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 SRI KRISHNA COLLEGE OF TECHNOLOGY

KOVAIPUDUR, COIMBATORE  – 641 042

DEPARTMENT OF MECHANICAL ENGINEERING

LECTURE PLAN

VIBRATION AND NOISE ENGINEERING

 Year & Semester : IV Year – VIII Semester (B.E MECHANICAL ENGINEERING)

Academic Year : 2013  – 2014 (EVEN Semester)

OBJECTIVES

 At the end of this course student should able to

a) An ability to apply knowledge of mathematics, science, and engineering

 b) An ability to identify, formulates, and solves engineering problems

COURSE OUTCOMES

  Students will be able to construct the equations of motion for free-body diagrams.   Students will be able to solve for the motion and the natural frequency for forced

vibration of a single degree of freedom damped or undamped system 

  Apply skills in instrumentation, measurement and signal processing - through

vibration testing for several physical, mechanical and structural systems.  

Unit no  Title  Topics  Reference Hours TotalHours 

I INTRODUCTION

Introduction -Sources Of Vibration T1 (31-39) 1

17

Mathematical Models-Displacement,velocity and Acceleration

T1 (73-91) 2

Review Of Single Degree FreedomSystems

T1 (136-181) 1

Vibration isolation-Vibro meters andaccelerometers

T2 (65-67) ,(76-81)

2

Response To Arbitrary and non-harmonic Excitations

T2 (90-93) 1

Transient Vibration LN* 1

Impulse loads T2 (88-90) 1

Critical Speed Of Shaft-Rotor systems T1 (181-187) 1

Tutorials 7

II

TWO DEGREE

FREEDOMSYSTEM

Introduction T1 (411-413) 1

15

Free Vibration of Undammed andDamped

T1 (413-414) 2

Forced Vibration with HarmonicExcitation System

T1 (436-438) 2

Coordinate Couplings T2 (125-128) 1

Principal Coordinates T1 (429-436) 1

Tutorials 8

III 

MULTI-DEGREEFREEDOMSYSTEM ANDCONTINUOUSSYSTEM 

Multi Degree Freedom System  T1 (478-482)  1 

17 

Influence Coefficients and stiffnesscoefficients 

T1(489-497) 1 

Flexibility Matrix and StiffnessMatrix 

T1(491-497) 1 

Eigen Values and Eigen Vectors  T1(506-516) 1 Matrix Iteration Method -Dunkerley, Rayleigh‟s, and HolzerMethod,Geard system 

T2(292-318)  2 

Eigen Values & Eigen vectors forlarge system of equations using

LN 1 

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  sub space 

Lanczos method -ContinuousSystem 

T1 618 1 

Vibration of String, Shafts andBeams 

T1(619-650) 1 

Tutorials  8 

IV VIBRATIONCONTROL 

Specification of Vibration Limits  T1(688) 1 

13 

Vibration severity standards-

Vibration as condition monitoringtool 

T1(692) 1 

Vibration Isolation methods--Dynamic Vibration Absorber  

T1(717-732) 1 

Torsional and Pendulum Type Absorber  

T1(701-712) 1 

Damped Vibration absorbers  T1(715) 1 

Static and Dynamic Balancing-Balancing machines 

T1(712) 1 

Field balancing  LN* 1 

Vibration Control by DesignModification 

T1(733-734) 1 

 Active Vibration Control. T1(733)  1 

TUTORIALS  4 

V 

EXPERIMENTALMETHODS INVIBRATIONANALYSIS 

Vibration Analysis Overview  T1(771)  1 

13 

Experimental Methods in Vibration Analysis 

T1(799-810)  1 

Vibration Measuring Instruments T1(789-791 

2 

Selection of Sensors- Accelerometer Mountings 

T1(773-778)  1 

Vibration Exciters-Mechanical,Hydraulic 

T1(791-792)  1 

Electromagnetic andElectrodynamics 

LN* 1 

Frequency Measuring Instruments  T1(788)  1 

System Identification fromFrequency Response 

LN* 1 

Testing for resonance and modeshapes 

T1(806-809)  1 

Tutorials  3 

TOTAL = 45 (L) + 30 (T) =75 hrsTEXT BOOKS

T1. Rao, S.S.,” Mechanical Vibrations,” Addison Wesley Longman, 1995 

T2. Thomson, W.T. –“Theory of Vibration with Applications”, CBSPublishers and Distributors, New Delhi, 1990

REFERENCES 

R1. Ramamurti. V, “Mechanical Vibration Practice with Basic Theory”, Narosa,New Delhi, 2000 

R2 S. Graham Kelly & Shashidar K. Kudari, “Mechanical Vibrations”, TataMcGraw –HillPublishing Com. Ltd New Delhi, 2007..