2026-04-272026-04-272026-02-27CAMPOS, Matheus Leão. Motores BLDC como alternativa eficiente para a mobilidade elétrica: modelagem e análise. Orientador: Marcos Aurélio Melo Junior. 2026. 61 f. Trabalho de Curso (Bacharelado em Engenharia Elétrica e Biomédica) – Faculdade de Engenharia Elétrica e Biomédica, Instituto de Tecnologia, Universidade Federal do Pará, Belém, 2026. Disponível em: https://bdm.ufpa.br/handle/prefix/9494. Acesso em:.https://bdm.ufpa.br/handle/prefix/9494This work presents the design, computational modeling and comparative analysis of a 5 HP (3.73 kW) Brushless DC (BLDC) motor developed for medium-sized electric vehicles, inclu-ding electric bicycles, motorcycles, small boats and light urban vehicles. The adoption of BLDC motors in these applications offers significant advantages over conventional technologies, inclu-ding higher energy efficiency (typically 85-97% compared to 70-85% of combustion engines), lower maintenance requirements (due to the absence of brushes), high torque-to-weight ratio and greater speed control accuracy. The motor design analyses were performed using the Finite Element Method (FEM) with Ansys Motor-CAD software. Two magnetic materials for the mo-tor core were considered: JFE 10JNEX900 (high performance grain-oriented electrical steel) and M250-35A (conventional silicon steel). Results indicated that JFE 10JNEX900 showed lower core losses (180.05 W vs. 184.8 W for M250-35A under load) and better thermal stabi-lity, while M250-35A showed 2.8% higher average torque (12.647 Nm vs. 12.349 Nm). The efficiency map highlighted an optimal operating range around 3000 rpm and 20 Nm, where the motor achieved up to 97% efficiency. Besides the intrinsic advantages of BLDC motor topo-logy, the study showed that careful selection of materials and construction configurations can increase energy performance by up to 22% in vehicular applications. These results provide re-levant technical support for the development of electric propulsion systems, contributing to the consolidation of the energy transition in the medium-capacity transport sector.Acesso AbertoMotor BLDCEficiência energéticaModelagem por elementos finitosMobilidade elétricaVeículos elétricosBLDC motorEnergy efficiencyFinite element modelingElectric mobilityElectric vehicles.CNPQ::ENGENHARIAS::ENGENHARIA ELETRICATrabalho de Curso - Graduação - Monografia