{"id":80,"date":"2021-12-13T15:40:59","date_gmt":"2021-12-13T14:40:59","guid":{"rendered":"https:\/\/web.umons.ac.be\/mrdv\/?page_id=80"},"modified":"2022-05-27T14:35:43","modified_gmt":"2022-05-27T12:35:43","slug":"easymod","status":"publish","type":"page","link":"https:\/\/web.umons.ac.be\/mrdv\/easymod\/","title":{"rendered":"EasyMod"},"content":{"rendered":"
\u201cAfter 30 years of development, experimental modal analysis is now established as a fundamental technique for understanding the vibration behaviour of structures. The application of modal analysis underpins the theoretical and practical modelling of structural dynamic performance. Although the basic principles have been known for many years, it is only recently that a rapid and broad development of new methods has led to their widespread use and application<\/em>.\u201d (N. A. L. Lieven and D. J. Ewins, Phil. Trans. R. Soc. Lond. A, 359, p.3,2001)<\/p>\n EasyMod is a MatLab\/Scilab toolbox for teaching modal analysis. It provides a set of functions allowing to establish the identification of modal parameters and these validation. Nowadays, circle-fit, line-fit and least square complex exponential methods are implemented. In addition, some relevant functions are offered in order to complete a modal analysis: operations on the frequency response function (FRF) , generation of FRF from mass, damping and stiffness matrices, MAC (modal assurance criterion) and modal collinearity, …<\/p>\n