Measuring and Predicting of Vibro-Acoustic Response of a Flat Plate

This seminar examines how turbulent airflow excites structural vibrations and, in turn, generates noise transmitted into enclosed spaces. An anechoic wind tunnel experiment was conducted to investigate the vibro-acoustic response of a thin square plate subjected to a turbulent boundary layer. Surface pressure fluctuations, structural accelerations, and internal acoustic fields were measured to capture the complete chain of excitation, vibration, and acoustic transmission. The study integrates external aero-acoustics, structural dynamics, and internal acoustics to provide a comprehensive understanding of the vibro-acoustic phenomenon as a whole. Results show strong agreement between experimental observations and theoretical predictions, demonstrating the validity of the combined approach for studying the interaction between turbulence, structures, and acoustics. The talk will outline the experimental methodology, highlight key findings, and discuss their broader implications.

This work is towards an M.Sc. degree under the supervision of Dr. Hadar Ben-Gida Research Fellow of Aerospace Engineering. Coadvisor: Dr. Oksana Stalnov, Elbit Systems.