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NPTEL

Theory & Practice of Rotor Dynamics

NPTEL and Indian Institute of Technology Guwahati via YouTube

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Overview

Instructor: Prof. Rajiv Tiwari, Department of Mechanical Engineering, IIT Guwahati.

The purpose of this course is to give a basic understanding of the rotor dynamics phenomena with the help of simple rotor models and subsequently the modern analysis methods for real-life rotor systems. The modeling and analysis of rotor-bearing dynamics are now reached a mature state. In a broad sense, this area covers several categories namely modeling, analysis, identification and condition monitoring of rotor-bearing systems. The finite element (FE) method has been used extensively for modeling and analyses of rotors for the transverse and torsional vibrations.

Syllabus

Mod-01 Lec-01 Introduction.
Mod-01 Lec-02 A Brief History of Rotor Dynamics.
Mod-01 Lec-03 The State of the Art of Rotor Dynamics.
Mod-02 Lec-01 Simple Rotor Models with Rigid Bearings.
Mod-02 Lec-02 Jeffcott Rotor Model.
Mod-02 Lec-03 Variant of Jeffcott Rotor Model.
Mod-03 Lec-01 Rigid Rotor Mounted on Simple Anistropic Springs as Bearings.
Mod-03 Lec-02 Rigid Rotor Mounted on Complex Anisotropic Bearings.
Mod-03 Lec-03 Flexible Shaft with a Rigid Disc Mounted on Anistropic Supports.
Mod-04 Lec-01 Gyroscopic Effects : Synchronous whirl of a Rotor Systems with a thin Disc.
Mod-04 Lec-02 Gyroscopic Effects : Synchronous and Asynchronous pure wobbling motions.
Mod-04 Lec-03 Gyroscopic Effects : Asynchronous whirl of a Rotor system with a thin Disc.
Mod-04 Lec-04 Gyroscopic Effects : Asynchronous whirl analysis with Dynamic Approach.
Mod-05 Lec-01 Torsional Vibrations: Simple Rotor Systems.
Mod-05 Lec-02 Three Disc Rotor System.
Mod-05 Lec-03 Transfer Matrix Approach I.
Mod-05 Lec-04 Transfer Matrix Approach II.
Mod-05 Lec-05 Transfer Matrix Approach III.
Mod-05 Lec-06 Geared and Branched Systems.
Mod-05 Lec-07 Continuous System and Finite Element Method.
Mod-05 Lec-08 Finite Element Method.
Mod-05 Lec-09 Finite Element Analysis.
Mod-05 Lec-10 Finite Element Analysis III.
Mod-06 Lec-01 Influence Coefficient Method.
Mod-06 Lec-02 Transfer Matrix Method I.
Mod-06 Lec-03 Transfer Matrix Method II.
Mod-06 Lec-04 Transfer Matrix Method III.
Mod-06 Lec-05 Continuous System Approach.
Mod-06 Lec-06 Finite Element Method I.
Mod-06 Lec-07 Finite Element Method II.
Mod-06 Lec-08 Finite Element Method III.
Mod-07 Lec-01 Instability in Rotor Systems: Bearings.
Mod-07 Lec-02 Fluid-Film Bearings.
Mod-07 Lec-03 Internal Damping & Asymmetrical Shaft.
Mod-07 Lec-04 Steam Whirl and Seals.
Mod-07 Lec-05 Subcritical Speed Whirl.
Mod-08 Lec-01 Introduction to Rigid Rotor Balancing.
Mod-08 Lec-02 Dynamic Balancing of Rotors: Rigid Rotor Balancing.
Mod-08 Lec-03 Dynamic Balancing of Rotors:Flexible Rotor Model Balancing.
Mod-08 Lec-04 Dynamic Balancing of Rotors:Influence Coefficient Method for Flexible Rotor.
Mod-09 Lec-01 Common Faults & Vibration signatures.
Mod-09 Lec-02 Condition Based Monitiring.

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