Modified Design of a Precision Planter For a Robotic Assistant Farmer

Chapter 4- Stress Analysis Using Finite Element Method .................................................................... 76 
4-1- Introduction ..................................................................................................................................... 76 
4-2- Planter parts stress analysis using ANSYS Workbench .................................................................. 77 
4-2-1- Depth control link .................................................................................................................... 77 
4-2-2- Disc Holder .............................................................................................................................. 84 
4-2-3- Seed drop tube .......................................................................................................................... 88 
4-2-4- Spring connection .................................................................................................................... 89 
4-2-5- Press wheel link ....................................................................................................................... 93 
4-2-6- vertical pull bar ........................................................................................................................ 96 
4-2-7- Horizontal pull bar ................................................................................................................. 101 
4-3- Summary ....................................................................................................................................... 105 
Chapter 5-Prototyping, test-rig and verification.................................................................................. 106 
5-1- Fabrication of the prototype .......................................................................................................... 106 
5-2- Tests .............................................................................................................................................. 107 
5-2-1- Outdoor tests: ......................................................................................................................... 109 
5-2-2- Indoor tests ............................................................................................................................. 112 
5-3-Summary ........................................................................................................................................ 122