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|Title: ||Computer aided modelling of the human spine|
|Authors: ||Case, Keith|
Acar, B. Serpil
Porter, J. Mark
|Issue Date: ||1998|
|Publisher: ||© Professional Engineering Publishing|
|Citation: ||CASE, K. ... et al, 1998. Computer aided modelling of the human spine. IN: Baines, R.W., Taleb-Bendiab, A. and Zhao, Z. (eds). Advances in Manufacturing Technology XII : proceedings of the Fourteenth National Conference on Manufacturing Research, University of Derby, UK, 7-9 September 1998. Bury St Edmonds: Professional Engineering Publishing, pp. 369 - 374|
|Abstract: ||The human spine is the main structure to support human body weight and external loads, to
allow the torso to reach to a variety of positions and to protect the spinal nervous system.
Lumbar back pain and disorders may be related to spinal curvature and disc pressure, and it is
an ultimate objective of the work reported here to include consideration of these issues in
computer aided ergonomics design systems for evaluating a wide range of situations including
manual handling and car seat design.
Several methods from structural analysis have previously been used to model the human
spine, principally lever and beam structures, but these have frequently shown discrepancies
when compared with experimental data. As an alternative, an arch representation for the spine
is considered here and allows the establishment of a criterion for the failure of the spine that
may be useful in determining absolute maximum loading conditions. However, the main
interest is in sub-maximal loading conditions where damage or discomfort are the concerns
rather than fracture. It is proposed that the location of the thrust line in relation to the centre
line of the spine is a useful predictor, and optimisation techniques have been developed to
find the 'best-fitting' thrust line for the statically indeterminate structure.
Further work is concerned with adding muscle and ligament forces to the loading system
of the model, extension of the 2D model into 3D, validation against experimental data and
integration with the SAMMIE computer aided ergonomics design system.|
|Description: ||This conference paper is closed access.|
|Appears in Collections:||Closed Access (Mechanical, Electrical and Manufacturing Engineering)|
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