Research Article
Modal Analysis of Adult Human Spine Vertebrae Using Numerical Method
@INPROCEEDINGS{10.1007/978-3-030-80618-7_18, author={Mekete Mulualem}, title={Modal Analysis of Adult Human Spine Vertebrae Using Numerical Method}, proceedings={Advances of Science and Technology. 8th EAI International Conference, ICAST 2020, Bahir Dar, Ethiopia, October 2-4, 2020, Proceedings, Part II}, proceedings_a={ICAST PART 2}, year={2021}, month={7}, keywords={Human spine Mode shape Resonant state Fundamental frequency}, doi={10.1007/978-3-030-80618-7_18} }- Mekete Mulualem
Year: 2021
Modal Analysis of Adult Human Spine Vertebrae Using Numerical Method
ICAST PART 2
Springer
DOI: 10.1007/978-3-030-80618-7_18
Abstract
Human bodies are often exposed to vibrations when they are in the working place or vehicles. The low back pain and the degenerative diseases of the spine are more frequently found in humans exposed to vibration. In order to minimize these diseases, the occurrence of resonance conditions in the human spine body should be prevented; the determination of the natural frequency of each vertebra of the spine is the most required parameter to satisfy no occurrence of a resonant condition. This study aimed to determine the specific fundamental frequencies of the human spine vertebrae. In this paper, a detailed three-dimensional geometrical model of seated human spine vertebral is developed in Solidworks software based on actual vertebral geometry and the finite element model modal analysis is done by using ANSYS software. After FE modal analysis, the resonant frequencies of each vertebra of cervical (7), thoracic (12) and lumber (5) of the adult human spine are obtained and the fundamental frequencies of the vertebrae versus span of the spine are plotted. The result shows that the fundamental frequencies of all vertebra of the spine are different and the mini-mum fundamental frequency is 6.023 Hz for the thoracic spine (T4). In addition, it is revealed that for the whole spine vertebrae the fundamental frequency range is 6–19 Hz. The spine resonant condition may occur at any of this frequency range even though the fundamental frequency of the spine is 6.023 Hz.
