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Wyszukujesz frazę "wheel wear" wg kryterium: Temat


Tytuł:
A data-driven predictive model of the grinding wheel wear using the neural network approach
Autorzy:
Lezanski, P.
Powiązania:
https://bibliotekanauki.pl/articles/99954.pdf
Data publikacji:
2017
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
grinding wheel wear
remaining useful life
neural network
Opis:
Advanced manufacturing depends on the timely acquisition, distribution, and utilization of information from machines and processes. These activities can improve accuracy and reliability in predicting resource needs and allocation, maintenance scheduling, and remaining service life of equipment. Thus, to model the state of tool wear and next to predict its remaining useful life (RUL) significantly increases the sustainability of manufacturing processes. there are many approaches, methods and theories applied to predictive model building. the proposed paper investigates an artificial neural network (ANN) model to predict the wear propagation process of grinding wheel and to estimate the RUL of the wheel when the extrapolated data reaches a predefined final failure value. The model building framework is based on data collected during external cylindrical plunge grinding. Firstly, usefulness of selected features of the measured process variables to be symptoms of grinding wheel state is experimentally verified. Next, issues related to development of an effective MLP model and its use in prediction of the grinding wheel RUL is discussed.
Źródło:
Journal of Machine Engineering; 2017, 17, 4; 69-82
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effects of process parameters on spindle power consumption in abrasive machining of CoCr alloy
Autorzy:
Brazel, E.
Hanley, R.
O'Donell, G. E.
Powiązania:
https://bibliotekanauki.pl/articles/100023.pdf
Data publikacji:
2011
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
power monitoring
abrasive machining
grinding
taguchi
wheel wear
CBN
Opis:
The production environment requires seamless integration, efficiency and robustness of process monitoring solutions. This research investigates data acquisition on the machine tool through the monitoring of NC kernel data. This approach provides many advantages, particularly in an industrial setting where it may be impractical to install additional sensors for process monitoring. The process investigated is abrasive machining of Cobalt Chrome alloy. Cobalt Chrome alloys are extensively used in the biomedical industry as both femoral and tibial components of prosthetic joints. Abrasive machining or grinding is widely employed as the main method for material removal for these components. Understanding the influence of key variables in such a process is necessary before optimization can be achieved. Significant information can be obtained by utilizing power consumption during machining as a process metric. Power consumption of a spindle during an abrasive machining process of Cobalt Chrome alloy is monitored under various conditions through a machine-NC-based application. The effects of changes in feed rate, wheel speed, depth of cut and tool condition are investigated here through Taguchi experimental design. Experimental results are presented with significant machining variables identified.
Źródło:
Journal of Machine Engineering; 2011, 11, 4; 59-69
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New possibilities to reduce wheel and rail wear in the operation of metro wagons on curved track with small curve radii without considering propulsion and braking systems
Autorzy:
Matej, Jan
Orliński, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/24200816.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
critical speed
lateral dynamics
wheel wear
bogie steerability
curved track interaction
Opis:
This paper analyses the parameters relevant to the operation of underground cars in traffic on straight and curved tracks with small curve radii. Current knowledge of non-linear lateral dynamics of rail vehicles and the specialist computer programme Vi-Rail were used to build models and perform simulation calculations. A solution was proposed to enable passive control of wheelsets with very high guiding stiffnesses, without the need for systems to force the axles of the wheelsets to align radially in a curved track. This effect was achieved by varying the guidance stiffness in the horizontal plane of the frame of each bogie. The adopted course of action offers simplicity of solution, low manufacturing costs, high critical speed on straight track and extended service life of the metro wagons resulting from reduced mechanical wear of wheels and rails. A multi-criteria evaluation was carried out, confirming improved bogie controllability and reduced impact of the metro wagon wheelsets on the curved track. Comparisons were made of the design volumes for metro model wagons with bogies with symmetric and unsymmetric axle-guide stiffness arrangements of the wheelsets.
Źródło:
Eksploatacja i Niezawodność; 2023, 25, 1; art. no. 15
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reducing wheel wear of a motorised metro car on a curved track with a small curve radius
Autorzy:
Matej, Jan
Orliński, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/32222558.pdf
Data publikacji:
2023
Wydawca:
Sieć Badawcza Łukasiewicz - Poznański Instytut Technologiczny
Tematy:
motorised metro car
curved track
wheel wear
bogie steering
non-linear critical speed
Opis:
A structural solution was proposed to enable passive control of the wheelsets of a motorised metro car on curved track with a small curve radius. This effect was achieved by varying the stiffness of the guidance of the wheelsets in the horizontal plane of the frame of each bogie on which the wagon body rests. This ensured the required critical speed of the metro wagon when moving on straight track, and allowed for reduced mechanical wheel wear and better steering of the bogies when moving on curved track with a small radius of curvature. Parameters specific to the design of modern metro cars were taken into account. Current knowledge of non-linear lateral dynamics of rail vehicles and the specialist computer programme Vi-Rail were used to perform the calculations involving simulation models.
Źródło:
Rail Vehicles/Pojazdy Szynowe; 2023, 3-4; 25-32
0138-0370
2719-9630
Pojawia się w:
Rail Vehicles/Pojazdy Szynowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Grain Size and Feed Rate on Selected Aspects of Corundum Ceramic Grinding Using Spherical Diamond Heads
Autorzy:
Szajna, Artur
Bazan, Anna
Powiązania:
https://bibliotekanauki.pl/articles/2023780.pdf
Data publikacji:
2021
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
grinding
corundum ceramics
spherical diamond head
grinding wheel wear
szlifowanie
korund ceramiczny
głowica diamentowa sferyczna
zużycie ściernicy
Opis:
The article presents the results of experimental research on the grinding of corundum ceramics in the pre-sintered state, with spherical diamond heads. The aim of the experiment was to determine the effect of grain size and feed rate on selected aspects of the grinding process of corundum ceramics with the use of spherical diamond heads. In the experiment, grinding wheels with a ball diameter of 3 mm and different grain sizes were used; the grain numbers were D64, D91, D126 and D181. The tests were carried out on the Ultrasonic 20 Linear machining center at a constant rotational rate of the grinding wheel n = 38,000 rpm and a grinding depth of 30 µm. The feed rate was set on 3 values: 200, 400 and 600 mm / min. During the research, the process temperature was recorded with a thermal imaging camera. The topography of grinding wheels before and after the grinding process and the topography of the ground surface were also measured. The parameters Sa and Ŝz (Ŝz= Spk+Sk+Svk) were used to characterize the grinding heads. The conducted analyses showed the dependence of the parameters Sa and Ŝz of new grinding heads on the grain size described by the quadratic function (R^(2 )≥0.94). Statistically significant changes in the parameters Sa and Ŝz on the cutting surface of the grinding wheel, which occurred as a result of its wear, were observed. There was no significant relationship between the feed rate and the wear of grinding heads, probably due to the relatively small volume of the material removed. A positive correlation between the Sa and Ŝz parameters of the ground object and the grain size was observed. The research also showed an increase in the process temperature with an increase in the feed rate and an increase in the grain size.
Źródło:
Advances in Science and Technology. Research Journal; 2021, 15, 4; 149-159
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In-service analysis of tram wheel set life
Analiza eksploatacyjna trwałości zestawów kołowych tramwajów
Autorzy:
Młynarski, S.
Piec, P.
Powiązania:
https://bibliotekanauki.pl/articles/375260.pdf
Data publikacji:
2012
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
tramwaj
zużycie koła
zestaw kołowy
trwałość eksploatacyjna
tram
wear of wheel
wheel set
exploitation durability
Opis:
The paper presents some results of in-service tests on tram wheel set life. The measurements of wheel rim undercut and wear on the rolling diameter of tram wheel set wheels are a data base for calculating tram rolling wheel life in two aspects: wheel operation conditions and materials from which the wheels were made.
Praca zawiera wybrane wyniki eksploatacyjnych badań trwałości zestawów kołowych tramwaju. Wyniki pomiarów podcięcia obrzeża kół oraz zużycia na średnicy tocznej kół zestawów kołowych tramwaju stanowią, między innymi, bazę danych służącą do przeprowadzenia obliczeń trwałości koła tocznego tramwaju w dwóch aspektach: warunków pracy koła oraz materiałów, z których te koła wykonano.
Źródło:
Transport Problems; 2012, 7, 2; 103-110
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The characteristics of the selected types of wheel wear and their effect on the rail vehicle – track interaction
Autorzy:
Słowiński, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/32101680.pdf
Data publikacji:
2022-05-24
Wydawca:
Sieć Badawcza Łukasiewicz - Poznański Instytut Technologiczny
Tematy:
wear
rail vehicle wheel
polygonisation
wheel flat
shelling
Opis:
The aim of this paper is to present the selected types of rail wheel wear and their influence on vehicle-track interaction. The first part discusses the wheel-rail interface and presents the essential information about the wear of rail vehicle wheels. Differences in the nature of the wear of rail and tram wheels are pointed out. Then, characteristics of typical forms of wheel wear are presented, together with the description of the mechanisms of their occurrence and the existing technical measures leading to their reduction. In the last part of the text, the impact of the previously described forms of wheel wear on the vehicle-track interaction is discussed.
Źródło:
Rail Vehicles/Pojazdy Szynowe; 2022, 1-2; 3-9
0138-0370
2719-9630
Pojawia się w:
Rail Vehicles/Pojazdy Szynowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Justification of permissible wear parameters of locomotives crest wheel
Obosnovanie predelno-golustimykh parametrov iznosa grebnejj koles lokomotivov
Autorzy:
Sapronova, S.
Tkachenko, V.
Powiązania:
https://bibliotekanauki.pl/articles/792578.pdf
Data publikacji:
2013
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
railway
locomotive wheel
tire
wheel profile
justification
wear parameter
permissible value
economic performance
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2013, 13, 4
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tribological wear of wheel rims in rail vehicles in operating conditions
Zużycie tribologiczne wieńców kół tocznych pojazdów szynowych w warunkach eksploatacji
Autorzy:
Guzowski, S.
Michnej, M.
Zając, G.
Powiązania:
https://bibliotekanauki.pl/articles/190728.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
rail vehicles
wheel sets
wear
pojazdy szynowe
zestawy kołowe
zużycie
Opis:
Wheel sets as elements determine the reliability and safety in railway traffic demand ensuring high technological and quality standards at the stage of production and exploitation. Not satisfying these conditions may result in, among others, premature wear of wheels in the wheel sets, in turn a shortening between-repair running periods and increasing the exploitation costs of rail vehicles. The authors, based on carried out tests, analysed the influence of not satisfying proper parameters of heat treatment of wheel rims on tribological wear on their surface. This especially concerns abrasive wear of wheel rims and damages of the spalling type on the wheel thread surface in wheel sets.
Zestawy kołowe jako elementy decydujące o niezawodności i bezpieczeństwie prowadzenia ruchu kolejowego wymagają na etapie wytwarzania i eksploatacji zapewnienia wysokich standardów technicznych i jakościowych. Niedotrzymanie tych warunków skutkuje m.in. przyspieszonym zużyciem kół zestawów kołowych powodującym skrócenie przebiegów międzynaprawczych i zwiększenie kosztów użytkowania pojazdów szynowych. Autorzy na podstawie przeprowadzonych badań dokonali analizy wpływu niedotrzymania właściwych parametrów obróbki cieplnej wieńców kół na zużycie tribologiczne występujące na ich powierzchni. Szczególnie dotyczy to zużycia ściernego obrzeży kół wraz z uszkodzeniami typu spalling na powierzchni tocznej kół zestawów kołowych.
Źródło:
Tribologia; 2016, 268, 4; 91-99
0208-7774
Pojawia się w:
Tribologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Abrasive Wear Mechanisms of S235JR, S355J2, C45, AISI 304, and Hardox 500 Steels Tested Using Garnet, Corundum and Carborundum Abrasives
Autorzy:
Szala, Mirosław
Szafran, Michał
Matijošius, Jonas
Drozd, Kazimierz
Powiązania:
https://bibliotekanauki.pl/articles/2201922.pdf
Data publikacji:
2023
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
abrasion
wear resistance
dry sand-rubber wheel test
tribology
steel
wear mechanism
roughness analysis
failure analysis
Opis:
Wear resistance is one of the main indicators of the reliability of machine parts. The selection of wear-resistant material should consider the operational environment and specific types of abrasive material. The steel abrasive wear resistance depends not only on its hardness and microstructure but also on the abrasive material's properties, such as hardness and particle morphology. This work aimed to determine abrasion wear mechanisms of a set of steels, i.e., S235, S355, C45, AISI 304 and Hardox 500, abraded by different types of grit i.e. garnet, corundum and carborundum. The abrasion tests were conducted using T-07 tribometer (rubber wheel method). Wear traces were examined with a scanning electron microscope (SEM), and a contact profilometer. SEM analysis revealed that apart from Hardox 500, ploughing and microfatigue were the dominant wear mechanisms. Microcutting was the main wear mechanism for Hardox 500 tested with carborundum (SiC). The highest mass loss was usually obtained for carborundum. The lowest wear resistance in garnet and carborundum was obtained for the S235JR and S235J2 steels and Hardox 500 tested with corundum. The effect of steel microstructure on the wear mechanism has been confirmed. AISI 304 austenitic steel abraded by carborundum grit, presented outstanding roughness parameters: Ra, Rz, RSm, Rk, Rvk and Rpk than other steels tested with carborundum. Steel hardness affects the morphology of the wear trace reducing the Ra and Rz roughness parameters. The effect of abrasive hardness and grain morphology on abraded surfaces has been stated. Contrary to fine grains of the hardest carborundum, coarse garnet grains caused high roughness parameters (Rk, Rpk and Rvk) determined in wear trace.
Źródło:
Advances in Science and Technology. Research Journal; 2023, 17, 2; 147--160
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A theoretical evaluation of locomotive wheelsets tires wear rate
Тeoreticheskaja ocenka intensivnosti isnoza bandazhejj kolesnykh par lokomotivov
Autorzy:
Tsyganovskiy, I.
Powiązania:
https://bibliotekanauki.pl/articles/793231.pdf
Data publikacji:
2014
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
theoretical estimation
mathematical model
algorithm
locomotive
wheel
tire
railway
intensity wear
contact model
wheel-rail contact model
operational condition
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2014, 14, 1
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computer aided simulation analysis for wear investigation of railway wheel running surface
Autorzy:
Šťastniak, Pavol
Smetanka, Lukáš
Drozdziel, Pawel
Powiązania:
https://bibliotekanauki.pl/articles/329012.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:
wear research
railway
wheel heads
computer simulation
badanie zużycia
kolej
koło
symulacja komputerowa
Opis:
In railway applications wear prediction in the wheel-rail interface is a fundamental matter in order to study problems such as wheel lifespan and the evolution of vehicle dynamic characteristic with time. The change of the running surface of the railway wheels head has not only a great influence on the dynamic properties of the vehicle, but also a significant economical, safety and ecological impact in the process of the rail transport. One of the ways to predict these undesired situations are computer aided simulation analyzes. In this paper are presented results of wheel profile wear by Archard wear law, when the computational model of railway vehicle was driving in track by constant velocity. The vehicle was traveling along track where the rail profile was defined by standard (UIC 60 profile) with cant of 1:40, or the track profile really measured on the track, the profile S 91700_16 with the cant of 1:20. Simulations were realized by SIMPACK software.
Źródło:
Diagnostyka; 2019, 20, 3; 63-68
1641-6414
2449-5220
Pojawia się w:
Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improvement of working conditions of the freight locomotive running gear
Улучшение условий работы ходовой части грузового локомотива
Autorzy:
Tumanishvili, G.
Natriashvili, T.
Goletiani, G.
Zviadauri, V.
Nadiradze, T.
Powiązania:
https://bibliotekanauki.pl/articles/374665.pdf
Data publikacji:
2016
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
freight locomotive
wheel
rail
friction
wear
derailment
lokomotywa towarowa
koło
kolej
tarcie
stabilność
Opis:
To improve the working conditions of the electric locomotive running part, it is necessary to decrease unsprung masses, lateral loads and the angle of attack and provide the third body with proper tribotechnical properties. A new scheme of the freight electric locomotive running gear is elaborated in the work, which ensures a decrease of unsprung masses, relative sliding of a wheel on the rail and an angle of attack that provides resistance to the destruction of the third body in the contact zone.
Для улучшения условий работы ходовой части электровоза зону контакта колеса и рельса необходимо уменьшить необрессоренные массы, поперечные силы и угол атаки и обеспечить наличие третьего тела с необходимыми триботехническими свойствами. В работе приведена новая схема ходовой части грузового электровоза, которая позволяет уменьшить относительную скорость скольжения колеса по рельсу и угол атаки, что повышает устойчивость третьего тела к разрушению.
Źródło:
Transport Problems; 2016, 11, 3; 103-109
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Possibilities of increasing the durability of chain wheels of armoured-face conveyors
Autorzy:
Wieczorek, A.
Powiązania:
https://bibliotekanauki.pl/articles/374811.pdf
Data publikacji:
2017
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
tribology
wear
chain wheel
armoured face conveyor
tribologia
zużycie
koło łańcuchowe
zbrojony przenośnik czołowy
Opis:
The main objective of the study was to demonstrate the possibility of replacing the materials of domestic and foreign production currently used for chain drums with alternative materials. ADIs were selected as materials that may replace the cast steels used so far. L35GSM cast steel, commonly used for mining chain wheels and austempered ductile iron, conforming with the requirements of EN-GJS-1400-1 quality grade were subjected to wear tests. On the basis of the experimental studies it has been observed that for almost all the combinations of destructive factors considered, the ADI in question was characterised by a wear resistance better than that in the case of the L35GSM cast steel used so far. In addition, it has been found that the ADI has favourable features predestining it for use in the production of chain drums for armoured-face conveyors.
Źródło:
Transport Problems; 2017, 12, 3; 71-82
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of wear mechanism of tread during operation of railway wheels
Badanie mechanizmu zużycia powierzchni tocznej podczas eksploatacji kół kolejowych
Autorzy:
Gubenko, S.
Proidak, Y.
Powiązania:
https://bibliotekanauki.pl/articles/374924.pdf
Data publikacji:
2012
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
zużycie
koło kolejowe
odkształcenie plastyczne
wear
railway wheel
plastic deformation
formation of white layer
Opis:
Causes of wear particles formation on railway wheels tread were investigated. Structural factors connecting with plastic deformation, formation of "white layer", and also with non-metallic inclusions and corrosive products of wheel steel, defining wear of railway wheels tread during operation were fixed.
Źródło:
Transport Problems; 2012, 7, 3; 119-125
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł

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