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Bulletin of Lviv National Agrarian University. Agroengineering Research最新文献

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Protective effect of phosphate-nitrate composition under conditions of corrosion-mechanical destruction of duraluminium surface 磷酸盐-硝酸盐组合物对硬铝表面腐蚀-机械破坏的保护作用
Bulletin of Lviv National Agrarian University. Agroengineering Research Pub Date : 2020-12-01 DOI: 10.31734/agroengineering2020.24.115
O. Khlopyk, I. Zin, R. Kuzminskyi, M. Tymus’
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引用次数: 0
Structural-mathematical modeling of the different methods of initiating an induction motor 感应电动机不同起动方式的结构数学建模
Bulletin of Lviv National Agrarian University. Agroengineering Research Pub Date : 2019-12-17 DOI: 10.31734/agroengineering2019.23.075
D. Hrechyn, I. Drobot, S. Khimka, M. Hoshko
{"title":"Structural-mathematical modeling of the different methods of initiating an induction motor","authors":"D. Hrechyn, I. Drobot, S. Khimka, M. Hoshko","doi":"10.31734/agroengineering2019.23.075","DOIUrl":"https://doi.org/10.31734/agroengineering2019.23.075","url":null,"abstract":"The work determines problem of frequent starting of electric motors in the mechanisms, operating in repeated-short-term modes, as well as energy saving during start-up. In production processes, the most extensive use is inherent in an induction motor with a short-circuited rotor. The analysis of publications has shown the feasibility of conducting research in the above-mentioned direction to provide the best technical and economic indicators, as well as the use of a regulated electric drive, the use of converters between the network and the electric motor, etc. The research objective is to investigate the various methods of starting of an induction motor with the help of a structural and mathematical model of the induction motor in MATLAB / Simulink environment, as well as additional equipment. The purpose of the work is to investigate the various methods of starting an induction motor with a short-circuited rotor, using the constructed models. The research described a constructed structural-mathematical model of induction motor with a short-circuited rotor, as well as additional equipment: switching by the «star-triangle» scheme, the device of smooth start-up, frequency converter. The article describes simulation of four methods of starting of an induction motor with a short-circuited rotor under load, particularly a direct one, with switching according to the «star-triangle» scheme, using a soft start device, with a frequency converter. The first two start-up methods provide a simple and inexpensive control scheme, and by means of technical means such as a soft start device and frequency converter, an adjustable and controlled start of the induction motor can be obtained, namely, the startup, introduction of restrictions, regulation or provision of a certain value of moment, starting current.","PeriodicalId":131553,"journal":{"name":"Bulletin of Lviv National Agrarian University. Agroengineering Research","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124888037","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
Mathematical model of process of moving of the ground up root crops screw conveyer-grinding 碎根作物螺旋输送机粉碎运动过程的数学模型
Bulletin of Lviv National Agrarian University. Agroengineering Research Pub Date : 2018-12-01 DOI: 10.31734/AGROENGINEERING2018.01.161
Yu. Hrytsay
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引用次数: 0
Enhancement of the efficiency of shaking conveyors 提高振动输送机的工作效率
Bulletin of Lviv National Agrarian University. Agroengineering Research Pub Date : 2018-12-01 DOI: 10.31734/AGROENGINEERING2018.01.086
P. Korunyak, S. Baranovych, I. Vlasyuk
{"title":"Enhancement of the efficiency of shaking conveyors","authors":"P. Korunyak, S. Baranovych, I. Vlasyuk","doi":"10.31734/AGROENGINEERING2018.01.086","DOIUrl":"https://doi.org/10.31734/AGROENGINEERING2018.01.086","url":null,"abstract":"","PeriodicalId":131553,"journal":{"name":"Bulletin of Lviv National Agrarian University. Agroengineering Research","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125619451","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
Mathematical modeling of vyroaspiration separation of seed material 种子物料热吸分离的数学模型
Bulletin of Lviv National Agrarian University. Agroengineering Research Pub Date : 2018-12-01 DOI: 10.31734/AGROENGINEERING2018.01.172
I. Palamarchuk, S. Kiurchev, V. Verkholantseva, O. Kolodii
{"title":"Mathematical modeling of vyroaspiration separation of seed material","authors":"I. Palamarchuk, S. Kiurchev, V. Verkholantseva, O. Kolodii","doi":"10.31734/AGROENGINEERING2018.01.172","DOIUrl":"https://doi.org/10.31734/AGROENGINEERING2018.01.172","url":null,"abstract":"","PeriodicalId":131553,"journal":{"name":"Bulletin of Lviv National Agrarian University. Agroengineering Research","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130760259","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
Improvement of wear resistance of aluminum alloy D16 by different methods of surface hardening 不同表面硬化方法提高D16铝合金耐磨性
Bulletin of Lviv National Agrarian University. Agroengineering Research Pub Date : 2018-12-01 DOI: 10.31734/AGROENGINEERING2018.01.153
O. Kalahan, Kh. R. Zadorozhna, M. Student, H. H. Veselivs’ka
{"title":"Improvement of wear resistance of aluminum alloy D16 by different methods of surface hardening","authors":"O. Kalahan, Kh. R. Zadorozhna, M. Student, H. H. Veselivs’ka","doi":"10.31734/AGROENGINEERING2018.01.153","DOIUrl":"https://doi.org/10.31734/AGROENGINEERING2018.01.153","url":null,"abstract":"","PeriodicalId":131553,"journal":{"name":"Bulletin of Lviv National Agrarian University. Agroengineering Research","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126873625","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
Theoretical study of parameters of the «drum – garlic clove – fork» system of the garlic planter 大蒜播种机“桶-蒜瓣-叉”系统参数的理论研究
Bulletin of Lviv National Agrarian University. Agroengineering Research Pub Date : 2018-12-01 DOI: 10.31734/AGROENGINEERING2018.01.077
O. Semen, D. Kuzenko, Y. Semen
{"title":"Theoretical study of parameters of the «drum – garlic clove – fork» system of the garlic planter","authors":"O. Semen, D. Kuzenko, Y. Semen","doi":"10.31734/AGROENGINEERING2018.01.077","DOIUrl":"https://doi.org/10.31734/AGROENGINEERING2018.01.077","url":null,"abstract":"","PeriodicalId":131553,"journal":{"name":"Bulletin of Lviv National Agrarian University. Agroengineering Research","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123867328","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
REVIEW OF REOLOGICAL MODELS 地质模型综述
Bulletin of Lviv National Agrarian University. Agroengineering Research Pub Date : 2018-12-01 DOI: 10.31734/AGROENGINEERING2018.01.022
R. Sheremeta
{"title":"REVIEW OF REOLOGICAL MODELS","authors":"R. Sheremeta","doi":"10.31734/AGROENGINEERING2018.01.022","DOIUrl":"https://doi.org/10.31734/AGROENGINEERING2018.01.022","url":null,"abstract":"","PeriodicalId":131553,"journal":{"name":"Bulletin of Lviv National Agrarian University. Agroengineering Research","volume":"4 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113943174","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
Analysis of steady-state harmonic electric skin-effect in the bypass of the curves of Emde Emde曲线旁路稳态谐波电趋肤效应分析
Bulletin of Lviv National Agrarian University. Agroengineering Research Pub Date : 2018-12-01 DOI: 10.31734/AGROENGINEERING2018.01.148
V. Tchaban, A. Herman
{"title":"Analysis of steady-state harmonic electric skin-effect in the bypass of the curves of Emde","authors":"V. Tchaban, A. Herman","doi":"10.31734/AGROENGINEERING2018.01.148","DOIUrl":"https://doi.org/10.31734/AGROENGINEERING2018.01.148","url":null,"abstract":"","PeriodicalId":131553,"journal":{"name":"Bulletin of Lviv National Agrarian University. Agroengineering Research","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124968072","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 classical method of linear circuits transients with polynomial inputs 多项式输入线性电路瞬态的经典方法
Bulletin of Lviv National Agrarian University. Agroengineering Research Pub Date : 2018-12-01 DOI: 10.31734/AGROENGINEERING2018.01.140
D. Hrechyn, I. Drobot, A. Herman
{"title":"The classical method of linear circuits transients with polynomial inputs","authors":"D. Hrechyn, I. Drobot, A. Herman","doi":"10.31734/AGROENGINEERING2018.01.140","DOIUrl":"https://doi.org/10.31734/AGROENGINEERING2018.01.140","url":null,"abstract":"","PeriodicalId":131553,"journal":{"name":"Bulletin of Lviv National Agrarian University. Agroengineering Research","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116431443","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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