Optimization of Flex Spline Component of Harmonic Gear Drive Using Prepreg Composites


Dizeci Ş., Arıkan B.

10th World Congress on Mechanical, Chemical, and Material Engineering, MCM 2024, Barcelona, Spain, 22 - 24 August 2024 identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.11159/icmie24.106
  • City: Barcelona
  • Country: Spain
  • Keywords: Composite, Flex spline, Harmonic drive, Optimization
  • TED University Affiliated: Yes

Abstract

The harmonic drive gear offers superior precision and repeatability, outshining traditional gearing. This study aims to minimize stress and weight in the Flex Spline (FS) component while simultaneously enhancing torque capacity through the application of an anisotropic composite material. Initially, steel analysis was conducted for validation, using reference data to confirm the numerical model generated with the implicit ABAQUS solver. Subsequently, the hybrid FS design was introduced, employing a combination of carbon fiber and glass fiber composite materials bonded with adhesive resin. Analytical comparisons were made between these materials, and variations in adhesive bonding thickness were assessed for their impact on stress values. Consequently, the hybrid FS resulted in a 27.7% increase in working torque capacity and 38.5% in weight reduction.