# Rotor dynamics lecture notes pdf

Download link is provided and students can download the anna university me6505 dynamics of machines dom syllabus question bank lecture notes syllabus part a 2 marks with answers part b 16 marks question bank with answer, all the materials are listed below for the students to make use of it and score good maximum marks with our study materials. Venkatesan, department of aerospace engineering, iit kanpur. Rigid rotor mounted on simple anistropic springs as bearings. Pdf me6505 dynamics of machines dom books, lecture notes. Find materials for this course in the pages linked along the left. This document is highly rated by students and has been viewed 332 times. Next, through the supporting bearings and through the fluid encircling the rotor unless the rotor operates in vacuum, the rotor lateral vibrations are transmitted to the nonrotating parts of the machine. Notes 0 introduction to fluid film bearings and seals a turbomachinery is a rotating structure where the load andor the driver handle a process. The concepts in the text are reinforced by parametric studies and numerous illustrative examples and figures. These calculations will be performed manually, by you first, then check by running the computer code dybal. Rotor dynamics is the branch of engineering that studies the lateral. Dynamics dition 2 1 in chapter 16 we looked at planar motion of slab like bodies. Helicopter dynamics introduced in an organized and systematic manner a result of lecture notes for a graduatelevel introductory course as well as the culmination of a series of lectures given to designers, engineers, operators, users, and researchers, fundamentals of helicopter dynamics provides a fundamental understanding and a thorough overview of helicopter dynamics and. Department of electrical engineering, veer surendra sai university of technology, orissa, burla, india.

Quadcopter dynamics, simulation, and control introduction. However, there are certain rotor section shapes which are not easily modelled contributed by the vibrations committee and presented at the design engineering technical conference, st. Jul 08, 2012 introduction to helicopter aerodynamics and dynamics by prof. Electrical machinesii 310 4th semester subject code.

Rotordynamics studies the lateral and torsional vibrations of rotating shafts, with the objectives of predicting the rotor vibrations and constraining the vibration level under an acceptable limit. Weak interactions and disorder in 0d, 1d, and higher dimensions i. Turbopump rotor dynamics because of high power density and low damping in rocket turbopumps, these machines exhibit in their most extreme form a variety of vibration effects, which are either absent or masked by normal damping mechanisms in other turbo machines. In this chapter we present a short introduction to rotor dynamics to familiarize the reader with the basic concepts and terminologies commonly used. Film bearing system lecture 5 restates the analysis for static equilibrium in a journal bearing. Our next derivation is for a case when the body is not symmetric about xy plane.

It consists of several copper segments, separated by insulation. There we had only w z and i xz and i yz were zero as xy was a pane of symmetry. Diatomic molecular spectra electronic rovibronic spectra uv, visible. Dc motor rotor construction commutator poles rotor winding fan. Lecture notes dynamics aeronautics and astronautics. Lecture notes dynamics aeronautics and astronautics mit. The rotor carries a distributed winding, and is the winding where the emf is induced. An equal mass, placed source of vibration in machines with by adding compensating masses to the at an angle of 180 to the unbalanced rotating parts.

Be able to idealize a simple mechanical system or component as a collection of particles or rigid bodies, and to use newtonian mechanics, with the aid of analytical or computational methods, to analyze forces and motion in the idealized system. The lecture introduces the basic problems in the rotordynamics of turbomachinery, excessive vibration and instability. Extension of the transfer matrix method for rotordynamic. Organizational details, brief history of aeronautics, nasa video, examples of nasa research lecture 2. Introduction to dynamics of rotorbearing systems includes numerous examples, from a singledegreeoffreedom system to complicated industrial rotating machinery, which serve to illustrate fundamental dynamic behaviors. Diatomic molecular spectra rotational spectra microwaves vibrationrotation rovibrational spectra infrared 3.

Scheme of a blade machine our aim is to nd power of a turbine for given ow parameters. Quadcopter dynamics, simulation, and control introduction a helicopter is a. Rotor dynamics is the branch of engineering that studies the lateral and. Introduction equations of motion structural analysis case studies references history and scientists history and scientists 7 27 1869 ankine r on the centrifugal force on rotating shafts steam turbines notion of critical speed 1895 oppl f, 1905 belluzo, stodola notion of supercritical speed 1919 effcott j the lateral vibration of loaded shafts in the neighborhod.

The book deals with torsional and bending vibrations of rotors, stability aspects, balancing and condition monitoring. It evolved out of lectures delivered at different universities over the last two decades. Theory and practice of rotor dynamics online course video. The dynamics of machinery pdf free download starts with the topics covering gyroscopes, effect of precession motion on the stability of moving vehicles such as motor car, introduction free body diagrams, three position synthesis, friction clutches, turning moment, porter and proell governors, balancing of rotating masses single and multiple. Introduction equations of motion structural analysis case studies references outline 2 27 1 introduction. Static and dynamic unbalance notes edurev is made by best teachers of. Next, it considers the dynamics of the simplest rigid rotor bearing system supported on journal bearings. Positive damping ratios evidence the absence of rotordynamic instability. These lecture notes provide only a basic introduction to the topics above. Mar 24, 2017 lecture notes on gas dynamics university of notre dame. Freely browse and use ocw materials at your own pace. Inputs and outputs of the synchronous generator model. Syllabus of bachelor of technology in electrical engineering, 2010. Dc machines 1 dc machines transformsmechanicalenergyintoelectric energywithdc voltage and currentdc generatoror dynamo, or converselydc motor.

Rotor dynamics studies the lateral and torsional vibrations of rotating shafts, with the objectives of predicting the rotor vibrations and constraining the vibration level under an acceptable limit. Introduction to helicopter aerodynamics and dynamics by prof. Kicked rotor and anderson localization ii see lecture i notes slides. Introduction to power system dynamics 6 generator qt pt t jvtj grid figure 6. Rotor dynamcis of a centrifugal pump technical university eindhoven, february 2006 52 whirl of simple rotors in rotor dynamics a common phenomenon is whirling. Application notes static and dynamic balancing of rigid. A centrifuge rotor rotating at 10,300 rpm is shut off and is eventually brought uniformly to rest by a frictional torque of 1. The acceptable performance of a turbomachine depends on the adequate design and operation of the bearing and seal elements supporting a rotor. Matrices are useful in spectroscopic theory 1 s spectroscopic notation, good quantum numbers, perturbation theory and secular equations, nonorthonormal basis sets, transformation of matrix elements of any operator into perturbed basis set. The third revised and enlarged edition of the book presents an indepth study of the dynamic behaviour of rotating and reciprocating machinery. Kruyt turbomachinery laboratory engineering fluid dynamics department of mechanical engineering university of twente the netherlands 19992005 n.

Mod01 lec01 introduction to helicopter aerodynamics and. Dynamics of machinery pdf notes dm notes eduhub smartzworld. Dynamic balancing of rotating machinery experiment technical. Often it can be observed in practice, which makes this physically easy to interpret. Most often, they represent the lowest modes of the entire machine structure. Impeller seals, floating ring seals, thrust collars and balance pistons are a few of these. To introduce and study key concepts related to aerodynamic loads, vehicle performance, basic rotor dynamics, and control. Aersp 407 and aersp 504 aerodynamics of vstol aircraft kenneth s. Modern hydrodynamic lubrication theory, class notes 500 pages pdf files notes 016.

Introduction to dynamics of rotor bearing systems includes numerous examples, from a singledegreeoffreedom system to complicated industrial rotating machinery, which serve to illustrate fundamental dynamic behaviors. Structural dynamics and vibration laboratory october 27, 2009. Instead it is a cylindrical core constructed of steel laminations with conductor bars mounted parallel to the shaft and embedded near the surface of the rotor core. These can be arranged as two coplanar rotors both providing upwards thrust, but. The end of the coils are bent and tied together to assure mechanical strength. About iit guwahati iit guwahati campus is spread over a sprawling 285 hectares plot of land on the north bank of the river brahmaputra around 25 km from the heart of the city. To facilitate for readers who want to get a deeper knowledge of and insight into these problems, bibliographies are given in. I will be basing lecture note primarily on this book. Matrices are useful in spectroscopic theory 1 s spectroscopic notation, good quantum numbers, perturbation theory and secular equations, nonorthonormal basis sets, transformation of matrix elements of any operator into perturbed basis set 2.

No distribution of the material listed below without express permission from the author. The acceptable performance of a turbomachine depends on the adequate design. Lecture notes fluid mechanics of turbomachines ii n. Lecture notes massachusetts institute of technology. Pdf me6505 dynamics of machines dom books, lecture. These conductor bars are short circuited by an end rings at both endof the rotor core. In this page you will find, in pdf format, all of the lecture notes and handouts provided in class. Rajiv tiwari,department of mechanical engineering,iit guwahati. With the majestic brahmaputra on one side, and with hills and vast open spaces on others, the campus provides an ideal setting for. Aersp 407 and aersp 504 aerodynamics of vstol aircraft. Notes 0 introduction to fluid film bearings and seals.

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