title: Effect analysis of design variables on the disc in a double-eccentric butterfly valve.
abstract: We have performed a shape optimization of the disc in an industrial double-eccentric butterfly valve using the effect analysis of design variables to enhance the valve performance. For the optimization, we select three performance quantities such as pressure drop, maximum stress, and mass (weight) as the responses and three dimensions regarding the disc shape as the design variables. Subsequently, we compose a layout of orthogonal array (L16) by performing numerical simulations on the flow and structure using a commercial package, ANSYS v13.0, and then make an effect analysis of the design variables on the responses using the design of experiments. Finally, we formulate a multiobjective function consisting of the three responses and then propose an optimal combination of the design variables to maximize the valve performance. Simulation results show that the disc thickness makes the most significant effect on the performance and the optimal design provides better performance than the initial design.
authors.affiliation: Department of Mechanical Engineering, Dong-A University, Busan 604-714, Republic of Korea.
authors.forename: Sangmo
authors.identifier: 0000-0001-8152-185X
authors.initials: S
authors.lastname: Kang
authors.affiliation: Department of Mechanical Engineering, Dong-A University, Busan 604-714, Republic of Korea.
authors.forename: Da-Eun
authors.initials: DE
authors.lastname: Kim
authors.affiliation: Department of Mechanical Engineering, Dong-A University, Busan 604-714, Republic of Korea.
authors.forename: Kuk-Kyeom
authors.initials: KK
authors.lastname: Kim
authors.affiliation: Department of Mechanical Engineering, Dong-A University, Busan 604-714, Republic of Korea.
authors.forename: Jun-Oh
authors.initials: JO
authors.lastname: Kim
mesh_terms: D004738:Engineering / Q000379:methods*; D004867:Equipment Design / Q000379:methods*; D004864:Equipment and Supplies / Q000592:standards; D012212:Rheology