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《第十一届IFTOMM世界大会论文集》2004年
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Study on Subsurface Stress for a New Disk-Type Variable Torque Slipping Clutch with Skewed Rollers

Kyosuke Ono  Kenji Mimura  
【摘要】:正In this paper a new disk type of the variable torque slipping clutch with skewed rollers (VTSCSR) is presented and investigated. It is comprised of two flat disks, a number of skewed cylindrical rollers, and a cage. The slipping torque is produced by the skewed rollers rolling and slipping between the two disks. Based on the integral equation of the Boussinesq solution, the contact stress is numerically calculated under the condition that the nonlinear equilibrium equations of the clutch elements are enforced to be satisfied. With the consideration of both surface contact stress and friction, the components of subsurface stress are calculated from the integration of the Mindlin's subsurface stress equations of concentrated force. A numerical solver is then successfully developed by which the characteristics of the disk-type VTSCSR, including the surface contact stress and von Mises stress etc, are calculated and illustrated for the typical designs. The influences on the distribution of the von Mises stress by applying various types of profiled rollers to the disk-type VTSCSR are also discussed. It is found that the full crown with two arcs profiled roller can approximately give rise to the axially uniform distribution of the von Mises stress and therefore satisfies the design principle of average damage of materials.

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