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公开(公告)号：US20250086340A1
公开(公告)日：2025-03-13
申请号：US18705684
申请日：2021-12-13
Inventor： Fuzhen XUAN , Jianguo GONG , Yang GAO , Mingliang ZHU , Yanxun XIANG
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.
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Patent Agency Ranking
2.发明公开公开(公告)号：US20240219277A1
公开(公告)日：2024-07-04
申请号：US18223913
申请日：2023-07-19
Applicant: East China University of Science and Technology , Shandong Chambroad Holding Group Co., Ltd , SD Chambroad EQPT MFG and Installation Co., Ltd
Inventor： Yuhui HUANG , Yunsheng MA , Fangxin YANG , Fuzhen XUAN , Shantung TU , Liqiu ZHAO , Shengke WEI
IPC: G01N3/08 , G01N3/06 , G01N21/84 , G01N23/2251
CPC classification number: G01N3/08 , G01N3/06 , G01N21/84 , G01N23/2251
Abstract: A method and a system for evaluating stress corrosion cracking sensitivity of a welded component are provided. The method includes performing an in-situ tensile test on a welded component to be tested to obtain mechanical property parameters of each zone of the welded component to be tested; determining sizes and positions of notch specimens of the welded component to be tested by means of a finite element simulation method; processing specimens of the welded component to be tested; respectively performing a slow strain rate tensile test on the specimens of the welded component to be tested until the specimens are fractured in both an inert environment and a test environment, so as to obtain reductions of area of notch roots of the specimens of the welded component to be tested; and calculating stress corrosion cracking sensitivities of various zones of the welded component to be tested.
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3.发明公开公开(公告)号：US20240104482A1
公开(公告)日：2024-03-28
申请号：US18227069
申请日：2023-07-27
Inventor： Mingliang ZHU , Fuzhen XUAN , Gang ZHU , Shan-Tung TU
IPC: G06Q10/0639 , G05B23/02 , G06Q10/067 , G06Q50/04 , G06Q50/26
CPC classification number: G06Q10/06395 , G05B23/0283 , G06Q10/067 , G06Q50/04 , G06Q50/265
Abstract: An anti-fatigue and safety control method for ultra-long life service structures under extreme environment, comprising: judge the fatigue fracture mode in the long life stage of the service structure; according to the interaction principle of defect-matrix, obtain the internal defect induced fatigue cracking mechanism in ultra-high cycle regime under the service environment; considering the environmental factors, clarify the internal defect-matrix-environment interaction mechanism under service conditions and obtain the environmental weakening coefficient; considering the environmental factors, establish a fatigue life prediction model based on defect-load-life correlation under service conditions in ultra-high cycle regime; the process parameters of material metallurgy and manufacturing, design parameters of structural strength, structural service stress and environmental parameters are regulated based on the concept of integrated design/manufacturing.
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4.发明申请公开(公告)号：US20160299046A1
公开(公告)日：2016-10-13
申请号：US14915659
申请日：2014-09-25
Applicant: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY , SHANGHAI ELECTRIC POWER EQUIPMENT CO., LTD. SHANGHAI STEAM TURBINE FACTORY
Inventor： Fuzhen XUAN , Haitao WANG , Qiongqi WANG , Linbo MEI , Xia LIU , Yuhui HUANG
CPC classification number: G01N3/18 , G01N3/00 , G01N3/08 , G01N3/28 , G01N2203/0017 , G01N2203/006 , G01N2203/0069
Abstract: Disclosed is a method of measurement and determination on fracture toughness of structural materials at high temperature, comprising: preliminary assessing the ductility of a material based on a high-temperature uniaxial tensile test and the fracture characteristic; designing and manufacturing a CT specimen; conducting a monotonic loading fracture test on the CT specimen at high temperature; modifying a load-displacement curve output by a testing machine; determining a passivation coefficient M for the crack of the structural material; reversely recursing instant load-displacement data pairs corresponding to the instant crack length; calculating a J_R crack extension resistance curve of the tensile test; examining the validity of the J_R crack extension resistance curve and the fracture toughness JIC; calculating the fracture toughness per equivalent of the structural material KIC. The present invention overcomes the difficulty of placing an extensometer inside a high-temperature furnace.
Abstract translation: 本发明公开了一种高温结构材料的断裂韧性的测定方法，其特征在于，包括：基于高温单轴拉伸试验和断裂特性初步评价材料的延展性; 设计制造CT样本; 在高温下对CT标本进行单调载荷断裂试验; 修改由试验机输出的载荷 - 位移曲线; 确定结构材料裂纹的钝化系数M; 对应于即时裂纹长度的反向递归瞬时载荷 - 位移数据对; 计算拉伸试验的J_R裂纹扩展电阻曲线; 检查J_R裂纹扩展阻力曲线和断裂韧性JIC的有效性; 计算每个等效结构材料KIC的断裂韧性。 本发明克服了将引伸计置于高温炉内的困难。
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公开(公告)号：US20240062988A1
公开(公告)日：2024-02-22
申请号：US17976344
申请日：2022-10-28
Inventor： Yabin YAN , Fuzhen XUAN , Ting SU
Abstract: The present disclosure provides a machine vision-based automatic focusing and automatic centering method and system, which belongs to the technical field of machine vision-based automatic control. An object stage is controlled to move in an imaging distance range of an electron microscope, and images scanned by the electron microscope when the object stage is at different imaging distances are acquired. The image definition of an object stage image is calculated according to a gray-scale value of each pixel in the object stage image, the imaging position when an image definition value is the maximum is determined, and the object stage is controlled to move to the position, so as to realize machine vision-based accurate focusing. After the accurate focusing is completed, the images that can clearly reflect the arrangement relationship between an indenter and a sample on the object stage are acquired by the electron microscope, and a midline of an indenter area and a midline of a sample area are aligned, so as to realize machine vision-based accurate centering, which avoids the problems of low efficiency and poor accuracy in manual focusing and centering, and improves the focusing and centering efficiency.
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6.发明公开公开(公告)号：US20230384193A1
公开(公告)日：2023-11-30
申请号：US18031318
申请日：2020-10-13
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.
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