ME- 303 E MACHINE DESIGN -I
ME- 303 E MACHINE DESIGN –I
Sessional : 50 Marks
Theory : 100 Marks
Unit I Design Philosophy: Problem identification- problem statement, specifications, constraints, Feasibility study-technical feasibility, economic & financial feasibility, societal & environmental feasibility, Generation of solution field (solution variants), Brain storming, Preliminary design, Selection of best possible solution, Detailed design, Selection of Fits and tolerances and analysis of dimensional chains.
Unit II Selection of Materials: Classification of Engg. Materials, Mechanical properties of the commonly used engg. Materials, hardness, strength parameters with reference to stress-strain diagram, Factor of safety.
Unit III Mechanical Joints: ISO Metric Screw Threads, Bolted joints in tension, Eccentrically loaded bolted joints in shear and under combined stresses, Design of power screws, Design of various types of welding joints under different static load conditions.
Unit IV Riveted Joints, Cotter & Knuckle Joints: Design of various types of riveted joints under different static loading conditions, eccentrically loaded riveted joints, design of cotter and knuckle joints.
Unit V Belt rope and chain drives: Design of belt drives, Flat & V-belt drives, Condition for Transmission of max. Power, Selection of belt, design of rope drives, design of chain drives with sprockets.
Unit VI Keys, Couplings & Flywheel: Design of Keys – Flat, Kennedy Keys, Splines, Couplings design – Rigid & Flexible coupling, turning Moment diagram, coefficient of fluctuation of energy and speed, design of flywheel – solid disk & rimmed flywheels.
Unit VII Clutches: Various types of clutches in use, Design of friction clutches – Disc. Multidisc, Cone & Centrifugal, Torque transmitting capacity.
Unit VIII Brakes: Various types of Brakes, Self energizing condition of brakes, Design of shoe brakes – Internal & external expanding, band brakes, Thermal Considerations in brake designing.
Text Books:
Mechanical Engg. Design – First Metric Editions: Joseph Edward Shigley-MGH, New York.
Design of Machine Elements – V.B. Bhandari – Tata McGraw Hill, New Delhi.
PSG Design Data Book
Reference Books :
Engineering design – George Dieter, MGH, New York.
Product Design and Manufacturing , A.K.Chitale and R.C.Gupta, PHI.
Machine Design An Integrated Approach: Robert L.Norton, Addison Wesley.
Machine Design : S.G. Kulkarini – Tata MacGraw Hill.
Design of machine elements-C S Sharma, Kamlesh Purohit, PHI.
Note:
- In the semester examination the examiner will set 8 questions, at least one question from each unit. Students will be required to attempt 5 questions.
- The paper setter will be required to mention in the note in the question paper that the use of only PSG Design Data book is permitted.
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