In recent years, Structural Health Monitoring (SHM) has emerged as a new research area in civil engineering. Most existing health monitoring methodologies require direct measurement of input excitation for implementation. However, in many cases, there is no easy way to measure these inputs – or alternatively, to externally excite the structure. Therefore, SHM methods based on ambient vibration ...

Operational modal analysis deals with the estimation of modal parameters using vibration data obtained from unknown or ambient excitation sources in operational rather than laboratory conditions. The paper compares three operational modal parameter identification approaches for identifying modal parameters of a multi-span concrete motorway bridge when subjected to either ambient or broad-band l...

Direct piezoelectric conversion is very popular in generating power from mechanical stress. There continuous progress harvesting vibration. In this article, experimental tests on a circular plate, to evaluate the electric produced by at low acceleration over wide range of ambient vibration frequency, are presented. The analysis presented and discussed. results demonstrate potentiality using low...

As a growing number of areas in the UK become ever more densely populated, increasing construction work is being undertaken and transportation networks built in order to cope with the growing population. The development of this infrastructure, coupled with the mechanisation of modern life, often results in exposure to various types of vibration from a range of sources such as rail, road traffic...