The Effective Design of Bean Bag as a Vibroimpact Damper

The technique of a bean bag damper has been effectively applied in many engineering fields to control the vibroimpact of a structural system. In this study, the basic parameters responsible for the design of an effective bean bag: the size of beans, the mass ratio of the bean bag to the structure to...

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Main Authors: A.Q. Liu, B. Wang, Y.S. Choo, K.S. Ong
Format: Article
Language:English
Published: Wiley 2000-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2000/351576
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author A.Q. Liu
B. Wang
Y.S. Choo
K.S. Ong
author_facet A.Q. Liu
B. Wang
Y.S. Choo
K.S. Ong
author_sort A.Q. Liu
collection DOAJ
description The technique of a bean bag damper has been effectively applied in many engineering fields to control the vibroimpact of a structural system. In this study, the basic parameters responsible for the design of an effective bean bag: the size of beans, the mass ratio of the bean bag to the structure to which it is attached, the clearance distance and the position of the bag, are studied by both theoretical and experimental analyses. These will provide a better understanding of the performance of the bean bag for optimisation of damper design. It was found that reducing the size of beans would increase the exchange of momentum in the system due to the increase in the effective contact areas. Within the range of mass ratios studied, the damping performance of the damper was found to improve with higher mass ratios. There was an optimum clearance for any specific damper whereby the maximum attenuation could be achieved. The position of the bag with respect to nodes and antipodes of the primary structure determined the magnitude of attenuation attainable. Furthermore, the limitations of bean bags have been identified and a general criteria for the design of a bean bag damper has been formulated based on the study undertaken. It was shown that an appropriately configured bean bag damper was capable of reducing the amplitude of vibration by 80% to 90%.
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publishDate 2000-01-01
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series Shock and Vibration
spelling doaj-art-080e06a7ee6f4d2bbbdd4ca778f913602025-08-20T03:55:27ZengWileyShock and Vibration1070-96221875-92032000-01-017634335410.1155/2000/351576The Effective Design of Bean Bag as a Vibroimpact DamperA.Q. Liu0B. Wang1Y.S. Choo2K.S. Ong3School of Electrical & Electronic Engineering, SingaporeSchool of Mechanical and Production Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, SingaporeDepartment of Civil Engineering, National University of Singapore, Singapore 117602, SingaporeDSO National Laboratory, 20 Science Park Drive, Singapore 118230, SingaporeThe technique of a bean bag damper has been effectively applied in many engineering fields to control the vibroimpact of a structural system. In this study, the basic parameters responsible for the design of an effective bean bag: the size of beans, the mass ratio of the bean bag to the structure to which it is attached, the clearance distance and the position of the bag, are studied by both theoretical and experimental analyses. These will provide a better understanding of the performance of the bean bag for optimisation of damper design. It was found that reducing the size of beans would increase the exchange of momentum in the system due to the increase in the effective contact areas. Within the range of mass ratios studied, the damping performance of the damper was found to improve with higher mass ratios. There was an optimum clearance for any specific damper whereby the maximum attenuation could be achieved. The position of the bag with respect to nodes and antipodes of the primary structure determined the magnitude of attenuation attainable. Furthermore, the limitations of bean bags have been identified and a general criteria for the design of a bean bag damper has been formulated based on the study undertaken. It was shown that an appropriately configured bean bag damper was capable of reducing the amplitude of vibration by 80% to 90%.http://dx.doi.org/10.1155/2000/351576
spellingShingle A.Q. Liu
B. Wang
Y.S. Choo
K.S. Ong
The Effective Design of Bean Bag as a Vibroimpact Damper
Shock and Vibration
title The Effective Design of Bean Bag as a Vibroimpact Damper
title_full The Effective Design of Bean Bag as a Vibroimpact Damper
title_fullStr The Effective Design of Bean Bag as a Vibroimpact Damper
title_full_unstemmed The Effective Design of Bean Bag as a Vibroimpact Damper
title_short The Effective Design of Bean Bag as a Vibroimpact Damper
title_sort effective design of bean bag as a vibroimpact damper
url http://dx.doi.org/10.1155/2000/351576
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