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An analytical solution for optimum design of shrink-fit multi-layer compound cylinders

Sharifi, M ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.1142/S1758825112500433
  3. Publisher: 2012
  4. Abstract:
  5. In this paper, employing an analytical method, optimum design of multi-layer compound cylinders is investigated. To this end, considering Tresca criterion, maximum shear stress in each layer is minimized. Analytical relations for optimum values of a layer dimension, residual pressures and radial interferences are derived. A technique for shrink-fitting of layers is also proposed and relationships for radial interferences, residual pressures and required temperature differences during the shrink-fitting process are derived. Three different examples are presented to show the effectiveness of the proposed method. It is shown that increasing the number of layers makes shear stress distribution near to uniform. As a result, with specified maximum shear stress and inner radius, the weight of compound cylinder is decreased when the number of layers is increased. Moreover, compound cylinders with more layers have lower maximum shear stress for a specified weight. It is also concluded that if the ratio of outer to inner radii be larger, increasing the number of layers is more effective
  6. Keywords:
  7. Internal pressure ; Multi-layer ; Optimum design ; Compound cylinder ; Optimum designs ; Shrink-fit ; Shrink-fitting process ; Tresca criteria ; Shear stress ; Shrinkfitting ; Cylinders (shapes)
  8. Source: International Journal of Applied Mechanics ; Volume 4, Issue 4 , December , 2012 ; 17588251 (ISSN)
  9. URL: http://www.worldscientific.com/doi/abs/10.1142/S1758825112500433