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Aerodynamic Improvements of Non-pneumatic Tires with Hexagonal Spokes
Technical Paper
2023-01-5016
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
Automotive Technical Papers
Language:
English
Abstract
A non-pneumatic tire (NPT) has a unique design that offers certain advantages
over the common pneumatic tire. This tire is resistant to punctures and immune
to blowouts. The present work aims to improve the aerodynamic design of the NPT
by keeping the structure of the spokes hexagonal but varying other design
features like tread pattern and adding material and filets. CAD designs were
developed using Fusion 360 software and computational fluid dynamics (CFD)
analysis is carried out using SimScale software. The variation of camber and yaw
angles has been conducted with both tread and material enhancement. There was a
decrease in drag and lift when the material was added to all the tires, but for
all variations of yaw and camber, an increase in drag and lift was seen. The
analysis is further extended to see the effect of a wheel well on the
aerodynamic performance of the NPT. A decrease in drag and lift of nearly 33.2%
and 94.5%, respectively, were observed with a wheel well.
Authors
Citation
Ponangi, B., Narain, C., Rajendra Prasad, K., and Athadkar, M., "Aerodynamic Improvements of Non-pneumatic Tires with Hexagonal Spokes," SAE Technical Paper 2023-01-5016, 2023, https://doi.org/10.4271/2023-01-5016.Also In
References
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