Defect Diagnosis of Bevel Gear System: A Study of Experimental and Simulated Signal

Abstract

Gearboxes are widely used for effective transmission of power and motion. With continuous running of gear systems, faults such as chipped tooth, broken tooth, etc. are developed and further lead to their breakdown. An economical solution to analyze health of the gear system with different geometrical parameters and operating conditions is to develop an analytical/multibody dynamic model. In the present work, experiments are performed using gear fault simulator where prefabricated fault is given to the pinion of the gear system. Two different models of bevel gear system (8-DOF nonlinear dynamic model and a multibody dynamic model) are developed to compare the usefulness of the model with experiments and the model can incorporate change in operating conditions to know the health of the system. This article gives a path to practicing engineers to develop more reliable and robust gear systems and to identify incipient fault in the gear systems.