Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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Prediction of Ship Resistance Performance Based on the Convolutional Neural Network With Voxelization

합성곱 신경망과 복셀화를 활용한 선박 저항 성능 예측

  • Jongseo Park (Department of Naval Architecture and Ocean Systems Engineering, Korea Maritime and Ocean University) ;
  • Minjoo Choi (Department of Naval Architecture and Ocean Systems Engineering, Korea Maritime and Ocean University) ;
  • Gisu Song (Department of Naval Architecture and Ocean Systems Engineering, Korea Maritime and Ocean University)
  • 박종서 (한국해양대학교 조선해양시스템공학부) ;
  • 최민주 (한국해양대학교 조선해양시스템공학부) ;
  • 송지수 (한국해양대학교 조선해양시스템공학부)
  • Received : 2022.12.21
  • Accepted : 2023.03.15
  • Published : 2023.04.20
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Abstract

The prediction of ship resistance performance is typically obtained by Computational Fluid Dynamics (CFD) simulations or model tests in towing tank. However, these methods are both costly and time-consuming, so hull-form designers use statistical methods for a quick feed-back during the early design stage. It is well known that results from statistical methods are often less accurate compared to those from CFD simulations or model tests. To overcome this problem, this study suggests a new approach using a Convolution Neural Network (CNN) with voxelized hull-form data. By converting the original Computer Aided Design (CAD) data into three dimensional voxels, the CNN is able to abstract the hull-form data, focusing only on important features. For the verification, suggested method in this study was compared to a parametric method that uses hull parameters such as length overall and block coefficient as inputs. The results showed that the use of voxelized data significantly improves resistance performance prediction accuracy, compared to the parametric approach.

Keywords

Acknowledgement

이 논문은 2022년도 정부(교육부)의 재원으로 한국연구재단 기초연구사업의 지원을 받아 수행된 연구임(No.2020R1G1A1014172).

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