The human middle ear includes the tympanic membrane and the ossicular chain. The finite element method is capable of representing the complex geometry and the material orthotropy of the tympanic membrane. On the contrary, the ossicles can be considered as rigid bodies and a multi-body approach can be adopted. In the present study a multi-body model of the ossicular chain and other structures (joints, ligaments and muscle tendons) of the middle ear was developed and combined with a finite element model of the tympanic membrane through a feedback control strategy. An optimization procedure was used to calibrate unspecified or uncertain parameters with the aim of reproducing ascertained experimental literature data. The sensitivity of the calibrated models to both tympanic membrane and ossicular chain parameters was investigated. Material, geometrical and inertial parameters were considered, in particular those whose values were most widespread in the literature.
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ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis
July 2–4, 2012
Nantes, France
Conference Sponsors:
- International
ISBN:
978-0-7918-4487-8
PROCEEDINGS PAPER
A Sensitivity Study on a Hybrid FE/MB Human Middle Ear Model
Gaia Volandri,
Gaia Volandri
University of Pisa, Pisa, Italy
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Francesca Di Puccio,
Francesca Di Puccio
University of Pisa, Pisa, Italy
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Paola Forte
Paola Forte
University of Pisa, Pisa, Italy
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Gaia Volandri
University of Pisa, Pisa, Italy
Francesca Di Puccio
University of Pisa, Pisa, Italy
Paola Forte
University of Pisa, Pisa, Italy
Paper No:
ESDA2012-82326, pp. 217-225; 9 pages
Published Online:
August 12, 2013
Citation
Volandri, G, Di Puccio, F, & Forte, P. "A Sensitivity Study on a Hybrid FE/MB Human Middle Ear Model." Proceedings of the ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis. Volume 4: Advanced Manufacturing Processes; Biomedical Engineering; Multiscale Mechanics of Biological Tissues; Sciences, Engineering and Education; Multiphysics; Emerging Technologies for Inspection and Reverse Engineering; Advanced Materials and Tribology. Nantes, France. July 2–4, 2012. pp. 217-225. ASME. https://doi.org/10.1115/ESDA2012-82326
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