Abstract
A significant portion of the wheel assembly's safety is determined by the performance of the spindle and hub. In conventional designs, weight-to-strength ratio, connection configuration, etc., have barely been optimized. The purpose of this paper is to apply an optimization process through the design of experiments (DoE) concept to hub and spindle designs. To achieve better efficiency, lighter materials are targeted for use in a 3-wheel solar-powered vehicle. Using FEM analysis, both designs were statically analysed. Using Taguchi method, experiments were designed for both maximum safety and minimum weight, subjected to geometrical boundary constraints with regard to maximum safety and minimum weight. Each part was evaluated based on its impact on performance and safety. Both spindle and hub have been optimized to provide a reliable factor of safety and light weight.
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