Pub Date : 2019-07-05DOI: 10.26906/znp.2019.52.1673
M. Nesterenko, Maksum Skoryk, M. Shapoval, M. Nesterenko
The new rolling roof fairing installed in the tractor non-bonnet cab main train layout constructing are given. After analyzingexisting exhausting elements installed on the tractor highway trailer and a large number of roof rails, it has been substantiatedthe expediency of installing a movable rope on the tractor roof, which can change the angle of the trailer airflow link with thecombination of two movements - vertical and horizontal. The combination of these movements enables to change the parametersof streamline. For this purpose, the basic hydraulic control scheme is designed, which has a number of advantages:the starting units movements smoothness, the ability to continuously adjust the speed in a wide range, low inertia, simplicityof management and automation, high operational reliability and resistance to overload. Due to the modern capabilities anddevelopment of sophisticated electronic control systems through the introduction of such a system in the control process ofhydraulic cylinders can ensure the system reliability, efficiency, ergonomics and safety equipment.
{"title":"Air velocity modeling velocity of the air around the trunk road train with installed rolling roof fairings","authors":"M. Nesterenko, Maksum Skoryk, M. Shapoval, M. Nesterenko","doi":"10.26906/znp.2019.52.1673","DOIUrl":"https://doi.org/10.26906/znp.2019.52.1673","url":null,"abstract":"The new rolling roof fairing installed in the tractor non-bonnet cab main train layout constructing are given. After analyzingexisting exhausting elements installed on the tractor highway trailer and a large number of roof rails, it has been substantiatedthe expediency of installing a movable rope on the tractor roof, which can change the angle of the trailer airflow link with thecombination of two movements - vertical and horizontal. The combination of these movements enables to change the parametersof streamline. For this purpose, the basic hydraulic control scheme is designed, which has a number of advantages:the starting units movements smoothness, the ability to continuously adjust the speed in a wide range, low inertia, simplicityof management and automation, high operational reliability and resistance to overload. Due to the modern capabilities anddevelopment of sophisticated electronic control systems through the introduction of such a system in the control process ofhydraulic cylinders can ensure the system reliability, efficiency, ergonomics and safety equipment.","PeriodicalId":32910,"journal":{"name":"Zbirnik naukovikh prats'' Seriia Galuzeve mashinobuduvannia budivnitstvo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76089848","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 : 2019-07-05DOI: 10.26906/znp.2019.52.1700
R. Pahomov, O. Zyma, E. Dyachenko
The work is devoted to the analysis of injury cases from the electric current influence on the oil and gas complex objects. Theprinciples, the main provisions of the system analysis and the classification of electric traumatism cases at power enterprisesare presented. Main causes and patterns of the electric trauma occurrence on dependence of the various production features,as well as for various categories of workers are determined in the article. The structural scheme of the relationship betweenthe elements of the system "man – electrical engineering – production environment" is given. A set of preventive measuresand practical recommendations that can be successfully applied to assess occupational risk and reduce the level of injuryfrom electric current in the energy sector of Ukraine is proposed.
{"title":"Oil and gas complex of Ukraine: analysis and prevention of electrical traumatism","authors":"R. Pahomov, O. Zyma, E. Dyachenko","doi":"10.26906/znp.2019.52.1700","DOIUrl":"https://doi.org/10.26906/znp.2019.52.1700","url":null,"abstract":"The work is devoted to the analysis of injury cases from the electric current influence on the oil and gas complex objects. Theprinciples, the main provisions of the system analysis and the classification of electric traumatism cases at power enterprisesare presented. Main causes and patterns of the electric trauma occurrence on dependence of the various production features,as well as for various categories of workers are determined in the article. The structural scheme of the relationship betweenthe elements of the system \"man – electrical engineering – production environment\" is given. A set of preventive measuresand practical recommendations that can be successfully applied to assess occupational risk and reduce the level of injuryfrom electric current in the energy sector of Ukraine is proposed.","PeriodicalId":32910,"journal":{"name":"Zbirnik naukovikh prats'' Seriia Galuzeve mashinobuduvannia budivnitstvo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73386554","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 : 2019-07-05DOI: 10.26906/znp.2019.52.1679
Оksana Dovzhenko, V. Pohribnyi, Оlena Maliovana, L. Karabash
Application boundaries of the truss analogy and disk model methods to the strength calculation of reinforced concrete flexuralelements inclined sections are established. Areas of structures failure by virtual compressed element (inclined strip) andcompressed zone over dangerous inclined crack under the shear force are determined. The criterion of minimum limit force,which is perceived by the elements, is applied. Influence of concrete class, relative shear span and transverse reinforcementintensity on elements strength based on variational method in plasticity theory is specified. The data concerning the values ofthe transverse reinforcement coefficient at the boundaries of the failure from shear within the inclined strip and compressedzone over the dangerous crack are obtained.
{"title":"Improved calculation method of reinforced concrete elements strength on inclined sections","authors":"Оksana Dovzhenko, V. Pohribnyi, Оlena Maliovana, L. Karabash","doi":"10.26906/znp.2019.52.1679","DOIUrl":"https://doi.org/10.26906/znp.2019.52.1679","url":null,"abstract":"Application boundaries of the truss analogy and disk model methods to the strength calculation of reinforced concrete flexuralelements inclined sections are established. Areas of structures failure by virtual compressed element (inclined strip) andcompressed zone over dangerous inclined crack under the shear force are determined. The criterion of minimum limit force,which is perceived by the elements, is applied. Influence of concrete class, relative shear span and transverse reinforcementintensity on elements strength based on variational method in plasticity theory is specified. The data concerning the values ofthe transverse reinforcement coefficient at the boundaries of the failure from shear within the inclined strip and compressedzone over the dangerous crack are obtained.","PeriodicalId":32910,"journal":{"name":"Zbirnik naukovikh prats'' Seriia Galuzeve mashinobuduvannia budivnitstvo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74789256","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 : 2019-07-05DOI: 10.26906/znp.2019.52.1672
V. Lyutenko, M. Nesterenko, Hryhoriy Durachenko, M. Nesterenko
Recently, electric vehicles are becoming widespread throughout the world, so the research is relevant. The results of performedresearches of dynamics electric car on the basis of ZAZ-1102 are presented. The calculation method of dynamic loadsin electric and mechanical systems of electric cars is developed. The technique considers the electromagnetic processes in theengine, the elasticity of the elastic parts, the oscillatory processes, and damping in the elastic links. On the basis of the developedmathematical model and using the mathematical software apparatus MathCAD, calculations of transients in the electricand mechanical systems have been obtained, based on the obtained results of the research, the constructed graphs.The obtained results of the study of the electric motor drive mechanism can be used for designing, calculating and determiningthe dynamic loads of electric cars and their hybrids.
{"title":"Research of electric car dynamics","authors":"V. Lyutenko, M. Nesterenko, Hryhoriy Durachenko, M. Nesterenko","doi":"10.26906/znp.2019.52.1672","DOIUrl":"https://doi.org/10.26906/znp.2019.52.1672","url":null,"abstract":"Recently, electric vehicles are becoming widespread throughout the world, so the research is relevant. The results of performedresearches of dynamics electric car on the basis of ZAZ-1102 are presented. The calculation method of dynamic loadsin electric and mechanical systems of electric cars is developed. The technique considers the electromagnetic processes in theengine, the elasticity of the elastic parts, the oscillatory processes, and damping in the elastic links. On the basis of the developedmathematical model and using the mathematical software apparatus MathCAD, calculations of transients in the electricand mechanical systems have been obtained, based on the obtained results of the research, the constructed graphs.The obtained results of the study of the electric motor drive mechanism can be used for designing, calculating and determiningthe dynamic loads of electric cars and their hybrids.","PeriodicalId":32910,"journal":{"name":"Zbirnik naukovikh prats'' Seriia Galuzeve mashinobuduvannia budivnitstvo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73679377","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 : 2019-07-05DOI: 10.26906/znp.2019.52.1698
T. Dmytrenko, A. Dmytrenko, T. Derkach, L. Klochko
The problems of society informational support, which demand the creation of modern information management systems fordifferent objects were considered. Particular attention was paid to the detailed description and analysis of existing services forkeeping records of scientific activity in higher educational institutions. The necessity of module creating for management thescientific and technical activities, which will allow to optimize the procedure for conducting reports on scientific, technicaland innovative activities, to expand the possibilities for the results analysis, to ensure transparency and objectivity in the procedureof evaluating the teachers’ activities, was revealed and explained. The developed sections of the technical enquirywere given. On the basis of the conducted research the software implemented module for management the scientific andtechnical activity of the department.
{"title":"The scientific and technical activity module development for the department of structures from metal, wood and plastics","authors":"T. Dmytrenko, A. Dmytrenko, T. Derkach, L. Klochko","doi":"10.26906/znp.2019.52.1698","DOIUrl":"https://doi.org/10.26906/znp.2019.52.1698","url":null,"abstract":"The problems of society informational support, which demand the creation of modern information management systems fordifferent objects were considered. Particular attention was paid to the detailed description and analysis of existing services forkeeping records of scientific activity in higher educational institutions. The necessity of module creating for management thescientific and technical activities, which will allow to optimize the procedure for conducting reports on scientific, technicaland innovative activities, to expand the possibilities for the results analysis, to ensure transparency and objectivity in the procedureof evaluating the teachers’ activities, was revealed and explained. The developed sections of the technical enquirywere given. On the basis of the conducted research the software implemented module for management the scientific andtechnical activity of the department.","PeriodicalId":32910,"journal":{"name":"Zbirnik naukovikh prats'' Seriia Galuzeve mashinobuduvannia budivnitstvo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75350774","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 : 2019-07-05DOI: 10.26906/znp.2019.52.1690
O. Mykhailovska, T. Nesterenko
In the paper it is confirmed that any theoretical data inferior to precisely measured data due to the impossibility ofconsidering all the factors influencing on the oscillation process. The fluctuations magnitude of a non-residential building inPoltava and the dynamic influence on the building structure and the people who can be there periodically are experimentallyinvestigated. To evaluate the vibration impact, it is necessary to compare measured data with the permissible level ofvibration in public buildings. The recommendations for the further building exploitation are based on the building structuresvibration acceleration measurements results.
{"title":"Dynamic activity of military transportation investigation at the construction site","authors":"O. Mykhailovska, T. Nesterenko","doi":"10.26906/znp.2019.52.1690","DOIUrl":"https://doi.org/10.26906/znp.2019.52.1690","url":null,"abstract":"In the paper it is confirmed that any theoretical data inferior to precisely measured data due to the impossibility ofconsidering all the factors influencing on the oscillation process. The fluctuations magnitude of a non-residential building inPoltava and the dynamic influence on the building structure and the people who can be there periodically are experimentallyinvestigated. To evaluate the vibration impact, it is necessary to compare measured data with the permissible level ofvibration in public buildings. The recommendations for the further building exploitation are based on the building structuresvibration acceleration measurements results.","PeriodicalId":32910,"journal":{"name":"Zbirnik naukovikh prats'' Seriia Galuzeve mashinobuduvannia budivnitstvo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90466556","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 : 2019-07-05DOI: 10.26906/znp.2019.52.1680
Іvan Tegza
The article presents the results of the experimental study of the peculiarities of the work under the calculation load of planarsuperstructural plates of the developed system of non-beating overlap. Great attention is paid to the construction of bearingstructures prototype. The design of auxiliary equipment is described, which enabled to test the investigating U-block in conditionsthat imitate real resistance. The method of performing experimental research with indication of methods and means ofmeasuring geometrical and physical parameters that characterize the stress-strain state and bearing capacity of the test plate isgiven. The conducted investigations enabled to determine the nature of deformation and destruction of the superstructureslabs as a separate element in the developed system of non-beating ceiling. Attention is drawn to the fact that the achievementof the bearing capacity is not accompanied by the process of destruction, but is characterized by significant movementsof the supporting plots in the vertical plane
{"title":"Experimantal researches of the achievements of a current burdening course plates","authors":"Іvan Tegza","doi":"10.26906/znp.2019.52.1680","DOIUrl":"https://doi.org/10.26906/znp.2019.52.1680","url":null,"abstract":"The article presents the results of the experimental study of the peculiarities of the work under the calculation load of planarsuperstructural plates of the developed system of non-beating overlap. Great attention is paid to the construction of bearingstructures prototype. The design of auxiliary equipment is described, which enabled to test the investigating U-block in conditionsthat imitate real resistance. The method of performing experimental research with indication of methods and means ofmeasuring geometrical and physical parameters that characterize the stress-strain state and bearing capacity of the test plate isgiven. The conducted investigations enabled to determine the nature of deformation and destruction of the superstructureslabs as a separate element in the developed system of non-beating ceiling. Attention is drawn to the fact that the achievementof the bearing capacity is not accompanied by the process of destruction, but is characterized by significant movementsof the supporting plots in the vertical plane","PeriodicalId":32910,"journal":{"name":"Zbirnik naukovikh prats'' Seriia Galuzeve mashinobuduvannia budivnitstvo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87626784","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 : 2019-07-05DOI: 10.26906/znp.2019.52.1677
A. Pavlikov, O. Harkava
The suggestions for the engineering calculation of the reinforced concrete flexural members strength during the elastic workof steel are given. The engineering technique is developed on the basis of a nonlinear deformation model application usingfractionally rational function for describing the process of concrete compressed area deformation and other prerequisites thatare recommended by current norms for the reinforced concrete structures design. The analytical dependences have been obtainedfor determining the neutral axis depth and the calculation of the internal bending moment value perceived by the beamin the normal section. The task of determining the load-bearing capacity of the bending element is reduced to searching bythe direct analytical dependences the maximum value of the bending moment that can be perceived by the beam at givenstrains of the most compressed rib of a cross-section.
{"title":"Strength analysis of reinforced concrete flexural members at not entirely use of reinforcement resistance","authors":"A. Pavlikov, O. Harkava","doi":"10.26906/znp.2019.52.1677","DOIUrl":"https://doi.org/10.26906/znp.2019.52.1677","url":null,"abstract":"The suggestions for the engineering calculation of the reinforced concrete flexural members strength during the elastic workof steel are given. The engineering technique is developed on the basis of a nonlinear deformation model application usingfractionally rational function for describing the process of concrete compressed area deformation and other prerequisites thatare recommended by current norms for the reinforced concrete structures design. The analytical dependences have been obtainedfor determining the neutral axis depth and the calculation of the internal bending moment value perceived by the beamin the normal section. The task of determining the load-bearing capacity of the bending element is reduced to searching bythe direct analytical dependences the maximum value of the bending moment that can be perceived by the beam at givenstrains of the most compressed rib of a cross-section.","PeriodicalId":32910,"journal":{"name":"Zbirnik naukovikh prats'' Seriia Galuzeve mashinobuduvannia budivnitstvo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78995787","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 : 2019-07-05DOI: 10.26906/znp.2019.52.1684
Y. Vynnykov, M. Hajiyev, A. Aniskin, I. Miroshnychenko
Ways to improve the methods of calculating the foundations bases’ settlements by increasing the reliability of determiningthe soil compressibility indices are substantiated. The complex approach to refinement of the buildings bases' settlements calculationby the layer summation method is investigated by accounting for the soil deformation modulus variability in the fullpressure range perceived by the base at loading; soil strength coefficient βZ; soil deformation anisotropy by elastic orthotropicmodel; tendencies to magnitude variation in the soil deformation modulus in depth of the body under the foundations andwithin the artificial bases built with the soil compaction. There was also proved the possibility of increasing the accuracy ofthe predicting method for the buildings' foundations base settling using the soil compression index and accounting for thepressure effect on the soil deformation parameters in depth of the compressible strata.
{"title":"Improvement of settlement calculations of building foundations by increasing the reliability of determining soil compressibility indices","authors":"Y. Vynnykov, M. Hajiyev, A. Aniskin, I. Miroshnychenko","doi":"10.26906/znp.2019.52.1684","DOIUrl":"https://doi.org/10.26906/znp.2019.52.1684","url":null,"abstract":"Ways to improve the methods of calculating the foundations bases’ settlements by increasing the reliability of determiningthe soil compressibility indices are substantiated. The complex approach to refinement of the buildings bases' settlements calculationby the layer summation method is investigated by accounting for the soil deformation modulus variability in the fullpressure range perceived by the base at loading; soil strength coefficient βZ; soil deformation anisotropy by elastic orthotropicmodel; tendencies to magnitude variation in the soil deformation modulus in depth of the body under the foundations andwithin the artificial bases built with the soil compaction. There was also proved the possibility of increasing the accuracy ofthe predicting method for the buildings' foundations base settling using the soil compression index and accounting for thepressure effect on the soil deformation parameters in depth of the compressible strata.","PeriodicalId":32910,"journal":{"name":"Zbirnik naukovikh prats'' Seriia Galuzeve mashinobuduvannia budivnitstvo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74821931","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 : 2019-07-05DOI: 10.26906/znp.2019.52.1699
I. Meneiliuk, O. Nikiforov
The article presents the results of optimizing the construction duration of the object and the average monthly financing intensityof the shopping center construction under organizational and financial constraints, namely: the work processes alignment– 68-76%; the maximum monthly financing intensity – 40 million UAN; number of work brigades – 1-2; the maximum constructionduration – 360 days. There were developed the method for optimizing and the results of numerical modeling of organizationaland financial decisions were obtained. The most efficient models of construction were identified by graphicalway under limited conditions of their implementation.
{"title":"Optimization of shopping center construction under organizational and financial constraints","authors":"I. Meneiliuk, O. Nikiforov","doi":"10.26906/znp.2019.52.1699","DOIUrl":"https://doi.org/10.26906/znp.2019.52.1699","url":null,"abstract":"The article presents the results of optimizing the construction duration of the object and the average monthly financing intensityof the shopping center construction under organizational and financial constraints, namely: the work processes alignment– 68-76%; the maximum monthly financing intensity – 40 million UAN; number of work brigades – 1-2; the maximum constructionduration – 360 days. There were developed the method for optimizing and the results of numerical modeling of organizationaland financial decisions were obtained. The most efficient models of construction were identified by graphicalway under limited conditions of their implementation.","PeriodicalId":32910,"journal":{"name":"Zbirnik naukovikh prats'' Seriia Galuzeve mashinobuduvannia budivnitstvo","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87294500","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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