Mechanical Engineering Core Subjects and Electives Curriculum
Manufacturing Technology
Tooling for Conventional and Non-Conventional Machining
- Mould and die design, Press tools, Cutting tools.
- Holding tools: Jigs and fixtures, principles, applications, and design.
- Press tools: Configuration, design of die and punch; principles of forging die design.
Metrology
Metrology in tool wear and part quality, including surface integrity, alignment, and testing methods; tolerance analysis in manufacturing and assembly. Process metrology for emerging machining processes such as micro-scale machining, inspection, and workpiece quality.
Assembly Practices
Manufacturing and assembly, process planning, selective assembly, material handling and devices.
NC/CNC Machine Tools and Systems
Types of Automation
Fixed (or hard) and programmable (or flexible) automation: need, advantages, and applications of flexible automation over fixed automation.
Components and Their Functions in NC/CNC Machines
MCU, DPU, and CLU; Feed drives using stepper/servo motors and recirculating ball screw-nut system; Automatic Tool Changers (Tool Turret and Tool Magazine); Automatic Pallet Changer.
Basic Systems of NC and CNC Machines
Coordinate system; Control (open loop and closed loop); Dimensioning (absolute and incremental); Point-to-point and contour motion; Linear and circular interpolation.
CNC Machine Tools and Integrated Automation
Structure and working principle of CNC lathe and milling machine; Examples and use of CNC machines; Machining Centre (Vertical and Horizontal); Integrated Automation systems (DNC – Direct and Distributed or BTR and Dedicated system, FMS – FFMS, FMC, and FMM) – characteristics and applications.
Part Programming for CNC Machines
Manual Part Programming using ISO G and M Codes in CNC lathe and milling machine for simple jobs; Canned cycle. Computer Aided Part Programming using MACRO statements in APT for simple jobs in CNC lathe and milling machine.
Rapid Prototyping (RP)
Basic Process: CAD Model Creation, Conversion to STL format, Slicing the STL File, Layer-by-layer construction. Use of CMM and 3-D Camera for making virtual models.
Principles, systems, relative advantages, and applications of common RP methods:
- Stereolithography (SLG)
- Selective Laser Sintering (SLS)
- Fused Deposition Modeling (FDM)
- Laminated Objects Manufacturing (LOM)
- 3-D Printing
Design of Machine Elements
- Objective and scope of Mechanical Engineering Design; Design considerations; Review and selection of materials and manufacturing processes; codes and standards.
- Modes of failure; Design/allowable stress; Factor of Safety (FoS); Theories of failure – maximum normal stress theory, maximum shear stress theory, Distortion energy theory. Choice of failure criteria; Design for stability: buckling analysis – Johnson and Euler columns.
- Fatigue in metals; S-N curve; Endurance limit and fatigue strength; Stress concentration factors – effect of discontinuity, fillets, and notches; Effect of size, surface finish, stress concentration, and degree of reliability on endurance limit; Design for finite and infinite life; Goodman, modified Goodman, and Soderberg diagrams with respect to fatigue failure under variable stresses; Cumulative fatigue damage – Miner’s equation.
- Design of:
- Cotter joint
- Knuckle joint
- Fillet Welded joint of brackets under different types of loading.
- Bolted joints: Metric thread, standard sizes, use of lock nuts and washers; Applications in structures including brackets, turnbuckle; Pre-stressed bolts. Riveted joints: Unwin’s formula; Brief discussion on single, double, and triple row lap joints, butt joints with single or double strap/cover plate; simple strength design; joint efficiencies.
- Design of:
- Solid and hollow shafts, strength design of shafts, design based on torsional rigidity.
- Shaft coupling – rigid, pin-bush, and geared flexible type, alignment of coupling.
- Belt drives – geometrical relations, derivation of torque and power transmission by flat and V-belt drives, selection of belt from manufacturers’ catalogues, pulley.
- Chain drives – roller chains, polygonal effect, power rating, sprocket wheel, silent chain.
- Design of:
- Transmission screw, Screw jack.
- Helical compression spring – stress and deflection equations, stiffness, curvature effect: Wahl’s factor, springs in parallel and series.
- Multi-leaf springs – load-stress and load-deflection equations, Nipping.
- Analysis and design of sliding and rolling contact bearings; Design of transmission elements: spur, helical, bevel, and worm gears; Analysis of clutches and brakes.
Operational Research (Humanities – II)
Introduction to Operations Research (OR)
Historical background, scope of OR, features of OR, phases of OR, types of OR models, OR methodology, OR techniques and tools, structure of the mathematical model, limitations of OR.
Linear Programming (LP)
Introduction, Linear Programming Problem (LPP), requirements of LPP, mathematical formulation of LPP, case studies of LPP, applications, advantages, limitations.
Graphical Analysis of Linear Programming Problems
Graphical analysis, basic definitions, graphical methods to solve LPP, exceptional cases, important geometric properties of LPP.
Simplex Method
Standard form of LPP, fundamental theorem of LPP, solution of LPP – Simplex Method, the Simplex Algorithm, Penalty Cost Method or Big M-method, Two Phase Method, solved problems on minimization.
Duality in Linear Programming Problem
Importance of duality concepts, formulation of dual problem, economic interpretation of duality, sensitivity analysis.
Transportation Problem (TP)
Formulation of TP, Transportation Algorithm (MODI Method), the Initial Basic Feasible Solution, Moving Towards Optimality.
Assignment Problem
Mathematical formulation of the problem, Hungarian Method Algorithm, Travelling Salesman Problem.
Project Management Using CPM-PERT
Project Scheduling and PERT-CPM: Basic difference between PERT and CPM, PERT/CPM network components and precedence relationship, Project Management – PERT, Float calculation and its importance. Cost reduction by crashing of activity.
Queuing Theory
Basis of Queuing theory, elements of queuing theory, operating characteristics of a queuing system, queue discipline, service mechanism, classification of queuing models, [M/M/1]:{//FCFS} Queue System, numerical examples.
Inventory Management
Inventory classification, different costs associated with inventory, inventory models with deterministic demands (EOQ, EPQ, and price discount models), inventory classification systems.
Job Sequencing
Introduction to sequencing and scheduling models: n job two machines problem, n job three machines problem.
Decision Theory
Decision under certainty, Decision under risk, Decision under uncertainty: Laplace criterion, Maximin criterion, Minimax criterion, Savage Minimax regret criterion, Hurwicz criterion, Decision tree.
Replacement Theory
Replacement of capital equipment which depreciates with time, replacement by alternative equipment, Group and individual replacement policy.
Elective I: IC Engine & Gas Turbine (PE-ME601 A)
Introduction to IC Engines
Basic engine components and nomenclature, classification of engines, working principle of engines, comparison of 2-Stroke and 4-Stroke Engines; CI and SI Engines, Ideal and Actual Working Cycles and their analysis, Valve Timing Diagram.
Fuels
Fossil fuels, chemical structure of petroleum, properties of SI and CI Engine Fuels, Fuel Ratings: Octane Number, Cetane Number.
Carburetors & Fuel Injection
Air Fuel Mixture Requirements, construction and working of Simple Carburetor, calculation of Air-Fuel Ratio, parts of Carburetor. Requirement of Injection Systems, classification of Injection Systems, Fuel Feed pump, Injection Pumps, working principles of Governors, Nozzles and Fuel Injector, Injection in SI and CI Engines.
Combustion and Ignition Systems in SI and CI Engines
Normal and Abnormal Combustion in SI and CI Engines, Stages of Combustion, Detonation and Knocking.
Performance Parameters for IC Engines
Engine Power, Engine Efficiencies, Performance Characteristics, variables affecting performance characteristics, methods of improving engine performance, Heat Balance.
Modern Automotive Engines
Changes in Fuel injection methods in S.I and C.I engines, Common Rail Direct Injection System (CRDI), Gasoline Direct Injection (GDI), Variable Valve Technology (VVT), a brief review of design changes to achieve high efficiency.
Alternate Fuels for IC Engines
Need for use of alternate fuels. Use of alcohol fuels, Biodiesel, Biogas, and Hydrogen in engines.
Gas Turbine
Introduction to Gas Turbines, development, classification, and application of Gas Turbines, Ideal and Actual Cycles; Effect of Inter-cooling, Reheating, Regeneration, Combined cycle, and Cogeneration.
Gas Turbine Cycles for Aircraft Propulsion
Criteria of performance, intake, and propelling nozzle efficiencies, Simple Turbojet Cycle, the turboprop engine, Thrust augmentation, Gas turbine combustion systems, Combustion chamber designs, Gas Turbine Emissions.
Elective II: Principles of Management & Practices (PE-ME601 B)
Management Theory and Evolution
Definition, nature, importance, evolution of management thoughts – pre & post scientific era, contributions made by Taylor, Fayol, Gilbreth, Elton Mayo, McGregor, Maslow – covering Time & Motion Study, Hawthrone Experiments. Is management a science or art? Functions of manager, ethics in managing, and social responsibility of managers.
Planning & Control
Why Management process starts with planning, steps in planning, planning premises, types of planning, barriers to effective planning, operational plan, strategic planning, McKinsey’s 7-S Approach, SWOT analysis. Controlling: concept, Planning-control relationship, process of control, human response to control, dimensions of control, Management By Objectives (MBO).
Decision Making & Organizing
Nature, process of decision making, decision making under Certainty and Uncertainty, decision tree, group-aided decision, brainstorming. Organizing: concept, nature and process of organizing, authority and responsibility, delegation and empowerment, centralization and decentralization, concept of departmentation.
Staffing & Motivation
Concept, Manpower planning, Job design, recruitment & selection, training and development, performance appraisal, motivation, motivators and satisfaction, motivating towards organizing objectives, morale building.
Leadership & Communication
Defining leadership and its role, should managers lead, leadership style, leadership development, leadership behavior. Communication: Process, bridging gap using tools of communication, electronic media in communication.
Financial Management
Financial functions of management, Financial Planning, Management of Working Capital, Sources of Finance.
Marketing Management
Functions of Marketing, Product Planning & Development, Marketing Organization, Sales Organization, Sales Promotion, Consumer Behavior, Marketing Research and Information.