Title: Design exploration of a spring plate using FEM and Box-Behnken design

Authors: Dheeraj Gunwant

Addresses: Department of Mechanical Engineering, Apex Group of Institutions, Rampur, UP, India; Department of Mechanical Engineering, Invertis University, Bareilly, UP, India

Abstract: The current study aims at design exploration of a structural steel spring plate using FEM and design of experiments (DoE). Box-Behnken design (BBD) was used for DoE, and FEM was used to model and solve various design points. First, structural analyses of the spring plate were performed to determine the maximum deformation and von-Mises stress in the model. The study considered bend radius (P1), hole spacing (P6), and internal and external thicknesses (P11, P12) as input parameters. Twenty-five BBD-based numerical experiments were run in ANSYS WB. Regression analysis yielded accurate output parameter regression models based on input parameters. ANOVA was used to determine the importance of each input parameter on the output parameters. Response surface methodology (RSM) was used to determine the change in response variable vs. input parameters. The goodness-of-fit analysis showed good agreement between RSM-predicted and FEM-determined output parameters.

Keywords: fatigue analysis; design of experiments; DoE; response surface methodology; RSM; finite element analysis.

DOI: 10.1504/IJDE.2023.131964

International Journal of Design Engineering, 2023 Vol.12 No.1, pp.11 - 29

Received: 11 Dec 2022
Accepted: 23 Dec 2022
Published online: 05 Jul 2023 *