Journal of Navigation and Port Research (한국항해항만학회지)

Korean Institute of Navigation and Port Research (한국항해항만학회)
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Development of Apparatus for Pure Roll-Motion Test of Underwater Vehicles

수중운동체의 순수 횡동요 시험 기구 개발

  • Kim, Dong-Hwi (Department of Naval Architecture and Ocean Engineering, Pusan National University) ;
  • Baek, Hyung-Min (Department of Naval Architecture and Ocean Engineering, Pusan National University) ;
  • Lee, Seung-Keon (Department of Naval Architecture and Ocean Engineering, Pusan National University) ;
  • Kim, Eun-Soo (Department of Naval Architecture and Ocean Engineering, Pusan National University)
  • 김동휘 (부산대학교 조선.해양공학과 대학원) ;
  • 백형민 (부산대학교 조선.해양공학과 대학원) ;
  • 이승건 (부산대학교 조선.해양공학과) ;
  • 김은수 (부산대학교 조선.해양공학과)
  • Received : 2021.01.25
  • Accepted : 2021.02.19
  • Published : 2021.02.28
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Abstract

Hydrodynamic coefficients should be accurately estimated to predict the maneuverability of underwater vehicles. Various captive model tests have been performed as part of estimation methods for these coefficients. Estimating hydrodynamic coefficients related to roll motion is important because underwater vehicles are sensitive to changes of roll moment. In this research, a pure roll motion equipment was newly designed to simply estimate hydrodynamic coefficients with respect to roll motion. Roll motion was implemented through a brief mechanical mechanism. The principle of operation, application process, and system identification of the equipment are described. An analysis method of the pure roll test is also suggested. Repeated tests of the newly equipment were carried out to check its reproducibility.

동유체력 미계수는 수중운동체의 조종성능을 예측하기 위해 정확히 추정되어져야 하며 추정 방법의 일환으로 다양한 모형시험이 수행되어오고 있다. 수중운동체는 횡동요 모멘트 변화에 민감하므로 관련 동유체력 미계수를 추정하는 작업은 정확히 수행되어져야 한다. 본 연구에서는 횡동요 운동과 관련한 동유체력 미계수를 간단하게 추정할 수 있는 순수 횡동요 장비를 새롭게 설계하였다. 횡동요 운동은 간단한 기계적 메커니즘을 통하여 구현하였으며, 메커니즘의 원리와 적용과정 그리고 설계한 장비의 system identification에 대해 기술하였다. 또한 순수 횡동요 시험의 해석방법을 제시하고 설계한 장비에 대해 반복시험을 거쳐 결과의 재현성을 확인하였다.

Keywords

Acknowledgement

본 연구는 부산대학교 기본연구지원사업(2년)에 의하여 연구되었습니다.

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