MACHINE DESIGN & INDUSTRIAL DRAFTING

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GUJARAT TECHNOLOGICAL UNIVERSITY

AUTOMOBILE ENGINEERING (02), INDUSTRIAL ENGINEERING (15) &

MECHANICAL ENGINEERING (19)

MACHINE DESIGN & INDUSTRIAL DRAFTING

SUBJECT CODE:-2141907

B.E 4th SEMESTER

  1. Introduction:- Concepts of stresses and strain, Combination of Axial, Shear, Torsional, and Bending loads; Theories of Failures; Distortion energy (von Mises) Maximum- Shear stress, Maximum Principal stress, Coulomb-Mohr Theory, Selection and Use of Theories of Failures; Factor of safety, Contact stresses, Crushing and Bearing stress,                              Application Problems:- Eccentric Loading; Cotter and knuckle Joints; Design and analysis of lever; Cranked , Bell crank, Foot, Rocker arm.
  2. Beams and Columns:- Different types of supports/ end conditions, Revision of stresses in beams; Effect of section, Orientation, and type of loading; Deflection of beams for different loading condition. Compressive axial loading of columns and struts, Slenderness ratio, Compressive stress and Buckling of members, Effect of end conditions; Eular’s Formula Application, Validity and limitations; Rankine’s Formula, Johonson’s equation; Eccentric loading of long columns.
  3. Shafts, Keys and Couplings:- Design of solid and hollow circular shaft subjected to torque and combined loading; Design of shaft for rigidity and stiffness; Design of keys; Saddle, Sunk, Woodruff, Square, Flat, Kennedy key and Splines, Design of Couplings; Concept of rigid and flexible couplings, Design of; Rigid flange and Flexible coupling.
  4. Power Screws and Threaded Joints:- Forms of thread, single and Multiple threaded screw, Terminology of power screw, Torque requirement of lifting/lowering, Self-locking, Efficiency of threads, coefficient of friction, design of screw and nut. Basic types of screw fastening, Cap and Set screw, Bolt of Uniform strength, locking devices, Terminology of screw thread, Bolted Joint; Simple and Eccentric loading, Torque requirement for bolt tightening, Design of turnbuckle, Elastic analysis of bolted joints.                                                                                                                                                                                                        Welded and Riveted Joints:- Welded joints; stress relieving of welded joints, Strength of butt and fillet joint, Eccentric load in plane of weld, welded joint subjected to bending and torsion. Riveted joints; rivet materials, types of failure, strength and efficiency of joint, Caulking and Fullering, Longitudinal and Circumferential lap joint, eccentrically loaded riveted joint.
  5. Tolerances, Limits and Fits:- Introduction, Basic Definitions, Maxximum Metal Condition, Least Metal Condition, Grade of tolerance, Linear and Angular Tolerances, Fundamental deviations, Types of Fits and its basis, Gauge design,                  Basic Terminology of GD & T, Different tolerance characteristics, symbols and tolerance modifiers, Different aspects of datums, Parameters of surface texture and qualifications, Relation of surface roughness and various manufacturing processes, Surface Lay Indication.

Introduction : Types of Stresses and Theories of Failure

1
Types of Loads
2
Types of Stresses
3
Types of Strains
4
Modulus of Elasticity and Modulus of Rigidity
5
Factor of Safety
6
Service Factor or Application Factor
7
Modes of Failure
8
Theories of Failure
9
Principle Stresses and Maximum Shear Stress
10
Theories of Failure For Brittle Materials
11
Theories of Failure For Ductile Materials
12
Selection and Use of Theories of Failures

Application : Design of Simple Machine Elements

1
Design of Simple Machine Elements
2
Eccentric Loading
3
Cotter Joint
4
Knuckle Joint
5
Levers

Beams and Columns

1
Introduction to Beams Columns and Struts
2
Types of Supports of Beam
3
Types of Beam
4
Types of Load on Beam
5
Types (Modes) of Failures of Beam
6
Stresses In Beams
7
Deflection of Beam By Castigliano’s Method
8
Buckling of Columns
9
Determination of Buckling or Critical Load

Shafts and Keys

1
Introduction to Shafts
2
Material For Shafts
3
Design of Shaft
4
Design of Shaft Based on Strength
5
A S M E Code For Design of Shaft
6
Summary of Design of Shaft Based on Strength
7
Design of Shaft Based on Rigidity and Deflection
8
Design of Axle
9
Keys
10
Classification of Keys
11
Design of Sunk ( Parallel and Taper) Keys
12
Design of Kennedy Keys
13
Design of Splines
14
Summary of Design Keys
15
Torsional Loading of Components

Couplings

1
Introduction to Couplings
2
Muff or Sleeve Coupling
3
Split- Muff or Clamp or Compression Coupling
4
Rigid Flange Coupling
5
Bushed-Pin Type Flexible Flange Coupling

Power Screws

1
Introduction
2
Terminology of Power Screw
3
Forms of Thread
4
Torque Analysis of Square Threads
5
Torque Analysis of Trapezoidal and Acme Threads
6
Collar Friction Torque
7
Total Torque
8
Overall Efficiency of Powe Screw
9
Coefficient of Friction
10
Multiple Threaded Screws
11
Stresses in Power Screws
12
Summary of Stresses In Power Screws
13
Design of Screw Jack
14
Design of C-Clamp
15
Differential Screw
16
Compound Screw

Threaded Joints

1
Introduction
2
Various Forms of Threads
3
ISO Metric Screw Threads
4
Type of ISO Metric Screw Threads
5
Basic Types of Screw Fasteners
6
Locking Devices
7
Bolt of Uniform Strength
8
Torque Requirement For Bolt Tightening
9
Stresses In Screw Fasteners
10
Eccentrically Loaded Bolted Joints
11
Eccentric Load in Plane of Bolts
12
Eccentric Load Perpendicular To Axes of Bolts
13
Eccentric Load Parallel To Axes of Bolts
14
Eccentric Load on Circular Base
15
Turn Buckle ( Coupler)
16
Elastic Analysis of Bolted Joints Under Tension

Welded Joints

1
Introduction
2
Advantages and Limitation of Welded Joints
3
Types of Welded Joints
4
Welding Symbol System
5
Stresses in Butt Welds
6
Stresses in Fillet or Lap Welds
7
Strength of Welds
8
Axially Loaded Unsymmetrical Welded Joints
9
Design of Welded Structures
10
Welds With In- Plane Eccentric Loads
11
Welds Subjected to Bending Moment
12
Welds Subjected to Torsional Moment

Riveted Joints

1
Introduction to Riveted Joints
2
Advantage and Limitation of Riveted Joints
3
Types of Riveted Joints
4
Types of Lap Joints
5
Types of Butt Joints
6
Terminology in Riveted Joints
7
Caulking and Fullering
8
Types of Failures of Riveted Joints
9
Strength of Riveted Joint
10
Efficiency of Riveted Joint
11
Design of Riveted Joints In Pressure Vessels or Boilers
12
Lozenge Joint (Uniform Strength Joint)
13
Eccentrically Loaded Riveted Joints

Tolerances Limits and Fits

1
Introduction
2
Tolerances (Dimensional Tolerances)
3
FITS
4
Geometrical Tolerances or Geometric Dimensioning and Tolerancing (GD and T)
5
Surface Roughness
5
5 out of 5
1 Ratings

Detailed Rating

Stars 5
1
Stars 4
0
Stars 3
0
Stars 2
0
Stars 1
0

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Course available for 180 days
Enrolled: 1 student
Lectures: 108

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