Rotordynamics (Dekker Mechanical Engineering) by Agnieszka Muszynska

By Agnieszka Muszynska

Because the most crucial components of rotating equipment, rotors also are the main liable to mechanical vibrations, that may result in laptop failure. Correction is simply attainable whilst right and exact prognosis is got via figuring out of rotor operation and the entire strength malfunctions which may ensue. Mathematical modeling, specifically modal modeling, is essential to figuring out saw phenomena via measured facts and for predicting and fighting failure.

Rotordynamics advances easy but sufficient types of rotordynamic difficulties and phenomena on the topic of rotor operation in its setting. in response to Dr. Muszy(nВґ)ska's huge paintings at Bently Rotor Dynamics learn company, global popular for cutting edge and groundbreaking experiments within the box, this publication presents lifelike types, step by step experimental equipment, and the foundations of vibration tracking and useful malfunction diagnostics of rotating equipment. It covers prolonged rotor types, rotor/fluid-related phenomena, rotor-to-stationary half rubbing, and different comparable difficulties equivalent to nonsynchronous perturbation trying out. the writer additionally illustrates useful diagnoses of a number of attainable malfunctions and emphasizes right interpretation of computer-generated numerical results.

Rotordynamics is the preeminent consultant to rotordynamic conception and perform. it's the most respected instrument to be had for somebody engaged on modeling rotating equipment on the laptop layout level or appearing extra analytical and experimental study on rotating computing device dynamics.

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Extra info for Rotordynamics (Dekker Mechanical Engineering)

Example text

1 Rotor/Seal and Rotor/Bearing Mathematical Model ................................. 2 Eigenvalue Problem ..................................................................................... 3 Post-Instability Threshold Self-Excited Vibrations ..................................... 4 Identification of Instability Source along the Rotor ................................... 5 Summary...................................................................................................... 8 Modal Perturbation Testing and Identification of Rotor/Fluid Film Characteristics..........................................................................................................

4 Final Remarks ............................................................................................. Rotor Lateral/ Torsional Vibration Coupling due to Unbalance — Free, Forced, and Self-Excited Vibrations ....................................... 1 Introduction................................................................................................. 2 Mathematical Model ................................................................................... 1 Kinetic energy and related calculations........................................

4 Rotor Stress Calculation Using Vibration Data ......................................... 5 Example — Synchronous Vibration of the Rotor ...................................... 6 Numerical Example — Overhung Vertical Anisotropic Rotor ................... 7 Discussion.................................................................................................... 8 Final Remarks ............................................................................................. Rotor Crack Detection by Using Vibration Measurements....................................

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