Journal of Marine Science and Technology

Journal of Marine Science and Technology

Selection the optimum dimensions for flywheel of Anti-Rolling Gyro which installation on high speed craft

Document Type : Original Manuscript

Authors
Mousa Damavandi
Rouzbeh Shafaghat
Morteza Dardel
Faculty of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, Iran.
10.22113/jmst.2017.42317
Abstract
Anti-Rolling Gyro (ARG) is one of the useful equipment which is used for enhancing stability of vessels. ARG produces a moment against wave torque and reduces undesirable vessel roll based on gyroscopic concepts and using flywheel moment. The first step in designing ARG is flywheel design which exerts appropriate moment in order to reduce rolling of vessel with attention to the sea wave moments and angular velocity of the waves. According to direct relation of righting moment of gyro with mass moment inertia, in order to increase righting moment, it should be chosen a flywheel with high moment inertia, in the contrary, increasing moment inertia also leads to increasing mass of flywheel. In this study, with regards to conditions of waves of Persian Gulf, for optimizing of mass and moment inertia, non-dominated sorting multi objective genetic algorithm (NAGA-II) is used, in a way that minimum mass and maximum moment inertia will be gained. Finally, the dimension of all the flywheel optimal options are demonstrated in the form of pareto diagram, in order that performance conditions regarding parameters including mass and the number of gyros in a vessel based on gained results, are being investigated.
Keywords
"Anti-Rolling Gyro"
"Flywheel"
"Mass Moment Inertia"
"Multi-objective Optimization"
"Genetic algorithm"

Subjects

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Journal of Marine Science and Technology
Volume 20, Issue 1 - Serial Number 1
Autumn 2021
Pages 109-124

  • Receive Date 09 January 2015
  • Revise Date 24 January 2017
  • Accept Date 25 January 2017
  • Publish Date 22 May 2021