Optimal segmented rotor design for the embedded electrical machine for the more electric aircraft

• Main Authors: Loh, Jenn Yen, Prabhu, Mathivanan Anand, Wang, Shuai, Joshi, Sunil Chandrakant, Viswanathan, Vaiyapuri, Ramakrishna, Shanmukha
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2019
• Subjects: Segmented Rotor Design; DRNTU::Engineering::Mechanical engineering; Electric Aircraft
• Online Access: https://hdl.handle.net/10356/104820; http://hdl.handle.net/10220/48835
• Institution: Nanyang Technological University

This study presents the design and analysis of the segmented rotor design for an electrical machine embedded onto the more electric aircraft gas turbine engine shaft. The high-speed operational environment imposes high stress levels due to centrifugal forces; thus, the feasibility of this segmented rotor topology for such application is explored and a suitable design is proposed to overcome mechanical stresses. Finite element structural analysis was performed to compare the mechanical behaviour of a different rotor segment fixing structure and the proposed design. Also, electromagnetic analysis is carried out on a high-speed switched reluctance machine to study the impact of a new design on machine electromagnetic performance.