Structural Design Strategy of Double-Eccentric Butterfly Valve using Topology Optimization Techniques

In this paper, the shape design process is briefly discussed emphasizing the use of topology optimization in the conceptual design stage. The basic idea is to view feasible domains for sensitivity region concepts. In this method, the main process consists of two steps: as the design moves further inside the feasible domain using Taguchi method, and thus becoming more successful topology optimization, the sensitivity region becomes larger. In designing a double-eccentric butterfly valve, related to hydrodynamic performance and disc structure, are discussed where the use of topology optimization has proven to dramatically improve an existing design and significantly decrease the development time of a shape design. Computational Fluid Dynamics (CFD) analysis results demonstrate the validity of this approach.

• Jun-Oh Kim
• Seol-Min Yang
• Seok-Heum Baek
• Sangmo Kang

• Double-eccentric butterfly valve
• CFD
• Topology optimization

[1] F. Danbon, and C. Solliec, "Aerodynamic Torque of a Butterfly
Valve-Influence of an Elbow on the Time-Mean and Instantaneous
Aerodynamic Torque," ASME J. Fluids Eng., Vol. 122, No. 2, 2000,
pp.337-344
[2] Z. Leutwyler, and C. Dalton, "A Computational Study of Torque and
Forces Due to Compressible Flow on a Butterfly Valve Disk in
Mid-stroke Position," ASME J. Fluids Eng., Vol. 128, No. 5, 2006,
pp.1074-1082.
[3] C. C. Tsai, C. Y. Chang, and C. H. Tseng, "Optimal Design of Metal
Seated Ball Valve Mechanism," Struct. Multidisc. Optim., Vol. 26, No.
3-4, 2004, pp.249-255.
[4] P. Duda, and R. Dwornicka, "Optimization of Heating and Cooling
Operations of Steam Gate Valve," Struct. Multidisc. Optim., Vol. 40, No.
1-6, 2010, pp.529-535.
[5] J. Y. Park, and M. K. Chung, "Study on Hydrodynamic Torque of a
Butterfly Valve," ASME J. Fluids Eng., Vol. 128, No. 1, 2006,
pp.190-195.
[6] X. G. Song, L. Wang, S. H. Baek, and Y. C. Park, "Multidisciplinary
Optimization of a Butterfly Valve," ISA Trans., Vol. 48, No. 3, 2009,
pp.370-377.
[7] M. P. Bendsoe, and N. Kikuchi, "Generating Optimal Topologies in
Structural Design Using a Homogenization Method," Comput. Meth.
Appl. Mech. Eng., Vol. 71, No. 2, 1988, pp.197-224.
[8] M. I. Frecher, G. K. Ananthasuresh, S. Nishiwaki, N. Kikuchi, and S.
Kota, "Topological Synthesis of Compliant Mechanisms Using
Multi-Criteria Optimization," ASME J. Mech. Des., Vol. 119, No. 2,
1997, pp.238-245.
[9] S. H. Baek, K. Y. Lee, S. S. Cho, D. Y. Jang, and W. S. Joo, "Optimal
Design of Electric Vehicle Cross Beam for Adaptive Design of
Homogenized Structure," Trans. of the KSAE, Vol. 12, No. 5, 2004,
pp.85-93.
[10] ANSYS CFX, User Manual Release 12.1, ANSYS Inc., 2011.
[11] T. J. Barth, and D. C. Jesperson, "The Design and Application of Upwind
Schemes on Unstructured Meshes," AIAA J., Vol. 89, No. 89-0366, 1989,
pp.1-12.
[12] F. R. Menter, "Two-equation Eddy-viscosity Turbulence Models for
Engineering Applications," AIAA J., Vol. 32, No. 8, 1994,
pp.1598-1605.
[13] M. S. Phadke, Quality Engineering Using Robust Design, Prentice Hall,
Englewood Cliffs, NJ, 1989.
[14] S. H. Baek, S. H. Hong, S. S. Cho, D. Y. Jang, and W. S. Joo,
"Optimization of Process Parameters for Recycling of Mill Scale Using
Taguchi Experimental Design," J. Mech. Sci. Technol., Vol.24, No.10,
2010, pp.2127-2134.
[15] A. R. Diaz, and N. Kikuchi, "Solutions to Shape and Topology
Eigenvalue Optimization Problems using a Homogenization Method," Int.
J. Numer. Methods Eng., Vol. 35, 1992, pp.1487-1502.
[16] ANSYS Theory Reference Release 11.0, SAS IP, Inc., 2007.
[17] H. Behrooz, and H. Ernest, Homogenization and Structural Topology
Optimization: Theory, Practice and Software, Springer-Verlag, 1999.