Reliability Analysis Deflector of Underwater Wall Detection Device Based on Finite Element and Response Surface Methodology. Issue 5 (January 2021)

• Record Type: Journal Article
• Authors: Yang, S Q; Yang, H L; Bai, S L; Xu, G H
• Is Part Of: IOP conference series. Volume 1043:Issue 5(2021)
• Publication Date: 2021-01
• Subjects: Deflector -- Limit state function -- Uncertainty -- Finite element method -- Response surface methodology; Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/1043/5/052047
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: Before the diversion plugging in hydropower project, underwater wall detection device can complete the probe of visual detection and obstacle clearing in high-velocity flow. Deflector which can provide a stronger compress diversion tunnel sluice gate power is the most important part in underwater wall detection device, but the mechanical and uncertainty analysis aren't enough. In this paper, Finite Element Method and Response Surface Methodology are used to analyze strength and deformation of the deflector, meanwhile, the limit state functions about the maximal bending stress and maximal deformation are developed. Then, though comparing the data with experimental data and the value computed by user formula, the error is less than 2% and the error is allowable in engineering design. Finally, reliability analysis the deflector is achieved with the First-Order Reliability Method. In a word, form the calculating results and engineering operation, we know that the propose method in this paper using finite element method and response surface methodology to develop the function related to the limit functions of deflector under uncertainty is practical and feasible.