Next Article in Journal
You Only Attack Once: Single-Step DeepFool Algorithm
Next Article in Special Issue
A New Approach to the Parameterization of Streamlined Surfaces of the Left Heart and Aorta, Taking into Account the Twisted Structure of Blood Flow
Previous Article in Journal
Temperature Effect on Stability of Tunnel Face Under Unsaturated Seepage Condition
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Applied Sciences
Volume 15
Issue 1
10.3390/app15010301
applsci-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Sound-Induced Round Window Vibration—Experiment and Numerical Simulations of Energy Transfer Through the Cochlea of the Human Ear

by
Robert Zablotni
1,
Sylwester Tudruj
1,
Jaroslaw Latalski
1,
Marcin Szymanski
2,
Andrzej Kucharski
2,
Grzegorz Zając
3,* and
Rafał Rusinek
1
1
Department of Applied Mechanics, Mechanical Engineering Faculty, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland
2
Department of Otolaryngology Head and Neck Surgery, Medical University of Lublin, Jaczewskiego 8, 20-090 Lublin, Poland
3
Department of Power Engineering and Transportation, Faculty of Production Engineering, University of Life Sciences in Lublin, Gleboka 28, 20-612 Lublin, Poland
*
Author to whom correspondence should be addressed.
Appl. Sci. 2025, 15(1), 301; https://doi.org/10.3390/app15010301
Submission received: 25 October 2024 / Revised: 13 December 2024 / Accepted: 29 December 2024 / Published: 31 December 2024
(This article belongs to the Special Issue Numerical Simulation in Biomechanics and Biomedical Engineering-3rd Edition)
Browse Figures
Versions Notes

Abstract

This study investigates the dynamic properties of the human middle ear and the energy transfer phenomena between the stapes footplate (SF) and the round window membrane (RWM) under sound stimulation. A series of laboratory tests were conducted, and a numerical model of the system was prepared. During the experiments, vibrations in human temporal bones were recorded using a Laser Doppler Vibrometer (LDV), and the frequency response functions (FRFs) of the RWM and SF footplate were computed. Key resonances were identified, with notable differences in vibration amplitude depending on whether the artificial external ear canal was left open or closed. To evaluate the amplification of acoustic waves within the cochlea, the authors proposed a novel index defined as the ratio of the FRF of the RWM and SF, respectively. The performed computations showed that signal amplification is particularly noticeable in the frequency range from 1 to 2 kHz. Subsequently, a simplified computational fluid dynamics (CFD) model of the cochlea was developed to simulate internal pressure distribution within the scala vestibuli (SV) and scala tympani (ST) spaces. The numerical computations of acoustic signal amplification showed good agreement with the experimental data, particularly at the frequencies of 1 and 2 kHz. These findings provide new insights into cochlear acoustics and offer a potential tool for evaluating pathological disorders and designing prosthetic devices.
Keywords: human inner ear; round window vibration; cochlea; energy transfer phenomenon human inner ear; round window vibration; cochlea; energy transfer phenomenon

Share and Cite

MDPI and ACS Style

Zablotni, R.; Tudruj, S.; Latalski, J.; Szymanski, M.; Kucharski, A.; Zając, G.; Rusinek, R. Sound-Induced Round Window Vibration—Experiment and Numerical Simulations of Energy Transfer Through the Cochlea of the Human Ear. Appl. Sci. 2025, 15, 301. https://doi.org/10.3390/app15010301

AMA Style

Zablotni R, Tudruj S, Latalski J, Szymanski M, Kucharski A, Zając G, Rusinek R. Sound-Induced Round Window Vibration—Experiment and Numerical Simulations of Energy Transfer Through the Cochlea of the Human Ear. Applied Sciences. 2025; 15(1):301. https://doi.org/10.3390/app15010301

Chicago/Turabian Style

Zablotni, Robert, Sylwester Tudruj, Jaroslaw Latalski, Marcin Szymanski, Andrzej Kucharski, Grzegorz Zając, and Rafał Rusinek. 2025. "Sound-Induced Round Window Vibration—Experiment and Numerical Simulations of Energy Transfer Through the Cochlea of the Human Ear" Applied Sciences 15, no. 1: 301. https://doi.org/10.3390/app15010301

APA Style

Zablotni, R., Tudruj, S., Latalski, J., Szymanski, M., Kucharski, A., Zając, G., & Rusinek, R. (2025). Sound-Induced Round Window Vibration—Experiment and Numerical Simulations of Energy Transfer Through the Cochlea of the Human Ear. Applied Sciences, 15(1), 301. https://doi.org/10.3390/app15010301

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop