AGE 502: FARM MACHINERY 11 – 3UnitsAGE 502: FARM MACHINERY 11 – 3Units1. Machine Design Processes, Procedures 1. Machine Design Processes, Procedures

and Materials for Constructionand 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 - Fundamental principle of professional

engineering practiceengineering 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 Structures3. 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 ) TorsionTypical design example:Typical design example:Shaft size design of a rubber roller Shaft size design of a rubber roller machinemachine

4. Operation of Agricultural Machinery4. Operation of Agricultural Machinery

(a ) Plows:(a ) Plows: - Mouldboard plow- Mouldboard plow - Chisel plow- Chisel plow - Disk plow- Disk plow(b ) Equipment for sowing, planting and transplanting(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 plantingPlanting in intensive agricultural systemsPlanting in intensive agricultural systemsBasic components of planting equipmentBasic components of planting equipmentPlanting patterns:Planting patterns:– Drilling – random and precision drillingDrilling – random and precision drilling– PlantingPlanting– BroadcastingBroadcasting

Machines and Implements for Fertilizer ApplicationMachines and Implements for Fertilizer Application

Handling and distribution of fertilizer and Handling and distribution of fertilizer and manuresmanures - Artificial fertilizer- Artificial fertilizer - Agronomic requirement- Agronomic requirement - Disadvantages of non uniform - Disadvantages of non uniform applicationapplication - Crop sensitivity to inaccurate fertilizer - Crop sensitivity to inaccurate fertilizer applicationapplication - Methods of application- Methods of application - Mechanisms- Mechanisms

6. Crop Protection Machinery6. Crop Protection Machinery

Crop sprayingCrop spraying Spraying equipmentSpraying equipment Carrier and power inputCarrier and power input Sprayer droplets or drops population generationSprayer droplets or drops population generation Centrifugal mechanismCentrifugal mechanism Selective herbicideSelective herbicide Operation of sprayerOperation of sprayer Layout of basic field crop sprayerLayout of basic field crop sprayerMechanical weeders for:Mechanical weeders for:Shallow weedsShallow weedsDeep rooted weedsDeep rooted weedsPerenial rhyzomater weedsPerenial rhyzomater weeds

7. Harvesting Practices and Equipment7. Harvesting Practices and Equipment

- Harvesting system in terms of usage- 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:Combine harvester and operational components:

Pickup mechanismPickup mechanism Cutting and gatheringCutting and gathering Threshing unitThreshing unit Separating unitSeparating unit Cleaning unitCleaning unit Grain tankGrain tank

8. Root Crop Harvesting8. Root Crop Harvesting

- Principles of harvesting operation- Principles of harvesting operation

- Cultivation operation required- Cultivation operation required

- Separation operations- Separation operations

- Shredding - Destroy aerial growth - Shredding - Destroy aerial growth chemically.chemically.

9. Principle and Practice of Testing and 9. Principle and Practice of Testing and operating of Agricultural Machineryoperating of Agricultural Machinery

- Purposes of agricultural machinery - Purposes of agricultural machinery testingtesting improve the productsimprove the products protect the customerprotect the customer inform the customerinform the customer Information categoriesInformation categories User informationUser information Testing methodsTesting methods