Modeling a Viscoelastic Gymnastics Landing Mat During Impact.
From: School of Sport and Exercise Sciences, Loughborough University, Loughborough, Leics., UK.
Journal of applied biomechanics
- Publish Date: May 2006
- ISSN: 1065-8483
- Volume: 22
- Issue: 2
- Pages: 103-11
- Medium: Print
- Language: English
- Citation (JAMA): Mills Chris, Pain Matthew T G, Yeadon Maurice R, et al. Modeling a Viscoelastic Gymnastics Landing Mat During Impact.. May 2006;22:103-11
Abstract
Landing mats that can undergo a large amount of area deformation are now essential for the safe completion of landings in gymnastics. The objective of this study was to develop an analytical model of a landing mat that reproduces the key characteristics of the mat-ground force during impact with minimal simulation run time. A force plate and two high-speed video cameras were used to record the mat deformation during vertical drop testing of a 24-kg impactor. Four increasingly complex point mass spring-damper models, from a single mass spring-damper system, Model 1, to a 3-layer mass spring-damper system, Model 4, were constructed using Matlab to model the mat’s behavior during impact. A fifth model composed of a 3-layer mass spring-damper system was developed using visual Nastran 4D. The results showed that Models 4 and 5 were able to match the loading phase of the impact with simulation times of less than 1 second for Model 4 and 28 seconds for Model 5. Both Models 4 and 5 successfully reproduced the key force-time characteristics of the mat-ground interface, such as peak forces, time of peak forces, interpeak minima and initial rates of loading, and could be incorporated into a gymnast-mat model.
Mesh Headings (Keywords): Biomechanics, Computer Simulation, Equipment Design, Gymnastics, Humans, Male, Models, Biological, Sports Equipment, Video Recording
Check for Full Text / PubMed Unique Identifier (PMID): 16871001
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