Authors: Research Scholar Vaibhav Gajbhiye, Assistant Professor Mr.Praveen Patidar, Assistant Professor Mr.Saurabh Verma
Abstract: This study investigates the structural behavior of a Power Take-Off (PTO) shaft used in agricultural applications under operational loading conditions using Finite Element Analysis in ANSYS. A detailed CAD model of the PTO shaft, including critical geometric features such as splines and fillet transitions, was developed to represent real-world configurations accurately. Structural analysis was performed by applying combined torsional and bending loads to simulate typical field conditions experienced during power transmission to implements. The analysis evaluated equivalent (von Mises) stress distribution, total deformation, and equivalent elastic strain to identify critical stress concentration regions and assess the shaft’s structural integrity. Results indicated that maximum stresses and strains were concentrated near the spline and fillet regions, consistent with areas of geometric discontinuity, while deformation profiles reflected cantilever behavior with the highest displacement at the free end. The study confirmed that the stress, strain, and deformation levels in the PTO shaft made of SAE 4140 remained within permissible limits under applied loads, ensuring operational safety and reliability. These findings provide valuable insights for design validation and optimization of PTO shafts to enhance durability and performance in agricultural machinery.
