Vibration Problems In Machines
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Vibration Problems in Machines
Vibration Problems in Machines explains how to infer information about the internal operations of rotating machines from external measurements through methods used to resolve practical plant problems. Second edition includes summary of instrumentation, methods for establishing machine rundown data, relationship between the rundown curves and the ideal frequency response function. The section on balancing has been expanded and examples are given on the strategies for balancing a rotor with a bend, with new section on instabilities. It includes case studies with real plant data, MATLAB® scripts and functions for the modelling and analysis of rotating machines.
Vibrations of Power Plant Machines
This book offers professionals working at power plants guidelines and best practices for vibration problems, in order to help them identify the respective problem, grasp it, and successfully solve it. The book provides very little theoretical information (which is readily available in the existing literature) and doesn’t assume that readers have an extensive mathematical background; rather, it presents a range of well-documented, real-world case studies and examples drawn from the authors’ 50 years of experience at jobsites. Vibration problems don’t crop up very often, thanks to good maintenance and support, but if and when they do, most power plants have very little experience in assessing and solving them. Accordingly, the case studies discussed here will equip power plant engineers to quickly evaluate the vibration problem at hand (by deciding whether the machine is at risk or can continue operating) and find a practical solution.
Rotating Machinery Vibration
Primer on rotor vibration: vibration concepts and methods; lateral rotor vibration analysis models; torsional rotor vibration analysis models. Rotor dynamic analysis: RDA code for lateral rotor vibration analyses; bearing and seal rotor dynamics; turbo-machinery impeller and blade effects. Monitoring and diagnostics: rotor vibration measurement and acquisition; vibration severity guidelines; signal analysis and identification of vibration causes. Troubleshooting case studies: rotor unbalance and critical speed case studies; self-excited rotor vibration case studies; additional rotor vibration problem cases and topics.