轮毂外形 meaning in English

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Puts forward the optimum design thought of the flywheel shaft system , designs the optimum method to match the mass " and value request by choosing the rod ' s shape and material , designs the concrete optimum method , and optimizes the mass and price request of the flywheel shaft system using the method ; 5 . the flywheel ' s and the shaft ' s dynamics equation under high speed rotation are built , and f . e . m
提出了碳纤维复合飞轮轴系的优化设计思想，设计了通过轮毂外形和材料的优化选取，来达到轴系的质量要求和成本要求的优化方法，以及具体的优化步骤，并利用该方法针对轴系的质量要求和成本要求进行了优化设计； 5