Pub Date : 2018-04-03DOI: 10.5604/01.3001.0011.8033
E. Kozłowski, R. Młyński
{"title":"Attenuation of earmuffs used simultaneously with safety spectacles in exposure to impulse noise","authors":"E. Kozłowski, R. Młyński","doi":"10.5604/01.3001.0011.8033","DOIUrl":"https://doi.org/10.5604/01.3001.0011.8033","url":null,"abstract":"","PeriodicalId":9068,"journal":{"name":"Biuletyn Wojskowej Akademii Technicznej","volume":"67 1","pages":"43-53"},"PeriodicalIF":0.0,"publicationDate":"2018-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71272724","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}
Pub Date : 2018-04-03DOI: 10.5604/01.3001.0011.8056
W. Cichorski
The work presented is a three-part set of studies containing a comparative analysis of the displacement state of rectangular concrete deep beams made of concrete of different classes of very high strength, loaded dynamically. The analysis was carried out on the basis of the method presented in this paper [1], which allows for the physical nonlinearity of structural materials: concrete and reinforcing steel to be taken into account. Each part of the work contains the results of numerical solutions of the displacement state of the deep beams separately for the concrete strength of C100 grade, C200 grade, and C300 grade, in each case reinforced with ordinary steel and increased strength steel. Comparative analysis is carried out in Part Two and Part Three, where the results obtained in these parts are respectively compared with the results obtained in the preceding parts. The analysis includes the mutual relations of mechanisms for achieving dynamic load carrying — capacity. The results describing the variation of displacements in time indicate the characteristic features of the deep beam effort and allow for the inference on reaching the state of the dynamic load carrying — capacity. In general, the work confirmed the accuracy of the assumptions and deformation models of concrete and steel as well as the effectiveness of methods of analysis proposed in paper [1] for the problems of numerical simulation of reinforced concrete deep beams behaviour under dynamic loading. The key assumptions used in the analysis are presented in the first part of the paper. The characteristic features of structural materials: concrete and reinforcing steel are presented, taking into account the modified idea of modelling of the dynamic properties of concrete as a material of very high strength. An analysis of the displacement state of rectangular reinforced concrete deep beams made of very high strength concrete of C100 grade under dynamic load for two types of reinforcing steel — ordinary and increased strength — was carried out.
{"title":"Analysis of dynamic displacement of reinforced concrete deep beams made of high strength concrete. Part 1, Analysis of dynamic displacement of a reinforced concrete deep beam made of high strength C100 grade concrete","authors":"W. Cichorski","doi":"10.5604/01.3001.0011.8056","DOIUrl":"https://doi.org/10.5604/01.3001.0011.8056","url":null,"abstract":"The work presented is a three-part set of studies containing a comparative analysis of the displacement state of rectangular concrete deep beams made of concrete of different classes of very high strength, loaded dynamically. The analysis was carried out on the basis of the method presented in this paper [1], which allows for the physical nonlinearity of structural materials: concrete and reinforcing steel to be taken into account. Each part of the work contains the results of numerical solutions of the displacement state of the deep beams separately for the concrete strength of C100 grade, C200 grade, and C300 grade, in each case reinforced with ordinary steel and increased strength steel. Comparative analysis is carried out in Part Two and Part Three, where the results obtained in these parts are respectively compared with the results obtained in the preceding parts. The analysis includes the mutual relations of mechanisms for achieving dynamic load carrying — capacity. The results describing the variation of displacements in time indicate the characteristic features of the deep beam effort and allow for the inference on reaching the state of the dynamic load carrying — capacity. In general, the work confirmed the accuracy of the assumptions and deformation models of concrete and steel as well as the effectiveness of methods of analysis proposed in paper [1] for the problems of numerical simulation of reinforced concrete deep beams behaviour under dynamic loading. The key assumptions used in the analysis are presented in the first part of the paper. The characteristic features of structural materials: concrete and reinforcing steel are presented, taking into account the modified idea of modelling of the dynamic properties of concrete as a material of very high strength. An analysis of the displacement state of rectangular reinforced concrete deep beams made of very high strength concrete of C100 grade under dynamic load for two types of reinforcing steel — ordinary and increased strength — was carried out.","PeriodicalId":9068,"journal":{"name":"Biuletyn Wojskowej Akademii Technicznej","volume":"67 1","pages":"141-174"},"PeriodicalIF":0.0,"publicationDate":"2018-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48215590","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}
Pub Date : 2018-04-03DOI: 10.5604/01.3001.0011.8052
S. Grzeszczyk, A. Matuszek-Chmurowska
{"title":"Investigation of Reactive Powder Concrete (RPC)","authors":"S. Grzeszczyk, A. Matuszek-Chmurowska","doi":"10.5604/01.3001.0011.8052","DOIUrl":"https://doi.org/10.5604/01.3001.0011.8052","url":null,"abstract":"","PeriodicalId":9068,"journal":{"name":"Biuletyn Wojskowej Akademii Technicznej","volume":"67 1","pages":"127-140"},"PeriodicalIF":0.0,"publicationDate":"2018-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41701829","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}
Pub Date : 2018-04-03DOI: 10.5604/01.3001.0011.8034
K. Białek, J. Paś
{"title":"Analysis of the electromagnetic environment in an extensive railway area","authors":"K. Białek, J. Paś","doi":"10.5604/01.3001.0011.8034","DOIUrl":"https://doi.org/10.5604/01.3001.0011.8034","url":null,"abstract":"","PeriodicalId":9068,"journal":{"name":"Biuletyn Wojskowej Akademii Technicznej","volume":"67 1","pages":"55-64"},"PeriodicalIF":0.0,"publicationDate":"2018-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43249428","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}
Pub Date : 2018-04-03DOI: 10.5604/01.3001.0011.8037
J. Marszalek, M. Piechota
{"title":"Analysis of influence of random distribution of assembly clearance on deflection and load capacity of folding beams","authors":"J. Marszalek, M. Piechota","doi":"10.5604/01.3001.0011.8037","DOIUrl":"https://doi.org/10.5604/01.3001.0011.8037","url":null,"abstract":"","PeriodicalId":9068,"journal":{"name":"Biuletyn Wojskowej Akademii Technicznej","volume":"67 1","pages":"93-105"},"PeriodicalIF":0.0,"publicationDate":"2018-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45105941","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}
Pub Date : 2018-04-03DOI: 10.5604/01.3001.0011.8018
S. Duer, D. Bernatowicz, Pawel Wrzesien, R. Duer
This paper presents the essence of an investigation of a complex technical object with the use of four-valued logic. To this end, an intelligent diagnostic system (DIAG 2) is described. A special feature of this system was its capability of inferring k at {k = 4, 3, 2}, in which case the logic {k = 4} is applied. An important part of this work was to present the theoretical foundations describing the essence of inference in the four-valued logic contemplated. It was also pointed out that the basis for classification of states in the multiple-valued logic of the diagnostic system (DIAG 2) was the permissible interval of changes in the values of diagnostic signal features. Four-valued logic testing was applied to a system of wind turbine equipment.
{"title":"Diagnosing of a complex technical object in four-valued logic","authors":"S. Duer, D. Bernatowicz, Pawel Wrzesien, R. Duer","doi":"10.5604/01.3001.0011.8018","DOIUrl":"https://doi.org/10.5604/01.3001.0011.8018","url":null,"abstract":"This paper presents the essence of an investigation of a complex technical object with the use of four-valued logic. To this end, an intelligent diagnostic system (DIAG 2) is described. A special feature of this system was its capability of inferring k at {k = 4, 3, 2}, in which case the logic {k = 4} is applied. An important part of this work was to present the theoretical foundations describing the essence of inference in the four-valued logic contemplated. It was also pointed out that the basis for classification of states in the multiple-valued logic of the diagnostic system (DIAG 2) was the permissible interval of changes in the values of diagnostic signal features. Four-valued logic testing was applied to a system of wind turbine equipment.","PeriodicalId":9068,"journal":{"name":"Biuletyn Wojskowej Akademii Technicznej","volume":"67 1","pages":"33-42"},"PeriodicalIF":0.0,"publicationDate":"2018-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42535912","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}
Pub Date : 2017-12-31DOI: 10.5604/01.3001.0010.8181
W. Sulej, Krzysztof Murawski
{"title":"Measurement of shape mapping accuracy of a flaccid membrane of a heart assist pump","authors":"W. Sulej, Krzysztof Murawski","doi":"10.5604/01.3001.0010.8181","DOIUrl":"https://doi.org/10.5604/01.3001.0010.8181","url":null,"abstract":"","PeriodicalId":9068,"journal":{"name":"Biuletyn Wojskowej Akademii Technicznej","volume":"66 1","pages":"45-59"},"PeriodicalIF":0.0,"publicationDate":"2017-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46574111","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}
Pub Date : 2017-12-31DOI: 10.5604/01.3001.0010.8228
A. Szcześniak, A. Stolarski, J. Zychowicz
{"title":"Assessment of the influence of fly ash additive on the tightness of concrete with furnace cement CEM IIIA 32,5N","authors":"A. Szcześniak, A. Stolarski, J. Zychowicz","doi":"10.5604/01.3001.0010.8228","DOIUrl":"https://doi.org/10.5604/01.3001.0010.8228","url":null,"abstract":"","PeriodicalId":9068,"journal":{"name":"Biuletyn Wojskowej Akademii Technicznej","volume":"66 1","pages":"153-164"},"PeriodicalIF":0.0,"publicationDate":"2017-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41541487","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}
Pub Date : 2017-12-31DOI: 10.5604/01.3001.0010.8179
Ł. Sobolewski
{"title":"Predicting the Lithuanian Timescale UTC(LT) by means of GMDH neural network","authors":"Ł. Sobolewski","doi":"10.5604/01.3001.0010.8179","DOIUrl":"https://doi.org/10.5604/01.3001.0010.8179","url":null,"abstract":"","PeriodicalId":9068,"journal":{"name":"Biuletyn Wojskowej Akademii Technicznej","volume":"66 1","pages":"33-44"},"PeriodicalIF":0.0,"publicationDate":"2017-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44868388","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}
Pub Date : 2017-12-31DOI: 10.5604/01.3001.0010.8232
C. Suchocki, J. Katzer, Marzena Damięcka-Suchocka, Elżbieta Kuźmińska, J. Rapiński
{"title":"Monitoring zawilgocenia obiektu budowlanego z wykorzystaniem techniki naziemnego skaningu laserowego","authors":"C. Suchocki, J. Katzer, Marzena Damięcka-Suchocka, Elżbieta Kuźmińska, J. Rapiński","doi":"10.5604/01.3001.0010.8232","DOIUrl":"https://doi.org/10.5604/01.3001.0010.8232","url":null,"abstract":"","PeriodicalId":9068,"journal":{"name":"Biuletyn Wojskowej Akademii Technicznej","volume":"66 1","pages":"165-177"},"PeriodicalIF":0.0,"publicationDate":"2017-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41866113","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}
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