AI6504 - DESIGN OF AGRICULTURAL MACHINERY (Syllabus) 2013-regulation Anna University

AI6504 - DESIGN OF AGRICULTURAL MACHINERY (Syllabus) 2013-regulation Anna University

AI6504

DESIGN OF AGRICULTURAL MACHINERY

 LPTC
3003

OBJECTIVES:
• To introduce to the students to the basic concepts of design of agricultural machineries.
• To get through the detailed design & drawing of various components of agricultural machineries.

UNIT I

STRESSES IN MACHINE MEMBERS

9+3
Introduction to design process- factor influencing the machine design, selection of material based on mechanical properties- Direct, bending and torsional stress equations- calculation of Principal stresses for combined loading. Design of curved beams- factor of safety – theories of failure- stress concentration- design of variable loading- Soderberg and Goodman relations.

UNIT II

DESIGN OF POWER TRANSMISSION SYSTEMS

9+3
Selection of V-Belts and pulleys- selection of flat belts and pulleys- wire ropes and pulleys- selection of transmission chains and sprockets. Design of pulleys and sprockets.


UNIT III

DESIGN OF SHAFTS AND COUPLINGS

9+3
Design of solid and hollow shafts based on strength and rigidity- Design of keys, keyways and splines- Design of rigid and flexible couplings. Design of bolts and nuts - knuckle and cotter joints.

UNIT IV

DESIGN OF ENERGY STORING ELEMENTS

9+3
Design of helical, leaf, disc and torsional springs under constant loads and varying loads – Concentric torsion springs.

UNIT V

DESIGN OF GEARS AND BEARINGS

9+3
Gears - spur gear and helical gear - terminology - strength of gear teeth - Lewis equation - Buckingham equation. - Failure of gear teeth. Design of bearings – sliding contact and rolling contact types. – Cubic mean load – Design of journal bearings – Mckees equation – Lubrication in journal bearings – calculation of bearing dimensions.

TOTAL (L:45 +T:15): 60 PERIODS
(Note: Use of PSG Design Data book is permitted in the university examination)

OUTCOME:
• At the end of the course the student will have the knowledge on agricultural machineries and detailed design and drawing of various components.

TEXT BOOKS:
1. Khurmi R.S and Gupta J.K, A Textbook of Machine Design, Euarsia publication house, 2005.
2. Bhandari V.B, “Design of Machine Elements”, Tata McGraw-Hill Book Co, 2003.

REFERENCES:
1. Norton R.L, Machine Design – An Integrated Approach, Pearson Publications, 3rd Edition, 2006.
2. Srivastava A.K., Goering.C.E. and Rohrbach R.P. Engineering Principles of Agricultural Machines. Revised Printing by American Society of Agricultural Engineers. 1993.
3. Gary Krutz, Lester Thompson and Paul Clear., “Design of Agricultural Machinery”, John Wiley and Sons, New York, 1984.
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