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Theory and Practice of Rotor Dynamics

Theory and Practice of Rotor Dynamics. 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 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. (from nptel.ac.in)

Lecture 20 - Continuous System and Finite Element Method

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Overview

Lecture 01 - Introduction

Lecture 02 - A History of Rotor Dynamics

Lecture 03 - State of the Art of Rotor Dynamics

Simple Rotors

Lecture 04 - Simple Rotor Models with Rigid Bearings

Lecture 05 - Jeffcott Rotor Model

Lecture 06 - Variant of Jeffcott Rotor Model

Rotor Mounted on Bearings

Lecture 07 - Rigid Rotor Mounted on Simple Anisotropic Springs as Bearings

Lecture 08 - Rigid Rotor Mounted on Complex Anisotropic Bearings

Lecture 09 - Flexible-Shaft with a Rigid Disc Mounted on Anisotropic Supports

Gyroscopic Effects

Lecture 10 - Synchronous Whirl of a Rotor System with a Thin Disc

Lecture 11 - Synchronous and Asynchronous Pure Wobbling Motions

Lecture 12 - Asynchronous Whirl of a Rotor System with a Thin Disc

Lecture 13 - Asynchronous Whirl Analysis with Dynamic Approach

Torsional Vibrations

Lecture 14 - Simple Rotor System

Lecture 15 - Three Disc Rotor System

Lecture 16 - Transfer Matrix Approach I

Lecture 17 - Transfer Matrix Approach II

Lecture 18 - Transfer Matrix Approach III

Lecture 19 - Geared and Branched Systems

Lecture 20 - Continuous System and Finite Element Method

Lecture 21 - Finite Element Method

Lecture 22 - Finite Element Analysis

Lecture 23 - Finite Element Analysis (cont.)

Transverse Vibrations

Lecture 24 - Influence Coefficient Method

Lecture 25 - Transfer Matrix Method I

Lecture 26 - Transfer Matrix Method II

Lecture 27 - Transfer Matrix Method III

Lecture 28 - Continuous System Approach

Lecture 29 - Finite Element Method I

Lecture 30 - Finite Element Method II

Lecture 31 - Finite Element Method III

Instability in Rotor Systems

Lecture 32 - Instability in Rotor Systems: Bearings

Lecture 33 - Fluid-Film Bearings

Lecture 34 - Internal Damping and Asymmetrical Shaft

Lecture 35 - Steam Whirl and Seals

Lecture 36 - Subcritical Speed Whirl

Balancing

Lecture 37 - Introduction to Rigid Rotor Balancing

Lecture 38 - Dynamic Balancing of Rotors: Rigid Rotor Balancing

Lecture 39 - Dynamic Balancing of Rotors: Flexible Rotor Model Balancing

Lecture 40 - Dynamic Balancing of Rotors: Influence Coefficient Method for Flexible Rotor

Condition Monitoring of Rotors

Lecture 41 - Common Faults and Vibration Signatures

Lecture 42 - Condition Based Monitoring