Temperature prediction in polymer gears: semianalytical modeling

• Tipo: Capítulo ou Parte de Livro
• Data: 2024

Autores

Carlos M C G Fernandes (Autor) FEUP

Livro

Título: Polymer Gears

Páginas: 219-247

ISBN: 978-044321457-8; 978-044321458-5

Indexação

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-017-WXK

DOI: 10.1016/b978-0-443-21457-8.00012-1

Abstract (EN): In this chapter, a semianalytical model is introduced to address a significant limitation in thermomechanical finite element models¿rendering them impractical for gear design optimization due to excessive time consumption. The bottleneck typically arises in the mechanical model, while fast solutions are commonly achieved in the steady-state thermal finite element model. Within this model, an analytical tooth contact analysis is proposed to precisely predict frictional heat flux. Efficient utilization of finite element analysis enables the rapid computation of steady-state temperature fields for polymer gears, thereby addressing the main limitation of thermomechanical finite element models. The analytical tooth contact analysis considers the polymer gear temperature on the elastic properties of the materials and allows for the prediction of key performance quantities such as load-sharing ratio, actual contact ratio, or frictional heat flux. Several convective heat transfer models proposed for polymer gears are implemented and compared with experiments. The influence of considering a constant or local coefficient of friction in thermal problems is highlighted. © 2025 Elsevier Inc. All rights are reserved including those for text and data mining AI training and similar technologies.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 28