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VERTICAL MOTIONS DAMPING MODEL TEST OF A LIFEBOAT LOWERED ONTO A FLAT SEA SURFACE

Abstract

The article presents the experiment’s results of the lifeboat model lowered with an initial speed and then released to fall onto a flat water surface. The purpose of the research is to determine the trajectory of the vertical boat motion and describe it with a mathematical model. This is closely related to determining the damping factor since the vertical motion is damped and the lifeboat gets balanced and stops moving after some time. The procedure of selecting parameters in the mathematical model to adjust to the results of the experiment was described in details. The summary describes the imperfections of the presented damping model and their probable causes.

Keywords:

damping, dynamics, differential equations, lowering a lifeboat, numerical simulations

Details

Issue
Vol. 25 No. S1(97) (2018)
Section
Latest Articles
Published
07-06-2018
DOI:
https://doi.org/10.2478/pomr-2018-0022
Licencja:
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Open Access License

This journal provides immediate open access to its content under the Creative Commons BY 4.0 license. Authors who publish with this journal retain all copyrights and agree to the terms of the CC BY 4.0 license.

 

Authors

  • Aleksander Kniat

    Gdańsk University of Technology
  • Paweł Dymarski

    Gdańsk University of Technology

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