Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "gearing" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Preliminary studies of planetary gear demonstrator made of ABS polymer
Autorzy:
Kozik, B.
Powiązania:
https://bibliotekanauki.pl/articles/245102.pdf
Data publikacji:
2013
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
stand tests
gearing
planetary gear
Opis:
The paper presents preliminary stand tests of a demonstrator of planetary gearing. The gearing used in the research has been made of ABS polymer with good strength parameters. Parts of the gearing have been created by means of FDM (Fused Deposition Modeling). The input data come from 3D CAD solid model which geometry is determined by a file of any system equipped with the ability to save in STL format. This model is described by a grid of triangles and divided into levels (layers). Their thickness determines the accuracy of representation of a detail curvature. The thickness of the layers is also limited by the accuracy of the process and the equipment. The research was conducted on a test stand designed in an open system powered by a three-phase electric motor. The control is provided by a single-phase inverter with three outputs, which ensures full speed control. The load of the stand is realized by an electromagnetic powder brake. The possibility to control working time lets you precisely define the time intervals of various stages of the research. Using timer makes it possible to observe the current consumption of the gearing and helps to establish the research process. The research at this stand allows for obtaining stable working parameters and thus for obtaining accurate, not distorted results of the demonstrator’s operation. The purpose of the research is verification of gear endurance calculations and verification of the design in conditions similar to real ones.
Źródło:
Journal of KONES; 2013, 20, 2; 207-212
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Disc tool profiling for air compressor screws with complex characteristic curves
Autorzy:
Nguyen, Tuan-Linh
Hoang, Long
Powiązania:
https://bibliotekanauki.pl/articles/1833775.pdf
Data publikacji:
2021
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
disk tool
meshing condition
undercutting
envelope
gearing
Opis:
One of the best practical methods to machine the air compressor screw pairs is milling or grinding by disc tools. The mathematics involved in disc tool profiling is quite complex and requires representing the machined surface by mathematical equations without any singular points and undercutting. From a technical perspective, this article proposes the disc tool profiling integrated solution for machining complex profile screws from their reverse engineering data, which contains crucial issues such as machining deviation evaluation due to undercutting, appropriate tool position setting. The disc tool surface designed by the proposed method is highly accurate, leading the RMS error of the machined surface is less than 0.0201 mm. A difference of the angle, formed by the disc tool axis and the workpiece axis, less than 0.16°, is acceptable in air compressor technology, which leads to a machined surface RMS deviation of less than 0.0186 mm.
Źródło:
Journal of Machine Engineering; 2021, 21, 3; 101--109
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of hydrodynamic power losses in a gearing
Autorzy:
Stavytskyi, Valerii
Bashta, Oleksandr
Nosko, Pavlo
Tsybrii, Yurii
Powiązania:
https://bibliotekanauki.pl/articles/2106187.pdf
Data publikacji:
2022
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
hydrodynamic power losses
gearing
tooth space
high speed gears
Coriolis force
mathematical model
Opis:
Despite the relatively numerous experimental studies, there are few published works on the topic of development of mathemati-cal models that describe the hydrodynamic processes in gears. There is no generic analytical model that integrates all types of losses. The purpose of this work is to develop a modern generalised methodology for calculating the hydrodynamic power losses of high-speed gears. For each gear, partially or fully immersed into an oil bath, the power spent to overcome the hydromechanical resistance can be represented as the sum of the following: the Coriolis force moment arising from the radial movement of the oil in the tooth spaces of the rotating gear, the viscous friction forces moment on the periphery of the gear addendums in the oil bath and the viscous friction forces moment at the face of the gear in the oil bath. The hydrodynamic power losses due to the Coriolis force action, viscosity friction losses at the periphery of the gear and the viscosity friction at the face of the gear (both turbulent and laminar modes) were observed separately. From the mathematical simulation of the rotation processes when the gear is immersed into the oil bath, an analytical dependence was obtained. It allows predicting the influence of the geometrical parameters of the gearing on the hydrodynamic power losses. Analysis of the calculation results of the power losses due to the action of hydraulic resistance forces and results from experimental studies is provided for several gears with different hydromechanical parameters. The proposed method of calculating power loss due to hydromechanical resistance of the oil bath to the rotation of the gear gave results that were close to the experimental data. Acceptable coincidence of theoretical and experimental results allows recommending the received analytical dependencies for practical calculations of high-speed gears.
Źródło:
Acta Mechanica et Automatica; 2022, 16, 1; 1--7
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characteristic of process flow in modular didactic production system for gear trains
Autorzy:
Jaskólski, Piotr
Nadolny, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/95209.pdf
Data publikacji:
2019
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
modular production system
didactic production system
production system
gearing
rapid prototyping
modułowy system produkcyjny
system produkcyjny
przekładnie zębate
szybkie prototypowanie
Opis:
The aim of the work was to create a technical and organizational design for a modular, didactic system for the production of single-stage gearing. The project presented a project of a production system equipped with miniaturized devices, which are commonly used in industry. Despite the reduced scale, the modules have full functionality and reflect the real world systems. Modular construction of the designed system allows for free modeling of production processes and creates great opportunities for future activities of system expansion and its use. Additionally, the system design assumes the possibility of carrying out scientific and research works in the scope of designing production systems with a high level of automation.
Źródło:
Journal of Mechanical and Energy Engineering; 2019, 3, 2; 115-120
2544-0780
2544-1671
Pojawia się w:
Journal of Mechanical and Energy Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies