

        Design of a ship model for hydro-elastic experiments in waves

        Maron, Adolfo,Kapsenberg, Geert The Society of Naval Architects of Korea 2014 International Journal of Naval Architecture and Oc Vol.6 No.4

        Large size ships have a very flexible construction resulting in low resonance frequencies of the structural eigen-modes. This feature increases the dynamic response of the structure on short period waves (springing) and on impulsive wave loads (whipping). This dynamic response in its turn increases both the fatigue damage and the ultimate load on the structure; these aspects illustrate the importance of including the dynamic response into the design loads for these ship types. Experiments have been carried out using a segmented scaled model of a container ship in a Seakeeping Basin. This paper describes the development of the model for these experiments; the choice was made to divide the hull into six rigid segments connected with a flexible beam. In order to model the typical feature of the open structure of the containership that the shear center is well below the keel line of the vessel, the beam was built into the model as low as possible. The model was instrumented with accelerometers and rotation rate gyroscopes on each segment, relative wave height meters and pressure gauges in the bow area. The beam was instrumented with strain gauges to measure the internal loads at the position of each of the cuts. Experiments have been carried out in regular waves at different amplitudes for the same wave period and in long crested irregular waves for a matrix of wave heights and periods. The results of the experiments are compared to results of calculations with a linear model based on potential flow theory that includes the effects of the flexural modes. Some of the tests were repeated with additional links between the segments to increase the model rigidity by several orders of magnitude, in order to compare the loads between a rigid and a flexible model.

      • KCI등재

        Design of a ship model for hydro-elastic experiments in waves

        Adolfo Marón,Geert Kapsenberg 대한조선학회 2014 International Journal of Naval Architecture and Oc Vol.6 No.4

        Large size ships have a very flexible construction resulting in low resonance frequencies of the structuraleigen-modes. This feature increases the dynamic response of the structure on short period waves (springing) and onimpulsive wave loads (whipping). This dynamic response in its turn increases both the fatigue damage and the ultimateload on the structure; these aspects illustrate the importance of including the dynamic response into the design loadsfor these ship types. Experiments have been carried out using a segmented scaled model of a container ship in aSeakeeping Basin. This paper describes the development of the model for these experiments; the choice was made todivide the hull into six rigid segments connected with a flexible beam. In order to model the typical feature of the openstructure of the containership that the shear center is well below the keel line of the vessel, the beam was built into themodel as low as possible. The model was instrumented with accelerometers and rotation rate gyroscopes on eachsegment, relative wave height meters and pressure gauges in the bow area. The beam was instrumented with straingauges to measure the internal loads at the position of each of the cuts. Experiments have been carried out in regularwaves at different amplitudes for the same wave period and in long crested irregular waves for a matrix of wave heightsand periods. The results of the experiments are compared to results of calculations with a linear model based onpotential flow theory that includes the effects of the flexural modes. Some of the tests were repeated with additionallinks between the segments to increase the model rigidity by several orders of magnitude, in order to compare the loadsbetween a rigid and a flexible model.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼