Limiting Performance Analysis of Underwater Shock Isolation of a System with Biodynamic Response Using Genetic Algorithm

Biodynamic response of shipboard crew to underwater shock is of a major concern to navies. An underwater shock can produce very high accelerations, resulting in severe human injuries aboard a battleship. Protection of human bodies from underwater shock is implemented by installing onboard isolators....

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Main Authors: Z. Zong, K.Y. Lam, Tessa Gan
Format: Article
Language:English
Published: Wiley 2000-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2000/679157
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author Z. Zong
K.Y. Lam
Tessa Gan
author_facet Z. Zong
K.Y. Lam
Tessa Gan
author_sort Z. Zong
collection DOAJ
description Biodynamic response of shipboard crew to underwater shock is of a major concern to navies. An underwater shock can produce very high accelerations, resulting in severe human injuries aboard a battleship. Protection of human bodies from underwater shock is implemented by installing onboard isolators. In this paper, the optimal underwater shock isolation to protect human bodies is studied. A simple shock-structure-isolator-human interaction model is first constructed. The model incorporates the effect of fluid-structure interaction, biodynamic response of human body, isolator influence. Based on this model, the optimum shock isolation is then formulated. The performance index and restriction are defined. Thirdly, GA (genetic algorithm) is employed to solve the formulated optimization problem. GA is a powerful evolutionary optimization scheme suitable for large-scale and multi-variable optimization problems that are otherwise hard to be solved by conventional methods. A brief introduction to GA is given in the paper. Finally, the method is applied to an example problem and the limiting performance characteristic is obtained.
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institution Kabale University
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spelling doaj-art-045585b251f8496a8fae9e0e2c6a7dfc2025-02-03T05:47:13ZengWileyShock and Vibration1070-96221875-92032000-01-017532133210.1155/2000/679157Limiting Performance Analysis of Underwater Shock Isolation of a System with Biodynamic Response Using Genetic AlgorithmZ. Zong0K.Y. Lam1Tessa Gan2Institute of High Performance Computing, 89C, Science Park Drive 02-11/12, The Rutherford, Singapore Science Park I, Singapore 118261, SingaporeInstitute of High Performance Computing, 89C, Science Park Drive 02-11/12, The Rutherford, Singapore Science Park I, Singapore 118261, SingaporeNaval Logistics Department, MINDEF Building, Gombak Drive, Singapore 669645, SingaporeBiodynamic response of shipboard crew to underwater shock is of a major concern to navies. An underwater shock can produce very high accelerations, resulting in severe human injuries aboard a battleship. Protection of human bodies from underwater shock is implemented by installing onboard isolators. In this paper, the optimal underwater shock isolation to protect human bodies is studied. A simple shock-structure-isolator-human interaction model is first constructed. The model incorporates the effect of fluid-structure interaction, biodynamic response of human body, isolator influence. Based on this model, the optimum shock isolation is then formulated. The performance index and restriction are defined. Thirdly, GA (genetic algorithm) is employed to solve the formulated optimization problem. GA is a powerful evolutionary optimization scheme suitable for large-scale and multi-variable optimization problems that are otherwise hard to be solved by conventional methods. A brief introduction to GA is given in the paper. Finally, the method is applied to an example problem and the limiting performance characteristic is obtained.http://dx.doi.org/10.1155/2000/679157
spellingShingle Z. Zong
K.Y. Lam
Tessa Gan
Limiting Performance Analysis of Underwater Shock Isolation of a System with Biodynamic Response Using Genetic Algorithm
Shock and Vibration
title Limiting Performance Analysis of Underwater Shock Isolation of a System with Biodynamic Response Using Genetic Algorithm
title_full Limiting Performance Analysis of Underwater Shock Isolation of a System with Biodynamic Response Using Genetic Algorithm
title_fullStr Limiting Performance Analysis of Underwater Shock Isolation of a System with Biodynamic Response Using Genetic Algorithm
title_full_unstemmed Limiting Performance Analysis of Underwater Shock Isolation of a System with Biodynamic Response Using Genetic Algorithm
title_short Limiting Performance Analysis of Underwater Shock Isolation of a System with Biodynamic Response Using Genetic Algorithm
title_sort limiting performance analysis of underwater shock isolation of a system with biodynamic response using genetic algorithm
url http://dx.doi.org/10.1155/2000/679157
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AT kylam limitingperformanceanalysisofunderwatershockisolationofasystemwithbiodynamicresponseusinggeneticalgorithm
AT tessagan limitingperformanceanalysisofunderwatershockisolationofasystemwithbiodynamicresponseusinggeneticalgorithm