AGE 502: FARM MACHINERY 11 – 3Units 1. Machine Design Processes, Procedures and Materials for Construction - Formulating a design procedure - Formulating a design procedure - Three types of design - Three types of design - Original design - Original design - Transitional design - Transitional design - Extensional design - Extensional design - Typical organisation of a design process - Typical organisation of a design process - Making the right engineering decision - Making the right engineering decision - Communicating ideas - Communicating ideas - Fundamental principle of professional engineering practice - Fundamental principle of professional engineering practice - Factors of safety (safety index) - Factors of safety (safety index) - Standards - Standards

Hardness Elasticity: stress and strain Elastic limit Modulus of elasticity Ultimate strength Shear modulus Bulk modulus 2. Selection, Strength and Properties, Stress Analysis Costing of Materials for Machinery Designs.

3. Analysis of Structures (a ) Bending (a ) Bending - Shearing force and bending moment - Shearing force and bending moment - Bending stress - Bending stress - Slope and deflection of beams - Slope and deflection of beams (b ) Torsion (b ) Torsion Typical design example: Shaft size design of a rubber roller machine

4. Operation of Agricultural Machinery (a ) Plows: - Mouldboard plow - Mouldboard plow - Chisel plow - Chisel plow - Disk plow - Disk plow (b ) Equipment for sowing, planting and transplanting - Crop establishment - Crop establishment - Planting methods/machines - Planting methods/machines - Types of materials for planting - Types of materials for planting - Hand planting - Hand planting Planting in intensive agricultural systems Basic components of planting equipment Planting patterns: –Drilling – random and precision drilling –Planting –Broadcasting

Machines and Implements for Fertilizer Application Handling and distribution of fertilizer and manures Handling and distribution of fertilizer and manures - Artificial fertilizer - Artificial fertilizer - Agronomic requirement - Agronomic requirement - Disadvantages of non uniform application - Disadvantages of non uniform application - Crop sensitivity to inaccurate fertilizer application - Crop sensitivity to inaccurate fertilizer application - Methods of application - Methods of application - Mechanisms - Mechanisms

6. Crop Protection Machinery Crop spraying Crop spraying Spraying equipment Spraying equipment Carrier and power input Carrier and power input Sprayer droplets or drops population generation Sprayer droplets or drops population generation Centrifugal mechanism Centrifugal mechanism Selective herbicide Selective herbicide Operation of sprayer Operation of sprayer Layout of basic field crop sprayer Layout of basic field crop sprayer Mechanical weeders for: Shallow weeds Deep rooted weeds Perenial rhyzomater weeds

7. Harvesting Practices and Equipment - Harvesting system in terms of usage - Cereal harvesting - Cereal harvesting - Operations involved in harvesting - Operations involved in harvesting Mechanized system Mechanized system –Combine harvester and operational components: Pickup mechanism Pickup mechanism Cutting and gathering Cutting and gathering Threshing unit Threshing unit Separating unit Separating unit Cleaning unit Cleaning unit Grain tank Grain tank

8. Root Crop Harvesting - Principles of harvesting operation - Cultivation operation required - Cultivation operation required - Separation operations - Separation operations - Shredding - Destroy aerial growth chemically. - Shredding - Destroy aerial growth chemically.

9. Principle and Practice of Testing and operating of Agricultural Machinery - Purposes of agricultural machinery testing improve the products improve the products protect the customer protect the customer inform the customer inform the customer Information categories Information categories User information User information Testing methods Testing methods