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The design of Bayesian diagnostic expert system Querix and it’s engineering application 贝叶斯诊断专家系统Querix的设计及其工程应用
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2023-05-11 DOI: 10.21495/em2023-259
Assoc. Prof. Jiri Krejsa, Prof. Kuo-Shen, PhD. Chen
{"title":"The design of Bayesian diagnostic expert system Querix and it’s engineering application","authors":"Assoc. Prof. Jiri Krejsa, Prof. Kuo-Shen, PhD. Chen","doi":"10.21495/em2023-259","DOIUrl":"https://doi.org/10.21495/em2023-259","url":null,"abstract":": Advanced diagnostics of various industrial machines have garnered attention from researchers in recent years as the popularity of smart factories of Industry 4.0 grows. Alongside modern RPA (Robotic Process Automation) systems, which bring various AI methods into the administration of industrial processes, advanced diagnostic and maintenance systems are a logical complement for the digital era of smart factories. This paper focuses on the introduction of a developed expert system used to help diagnose mobile robotic platforms during daily use.","PeriodicalId":38731,"journal":{"name":"Gong Cheng Li Xue/Engineering Mechanics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48060468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical simulations of plane strain tension for nickel-based alloy 718 镍基718合金平面应变拉伸的数值模拟
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2023-05-11 DOI: 10.21495/em2023-143
P. Kubík, R. Vobejda, J. Petruška, F. Šebek
{"title":"Numerical simulations of plane strain tension for nickel-based alloy 718","authors":"P. Kubík, R. Vobejda, J. Petruška, F. Šebek","doi":"10.21495/em2023-143","DOIUrl":"https://doi.org/10.21495/em2023-143","url":null,"abstract":": The analysis of possible approaches to the numerical simulation of tensile flat specimen made from 718 superalloy is presented. Three plasticity models were employed, with various numbers of material parameters and, therefore, complexity. The influence of simplifying the three-dimensional geometry into the plane was researched in the view of force response, deformation and stress state in the crack initiation location, which was in the centre of the specimen.","PeriodicalId":38731,"journal":{"name":"Gong Cheng Li Xue/Engineering Mechanics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47331353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative assessment of the efficiency of stabilization of different methods sternum anastomosis 不同胸骨吻合方法稳定效果的比较评价
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2023-05-11 DOI: 10.21495/em2023-83
B. Gzik-Zroska, K. Joszko, W. Wolański
{"title":"Comparative assessment of the efficiency of stabilization of different methods sternum anastomosis","authors":"B. Gzik-Zroska, K. Joszko, W. Wolański","doi":"10.21495/em2023-83","DOIUrl":"https://doi.org/10.21495/em2023-83","url":null,"abstract":": The paper presents the results of numerical simulations aimed at evaluating the effectiveness of various methods of sternum fixation after sternotomy. The scope of work included the development of a numerical model of the chest of a 50-year-old man based on computed tomography images, models of three methods of sternum fixation: the \"AcuTie\" system, \"Sternal Talon\" clamps and the sternocostal plate. Based on the results of numerical simulations carried out in the ANSYS Workbench program, the effectiveness of the analyzed methods was compared.","PeriodicalId":38731,"journal":{"name":"Gong Cheng Li Xue/Engineering Mechanics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42630975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of internal combustion engine selected temperature sensors diagnostic tests and assessment of their technical state 内燃机选定温度传感器诊断试验分析及技术状态评定
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2023-05-11 DOI: 10.21495/em2023-115
T. Kałaczyński, M. Łukasiewicz, M. Liss, A. Mazurkiewicz, R. Kozłowski
{"title":"Analysis of internal combustion engine selected temperature sensors diagnostic tests and assessment of their technical state","authors":"T. Kałaczyński, M. Łukasiewicz, M. Liss, A. Mazurkiewicz, R. Kozłowski","doi":"10.21495/em2023-115","DOIUrl":"https://doi.org/10.21495/em2023-115","url":null,"abstract":": Temperature sensors in a vehicle are an indispensable element. They are responsible for transmitting information to the engine controller about the temperature of the engine itself or other components affecting engine operation, ecology related to the emission of toxic exhaust compounds and driving comfort. The paper presents an issue concerning the methodology of analyzing the technical state of internal combustion engines selected temperature sensors","PeriodicalId":38731,"journal":{"name":"Gong Cheng Li Xue/Engineering Mechanics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43728382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Semi-probabilistic approaches for action effects 作用效应的半概率方法
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2023-05-11 DOI: 10.21495/em2023-175
D. Novak, L. Novak, P. Spyridis
{"title":"Semi-probabilistic approaches for action effects","authors":"D. Novak, L. Novak, P. Spyridis","doi":"10.21495/em2023-175","DOIUrl":"https://doi.org/10.21495/em2023-175","url":null,"abstract":": The computational burden of Monte Carlo (MC) type simulation represents the main obstacle to the approach for time-consuming finite element (FE) computational models since it is not computationally feasible. Consideration of uncertainties, therefore, remains usually at the level of partial safety factors, the approach which is in most cases on the very conservative side. That is why alternative techniques of so-called safety formats are becoming more and more attractive recently. Methods focused on the Estimation of Coefficient of Variation (ECoV) of structural resistance have been developed and applied recently. They represent a compromise between the simple and in most cases conservative approach of partial safety factors and highly computationally demanding MC simulation. Semi-probabilistic methods have been applied for structural resistance assessment, but not for the action effects side. The paper shows the possibility of application of these methods for action effect – load side of safety margin. Selected efficient semi-probabilistic methods based on the ECoV method according to fib Model Code 2010 and an improved approach called Eigen ECoV, are utilized. The application of approaches for the assessment of concrete tunnel linings is shown.","PeriodicalId":38731,"journal":{"name":"Gong Cheng Li Xue/Engineering Mechanics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48994595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Deformation-driven flow in homogenized fluid-saturated porous periodic structures: Nonlinearity and dynamic effects 均质流体饱和多孔周期结构的变形驱动流动:非线性和动态效应
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2023-05-11 DOI: 10.21495/em2023-215
E. Rohan, V. Lukeš
{"title":"Deformation-driven flow in homogenized fluid-saturated porous periodic structures: Nonlinearity and dynamic effects","authors":"E. Rohan, V. Lukeš","doi":"10.21495/em2023-215","DOIUrl":"https://doi.org/10.21495/em2023-215","url":null,"abstract":": The paper deals with the homogenization-based modelling of periodic porous structures saturated by a Newtonian fluid and locally controlable due to embedded piezoelectric segments which can induce a peristaltic deformation of the microchannels, in response to prescribed propagating voltage waves. To respect dynamic effects of the flow in bulged pores, where the advection term of the acceleration is important, two time scales are considered and an appropriate time scaling of the fast-slow dynamics is introduced in a proportion to the spatial scaling. The two-scale homogenized problem is nonlinear by the consequence of the advection term in the flow model. Further nonlinearity is introduced by deformation-dependent homogenized coefficients of the macroscopic equations. For this, a linear expansions based on the sensitivity analysis of the homogenized coefficients with respect to the deformation induced by the macroscopic quantities is employed.","PeriodicalId":38731,"journal":{"name":"Gong Cheng Li Xue/Engineering Mechanics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48849560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prediction of rotor thermal bow using 3D finite element model 基于三维有限元模型的转子热弓预测
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2023-05-11 DOI: 10.21495/em2023-191
J. Pařez, P. Kovář
{"title":"Prediction of rotor thermal bow using 3D finite element model","authors":"J. Pařez, P. Kovář","doi":"10.21495/em2023-191","DOIUrl":"https://doi.org/10.21495/em2023-191","url":null,"abstract":"","PeriodicalId":38731,"journal":{"name":"Gong Cheng Li Xue/Engineering Mechanics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44453343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PVDF film with HA, PHA, AgNO3 fillers for biocompatible piezoelectric sensors 用于生物相容性压电传感器的含有HA、PHA、AgNO3填料的PVDF薄膜
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2023-05-11 DOI: 10.21495/em2023-155
I. Markuniene, G. Janusas
{"title":"PVDF film with HA, PHA, AgNO3 fillers for biocompatible piezoelectric sensors","authors":"I. Markuniene, G. Janusas","doi":"10.21495/em2023-155","DOIUrl":"https://doi.org/10.21495/em2023-155","url":null,"abstract":"","PeriodicalId":38731,"journal":{"name":"Gong Cheng Li Xue/Engineering Mechanics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43929772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of associated and non-associated plasticity models for aluminium alloys 铝合金相关和非相关塑性模型的比较
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2023-05-11 DOI: 10.21495/em2023-263
R. Vobejda, F. Šebek
{"title":"Comparison of associated and non-associated plasticity models for aluminium alloys","authors":"R. Vobejda, F. Šebek","doi":"10.21495/em2023-263","DOIUrl":"https://doi.org/10.21495/em2023-263","url":null,"abstract":"","PeriodicalId":38731,"journal":{"name":"Gong Cheng Li Xue/Engineering Mechanics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42454599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Determining the profile of tissue puncture force in order to improve the imitation of reality by medical training devices 确定组织穿刺力的轮廓以提高医疗训练设备对现实的模仿
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2023-05-11 DOI: 10.21495/em2023-195
M. Ples, G. Gruszka, P. Wodarski, K. Daniec, A. Nawrat, D. Bereska, R. Koteras, P. Kosiński, M. Wielgoś
{"title":"Determining the profile of tissue puncture force in order to improve the imitation of reality by medical training devices","authors":"M. Ples, G. Gruszka, P. Wodarski, K. Daniec, A. Nawrat, D. Bereska, R. Koteras, P. Kosiński, M. Wielgoś","doi":"10.21495/em2023-195","DOIUrl":"https://doi.org/10.21495/em2023-195","url":null,"abstract":"While the procedure of amniocentesis is considered safe, there are still risks to both the fetus and the mother. The goal of the research was to determine the values and profiles of the forces that occur during the penetration of real tissues with a needle intended for use during amniocentesis. The data on force exerted during puncture was measured in relation to insertion into organic material from domestic pigs, a mammal similar in size and mechanical properties of tissues to humans. The results showed a local increase in the force value when piercing the skin and the uterine wall. The findings prove the usability of measurements done on porcine tissues for at least initial planning of the medical training devices.","PeriodicalId":38731,"journal":{"name":"Gong Cheng Li Xue/Engineering Mechanics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47698833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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