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Modeling and Analysis

CAD Overview: Introduction to use of computer in Product Life Cycle. Software

for mechanical engineering CAD/CAM/CAE.

Geometric Modeling: Parametric sketching, constrained model dimensioning,

material addition and removal for extruded, revolved, swept and blended features.

References and construction features of points, axis, curves, planes, surfaces and

customized analysis features. Feature and sequence of feature editing. Cosmetic

features, chamfers, rounds, standard holes. File formats for data transfer. Feature

patterns, duplication, grouping, suppression. Assembly modeling. Assembly

analysis tools. Top-down vs. bottom-up design. Parametric relations and design

optimization parameters creation. Mass property analysis. Automatic productiondrawing creation and detailing. Software automation and customization tools.

Colors and rendering. Advanced features for non parallel blend, helical sweep,

swept blend, variable section sweep, draft, ribs, sketched holes. Mechanism design

and assembly. Customized design & CAD automation using user defined features

UDF.

Mechanical Design Analysis and Optimization: Design analysis for mass

properties, stress, thermal stress, fatigue, fluid flow, etc using CAD/CAE packages.Optimum design of machine components using multivariable non linear

optimization techniques using iterative CAD/CAE software tools.

Laboratory: Use of standard CAD and CAE packages for modeling of mechanical

elements, Assembly and Automated Drawing. Introduction to Surfacing, Sheet

metal, Assembly analysis, Mechanism design and motion analysis, CFD tools.

Optimization of mechanical system design using CAD/CAE software tools.

Projects on mechanical systems design and analysis.

Computer Control of Machine Tools

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Introduction: Fundamental concepts in numerical control. Need of N.C. in machines tools, its

advantages. Structure of NC System. Economics of NC for m/c tools.

Part Programming: Block format and codes, tool length and radius compensation, flexible

tooling, tool path simulation on lathe and milling, Advanced programming features. Computer

assisted part programming. The APT language: Geometric, motion, post processor and auxiliary

statements, Compilation control commands, repetitive macro programming.

N.C. M/c Tools: Types, definition and designation of control axes, Constructional details of N.

C. m/c tools, MCU structure and functions, Methods of improving accuracy and productivity

using NC, Problems with conventional NC.

Numerical Control of M/c Tools: NC, CNC, DNC, Adaptive control types, uses & benefits;

Advantages of CNC, DNC their structure, combined CNC/DNC systems.

System Devices: drives, feedback devices, counting devices, DAC and ADCs, Interpolator

systems, Control loop circuit elements in PTP system, contouring system. Incremental and

absolute systems,

Control Systems: Control systems for positional control and tool changing systems, Optical,

pneumatic, hydraulic, electro-mechanical, and electromagnetic control systems, The digital

computer and its functioning for m/c control, microprocessor in CNC.

Tooling For N. C. Machines: Tool and zero presetting, Work holding and setting up of CNC

machine.

Geometric Modeling For NC Machining: Machining of surfaces, Automatic NC program

generation from CAD models, Mould, Casting and Die design and manufacture using

CAD/CAM software.

Laboratory: Exercises in manual part programming of Lathe and Milling machines. Use of

CAM software for simulation of turned and milled parts and simple surfaces. Automatic Cutter

location data generation from CAD Models in APT format and Post processing for machining on

CNC machines. Mould, Casting and Die design and manufacture using CAD/CAM software.

Mechatronics

Introduction: A new way of product design Integration of Mechanical Engg., Electronics &

Control Engg. and Computer Science.

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Physical and Mathematical Modeling of Dynamic Systems: Equations of motion,

transforming, physical model to Math. Model, linearization, Frequency response, component

interaction. Control Systems: Performance specifications, Transfer functions, Stability,

Controller types and their design using frequency domain and Laplace domain method, PID

control. Digital Control z-transforms, problems in analogue to digital conversion-Nyquist

frequency, Digital controller design.

Sensors and Actuators: Electronic, electromechanical, electro-hydraulic, etc. Electronics: AD

and DA converters, Op Amps, Microprocessors, Digital signal processing, Logic Circuit

Devices, Gates- AND, OR, NAND etc. and combinations.

Analogue, Digital And Hybrid Mechatronics Systems: DC Motor control, POTS and Analog

Control, Stepper Motor Control-Encoder, Microprocessor, Digital Control.

Study of Some Mechatronics Devices: Hard disk drive, dot matrix printer, optical sensing and

control mechanism in NC machine tools etc.

Group Projects: Design and Assembly of a Mechatronics Machine (examples: An automated

Braille encryptor, Accurate x-y-z positioning device, Electromechanical CAM-FOLLOWER

Mechanism, R-Theta plotter etc.)

Computer Programming and Data Structures

The Turbo C++ Language: Basics of programming in C, C++,VC++: Algorithms and flow

charts, character set, Identifiers and keywords, Data types, Declarations, Expressions, statements

and symbolic names,. Input- output functions. Preparing and running a complete simple C++

program in TC/VC++ environment. Loops and decisions, Functions, arrays, structures, classes

and unions, operator overloading, pointers, Files and Streams. Introduction to graphics

programming in TC/VC++ environment. Object Oriented Programming (OOP).

Data Files: create, open, close, process, formatted and unformatted data files.

Data Structures: Stacks, queues, lists, trees, and their applications.

Laboratory: Practice in programming of the concepts covered in Lecture from the point of view

of programming requirements in other subjects on the TC/VC++ environment.

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Research Methodology

Nature and Objectives of research; Methods of research: historical, descriptive andexperimental.

Study and formulation of research problem. Scope of research and formulation of hypotheses;

Feasibility, preparation and presentation of research proposal.

Introduction to statistical analysis: Measures of central tendency and dispersion: mean,median, mode, range, mean deviation and standard deviation.

Regression and correlation analysis.

Probability and probability distributions; Binomial, Poisson, Geometric, Negative binomial,

Uniform, Exponential, Normal and Log-normal distribution. Basic ideas of testing of hypotheses;Tests of significance based on normal, t and Chi-square distributions. Analysis of variance

technique.

Design of experiments: basic principles, study of completely randomized and randomized block designs.

Edition and tabulation of results, presentation of results using figures, tables and text, quoting of

references and preparing bibliography. Use of common softwares like SPSS, Mini Tab and/or Mat Lab. For statistical analysis.

Reference:

1. Borth, Wayne C, et.Al., The Craft of Research: Chicago Guides to Writing Edition andPublishing.

2. Johnson, R.A., Probability and Statistics, PHI, New Delhi.3. Meyer, P.L., Introduction to Probability & Statistical, Applications: Oxford, IBH.

4. Hogg, R.V. & Craig, A.T., Introduction to Mathematical Statistics, MacMillan.5. Goon, A.M., Gupta, M.K. & Dasgupta, Fundamentals of Statistics, Vol.I: World Press.

6. Gupta, S.C. & Kapoor, V.K., Fundamentals of Mathematical Statistics, Sultan Chand &Sons.

Robotics

Introduction: Definition of a Robot, Economic aspects in robot applications w.r.t. quality and

productivity. Robot classifications and applications.

Robot Kinematics: Homogeneous co-ordinates and co-ordinate transformations, Forward and

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inverse kinematics

Robot Dynamics: Introduction to Lagrangean and Newton-Euler formulations Robot in Work Place: Work cell organisation in robotics environment, Work Cell Design and Control.

Sensors and Vision: Tactile, Proximity and Range sensors in robots; Velocity sensors, RobotVision. Introduction to image processing.

Methods of Robot Programming: Introduction to on-line and off-line Robot programmingmethods

Laboratory: Exercises in programming of robots. Exercises in design and layout of Robot

workplace. Exercises in Programming of mobile robots using simple mobile robot kits. Exercisein Robot sensors, vision and image processing using simple robot kits.

Computer Integrated Manufacturing Systems

Introduction: Types of production systems and their automation. CAD/CAM integration.

Concept of FMS and CIMS.

Elements of a General CIM System: Types of CIM systems. CAD-CAM link for CIMS.Manufacturing data base in a CAD/CAM system. Benefits of CAM, FMS and CIMS. Automated

material handling systems, equipment and their functions. Integration of Robots in CIMS,Automatic Storage and Retrieval Systems (AS/RS), Carousel. Palletization and fixtures. In

process interfacing of storage with manufacture.

CIMS configurations: DNC based factory management and control, Integrated CAD/CAMsystem and shared database, Factories of the future. Impact of implementing CIMS on society,

Introduction to rapid prototyping, and rapid tooling, concept of concurrent engineering. ReverseEngineering.

Group Technology: Concept and terminology, part family formation, classification and coding

systems for components, Group Technology machine cells.

Computer Aided Process Planning: CAPP and route sheet development, CAPP system,Computer aided plant layout

Computer Aided Production Planning and Control: Inventory control and MRP, Computer

aided cost estimation. Computer aided shop floor control, process monitoring. Computer aidedInspection & Quality Control, SQC, SPC. Use of 3D scanner as a QC tool Networking:

Introduction to fundamentals of computer communications, networking, computer-machine-

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personnel communication links. Network architectures & techniques. Information flow innetworks, network standards.

CIM Database and Database Management Systems: Types, Management Information

System, Manufacturing data preparation. Shop floor data collection systems, shop floor control,

sensors used, Tool management system, automatic identification systems, Barcode system.Product life cycle management.

Laboratory: Study of CIMS/FMS systems using VRCIM software; Study & use of 3D scanner for reverse engineering and QC; Surface modeling and manipulation for reverse engineering

using standard CAD package; Die design and manufacturing from CAD model for reverseengineering.

Industrial Automation

Introduction to Factory Automation and Integration: Basic Concepts, types of automation,

automation strategies.

Introduction to Hydraulics/Pneumatics controls and devices: Simple systems for obtainingmotions in combination or in sequence by the use of hydraulic, pneumatic automation devices

and controls. Fluid Power Control: Fluid Power Control elements and standard graphicalsymbols for them, Construction and performance of fluid power generators, Hydraulic &

pneumatic cylinders - construction, design and mounting, Hydraulic & pneumatic valves for pressure, flow & direction control, Servo valves and simple servo systems with mechanical

feedback, Simple hydraulic and pneumatic circuits.Pneumatic Logic Circuits: Boolean Algebra,Truth tables, Un-complementation algorithm and Karnaugh Maps, Design of pneumatic logic

circuits for a given time displacement diagram or sequence of operation. Pneumatic safety andremote control circuits and their applications to clamping, traversing and releasing operations.

Program logic controllers. Modern developments. Automatic Transfer Systems: Introduction toautomatic transfer, feeding and orientation devices. Automatic feeding using- vibratory and

mechanical feeders, feed tracks, Escapements, Part-placement Mechanisms and Robots.Orienting devices. Designing Parts for feeding, manual and automatic assembly and Robotic

Assembly. Automatic loading; types of loading facilities and their purpose. Magazines, bunker loading facilities. Work flow lines and automatic transfer machines; classification; design and

applications. Analysis of automated flow-lines: Reliability and efficiencies of automatic transfer machines.

Assembly automation: Types of assembly systems, assembly line balancing, performance and

economics of assembly systems.

Laboratory: Practice of the concepts covered in Lectures. Design and simulation of Hydraulic/Pneumatic circuits on software. Exercise on basic Pneumatic circuits, control of single

acting & double acting cylinders, Speed control of Pneumatic cylinders- inlet pressure & exhaust

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control, air-bleed control, Use of HYDRAUSIM, Designing of combinational/ sequential pneumatic logic circuits, Simulation of transfer systems using simulation software.

Computational Methods in CAD

Approximate Solution Methods: Ritz and Rayleigh Ritz methods, Method of weighed

residuals, general concepts, point collocation, subdomain collocation, least squares, Galerkin.

Finite Difference Method: Characteristics and classification of PDE, Solution of elliptic,hyperbolic & parabolic PDE using Finite Difference Method.

Introduction to Finite Element Method: Introduction to variational calculus, the differential of a function; Euler-Lagrange equation, geometric & natural boundary conditions, Basic Concept of

Finite Element Method, principle of potential energy; 1D elements, Derivation of Stiffness and

Mass matrices for a bar, a beam and a shaft, Comparison with Analytical results; Interpolationand Shape functions; Solution of static problems and case studies in stress analysis of mechanical

components; FEA using 2D and 3D elements; Plain strain and plain stress problems, FE using plates / shell elements;

Isoparametric Elements and Analysis using Isoparametric Elemets.

Importance of Finite element mesh, Automatic meshing techniques; Case studies using FEM for

Design of simple element geometries such as a tapered bar, a plate with a hole Laboratory:Practice of the concept covered in Lecture. Use of softwares for Finite Element analysis.

Computer Aided Design

Introduction: Definition and scope of CAD/CAM. Introduction to Design process and role of

computers in the design process. Hardware and Software in CAD/CAM applications withgraphics input and output devices.

Transformations: 2D and 3D transformations.

Analytical curves with advantages, disadvantages, comparison with parametric curves.

Geometric Modeling Curves and Surfaces: Representation, Wire Frame models, parametric

representations, parametric curves and surfaces. Manipulations of curves and surfaces.Geometric Solid Modeling: Solid models, Fundamentals of Solid Modeling, Half -spaces,

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Boundary Representation (B-rep), Constructive Solid Geometry (CSG), Sweep Representation,Analytic Solid Modeling.

CAD/CAM Data Exchange Formats: Types of File formats & their exchange, graphics

standards. Laboratory: Practice on available CAD Packages. Computer programming for

Geometric Modelling of Curves, Surfaces & Solids. Projects involving assembly and kinematicanalysis of mechanisms. Study and use of Reverse Engineering tools, surface modeling in anyavailable CAD package.

List of Electives I

Artificial Intelligence

Basic concepts of artificial intelligence, problem formulation and solution techniques. Expert

systems. Knowledge Representation, Knowledge Acquisition, Inference Mechanisms.Intelligence for manufacturing tools, manufacturing brain, eye and hand, Trends in robot

intelligence, Case studies in the application of artificial intelligence in manufacturing. ANN, GAtechniques for AI. Search techniques & solutions to AI problems.

Laboratory: Development of program to differentiate traditional programming and AI

programming, case studies for: Game playing, language processing, types of search techniques,expert systems, genetic algorithms, ANN etc

Computational Fluid Dynamics

Introduction: Motivation and role of computational fluid dynamics; concept of modeling and

simulation.

Governing Equations of Fluid Dynamics: Continuity equation; momentum equation; energyequation; various simplifications; dimensionless equations and parameters; convective and

conservation forms; incompressible invisid flows Basic flows; source panel method; vortex panelmethod.

Nature of Equations: Classification of PDE, general behavior of parabolic, elliptic and

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hyperbolic equations; boundary and initial conditions.

Finite Difference Method: Discretization; various methods of finite differencing; stability;method of solutions.

Incompressible Viscous Flows: Stream function-vorficity formulation; primitive variableformulation; solution for pressure; applications to internal flows and boundary layer flows.

Laboratory: Development of softwares for CFD.

Mechanism Design

Introduction to Kinematics and Mechanisms: Motion, The four bar Linkage, The science of

Relative motion, Kinematic diagrams, six-bar chains, Degrees of freedom, Analysis vs.Synthesis.

Mechanism Design Philosophy: Stages of design, the synthesis process, Design categories andmechanism parameters.

Mechanism Analysis: Displacement and velocity analysis, acceleration analysis. Kinematic

Synthesis of Mechanisms: Number synthesis-The associated linkage concept. Graphicalmethods, tools and computer programming for synthesis of mechanisms for two, three and four

prescribed positions, path generation, prescribed and un-prescribed timings. Analytical SynthesisTechniques. Function and motion generation. Number of prescribed positions vs. Number of

Free Choices. Extension of Three-precision-Point Synthesis to Multi-loop mechanisms.

Dynamics of Mechanisms: Inertia forces, Kineto-static Analysis by complex numbers,Superposition method, Matrix Method. Time response, modification of time response of

mechanisms. Virtual work. Lagrange Equations of motion. Free vibration of systems with onedegree of freedom. Decay of free vibrations. Forced vibrations of systems with one degree of

freedom. Rotor balancing. Introduction to Force and Moment balancing of Linkages. Computer program for Force and Moment balancing. Elastic beam element in Plane Motion. Displacement

fields for Beam element. Element and system mass and stiffness Matrices. Spatial Mechanisms:Transformations for spatial mechanisms, Analysis of spatial mechanisms. Link and Joint

Modeling with Elementary Matrices. Kinematic analysis of an Industrial Robot, position,velocity and acceleration analysis.

Laboratory: Practice of the concept covered in Lecture. Use of Pro-E software for simulation of

Mechanisms.

Machine Tool Design

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General requirement of machine tool design: Techno-economic pre-requisites. Machine tool,

kinematics structure & mechanical, hydraulic and electrical drives. Design of hydrostatic,

hydrodynamic and antifriction guide ways, design of spindles, spindle supports and power

screws. Machine tool dynamics; dynamic characteristics of the cutting process and machine tool,stability analysis. Testing of machine tools.

List of Electives II

Rapid Prototyping

Classification of manufacturing processes, Different Manufacturing Systems, Introduction to

Rapid Prototyping (RP), Need of RP in context of batch production, FMS and CIM and its

application; Basic Principles of RP, Steps in RP, Process chain in RP in integrated CAD-CAM

environment, Advantages of RP; Classifications of different RP techniques based on raw

material, layering technique (2D or 3D) and energy sources; Process Technology and

Comparative study of :- Stereo-lithography (SL) with photo-polymerisation, SL with liquidthermal polymerization, Solid foil polymerization, Selective laser sintering, Selective powder

binding, Ballastic particle manufacturing both 2D and 3D, Fused Deposition Modelling,Shape Melting, Laminated Object Manufacturing, Solid Ground Curing, Repetitive Masking and

deposition, Beam Inference Solidification, Holographic Interference Solidification, SpecialTopic on RP using metallic alloys, Programming in RP, Modelling, Slicing, Internal Hatching,

Surface Skin Fills, Support Structure.

Interactive Computer Graphics

Computer Hardware: Introduction to architecture of graphics workstation, Display processors.

Basic drawing algorithms: DDA, Breshnham or mid point line, circle, ellipse algorithms.Interactive Graphical Techniques And Tools: Geometric modifiers, dragging, rubber-banding,

names, Layers, Colours, Grids, Groups. Interactive computer programming. Graphic User Interface features, design and use.

Graphic Manipulations And Editing: Object selection methods, manipulation and editing

operations.

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Display Description: Screen coordinates, user coordinates; Graphical data structures, Displaycode generation; Graphical functions.

Graphics Software Package Design: Primitive (constants, actions, operators, variables),

plotting and geometric transformations. Viewing, windowing transformation, line and polygon

clipping algorithms.

Projections: Perspective, parallel. 3-D Graphics: Hidden line and Surface elimination,

Transparent solids, shading, colouring, rendering.

Computer Animation: Conventional and computer animation, Animation systems, types, andtechniques.

Mechanical Assembly: Assembly modeling, Representation schemes, Assembly sequences,

Assembly analysis.

Management Information Systems

Introduction: Concepts of Management, Information and Systems, History of InformationSystems. Philosophies Governing the development of Information Systems. Role of Information

Systems in Organizations: Local and Global context. Additional perspectives as benefits fromTechnical Trends and innovations, special characteristics and enigmas of information.

Information System and Business Processes: Analyzing information system from a business

perspective using work centred analysis of systems.

Information System Taxonomies: Transaction Processing system, Management InformationSystems. Decision support system, Executive Information Systems, Artificial Intelligence,

Expert Systems and Office Automation Systems.

System Analysis And Design: Information System Planning, introduction challenges, strategicissues, selecting systems, project management issues, Methodology and implications of system

analysis and design, SDLC, Prototyping, End user Development, Off the shelf software,outsourcing and application software.

Tools for Information System Development: Structural tools for analysis and design, tools to

represent system data and process, Tools for structured programming, tools to convert programsspecification into code.

Database Design and Management: Components of DBMS, Database models, Principles of

DBMS. Strategic Information Systems: Characteristics, and Plan, Business Information Systems,MARIS, Information systems for Manufacturing, Human Resource, Finance and Accounts, and

Quality.

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ER P: Introduction, concepts, applications, advantages and disadvantages.

sylabi cad

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