Cochlear partition stiffness—a composite beam model
| Autor: | S. Raynor, P. Allaire, M. Billone |
|---|---|
| Rok vydání: | 1974 |
| Předmět: |
musculoskeletal diseases
animal structures Materials science Acoustics and Ultrasonics Quantitative Biology::Tissues and Organs Acoustics Physics::Medical Physics macromolecular substances Models Biological Computer Science::Robotics Arts and Humanities (miscellaneous) medicine Humans Partition (number theory) technology industry and agriculture Stiffness Flexural rigidity Mechanics equipment and supplies Cochlea Nonlinear system Basilar membrane Amplitude Dynamic loading Bending stiffness medicine.symptom |
| Zdroj: | The Journal of the Acoustical Society of America. 55:1252-1258 |
| ISSN: | 0001-4966 |
| DOI: | 10.1121/1.1914693 |
| Popis: | A mathematical model of the human cochlear partition is developed to investigate the partition's stiffness. To date, no experiment has been performed on the partition to determine the difference between the dynamic and the statically measured stiffness. Nonlinearities observed in the partition's dynamic motions and dynamic stiffness measurements on bone and muscle tissue indicate that previous investigations of the cochlear partitions's stiffness may not be adequate. In this study the cochlear partition is modeled by a series of composite beams whose stiffness is due to linear bending rigidity at normal amplitudes of motion. At larger amplitudes (in the nonlinear range near the threshold of pain), the model's stiffness is increased, owing to the nonlinear stretching of the basilar membrane. The model also includes the increase in stiffness, above the static stiffness, due to dynamic loading, as observed in the studies of bone and muscle tissue. The dynamic cochlear partition stiffness predicted by this mo... |
| Databáze: | OpenAIRE |
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