Design and characterization of an ocean wave powered lifejacket using 2DOF floating boards

Jia Mi, Lin Xu, Yaling Yang, Lei Zuo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

Lifejacket is an indispensable life-saving equipment for ships and airplanes. Traditional lifejacket is designed to prevent human from drowning. However, the water temperature is usually low, especially in winter, which significantly reduces the human body temperature and leads to death. Meanwhile, power is critical for drowning people to use emergency communication equipment. This paper proposed an ocean wave powered lifejacket using 2DOF floating boards to provide both buoyance and electricity for drowning people. Hence, they can use this continuous electric power to keep key body warm and send distress signal. This lifejacket is featured with two 2DOF floating boards and the mechanical motion rectifier (MMR) can convert the 2-DOF motions to the unidirectional rotation of generator. The design principle is illustrated and the dynamic modelling for the 2-DOF motions has been analyzed. Bench test and lake test have been conducted to validate the design concept.

Original languageEnglish
Title of host publicationActive and Passive Smart Structures and Integrated Systems XII
EditorsJae-Hung Han, Alper Erturk
ISBN (Electronic)9781510616868
DOIs
StatePublished - 2018
EventActive and Passive Smart Structures and Integrated Systems XII 2018 - Denver, United States
Duration: 5 Mar 20188 Mar 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10595
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceActive and Passive Smart Structures and Integrated Systems XII 2018
Country/TerritoryUnited States
CityDenver
Period5/03/188/03/18

Keywords

  • 2DOF floating board
  • energy harvesting
  • mechanical motion rectifier
  • ocean wave powered lifejacket
  • rescue equipment

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