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The bearing stiffness effect on in-wheel motors
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In-wheel motors offer a promising solution for novel drivetrain architectures of future electric vehicles that could penetrate into the automotive industry by transferring the drive directly inside the wheels. The available literature mainly deals with the optimization of electromagnetically active parts; however, the mechanical design of electromagnetically passive parts that indirectly influence motor performance also require detailed analysis and extensive validation. To meet the optimal performance of an in-wheel motor, the mechanical design requires optimization of housing elements, thermal management, mechanical tolerancing and hub bearing selection. All of the mentioned factors have an indirect influence on the electromagnetic performance of the IWM and sustainability; therefore, the following paper identifies the hub bearing as a critical component for the in-wheel motor application. Acting loads are reviewed and their effect on component deformation is studied via analytically and numerically determined stiffness as well as later validated by measurements on the component and assembly level to ensure deformation envelope and functionality within a wide range of operations.
mathematical stiffness model
1.01 - Original Scientific Article
FS - Faculty of Mechanical Engineering
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Vol. 12, iss. 10, art. 4070
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ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Modeliranje v tehniki in medicini
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znotraj kolesni motorji
matematični model togosti
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