Study on Friction Coefficient of Spiral Case with Cushion Layer in Large-Scale Hydropower Plant
Elastic cushion layer between the steel spiral case and surrounding concrete is often used as a structural type in large-scale hydropower plant in China. In view of the uncertainty of the optimal elastic coefficient of friction and the transfer mechanism of internal water pressure to the surrounding concrete, Spiral case with cushion layer of large-scale hydropower plant is simulated with ANSYS nonlinear finite element program, considering the slip contact characteristics between steel spiral case and the surrounding concrete, the more reasonable coefficient of friction between the steel spiral case and concrete is studied. This provides reliable theoretical analysis for the design of large-scale hydropower plants.
Dongye Sun, Wen-Pei Sung and Ran Chen
J. W. Zhang et al., "Study on Friction Coefficient of Spiral Case with Cushion Layer in Large-Scale Hydropower Plant", Applied Mechanics and Materials, Vols. 71-78, pp. 4248-4251, 2011