Subject Plan Dome

AS/09/C1/0/1 of 2

PN ENGINEERING COLLEGE – SUBJECT PLAN

Instructor: Cdr ® Muhammad Shakeel Subject: Design of Machine Elements (ME 436) Semester: V III(ME)Text Book(s): Mechanical Engineering Design

(6th or 8th edition)A text book on machine design

Author(s): Shigley and Mischke

Khurmi & Gupta

Publisher(s): McGraw-Hill

Reference Book(s): Machine Design (Schaum Series) Author(s): Hall, Holowenko & Laughlin Publisher(s):Semester Comex: 21January 2013 Finex: May 2013 Total allocated period: 54

Main Topic Sub Topic Reference Total number of periods

Review of MechanicsStatic and Dynamic Loading: Introduction, Meaning of Design, Mechanical Engineering Design, Design Phases, Design Considerations, Factor of Safety, Codes & Standards, Economics, Reliability & Safety, Units, Rules for use of SI Units

Mechanical Engineering Design(6th or 8th edition) by Shigley & Mischke

Chapter 12

Stress Analysis Tension, Compression & Torsion Stresses in Beams & shafts, Area Moment Method & Strain Energy,, Deflection & Buckling Stresses & Mohr’s Circle, Bi-axial & Tri-axial Stress States, Strains Associated with Stresses, Shear & Moment, Stresses in Bending & Torsion, Shear Center & Shear Axis, Press & Shrink Fits.


Chapter 3 & 45

Materials & their Properties

Static Strength, Plastic Deformation, Strength & Hardness, Impact Properties, Creep & Temperature Properties, Strength Properties of Ferrous & Non-Ferrous Alloys, Viscoelasticity.


Chapter 53

Design Stresses, Stress Concentration, Fatigue

Stresses & Fatigue Design Criterion

Design for Static Strength, Static Loads & Factor of Safety; Failure Theories, Maximum Normal Stress Theory, Maximum Shear Stress Theory, The Distortion Energy Theory, Failure of Ductile Material, Failure of Brittle Material, Stress Concentration, Stress Concentration Factors, Stress Concentration Factors & Static Loads


Chapter 64

Screws, Keys and Couplings, Screws:

Design of Screws, Fasteners, and Connections, Thread Standards & definitions, Power Screws, Thread Stresses, Threaded Fasteners, Bolted Joints In Tension & Compression, Torque requirements, Strength Specifications, Selection of the Nut, Bolt Pre-Load & Fatigue Strength, Gasket Joints, Bolt & Riveted Joints in Shear, Centroid of Bolt/ Rivet Groups, Eccentric Loading of Bolt & Rivet Joints, Keys, Pins & Retainers.


Chapter 8 5

Welded & Revited Joints Welded, Brazed & Bonded Joints, Butt & Fillet Welds & their Strength, Torsion & Bending in Welds, Total Strength of Welds


Signature: __________________ Countersigned (HOD): _______________________

Dated: _____________________ Dated: _______________________

AS/09/C1/0/1 of 2

Chapter 9 3

Mechanical Springs Stresses & Deflection of Helical Springs, Extension & Compression springs, Design of Helical Springs, Critical Frequency of Spring Loading & Fatigue, Helical Torsion Springs.

Mechanical Engineering Design(6th or 8th edition) by Shigley & MischkeChapter 10 3

Bearings Rolling Contact Bearings, Ball & Roller Bearings, Bearing Life, Bearing Load, Selection of Ball & Roller Bearings, Lubrication Consideration of Ball & Roller Bearings, Design of Ball & Roller Bearing Mounts.

Mechanical Engineering Design(6th or 8th edition) by Shigley & MischkeChapter 11

4

Shafts Design for Static Loads, Classical ASME approach for Design, The Soderberg Approach, Kimmelmann Load Line Approach, Graphical Approach, A General Approach, The Sines Approach, Computer Solution.


Chapter 185

Clutches, Brakes, Couplings & Flywheels

Internal Expanding Rim Clutches & Brakes, External Contracting Rim Clutches & Brakes, Frictional Contact Axial Clutches, Cone Clutches & Brakes, Energy considerations & Temperature rise, Friction Materials, Miscellaneous Clutches & Couplings.


Chapter 166

Flexible Mechanical Elements

Flat & V-Belt Drives, Roller Chain Drives, Flexible Shafts. Mechanical Engineering Design(6th or 8th edition) by Shigley & MischkeChapter 17

4

Gears and Gear Trains Spur Gears, Involute Teeth & Contact Ratio, Tooth systems, Gear Trains & Force Analysis, Tooth Stresses & Design; Helical, Bevel & Worm Gears; Helical Gear, Tooth Proportions, Force Analysis, Strength Analysis & Design; Worm Gears, Kinematics, Force & Strength Analysis, Power Rating of Worm Gearing; Bevel Gears Kinematics , Force & Strength Analysis


Chapter 13 & 146

Mini-Project Based on the basic design exercises on the previously covered topics.

Signature: __________________ Countersigned (HOD): _______________________

Dated: _____________________ Dated: _______________________

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