Dissertations / Theses on the topic 'Гідромашина'
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Самородов, Вадим Борисович, and Вадим Михайлович Шевцов. "Дослідження теплових режимів роботи гідрооб'ємнї передачі в складі гідрооб’ємно механічної трансмісії трактора." Thesis, Національний технічний університет "Харківський політехнічний інститут", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/40832.
Full textКожушко, Андрій Павлович. "Порівняльний аналіз результатів експериментальних та теоретичних досліджень робочих процесів у безступінчастих гідрооб’ємно-механічних трансмісіях." Thesis, ВД "Гельветика", 2014. http://repository.kpi.kharkov.ua/handle/KhPI-Press/42280.
Full textШевцов, Вадим Михайлович. "Оптимальні режими роботи трактора оснащеного гідрооб'ємно механічною трансмісією з урахуванням температурних режимів." Thesis, Національний технічний університет "Харківський політехнічний інститут", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/40833.
Full textШевцов, Вадим Михайлович. "Аналіз температурних режимів роботи гідрообм'ємної передачі в складі гідрооб'ємно-механічної трансмісії трактора." Thesis, Baltija Publishing, 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/40841.
Full textРєзва, Ксенія Сергіївна. "Удосконалення проточних частин високонапірних оборотних гідромашин на основі чисельного моделювання їх гідродинамічних характеристик." Thesis, Національний технічний університет "Харківський політехнічний інститут", 2019. http://repository.kpi.kharkov.ua/handle/KhPI-Press/40009.
Full textThesis for granting the Degree of Candidate of Technical sciences in speciality 05.05.17 – Hydraulic machines and hydropneumatic units. – National Technical University "Kharkiv Polytechnic Institute", 2019. The tеhesis is devoted to the solution of the scientific and practical problem of improvement of the water passages of the high-pressure reversible hydraulic due to calculation and analysis their hydrodynamic characteristics. Based on the review of the trends in the development of hydropower engineering in Ukraine and given the role of high-pressure reversible hydraulic machines in the United Power System, it was noted that the designing a new flow parts is topical task. Advantages and disadvantages of the existing methods for research hydrodynamic processes in water passages of reversible hydraulic machines were identified after their analysis. The results of the calculation of the hydrodynamic characteristics of the elements of the water passages based on the method of averaged dimensionless parameters using the example of reversible hydraulic machines OPO200-B-100 and OPO500-B-100 were demonstrated. The mathematical model of the hydraulic machine working process based on a block-hierarchical approach was used to study the energy balance in the turbine and pump modes of hydraulic machines. The influence of the geometrical parameters of the elements of the water passage on the performance was determined: how the angle of flow in the spiral casing (cп ), the height of the wicket gate (b0 D) and the shape of the wicket gate profile influence the value of the coefficient resistance in the wicket gate. A numerical study of the three-dimensional flow of fluid in the water passage of high-pressure reversible hydraulic machines was carried out using the CFD software. This program allows determining the character of the flow and presenting the fields of distribution of velocity components, pressure and streamlines. The balances of energy were compiled: for the OPO200-B-100 in the turbine and pump operation modes, for the OPO500-B-100 in the turbine operation mode. It is noted that the distribution of losses on the elements of the water passage is not uniform: for the OPO200-B-100, the greatest part of the total losses are losses in the runner (about 56%), for OPO500-B-100 - losses in the inlet (about 62%). The main points for determining the optimal operating mode of the reversible hydraulic machine are described. The modified inlet for low-speed high-pressure hydraulic machine OPO500-B-100 was proposed and investigated to increase energy performance of hydraulic machine. The spiral casing was expanded, the number of stay vane blades and wicket gate blades were reduced to 16. As a result of the calculations of the modified inlet, the obtained results showed that the second variant made it possible to better align the elements of the water passage and the hydraulic efficiency increased by 2 %.
Рєзва, Ксенія Сергіївна. "Удосконалення проточних частин високонапірних оборотних гідромашин на основі чисельного моделювання їх гідродинамічних характеристик." Thesis, Національний технічний університет "Харківський політехнічний інститут", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/40011.
Full textThesis for granting the Degree of Candidate of Technical sciences in speciality 05.05.17 – Hydraulic machines and hydropneumatic units. – National Technical University "Kharkiv Polytechnic Institute", 2019. The tеhesis is devoted to the solution of the scientific and practical problem of improvement of the water passages of the high-pressure reversible hydraulic due to calculation and analysis their hydrodynamic characteristics. Based on the review of the trends in the development of hydropower engineering in Ukraine and given the role of high-pressure reversible hydraulic machines in the United Power System, it was noted that the designing a new flow parts is topical task. Advantages and disadvantages of the existing methods for research hydrodynamic processes in water passages of reversible hydraulic machines were identified after their analysis. The results of the calculation of the hydrodynamic characteristics of the elements of the water passages based on the method of averaged dimensionless parameters using the example of reversible hydraulic machines OPO200-B-100 and OPO500-B-100 were demonstrated. The mathematical model of the hydraulic machine working process based on a block-hierarchical approach was used to study the energy balance in the turbine and pump modes of hydraulic machines. The influence of the geometrical parameters of the elements of the water passage on the performance was determined: how the angle of flow in the spiral casing (cп ), the height of the wicket gate (b0 D) and the shape of the wicket gate profile influence the value of the coefficient resistance in the wicket gate. A numerical study of the three-dimensional flow of fluid in the water passage of high-pressure reversible hydraulic machines was carried out using the CFD software. This program allows determining the character of the flow and presenting the fields of distribution of velocity components, pressure and streamlines. The balances of energy were compiled: for the OPO200-B-100 in the turbine and pump operation modes, for the OPO500-B-100 in the turbine operation mode. It is noted that the distribution of losses on the elements of the water passage is not uniform: for the OPO200-B-100, the greatest part of the total losses are losses in the runner (about 56%), for OPO500-B-100 - losses in the inlet (about 62%). The main points for determining the optimal operating mode of the reversible hydraulic machine are described. The modified inlet for low-speed high-pressure hydraulic machine OPO500-B-100 was proposed and investigated to increase energy performance of hydraulic machine. The spiral casing was expanded, the number of stay vane blades and wicket gate blades were reduced to 16. As a result of the calculations of the modified inlet, the obtained results showed that the second variant made it possible to better align the elements of the water passage and the hydraulic efficiency increased by 2 %.
Ковальов, Ігор Олександрович, Игорь Александрович Ковалев, Ihor Oleksandrovych Kovalov, and М. А. Чубун. "Принцип контрроторності в лопатевих гідромашинах." Thesis, Сумський державний університет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/31442.
Full textКухтенков, Юрій Михайлович. "Нестаціонарність потоку від руху вихрових джгутів у висмоктуючих трубах гідромашин." Thesis, НТУ "ХПІ", 2017. http://repository.kpi.kharkov.ua/handle/KhPI-Press/38415.
Full textДранковський, Віктор Едуардович, Євгеній Сергійович Крупа, and Ксенія Сергіївна Рєзва. "Визначення характеристик трьохмірного потоку рідини в елементах проточної частини оборотних гідромашин." Thesis, Національний технічний університет "Харківський політехнічний інститут", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/46448.
Full textТкач, Павло Юрійович, Павел Юрьевич Ткач, and Pavlo Yuriiovych Tkach. "Можливість використання програм чисельної гідродинаміки для оцінки кавітаційно-ерозійних якостей гідромаши." Thesis, Сумський державний університет, 2016. http://essuir.sumdu.edu.ua/handle/123456789/45629.
Full textБеда, Іван Микитович, Иван Никитич Беда, Ivan Mykytovych Beda, Олександр Іванович Беда, Александр Иванович Беда, and Oleksandr Ivanovych Beda. "Рух рідини в кільцевих каналах шпаруватих ущільнень." Thesis, Видавництво СумДУ, 2011. http://essuir.sumdu.edu.ua/handle/123456789/8112.
Full textКрупа, Євгеній Сергійович, and Д. Ю. Бондаренко. "Вдосконалення проточних частин гідротурбін за допомогою моделювання тривимірної течії в'язкої рідини." Thesis, Національний технічний університет "Харківський політехнічний інститут", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/48728.
Full textКожушко, Андрій Павлович. "Підвищення техніко-економічних показників колісних тракторів з безступінчастими трансмісіями раціональною зміною параметрів регулювання гідромашин в процесі розгону." Thesis, НТУ "ХПІ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/20967.
Full textThe dissertation for obtaining a scientific degree of Candidate of Science (Technology) on the specialty 05.22.02 – automobiles and tractors. – National Technical University "Kharkiv Polytechnic Institute", Kharkiv, 2016. Dissertation is devoted to improve the technical and economic performance of wheeled tractors with hydrovolumetric mechanical transmission by detecting changes in the parameters of rational regulation of hydromachines during acceleration. Compiled complex mathematical model of the system tractor units improved the mathematical description of the changes tractive force on the hook by taking into account the process of deepening the plow in entering the technological mode of operation "plowing". The influence of changes in the working volume hydraulic parameters changes various laws regulating hydraulic machines hydrovolumetric transmission to dynamics of dispersal tractor unit. The influence of changes in time acceleration tractor unit under various laws of parameters regulating hydraulic machines hydrovolumetric transmission. Formed rational laws change control parameters of hydrovolumetric gear in which the increase of technical and economic parameters of the machine and tractor unit.
Кожушко, Андрій Павлович. "Підвищення техніко-економічних показників колісних тракторів з безступінчастими трансмісіями раціональною зміною параметрів регулювання гідромашин в процесі розгону." Thesis, НТУ "ХПІ", 2015. http://repository.kpi.kharkov.ua/handle/KhPI-Press/20971.
Full textThe dissertation for obtaining a scientific degree of Candidate of Science (Technology) on the specialty 05.22.02 – automobiles and tractors. – National Technical University "Kharkiv Polytechnic Institute", Kharkiv, 2016. Dissertation is devoted to improve the technical and economic performance of wheeled tractors with hydrovolumetric mechanical transmission by detecting changes in the parameters of rational regulation of hydromachines during acceleration. Compiled complex mathematical model of the system tractor units improved the mathematical description of the changes tractive force on the hook by taking into account the process of deepening the plow in entering the technological mode of operation "plowing". The influence of changes in the working volume hydraulic parameters changes various laws regulating hydraulic machines hydrovolumetric transmission to dynamics of dispersal tractor unit. The influence of changes in time acceleration tractor unit under various laws of parameters regulating hydraulic machines hydrovolumetric transmission. Formed rational laws change control parameters of hydrovolumetric gear in which the increase of technical and economic parameters of the machine and tractor unit.
Ткач, Павло Юрійович, Павел Юрьевич Ткач, and Pavlo Yuriiovych Tkach. "Методы оценки кавитационно-эрозионных качеств гидромашин." Thesis, Сумский государственный университет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/31451.
Full textОстроверх, Олександр Олегович. "Теоретичне обґрунтування використання безступінчастих гідрооб'ємно-механічних трансмісій на автомобілях для ремонту нафтогазових свердловин." Thesis, НТУ "ХПІ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/22585.
Full textThe dissertation for obtaining a scientific degree of Candidate of Science (Technology) on the specialty 05.22.02 – automobiles and tractors. –National Technical University "Kharkiv Polytechnic Institute", Kharkiv, 2016. The dissertation is devoted to the theoretical foundation of continuously variable hydrostatic-mechanical transmissions use in vehicles for repair oil and gas wells. Proposed and developed fundamental structural and kinematic schemes continuously variable hydrovolumetric mechanical transmission cars for repair of oil and gas wells. Compiled complex mathematical model car for repair of oil and gas wells in the vehicle rectilinear motion and process modes "rise - descent" cargo. Analysis of the results of modeling allows the transmission to recommend the use of continuously variable hydrovolumetric mechanical transmission offered in cars for repair of oil and gas wells as more effective.
Островерх, Олександр Олегович. "Теоретичне обґрунтування використання безступінчастих гідрооб'ємно-механічних трансмісій на автомобілях для ремонту нафтогазових свердловин." Thesis, НТУ "ХПІ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/22584.
Full textThe dissertation for obtaining a scientific degree of Candidate of Science (Technology) on the specialty 05.22.02 – automobiles and tractors. –National Technical University "Kharkiv Polytechnic Institute", Kharkiv, 2016. The dissertation is devoted to the theoretical foundation of continuously variable hydrostatic-mechanical transmissions use in vehicles for repair oil and gas wells. Proposed and developed fundamental structural and kinematic schemes continuously variable hydrovolumetric mechanical transmission cars for repair of oil and gas wells. Compiled complex mathematical model car for repair of oil and gas wells in the vehicle rectilinear motion and process modes "rise - descent" cargo. Analysis of the results of modeling allows the transmission to recommend the use of continuously variable hydrovolumetric mechanical transmission offered in cars for repair of oil and gas wells as more effective.
Бурлига, Михайло Борисович. "Розвиток методів розрахунку та вибір раціональних схем двопотокових безступінчастих гідрооб'ємно-механічних трансмісій колісних тракторів." Thesis, НТУ "ХПІ", 2017. http://repository.kpi.kharkov.ua/handle/KhPI-Press/35538.
Full textThesis for Scientific degree of candidate of technical sciences, specialty 05.22.02 – vehicles and tractors. National Technical University "Kharkiv Polytechnic Institute", Kharkiv, 2017. The work is devoted to solving the technical problem of development of calculation methods and choice of rational schemes of dual path hydraulic volume mechanical transmission (HVMT) wheeled tractors, which allows you to select the optimal scheme HVMT at the design stage. Actuality of work consists in the necessity of providing of competitiveness of Ukraine tractors. The analysis of work of the dual path HVMT tractors of foreign analogues is carried out. Refined mathematical model of hydrostatic axial-piston hydraulic machines as the main HVMT elements identity-based loss coefficients with the latest experimental data loss and coefficient of performance (COP). The algorithm and the computational procedure for the establishment of a oneto-one correspondence between the operating parameters and the efficiency of hydraulic drive system (HDS) losses in forward and reverse flow of power through the HDS for her work in the dual path tractor HVMT. Calculation-theoretical methodology and her programmatic realization is first worked out for determination of HDS parameters, dual path HVMT and basic technical and economic indexes of tractor-aggregate taking into account the modes of circulation of power, losses in HDS, HVMT and skidding of tractor for an analysis and prognostication of descriptions alternative tractor HVMT and scientific ground of the most rational transmission for a certain tractor. The problem of construction of universal descriptions of tractor is first set and decided with dual path HVMT. Original solution of task offers on visualization of kinematics, power and power parameters of dual path HVMT of the perspective Ukrainian tractors in all range of their operating modes as an important criterion for comparison of alternative schematics of HVMT. Universal descriptions of first in Ukraine and on post-soviet space of tractor of XTZ-21021 from stepless HVMT-1S development of NТU "KhPI" and propulsion MODULE of "XTZ" are built. Results numeral and natural experiments allow to draw conclusion, that the calculation-theoretical methodologies and constituents of them worked out in dissertation mathematical models are adequate and directed to on an increase efficiency and competitiveness of the Ukrainian tractors.
Бурлига, Михайло Борисович. "Розвиток методів розрахунку та вибір раціональних схем двопотокових безступінчастих гідрооб'ємно-механічних трансмісій колісних тракторів." Thesis, НТУ "ХПІ", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/35536.
Full textThesis for Scientific degree of candidate of technical sciences, specialty 05.22.02 – vehicles and tractors. National Technical University "Kharkiv Polytechnic Institute", Kharkiv, 2017. The work is devoted to solving the technical problem of development of calculation methods and choice of rational schemes of dual path hydraulic volume mechanical transmission (HVMT) wheeled tractors, which allows you to select the optimal scheme HVMT at the design stage. Actuality of work consists in the necessity of providing of competitiveness of Ukraine tractors. The analysis of work of the dual path HVMT tractors of foreign analogues is carried out. Refined mathematical model of hydrostatic axial-piston hydraulic machines as the main HVMT elements identity-based loss coefficients with the latest experimental data loss and coefficient of performance (COP). The algorithm and the computational procedure for the establishment of a oneto-one correspondence between the operating parameters and the efficiency of hydraulic drive system (HDS) losses in forward and reverse flow of power through the HDS for her work in the dual path tractor HVMT. Calculation-theoretical methodology and her programmatic realization is first worked out for determination of HDS parameters, dual path HVMT and basic technical and economic indexes of tractor-aggregate taking into account the modes of circulation of power, losses in HDS, HVMT and skidding of tractor for an analysis and prognostication of descriptions alternative tractor HVMT and scientific ground of the most rational transmission for a certain tractor. The problem of construction of universal descriptions of tractor is first set and decided with dual path HVMT. Original solution of task offers on visualization of kinematics, power and power parameters of dual path HVMT of the perspective Ukrainian tractors in all range of their operating modes as an important criterion for comparison of alternative schematics of HVMT. Universal descriptions of first in Ukraine and on post-soviet space of tractor of XTZ-21021 from stepless HVMT-1S development of NТU "KhPI" and propulsion MODULE of "XTZ" are built. Results numeral and natural experiments allow to draw conclusion, that the calculation-theoretical methodologies and constituents of them worked out in dissertation mathematical models are adequate and directed to on an increase efficiency and competitiveness of the Ukrainian tractors.