Кафедра "Підйомно-транспортні машини і обладнання"

Постійне посилання колекціїhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/3845

Офіційний сайт кафедри http://web.kpi.kharkov.ua/ltm

Кафедра "Підйомно-транспортні машини і обладнання" заснована у 1929 році. Першим її очільником став професор Тамарін Д. Н.

Курс "Теорія і будова підйомних машин" в Харківському практичному технологічному інституті викладався ще з 1888 року Вадимом Ерастовичем Тіром.

Кафедра входить до складу Навчально-наукового інституту механічної інженерії і транспорту Національного технічного університету "Харківський політехнічний інститут".

У складі науково-педагогічного колективу кафедри працюють 7 кандидатів технічних наук, з них 5 мають звання доцента.

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2014 - 20193

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Автор: search.filters.author.Okun, AntonМістить файли: Так

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  • Ескіз
    Документ
    Crane wheels production quality control
    (University of Miskolc, 2014) Grigorov, Otto; Gubskiy, Serhy; Okun, Anton
    Quality control of crane wheels is an important part for support of crane mechanisms permanent operation. Normal functioning of logistics systems requires preventing of crane downtimes and delays. The research results of the impact of the crane wheels (710 mm diameter, 65Г steel) surface hardness on coercivity indicators are presented in this paper. Obtained research results of dependence between the coercivity indicators and the crane wheels rolling surface hardness for their use in practice are described. The influence of the crane wheels surface hardness on the coercivity indicators is researched. Research has shown the dependence of the coercive force from the regulatory crane wheels rolling surface hardness, which is received after a quenching. This research allows you to use obtained results for a quality control of the crane wheels quenching in the production process, a rapid control of the crane wheels at the expert examination.
  • Ескіз
    Документ
    Integrated Approach to Determine Operational Integrity of Crane Metal Structure
    (Budapest University of Technology and Economics, 2019) Gubskyi, Sergii; Yepifanov, Vitalii; Chukhlib, Vitalij; Basova, Yevheniia; Okun, Anton; Ivanova, Maryna; Panamariova, Olga
    One of the elements limiting the crane life cycle and affecting the safety of its operation is a metal structure. Currently, there is no single scientifically-based approach to assess the operational integrity of crane metal structures. The paper deals with issues related to the development of an integrated approach to determine the operational integrity of crane metal structures, based on a combination of numerical methods of calculation (the finite element method and boundary states calculation) and magnetic coercive non-destructive control. The research of the influence of the metal chemical composition, its microstructure and the controlled elements thickness on coercive force values have been carried out. In order to take into account these parameters, it is suggested to use certificated experimental samples with variable cross sections. The practical value of the research is to apply the integrated approach that will eliminate the disadvantages of a separate method, complement these methods, increase the objectivity and accuracy of determining the operational integrity of crane metal structures.
  • Ескіз
    Документ
    An experimental study of the efficiency of optimal control for lifting machines
    (University politehnica of Bucharest, 2019) Grigorov, Otto; Strizhak, Vsevolod; Strizhak, Marjana; Okun, Anton; Anishchenko, Galina
    The article is devoted to the synthesis of optimal speed performance control, in which the Pontryagin maximum principle and the phase-plane method are used to search for switching points of the relay control function. A crane trolley model and computer control system, able to implement the automatic movement of the trolley according to the optimal laws, were developed. The conducted experimental study allowed us to establish that the operating cycle of the traveling mechanism can be reduced by 1.5-3.1 times using optimal speed performance control.