School of Mechanical, Electrical and Manufacturing Engineering


Gajarajan Sivayogan obtained a degree in Mechanical Engineering from the University of Hull in 2015, where he also obtained the Barnes Wallis Memorial Award for his performance and effort. He then went on a placement with Jaguar Land Rover in the aerodynamics division.

His work focused on optimising external flow simulations. Mr Sivayogan started his PhD in 2016, under EPSRC Centre for Doctoral Training in Embedded Intelligence (CDT-EI) in Loughborough University and in collaboration with AVL GmbH. The PhD research focuses on the tribodynamics of hypoid gear pairs with the main aim to improve techniques for identifying and predicting frictional losses, particularly where the Elastohydrodynamic Lubrication (EHL) regime is dominant.

PhD Thesis Title: Tribo- dynamic analysis of bevel and hypoid gears

Government regulations, world bodies and customer demand dictate the approach and methodology behind all automotive manufacturing companies. Customers expect improved refinement over successive generations of vehicles. Thus, there is a need to understand and evaluate what factors attribute to these aspects. The most influential aspects are: power loss, noise vibration and harshness and durability issues. Majority of these issues arise in the drivetrain of automotive vehicles. Hence, this PhD focuses to further develop the understanding on the behaviour of lubricant in hypoid and bevel gear contacts. Particularly the regime of lubrication known as Elastohydrodynamic Lubrication (EHL).


Sivayogan G, Mohammadpour M, Rahnejat H, Sopouch M, Offner G (2017). Elastohydrodynamic Analysis of Hypoid Gear Contacts With Variable Geometry and Kinematics, 6th World Tribology Congress, Beijing, China.

Oglieve C, Sivayogan G, Mohammadpour M, Rahnejat H (2017). Lubricated Loaded Tooth Contact Analysis (LLTCA) for Spur Gear Pairs. International Conference on Advance Vehicle Powertrains, Hangzhou, China. 2)

Athena Swan Bronze award

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The Wolfson School of Mechanical, Electrical and Manufacturing Engineering
Loughborough University
LE11 3TU