公开(公告)号：US20250086340A1

公开(公告)日：2025-03-13

申请号：US18705684

申请日：2021-12-13

Applicant: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Fuzhen XUAN ,  Jianguo GONG ,  Yang GAO ,  Mingliang ZHU ,  Yanxun XIANG

IPC: G06F30/17 ,  G06F30/23

Abstract: A digital twin-based pressure vessel safety evaluation and risk warning method includes steps: S1, determine a damage mode of pressure vessel; S2, design an overall plan of pressure vessel safety evaluation and risk warning; S3, simplify physical model of the pressure vessel and build a simplified physical model based on designed overall plan; S4, obtain load condition parameters during actual service of the pressure vessel; S5, determine material performance parameters of the pressure vessel; S6, build a digital twin model of pressure vessel safety evaluation and risk warning; S7, obtain a full-field damage distribution cloud map of the pressure vessel; S8, compare the full-field damage distribution cloud map and strength requirement of material of pressure vessel, if the strength requirement is met, conduct a safety evaluation at next time node according to subsequent needs of user, and if the strength requirement is not met, output a pressure vessel risk warning.

公开(公告)号：US20230384193A1

公开(公告)日：2023-11-30

申请号：US18031318

申请日：2020-10-13

Applicant: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Fuzhen XUAN ,  Cheng GONG ,  Jianguo GONG

IPC: G01N3/06

CPC classification number: G01N3/066

Abstract: The application discloses a time-dependent local stress-strain method for high-temperature structural strength and service life analysis. The method is aimed at a load component under high-temperature conditions, and the load component has a structural discontinuity area. The method includes: a step for obtaining working conditions, a step for obtaining material parameters, an elastoplasticity analysis step, a limit analysis step, an elasticity analysis step, a boundary condition setting step, an iterative operation step, and a result integration step. The application also discloses time-dependent local stress-strain tool software for high-temperature structural strength and service life analysis. The tool software includes: a parameter acquisition assembly, a finite element modeling and operation assembly, an iterative operation assembly, and a result display assembly.