Abstract

A simulation method was developed allowing simultaneous evaluation of dynamic behavior and ring stress for the estimation of the durability of metal pushing V-belts for CVT’s. The high rotational speed range of the CVT is simulated utilizing the finite element method used in crash analysis. This paper focuses on dynamic behavior of the pulley, and the simulation method, which was modified to allow the pulley stiffness to be reflected. The pulley stiffness values are found by applying static loading to the three-dimensional FEM model. As a result, it is found that the flexional stiffness affects the ring impact stress at the pulley entrance and exit. Furthermore, the mechanism of contact between the ring edge and pulley surface or the element due to the ring misalignment caused by the pulley flexion is clarified. For the first time, these results make it possible to obtain design guidelines for the pulley stiffness that includes consideration of belt durability.

References

1. (1) Saito, T. et al.: “Development of Metal Pushing V-Belt Stress Simulation for Continuously Variable Transmission,” Honda R&D Technical Review, Vol. 13, No. 1, pp. 125–130 (2001)
2. (2) Kanehara, S. et al.: “A Study on the Transmitting Mechanism of Pushing Block Type Metal Belts,” Honda R&D Technical Review, Vol. 7, pp. 49–67 (1995)
3. (3) Asama, H. et al.: “Drive Mechanism of Metal Pushing Type Belts, Automotive Technology,” Vol. 26, No. 2, pp. 78–81 (1972)
4. (4) Sauer, G.: Grundlagen und Betriebsverhalten eines Zugketten Umschlingungsgetriebes, Nr. 293, Duesseldorf: VDI-Verlag (1996)

Author (organization or company)

• Toshihiro SAITO（Tochigi R&D Center）
• Takemasa OKANO（Tochigi R&D Center）

Publication Information

Article of Honda R&D Technical Review Vol.14 No.1 (191 - 196)

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Citation Information