AU3025 Agricultural Vehicles Syllabus:
AU3025 Agricultural Vehicles Syllabus – Anna University Regulation 2021
COURSE OBJECTIVES:
The objective of this course is to provide the students with knowledge on various agricultural vehicles like Farm Machinery and Tractor
UNIT I TRACTORS
Tractors – Classification – types of tractors with their application, Power take off shaft – purpose – application – types, Track width necessity – different methods, hydraulic system in tractors – necessity, depth & draft control –types. Final drives – types of reductions – single reduction -double reduction final drives Farming equipment’s – types,- construction and working of Cultivator , Disc plough, Mouldboard plough, Harrow plough, rotary plough, thresher, sprayer. Farm Equipment for Marginal, Small & Medium land holding farmers – Power Tiller &
attachments, Power Weeder, Power Reaper, Power Sprayer, Irrigation Pump set, Electric Farm Equipment (viz Brush Cutter, Battery operated sprayer, Multi-purpose Power Tiller) MiniRobots.
UNIT II FARM MACHINERY DESIGN
Research and development procedure; Basic design principals of farm machines, implements and tools.Design of various components for performance, strength, and wear.Selection of materials of construction. Design of power transmission of elements, bearings, controls and safety devices. Application of design in primary tillage implements, secondary tillage implements, seed drill, planter, harvesting and threshing machine and its components. Reliability criteria in design.
UNIT III TRACTOR DESIGN PRINCIPLES
Trends in tractor design. Engine performance.Selection of engines for various types of tractors. Principles of similitude in engine design. Design of principle engine parts.Design of main, big and small end bearings.Design of cooling and lubrication systems. Design of tractor clutches, brakes, Transmission, chassis, steering, and hydraulics system. Design of seat and controls from ergonomic consideration. Introduction to computer aided design
UNIT IV FARM MACHINERY DYNAMICS, NOISE AND VIBRATION
Tractor chassis mechanics, hitching systems, 3-point hitch linkage design, hydraulic control of tractors, Determination of CG and moment of inertia, Dynamic stability and tractive ability of tractor, Tire selection. Ergonomics in tractor system design, noise and vibration effects, Design of operators’ seat and suspension, work-place area and controls, Strain gauges and instruments for the measurement of tractor engine power, torque, fuel consumption, draft and drawbar power, Precision agriculture, sensors, GPS, GIS, Variable rate applications.
UNIT V PRECISION FARMING MACHINERY TECHNIQUES
Concept and introduction of precision farming – Importance, definition, principles and concepts – Role of GIS and GPS – Mobile mapping system and its application in precision farming – design, layout and installation of drip and fertigation – georeferencing and photometric correction – Sensors for information gathering – UAV – geostatistics – robotics in horticulture – postharvest process management (PPM) – remote sensing
TOTAL = 45 PERIODS
COURSE OUTCOMES:
At the end of the course, the student will be able to
• Understand the fundamentals of Agricultural Vehicles.
• List the tools and techniques used in Agricultural vehicles.
• Explain the design of the farm machinery
• Identify the implementation and challenges in precision farming machinery techniques.
• Evaluate continuous improvement methods.
REFERENCES
1. Srivastava, A.K., Goering, C.E., Rohrbach, R.P. and Buckmaster, D.R. 2013. Engineering Principles of Agricultural Machines, 2nd Edition.ASABE, St. Joseph, USA.
2. Kepner, R.A., Bainer, R. and Berger, E.L. 1978. Principles of Farm Machinery. John Wiley and Sons, New York.
3. Singh, T.P. 2017. Farm Machinery. PHI Learning Pvt. Ltd., Delhi.
4. Singh, S. 2007. Farm Machinery Principles and Applications. ICAR, New Delhi.
5. MacMillan, R.H. 2002. Mechanics of Tractor Implement Performance. University of Melbourne.
6. Bernacki, H., Haman, J. and Kanafojski, Cz. 1972. Agricultural Machines: Theory and Construction. U.S. Dept. of Commerce, National Technical Information Service, Springfield, Virginia.
7. Liljedahl, J.B.,Turnquist, P.K., Smith, D.W. and Hoki, M. 2004. Tractors and their Power Units, 4th Edition.CBS Publishers & Distributors, New