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Aerodynamic interference forces acting on two square prisms in a model atmospheric boundary layer 在模式大气边界层中作用在两个方形棱镜上的气动干涉力
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2022-01-01 DOI: 10.21495/51-2-245
M. Machacek, Y. Lo, J. Máca
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引用次数: 0
Practical usability of fractional viscoelasticity for interlayer polymers 层间聚合物分数粘弹性的实用性
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2022-01-01 DOI: 10.21495/51-2-345
J. Schmidt, B. Hálková
{"title":"Practical usability of fractional viscoelasticity for interlayer polymers","authors":"J. Schmidt, B. Hálková","doi":"10.21495/51-2-345","DOIUrl":"https://doi.org/10.21495/51-2-345","url":null,"abstract":": Fractional calculus seems to be highly academic and artificial tool, but the opposite is true. The fractional calculus, i.e. the theory of derivatives and integrals of non-integer order, is applicable for describing many phenomena like signal processing or diffusion problems. For our research the prominent utilization is the fractional viscoelasticity for modeling a laminated glass interlayers. This theory can effectively describe polymer behavior in short term, where standard generalized Maxwell model is accurate only if utilizing a large number of cells. It seems that this approach is much natural, but on the other hand it brings a non-integer derivative of the displacement field into the governing equations, which induce some difficulties in numerical time integration. This paper is the beginning of research of the applicability of fractional models to describe the behavior of the interlayer in laminated glass.","PeriodicalId":38731,"journal":{"name":"Gong Cheng Li Xue/Engineering Mechanics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68706784","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
Flow field prediction in a blade cascade using a convolution neural network 基于卷积神经网络的叶栅流场预测
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2022-01-01 DOI: 10.21495/51-2-41
O. Bublík, V. Heidler, A. Pecka, J. Vimmr
{"title":"Flow field prediction in a blade cascade using a convolution neural network","authors":"O. Bublík, V. Heidler, A. Pecka, J. Vimmr","doi":"10.21495/51-2-41","DOIUrl":"https://doi.org/10.21495/51-2-41","url":null,"abstract":"","PeriodicalId":38731,"journal":{"name":"Gong Cheng Li Xue/Engineering Mechanics","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68707658","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 numerical simulation of the spray 喷雾的数值模拟
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2022-01-01 DOI: 10.21495/51-2-65
J. Cesenek
{"title":"The numerical simulation of the spray","authors":"J. Cesenek","doi":"10.21495/51-2-65","DOIUrl":"https://doi.org/10.21495/51-2-65","url":null,"abstract":"","PeriodicalId":38731,"journal":{"name":"Gong Cheng Li Xue/Engineering Mechanics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68707858","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
Optimization of the slay mechanism of the weaving loom DIFA 织布机DIFA机构的优化
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2022-01-01 DOI: 10.21495/51-2-209
T. Koňařík
{"title":"Optimization of the slay mechanism of the weaving loom DIFA","authors":"T. Koňařík","doi":"10.21495/51-2-209","DOIUrl":"https://doi.org/10.21495/51-2-209","url":null,"abstract":"","PeriodicalId":38731,"journal":{"name":"Gong Cheng Li Xue/Engineering Mechanics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68705402","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 influence of visual stimuli on perception of pain through use of virtual reality 利用虚拟现实技术分析视觉刺激对疼痛感知的影响
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2022-01-01 DOI: 10.21495/51-2-337
J. Romanek, G. Gruszka, M. Chmura, M. Ples, W. Kieś, P. Wodarski, J. Jurkojć
{"title":"Analysis of influence of visual stimuli on perception of pain through use of virtual reality","authors":"J. Romanek, G. Gruszka, M. Chmura, M. Ples, W. Kieś, P. Wodarski, J. Jurkojć","doi":"10.21495/51-2-337","DOIUrl":"https://doi.org/10.21495/51-2-337","url":null,"abstract":"","PeriodicalId":38731,"journal":{"name":"Gong Cheng Li Xue/Engineering Mechanics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68706742","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
Wake behind a cylinder: An overview of spatio-temporal aspects 圆柱体后面的尾迹:时空方面的概述
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2022-01-01 DOI: 10.21495/51-2-7
V. Uruba
{"title":"Wake behind a cylinder: An overview of spatio-temporal aspects","authors":"V. Uruba","doi":"10.21495/51-2-7","DOIUrl":"https://doi.org/10.21495/51-2-7","url":null,"abstract":"","PeriodicalId":38731,"journal":{"name":"Gong Cheng Li Xue/Engineering Mechanics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68707549","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
Validation of FEM model of interaction of car seat cushion and rigid indenter 汽车坐垫与刚性压头相互作用的有限元模型验证
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2022-01-01 DOI: 10.21495/51-2-77
D. Cirkl, A. Luciová, J. Skoda, R. Mendřický
{"title":"Validation of FEM model of interaction of car seat cushion and rigid indenter","authors":"D. Cirkl, A. Luciová, J. Skoda, R. Mendřický","doi":"10.21495/51-2-77","DOIUrl":"https://doi.org/10.21495/51-2-77","url":null,"abstract":"","PeriodicalId":38731,"journal":{"name":"Gong Cheng Li Xue/Engineering Mechanics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68707796","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 the results of analytical and FEM stress calculations of the spherical nanoindentation 球形纳米压痕应力分析与有限元计算结果的比较
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2022-01-01 DOI: 10.21495/51-2-217
J. Kovář, V. Fuis
{"title":"Comparison of the results of analytical and FEM stress calculations of the spherical nanoindentation","authors":"J. Kovář, V. Fuis","doi":"10.21495/51-2-217","DOIUrl":"https://doi.org/10.21495/51-2-217","url":null,"abstract":": This paper focuses on the comparison of the calculation of stress fields under the spherical indenter determined with analytical and FEM calculations and the identification of the most common cracks initiation reasons. The most used theory for the description of the contact of sphere and half-space was derived by Hertz. Huber extended this theory to calculate the stress field under the indenter. If every component of stress tensor is known, the principal stresses can be derived. The analytically calculated stresses were verified with the FEM and the initiation and growth of the most common cracks (ring, conical) at spherical indentation was explained.","PeriodicalId":38731,"journal":{"name":"Gong Cheng Li Xue/Engineering Mechanics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68705770","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 design and aerodynamic testing of DPIK probe DPIK探针的设计与气动试验
Gong Cheng Li Xue/Engineering Mechanics Pub Date : 2022-01-01 DOI: 10.21495/51-2-313
P. Procházka, V. Barraclough, V. Skála, V. Uruba
{"title":"The design and aerodynamic testing of DPIK probe","authors":"P. Procházka, V. Barraclough, V. Skála, V. Uruba","doi":"10.21495/51-2-313","DOIUrl":"https://doi.org/10.21495/51-2-313","url":null,"abstract":": The isokinetic probe used to detect the liquid phase drift from the cooling tower is presented here. The main motivation is costs reduction that arises during standard drift measurements. The probe was developed in the framework of the grant project between private company 4Jtech and Institute of Thermomechanics. The aerodynamic design and optimization of this probe should fulfill one important criterion – to capture the droplets from the drift with maximal efficiency. Kalorimetric principle is then used to evaluate the amount of trapped water. Standard PIV (Particle Image Velocimetry) measurement technique and modified IPI (Interferometric Particle Imaging) methods were used to measure the flow field topology and the particle size distribution, respectively.","PeriodicalId":38731,"journal":{"name":"Gong Cheng Li Xue/Engineering Mechanics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68706852","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: 2
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