Open AccessModal analysis and testing of rotating machines for predictive maintenance: effect of gyroscopic forces
Author(s) -
A Vansteenkiste,
Mia Loccufier,
Bram Vervisch,
Patrick De Baets
Publication year - 2012
Publication title -
sustainable construction and design
Language(s) - English
Resource type - Journals
eISSN - 2295-9092
pISSN - 2032-7471
DOI - 10.21825/scad.v3i2.20564
Subject(s) - gyroscope , modal , parametric statistics , vibration , rotation (mathematics) , modal analysis , structural engineering , modal testing , engineering , computer science , physics , aerospace engineering , acoustics , mathematics , materials science , artificial intelligence , statistics , polymer chemistry
Through the year’s preventive maintenance, which is based on vibration measurements hasgrown in importance to reduce costs. However in industry nowadays there is still a great need for goodanalytical prediction models that describe the dynamics of rotating structures. In this paper it is first shownhow to build a model for for undamped gyroscopic systems. Secondly the model is analysed and used tomake a parametric study for the design a test rig. It is found that the third and the fourth eigenfrequencychangein function of the rotation speed due to the gyroscopic effect. Finally the experimental modal testingof rotating structures is discussed. The methods to excite a rotating structure in order to obtain the modalparameters are studied.