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	Nonlinear formulationof airfoil vibration for aero-hydroelastic calculations Horáček, Jaromír In the most of well known publications on aeroelasticity it is not possible to find any derivation of the airfoil section vibration for large amplitudes. The contribution presents fundamental nonlinear equations of motion usable in calculations of aeroelastic instability boundaries of airfoils and nonlinear boundary conditions of impermeability on the airfoil surface vibrating in ideal flowing fluid. Detailed record
	Numerical simulation of pronunciation of vowels based on FE models of human supraglottal acoustic spaces Krampera, P. ; Horáček, Jaromír ; Dedouch, K. ; Vampola, T. Aproximate finite element models of acoustic spaces corresponding to the human vocal tract for English vowels /a/ and /i/, created according to the geometrical data published in the literature, are used for the numerical simulations. The pronunciation of the vowels /a/ and /i/ is simulated using transient analysis for the FE models. The pulse excitation of the vocal tract is realised by the time dependent displacement of a small circular plate moving at the position of the vocal folds. Detailed record
	Acoustic modal analysis of male vocal tract for Czech vowels Dedouch, K. ; Horáček, Jaromír ; Vampola, T. ; Švec, J. G. ; Kršek, P. ; Havlík, R. Acoustic frequency-modal characteristics of six finite element models of a male vocal tract are presented and analysed. The FE models correspond to the vocal tract geometries for the Czech vowels /a/, /e/, /i/, /o/, /u/ and /y/ were obtained using the magnetic resonance imaging technique. The computed results of the acoustaic modal analysis are in a reasonable agreement with the data on formants known form the Czech phonetic literature. Detailed record
	Modelling of brain tissue influence on wave propagation i human skull after impact loading Pešek, Luděk ; Horáček, Jaromír ; Trnka, Jan ; Veselý, Eduard The contribution deals with the analysis of wawe propagation in human skull filled by a folling which simulates the brain tissue. The results are compared with the original experimental data, which where obtained by the laser- Doppler anemometry and the double pulse holointerferometry. Detailed record
	Numerical simulations of human vocal-fold vibrations in phonation onset caused by aeroelastic instability Horáček, Jaromír ; Šidlof, P. Implementation of nonlinear aerodynamic forces in the aeroelastic model of the vocal folds enabled to simulate the oscillations of the vocal fold just after loosing the stability of the system. Results in time domain are compared with the previous solution in frequency domain. Detailed record
	Free vibration and stability of cylindrical shells in interaction with flowing fluid Horáček, Jaromír ; Zolotarev, Igor This book is the "Nonlinear Dynamics of Shells with Fluid Structure Interaction". It follows a meeting that has been held at the University of Modena and Reggio Emilia (Modena, Italy) on September 15th 2001. Detailed record
	Natural vibrations and stability of cylindrical shells in interaction with flowing fluid Horáček, Jaromír ; Zolotarev, Igor Natural frequencies and thresholds of stability of thin cylindricaal shell conveying or surrounded by flowing fluid are theoretically studied. Viscous fluid forces are modelled by the Darcy law, and effects of fluid compressibility are discussed. Particularly the effects of fluid viscosity and the type of boundary conditions at the edges of the shell on the critical flow velocities are demonstrated. Detailed record
	Shape of the human vocal folds in a defined phonation position Horáček, Jaromír ; Švec, J. ; Klepáček, I. ; Vetešník, A. ; Veselý, Jan The paper presents experimental investigation of aerodynamic shape of the vocal folds measured in a defined phonation position with excised larynges. The vocal fold vibrations were excited by airflow and monitored acoustically, by means of laser vibrometry, pressure transducers and stroboscopy techniques. Method for casting laryngeal cavities for determining the vocal fold shape was developed. By the optical topography and the electron scanning microscope the shapes of the vocal folds were analysed. Detailed record
	Finite element modeling of male vocal tract considering cleft palate Dedouch, K. ; Horáček, Jaromír ; Vampola, T. ; Černý, L. The FE models of vocal tract designed for vowel /a/ are analyzed considering the cleft palate. The first is designed using the published data, the second model corresponds to the reaal mate vocal tract designed by MRI data. Acoustic modal analysis is focused on investigation of the influence of the cleft palate on the formant frequencies. The results indicate, that after a small jump of the frequencies for a small cleft area the formant frequencies F1, F2 are influenced by the size of the cleft palate only very slightly. Detailed record
	Numerical solution of flow past an oscillating profile in a channel Honzátko, R. ; Horáček, Jaromír ; Kozel, K. The paper presents the numerical solution of 2D flow for inviscid incompressible fluid in a channel with a profile inside. The fluid flow is modified by a prescribed oscillation of the profile. The Euler equations are used for the fluid flow and the motion of the profile is given by a harmonic time varying angle of attack. Detailed record

See also: similar author names
6	HORÁČEK, Jakub
6	Horáček, Jakub
21	Horáček, Jan
1	Horáček, Jan Jiří
68	Horáček, Jaromír
12	Horáček, Jaroslav
25	Horáček, Jiří
2	Horáček, Jonáš

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