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Analysis of performance indices for simulated skeleton descents

Analysis of performance indices for simulated skeleton descents
Analysis of performance indices for simulated skeleton descents
In the winter Olympic sport of Skeleton, sliders sprint and load themselves onto the sled facing head forwards. The slider uses primarily their shoulders and torso to apply control to the direction of the sled as it progressively gains speed during its descent. These small control course keeping maneuvers alongside more severe use of toe tapping onto the ice will help determine the eventual trajectory of the sled. It is therefore of interest to consider for a possible trajectory what control actions will determine the fastest descent time and in particular what metrics should be examined. In this paper a three degree-of-freedom simulation has been developed to analyse the influence of different control strategies on the descent time of a bob-skeleton. A proportional-derivative (PD) controller is used to steer the simulation down a representation of the Igls ice-track. Parametric variations of the simulation's performance were analysed and compared to identify possible correlations for controllers assist the design of an optimal controller. Analysis of the results have identified positive correlations between descent time, transverse distance travelled and energy dissipation establishing that the fastest descent time is achieved by minimising the energy lost through the descent.
712-717
Gong, Chen
dc4ac2ac-c955-4f25-bc07-167a851cd054
Phillips, Christopher
f6aeb956-83fc-4cf2-b0b1-234405f489fd
Turnock, Stephen
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Rogers, Eric
611b1de0-c505-472e-a03f-c5294c63bb72
Gong, Chen
dc4ac2ac-c955-4f25-bc07-167a851cd054
Phillips, Christopher
f6aeb956-83fc-4cf2-b0b1-234405f489fd
Turnock, Stephen
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Rogers, Eric
611b1de0-c505-472e-a03f-c5294c63bb72

Gong, Chen, Phillips, Christopher, Turnock, Stephen and Rogers, Eric (2016) Analysis of performance indices for simulated skeleton descents. [in special issue: The Engineering of SPORT 11] Procedia Engineering, 147, 712-717. (doi:10.1016/j.proeng.2016.06.253).

Record type: Article

Abstract

In the winter Olympic sport of Skeleton, sliders sprint and load themselves onto the sled facing head forwards. The slider uses primarily their shoulders and torso to apply control to the direction of the sled as it progressively gains speed during its descent. These small control course keeping maneuvers alongside more severe use of toe tapping onto the ice will help determine the eventual trajectory of the sled. It is therefore of interest to consider for a possible trajectory what control actions will determine the fastest descent time and in particular what metrics should be examined. In this paper a three degree-of-freedom simulation has been developed to analyse the influence of different control strategies on the descent time of a bob-skeleton. A proportional-derivative (PD) controller is used to steer the simulation down a representation of the Igls ice-track. Parametric variations of the simulation's performance were analysed and compared to identify possible correlations for controllers assist the design of an optimal controller. Analysis of the results have identified positive correlations between descent time, transverse distance travelled and energy dissipation establishing that the fastest descent time is achieved by minimising the energy lost through the descent.

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Analysis of Performance Indices for Simulated Skeleton Descents.pdf - Version of Record
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More information

Accepted/In Press date: 2 June 2016
e-pub ahead of print date: 9 July 2016
Additional Information: 11th conference of the International Sports Engineering Association, ISEA 2016
Venue - Dates: ISEA2016, 2016-06-01
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 397907
URI: http://eprints.soton.ac.uk/id/eprint/397907
PURE UUID: 98e87628-65e2-437a-bcc0-0f155d819bf4
ORCID for Stephen Turnock: ORCID iD orcid.org/0000-0001-6288-0400
ORCID for Eric Rogers: ORCID iD orcid.org/0000-0003-0179-9398

Catalogue record

Date deposited: 11 Jul 2016 10:52
Last modified: 07 Oct 2020 01:34

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