Abstract

This paper presents a study on root stresses of thin-rimmed. spur gears with spokes. The stress analysis by the 2.dimensional finite element method (FEM) and static loading test for thin-rimmed spur gears with a fan-shaped hole were carried out, and the effects of the rim thickness and the rim length on the root stress and the position of the maximum root stress were examined. Root stresses of thin-rimmed spur gears with spokes were computed by FEM, and the relation between the root stress and the position of the loaded tooth, the effect of number of spokes on the root stress, the position of the maximum root stress and the stress change during one revolution were investigated. Furthermore the tooth deflection of a spoked gear was also examined.

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