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Gong Cheng Li Xue/Engineering Mechanics最新文献

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Consistency of mathematical and experimental model of the autoparametric system 自参数化系统数学模型与实验模型的一致性
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2023-05-11 DOI: 10.21495/em2023-67
C. Fischer, J. Náprstek
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引用次数: 0
Modeling the influence of surface roughness on boundary layer transition 模拟表面粗糙度对边界层转变的影响
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2023-05-11 DOI: 10.21495/em2023-147
F¨urst, Prof. Ing. Jiˇr´ı F¨urst
{"title":"Modeling the influence of surface roughness on boundary layer transition","authors":"F¨urst, Prof. Ing. Jiˇr´ı F¨urst","doi":"10.21495/em2023-147","DOIUrl":"https://doi.org/10.21495/em2023-147","url":null,"abstract":": This paper provides a summary of both history and current state-of-art in modeling of the surface roughness influence on boundary layer transition from laminar to turbulent regime. Discussed techniques are restricted to RANS models as these are nowadays still in major use in complex engineering applications. Present modeling techniques for surface roughness are critically reviewed. Finally, challenges connected with modeling of surface roughness influence are highlighted and potential ways for future work in this area are discussed.","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":"46829827","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
Conductive film sensor for health monitoring of a bedridden patient 用于卧床病人健康监测的导电薄膜传感器
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2023-05-11 DOI: 10.21495/em2023-99
M. Chrzan, M. Kciuk, J. Domin, Z. Kowalik, D. Krawczyk, M. Burkacki, M. Ples, S. Suchon
{"title":"Conductive film sensor for health monitoring of a bedridden patient","authors":"M. Chrzan, M. Kciuk, J. Domin, Z. Kowalik, D. Krawczyk, M. Burkacki, M. Ples, S. Suchon","doi":"10.21495/em2023-99","DOIUrl":"https://doi.org/10.21495/em2023-99","url":null,"abstract":": The work is aimed to analyse the possibility of using the Velostat® film technology to help medical staff in the care of bedridden patients. System were prototyped and tested. Velostat® film bedsheet is an anti-bedsore module that utilizes dedicated pressure sensitive mat for position detection to signalize a possibility of a bedsore effect. The modules have been tested and the results of their functioning have been presented. The results of the tests is verification of the pressure sensing mat made of Velostat® film. On the basis of the pre-designed device and conducted research, a system is created for monitoring a lying patient and can be used for further clinical trials, supporting many hospital medical staff.","PeriodicalId":38731,"journal":{"name":"Gong Cheng Li Xue/Engineering Mechanics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68708541","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
Finite element modal analysis of a silicone vocal fold filled with fluid 充液硅胶声带的有限元模态分析
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2023-05-11 DOI: 10.21495/em2023-87
P. Hájek, V. Radolf, J. Horáček, J. Švec
{"title":"Finite element modal analysis of a silicone vocal fold filled with fluid","authors":"P. Hájek, V. Radolf, J. Horáček, J. Švec","doi":"10.21495/em2023-87","DOIUrl":"https://doi.org/10.21495/em2023-87","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":"46981713","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
Dynamics of a cantilever beam with piezoelectric sensor: Finite element modeling 带有压电传感器的悬臂梁动力学:有限元建模
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2023-05-11 DOI: 10.21495/em2023-51
R. Cimrman, R. Kolman, L. Musil, V. Kotek, J. Kylar
{"title":"Dynamics of a cantilever beam with piezoelectric sensor: Finite element modeling","authors":"R. Cimrman, R. Kolman, L. Musil, V. Kotek, J. Kylar","doi":"10.21495/em2023-51","DOIUrl":"https://doi.org/10.21495/em2023-51","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":"42900160","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: 1
Influence of mechano-chemical surface treatment TCG on tribological properties in bodies rolling contact 机械化学表面处理TCG对物体滚动接触摩擦学性能的影响
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2023-05-11 DOI: 10.21495/em2023-183
O. Ondrášek, A. Storz, D. Basiri
{"title":"Influence of mechano-chemical surface treatment TCG on tribological properties in bodies rolling contact","authors":"O. Ondrášek, A. Storz, D. Basiri","doi":"10.21495/em2023-183","DOIUrl":"https://doi.org/10.21495/em2023-183","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":"41425014","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
Determination of Wöhler fatigue curves for PEEK and KIMYA PEKK-A material PEEK和KIMYA PEKK-A材料Wöhler疲劳曲线的测定
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2023-05-11 DOI: 10.21495/em2023-111
K. Joszko, B. Gzik-Zroska, W. Wolański
{"title":"Determination of Wöhler fatigue curves for PEEK and KIMYA PEKK-A material","authors":"K. Joszko, B. Gzik-Zroska, W. Wolański","doi":"10.21495/em2023-111","DOIUrl":"https://doi.org/10.21495/em2023-111","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":"45717387","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
The connection between the principle of the least action and the thermodynamic condition of stability 最小作用原理与热力学稳定条件之间的联系
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2023-05-11 DOI: 10.21495/em2023-159
Prof. Ing. Frantiˇsek Marˇs´ık, Assoc. Prof. Zdenˇek Tr´avn´ıˇcek, PhD. Ing. Zuzana Antoˇsov´a
{"title":"The connection between the principle of the least action and the thermodynamic condition of stability","authors":"Prof. Ing. Frantiˇsek Marˇs´ık, Assoc. Prof. Zdenˇek Tr´avn´ıˇcek, PhD. Ing. Zuzana Antoˇsov´a","doi":"10.21495/em2023-159","DOIUrl":"https://doi.org/10.21495/em2023-159","url":null,"abstract":": The direct correlation between classical mechanics of material points (Lagrange principle of classical mechanics) and classical continuum mechanics can be established when the existence of a trajectory and a friction force are added. The important role of the total enthalpy follows from a variational analysis. More-over, the thermodynamic criterion of the stability is formulated using the total enthalpy and compared with the experiments, numerical and the classical Rayleigh theory supports its applicability. It was shown that the solid body vortex is at the margin of stability, which is experimentally observed. Analogously, the potential vortex is by the thermodynamic criterion stable, however by the Rayleigh criteria it is on the onset of stability. The loss of stability of the forsed vortex (solid body vortex) is the main reason why it transforms into a free vortex (potential vortex). The classical Taylor experiment of flow between two rotating cylinders is analyzed from the point of view of this criterion. Recently, the vortex transformation process has been demonstrated both experimentally and by numerical simulations for the case of a vortex tube at the Institute of Aerospace Thermodynamics at Stuttgart (Seibold, 2022) and experimentally for the annular nozzle flow at the Institute of Thermomechanics CAS in Prague.","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":"45929965","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
Mediapipe and its suitability for sign language recognition Mediapipe及其在手语识别中的适用性
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2023-05-11 DOI: 10.21495/em2023-251
J. Šnajder, J. Krejsa
{"title":"Mediapipe and its suitability for sign language recognition","authors":"J. Šnajder, J. Krejsa","doi":"10.21495/em2023-251","DOIUrl":"https://doi.org/10.21495/em2023-251","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":"49120055","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
Higher-grade theory of heat conduction and size effects 更高级的热传导理论和尺寸效应
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2023-05-11 DOI: 10.21495/em2023-231
V. Sládek, J. Sládek
{"title":"Higher-grade theory of heat conduction and size effects","authors":"V. Sládek, J. Sládek","doi":"10.21495/em2023-231","DOIUrl":"https://doi.org/10.21495/em2023-231","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":"44338477","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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