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A Study on Comparison and Analysis of Motion Sickness Inquiry with MSI Calculation for Training Ship Kaya

실습선 가야호의 멀미도 조사와 MSI 계산의 비교 분석에 관한 연구

  • Han, Seung-Jae (Dept. of Naval Architecture & Marine Systems Engineering, Pukyong National University) ;
  • Ha, Young-Rok (Dept. of Naval Architecture & Ocean Engineering, Koje College) ;
  • Kim, In-Chul (Dept. of Naval Architecture & Marine Systems Engineering, Pukyong National University)
  • 한승재 (부경대학교 조선해양시스템공학과) ;
  • 하영록 (거제대학교 조선해양공학과) ;
  • 김인철 (부경대학교 조선해양시스템공학과)
  • Received : 2014.02.21
  • Accepted : 2014.08.27
  • Published : 2014.08.31

Abstract

In this paper, for better boarding performance and pleasant boarding sensitivity of the ship, comparison and analysis was performed of motion sickness questionnaire with MSI(Motion Sickness Incidence) calculation based on ship motion theory(Strip Method) due to sea condition, incident angle in main sail way, economic speed, and calculation position of the training ship Kaya of Pukyong National University. On theses works, the rougher sea conditions became, the higher total motion sickness rate was occurred. The weights of vertical acceleration and the rates of MSI were higher at the bridge and the accommodation, which were located farther from the center of gravity of the ship. And effects of the vertical acceleration of the ship were increased in rolling then in head sea. In comparison between motion sickness questionnaire with MSI calculation, when the vertical acceleration increased, the motion sickness rate increased. The location to increase vertical acceleration and the location to cause motion sickness were agreed.

본 연구에서는 선박의 우수한 운항 성능과 쾌적한 승선감의 확보를 위해, 부경대학교 실습선인 가야호를 대상으로 해상상태, 선수각 조건, 선속, 그리고 선내 위치별로 수행된 뱃멀미 발현에 관한 5차에 걸친 설문조사 결과와 선체운동해석법(Strip Method)에 기초한 수치계산을 통해서 얻은 계산결과를 비교, 분석하였다. 이를 통해 많은 수의 학생이 승선하는 실습선의 거주구역 배치에 대한 타당성 검증과 함께 항해 중 멀미도를 낮출 수 있는 침로와 선속의 결정에 도움이 될 것이다. 본 연구에 의하면 해상상태가 거칠수록 전체 멀미비율이 높게 나타났으며, 선내 위치별로는 선체의 중량중심에서 멀리 떨어져 있는 선교와 거주구역에서 수직가속도의 가중치가 높았고 멀미비율도 높게 나타났다. 그리고 선수파에 비해 횡요시 수직가속도의 가중치가 높게 나타났다. 멀미도 조사와 MSI 계산의 비교에서는 운동 수직가속도가 증가하면, 상대적으로 멀미도도 증가하고, 수직가속도가 증가하는 구역과 멀미도 발생구역이 일치하였다.

Keywords

References

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