Original Paper

Ship mathematical model with POD propellers applied in marine simulator

  • ZHANG Xiu-feng ,
  • YIN Yong ,
  • SUN Xiao-feng ,
  • JIN Yi-cheng
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  • Navigation College ,Dalian Maritime University,Dalian 116026, China

Received date: 2012-12-27

  Online published: 2023-05-25

Abstract

MMG separation modeling idea is used to establish a semi-submersible ship motion mathematical model of four degrees of freedom with pod equipped, and the regression formula is used to estimate the thrust and torque of the POD propeller, and the empirical formulas are used to estimate the wake fraction and thrust deduction. By handling engine throttles to control the POD propeller speed and propeller rotation angle of the hardware signal transmission to the ship mathematical model module, the integral ship motion equations are solved by using fourth order Runge Kutta method, and the real time ship motion situation is obtained. Then the real time ship motion situation is transfered to the other modules of marine simulator so as to achieve human computer interaction. Semi-submersible heavy lift vessel "TaiAnKou" is simulated, and the mathematical model of POD propellers and ship’s mathematical model are established. The uncertainty between simulating and experimental results is less than 20%, which can meet the requirements of navigation training and engineering.

Cite this article

ZHANG Xiu-feng , YIN Yong , SUN Xiao-feng , JIN Yi-cheng . Ship mathematical model with POD propellers applied in marine simulator[J]. Journal of Dalian Maritime University, 2013 , 39(2) : 9 -12 . DOI: 10.16411/j.cnki.issn1006-7736.2013.02.029

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