Output-only structural health monitoring by vibration measurements under changing weather conditions KU Leuven
Vibration-based structural health monitoring relies on the fact that modal parameters of a structure depend on local stiffness changes. A major problem is that also normal changes in temperature, relative humidity, wind speed, operational loading, etc. influence the modal parameters, in particular the natural frequencies. This influence is generally nonlinear. Here, an output-only technique is proposed for eliminating environmental influences on ...