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Ship Trajectory Generator under the Interference of Wind, Current and Waves.

Xian Ding1, Hongwei Bian1, Heng Ma1

  • 1The Department of Navigation Engineering, Naval University of Engineering, Wuhan 430033, China.

Sensors (Basel, Switzerland)
|December 11, 2022
PubMed
Summary

This study introduces an improved ship trajectory generator that enhances motion parameter accuracy. It effectively accounts for wind, current, and wave interference, leading to more precise ship navigation simulations.

Keywords:
ANFISinertial navigation systemship motiontrajectory generatorwind, current and wave

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Area of Science:

  • Naval Architecture and Marine Engineering
  • Ocean Engineering
  • Control Systems

Background:

  • Typical ship trajectory generators lack accuracy and do not account for environmental forces.
  • Accurate prediction of ship motion is crucial for safe and efficient maritime operations.

Purpose of the Study:

  • To develop a novel ship trajectory generator with improved accuracy.
  • To incorporate the effects of wind, current, and wave interference into ship motion modeling.
  • To enhance the precision of ship motion parameters under various environmental conditions.

Main Methods:

  • Analysis of ship attitude and speed changes under different motion states.
  • Construction of time-varying, non-uniform wind, current, and wave fields.
  • Application of empirical formulas for force and moment analysis.
  • Design of an adaptive neuro fuzzy inference system (ANFIS) for environmental interference modeling.
  • Training and testing ANFIS using measured data to determine fuzzy rules.

Main Results:

  • Significant improvement in the accuracy of main motion parameters compared to typical generators.
  • Quantification of wind, current, and wave interference effects on ship motion.
  • Further enhancement of motion parameter accuracy after superimposing environmental interference.
  • Validation of the model by comparing simulated parameters with measured data.

Conclusions:

  • The developed ship trajectory generator offers superior accuracy in predicting motion parameters.
  • The ANFIS-based approach effectively models and compensates for wind, current, and wave interference.
  • This enhanced model provides a more realistic simulation of ship dynamics in complex marine environments.