Development and Characterization of Coatings for Enhanced Performance of Electric Vehicle Traction Motor Bearings
Date3rd Jul 2023
Time10:30 AM
Venue MDS Seminar Hall Room No 412
PAST EVENT
Details
Modern mobility systems with alternate energy sources use electric motors to drive. The moving components in the traction motors are limited and are the main sources of noise. Bearings are the main power transmission elements in drive motors and are designed based on expected mechanical loads. However, the electric motor bearings experience both mechanical and electrical loads and are found to fail early resulting in increased noise and vibration. To minimize the passage of electric currents, a new coating for the bearings is developed in the current project. The insulating coating based on polyphenylene sulfide (PPS) is designed and developed using an integrated 3D printing process in the representative bearing steel samples. The novel approach followed resulted in a stable coating and the bond strength of the coating is estimated using standard pull-off tests. The cohesive strength estimated using experimental techniques is used in the cohesive zone modeling for assessing the coating strength in case of possible defects during processing using commercial finite element software, ABACUS®. The developed coating is found to have enough strength to withstand the stresses experienced in bearing races.
Speakers
Ms. K M Anita Yadav (ME20S029)
Department of Mechanical Engineering