Eventos Anais de eventos
DINAME 2023
XIX International Symposium on Dynamic Problems of Mechanics
Fatigue based topology optimization of metallic flexible disc coupling
Submission Author:
Gabriel Dantas Gomes , BA
Co-Authors:
Gabriel Dantas Gomes, Felipe Wenzel da Silva Tuckmantel, Katia Lucchesi Cavalca Dedini
Presenter: Gabriel Dantas Gomes
doi://10.26678/ABCM.DINAME2023.DIN2023-0016
Abstract
Misalignment in rotating machinery is a frequent event, being considered the second most prevailing cause of failure after unbalance. The types of misalignment can be axial, parallel, angular or a sum of these. Flexible disc coupling works as a mean to transfer torque while reducing restitution moment generated by small misalignment between coupled parts. Although many advanced techniques are available to apply a precise alignment between shafts, every machine has some degree of misalignment. When under misalignment, flexible coupling generates restitution forces and moments which are introduced into the system, thus causing additional vibration. The goal of this work is to perform a topology optimization, with aid of Finite Element Method, on a circular disc coupling to achieve minimum restitution moment under angular misalignment while maintaining fatigue life safety factor similar to the original disc, as it is well known that with minimal moment the additional vibration caused by misalignment will also be smaller when compared to original circular disc. The component will be on linear elastic region. With minimal moment the additional vibration caused by angular misalignment will also be smaller when compared to original circular disc. Simulation results indicate optimized discs shapes have a restitution moment sixty percent lower, safety factor almost two times higher and lower tensions when compared to original circular disc.
Keywords
Flexible disc coupling, Angular misalignment, Topology optimization
