Dynamics & Vibration Research Group

Mechanics, Materials, and Design


Introduction

Welcome to the web pages of the Dynamics and Vibration Research Group. The work of the group is directed at the many challenging dynamics and vibration problems associated with the design of modern engineering structures and transportation systems; problems that are exacerbated by the constant drive towards lighter weight structures, more powerful propulsion systems, and more stringent specifications regarding permitted levels of noise and vibration. Ongoing work covers most industrial sectors, and ranges from long term fundamental research to shorter term applied research aimed at a specific industrial need. Current research themes include The group has access to extensive computational and experimental facilities, and we have close links with industry and other academic and research institutions. The web pages contain details of the group members, our research portfolio, our seminar series, and current vacancies. Enquiries are always welcome regarding our present work or potential new research projects.




Ernst Chladni   The earliest experimental technique to visualise patterns of vibration is the "Chladni figure", on which our logo is based. Ernst Chladni (1756-1827) first published his method in 1787: he excited a plate into vibration with a violin bow, and sprinkled sand on the surface. The sand gathered at the nodal lines, revealing the vibration pattern. By the time he published his famous book in 1809, Chladni had used this method to study vibration of plates of many shapes, and these results were important in validating the theoretical models for plate vibration which were developed during the nineteenth century. Chladni figures are still a useful experimental technique today, but it is now easier to create them using sinusoidal excitation so that the frequency can be controlled directly.



Dynamics and Vibration Logo