Book Review

Journal of Sound and Vibration, 232(5), May 2000, 1015-1016.

Integrating Dynamics, Condition Monitoring and Control for the 21st Century, 1999, by A.G. Starr, A.Y.T. Leung, J.R. Wright and D.J. Sandoz, editors. Rotterdam: A.A. Balkema, ISBN 90 5809 1120.

This book contains the proceedings of the first International Conference on the Integration of Dynamics, Monitoring and Control, which was held in Manchester, England on 1-3 September 1999. The aim of the conference, as indicated by the title, was to encourage the integration of technologies and cross fertilisation of ideas between disciplines, and to demonstrate integrating technologies and applications. Such conferences are increasingly important because integration of technology will be a major theme of the next century. The volume contains a total of 87 papers, with the authors spread throughout the world. Interestingly, just over half of the first authors are from Asia, giving the reader ready access to research that is often difficult to uncover. As expected the proceedings contain papers on a wide range of range of subjects, and it would be impossible to mention all of them here. However, some themes within the conference will be identified.

The three main themes of the conference were, of course, dynamics, condition monitoring and control, and the papers were evenly spread among these areas. Many of the papers are concerned with applications, and this helps by integrating any techniques which might be useful in the application. In dynamics, machines dynamics and non-linear models are prominent and there are papers modelling separation equipment, vibration mills, transmission systems, ship lifts, roller chains, suspended cables, cantilever pipes containing fluid, a pendulum, ship motion, non-linear vibration absorbers, bonded joints and plates. Rotor dynamics applications are well represented, often concerned with the control of rotating machinery or the representation of faults, with papers on the chaotic vibration caused by rotor-stator rubs, the identification of faults from run ups and the identification of unbalance and sensor runout.

The papers on condition monitoring demonstrate the huge variety of techniques that are available. Techniques such as principal component analysis, higher order spectra, wavelet and other time-frequency types analysis, acoustic emission, neural networks and other types of feature extraction are all used. Several papers discuss combining data from different sensors or techniques, for example using fault trees or other data fusion technologies. These approaches are demonstrated on a wide variety of equipment such as gear teeth, gearboxes, bearings, power transformers, textile machinery, CNC machine tools, hydraulic actuators, coke ovens and pumps. There is a section on condition monitoring of electrical machines that is particularly comprehensive.

On the control side the emphasis is once again on applications, which includes vehicle airbags, noise and vibration control, temperature control of a glass furnace, power systems, mirror systems and flow control, using a variety of actuators, such as speakers, piezoceramic materials and magnetostrictive and jet actuators. Aspects of tracking control of robots is also covered.

Overall the range and quality of papers is impressive, and these proceedings are a worthwhile addition to the bookshelf.