Temat: Rate - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Blast loading on aluminum foam microstructure
Autorzy:: Miedzińska, D.
Panowicz, R.
Powiązania:: https://bibliotekanauki.pl/articles/244041.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: microstructure
aluminium foam
strain rate effect
Opis:: One of the possible options as a material for protective layers is aluminum foams which become also very popular due to their lightweight and excellent plastic energy absorbing properties. Such characteristics have been appreciated by the automotive industry with continued research to further understand foam properties. Compressed foaming materials exhibit extensive plastic response, while the initial elastic region is limited in tension by a tensile brittle-failure stress. Aluminum foams have become also an attractive material as blast protective layers due to their desirable compressive properties. With different material engineering techniques (as, for example double-layer foam cladding) they can be customized to achieve the most desirable properties. Energy absorption capacity of foams microstructures under blast load was analytically confirmed based on a rigid-perfectly plastic-locking foam model Initial research indicates that energy absorbed by the cladding is much larger than that under quasi-static conditions due to strain rate effect. In this paper a numerical model of a closed cell aluminum foam idealistic microstructure was presented. The quasi static compression tests were carried out with the use of LS Dyna computer code. Then the sample was numerically loaded with the blast wavefrom detonation of explosives and its behavior was analyzed. The results ofboth analyses were compared.
Źródło:: Journal of KONES; 2010, 17, 3; 287-292
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The influence of incondensible gases on the refrigeration capacity of the reliquefaction plant during ethylene carriage by sea
Autorzy:: Nanowski, D.
Powiązania:: https://bibliotekanauki.pl/articles/246338.pdf
Data publikacji:: 2016
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: ethylene carrier
cargo cooling rate
reliquefaction plant
Opis:: This paper presents a performance of the reliquefaction cascade plant during ethylene carriage by sea. Parameters of this plant are discussed because of dramatic low cooling rate of the cargo. Ability to decrease ethylene temperature from approx. minus 96°C to minus 103°C on board the ship is essential. Modern ethylene carriers are able to keep cooling rate about 2K per day, on the other hand old ones do it with rate approx. 0,2 K per day and require weeks to achieve proper temperature of ethylene for discharging. Of course, economic issue of such journey is not very satisfying but many factors influence on this. In this paper almost new one – nine months – old ship is considered, with capacity 21 000m3. Main reason of problem is analysed, including heat ingress through the cargo tanks insulation. Gassing-up of the ship is explained and influence of presence incondensable gases in the cargo tanks described. Operation of the reliquefaction plant is shown, especially with the vent valve of LPG condenser. Analysis of pressures in the cargo tanks is carried out – on board the ship and with help of ProSimPlus – thermodynamic simulator. Conclusions contain discussion of the reliquefaction plant problems and remarks what should be improved on board the ethylene carrier to avoid such problems.
Źródło:: Journal of KONES; 2016, 23, 3; 359-364
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The influence of injection timing on the combustion characteristics for the heterogeneous combustion field using impinging injection
Autorzy:: Kawakami, T.
Powiązania:: https://bibliotekanauki.pl/articles/244824.pdf
Data publikacji:: 2018
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: impinging injection
split injection
heat release rate
Opis:: It is very important to achieve the low particulate and low emissions under high power operation conditions in practical industrial engine and turbine combustion. Several techniques for reducing the emissions have been proposed and a large amount of experimental data has been published. It is well known that the combustion field in practical industrial diesel engine are strongly influenced by the behaviour of injection, distribution of droplets and the premixed ratio of the combustion chamber. As the first step of this study, experiments have been carried out to examine the combustion characteristics of heterogeneous combustion field by using impinging injection and Split injection in a closed chamber. The combustion chamber is equipped with pintle type injection nozzles on each of the opposite walls along the length of the bomb. In this study, we call it “impinging injection” when the injection is performed at same time by two nozzles facing each other and “split injection” when the impinging injection is performed at two different timing. The main conclusions are as follows: 1) the most suitable conditions of injection timing exists for improving the maximum burning pressure and total burning time by using impinging injection; 2) the flame speed can be possible to control by using impinging injection timing from the ignition; 3) the heat release rate for Split injection is larger than that of standard impinging injection.
Źródło:: Journal of KONES; 2018, 25, 3; 283-288
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Knock and combustion rate interaction in a hydrogen fuelled combustion engine
Autorzy:: Szwaja, S.
Powiązania:: https://bibliotekanauki.pl/articles/245975.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: combustion knock
heat release rate
hydrogen
engine
Opis:: The paper describes correlation between combustion knock intensity and combustion rate calculated as the heat release rate from combustion pressure traces of a hydrogen fuelled spark ignited engine. Unlike a gasoline spark ignited (SI) engine, the hydrogen fuelled engine can easily generate knock during combustion at working conditions similar to a gasoline engine. However, the hydrogen knock does not necessarily come from hydrogen auto-ignition at the end phase of spark-controlled combustion process as it is typical at the gasoline fuelled engine. The phenomenon of hydrogen knock significantly differs from the gasoline knock due to different combustion mechanisms and different fuel thermo-chemical properties. The knock can be generated during hydrogen combustion itself as result of combustion instabilities. Intensity of this knock, expressed here by intensity of combustion pressure fluctuations, is several times lower in comparison with the combustion knock by fuel self-ignition process. This "light knock" is a matter of this paper. The tests of hydrogen combustion in the IC engine has been conducted at air to hydrogen stoichiometric ratio at various compression ratios with spark timing sweep from -10 to 4 crank angle degrees referring to top dead centre of the engine piston. Obtained results show, that there is a positive correlation between the knock intensity and the combustion rate. This correlation is particularly observed at tests taken on the engine with compression ratio of 10. The conclusions should provide good premises for combustion knock modelling and its prediction.
Źródło:: Journal of KONES; 2011, 18, 3; 431-438
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The operation limitation of the two-stage reliquefaction cycle employed on board the ethylene carrier
Autorzy:: Nanowski, D.
Powiązania:: https://bibliotekanauki.pl/articles/242707.pdf
Data publikacji:: 2016
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: ethylene carrier
cargo-cooling rate
reliquefaction plant
Opis:: Ethylene, propane, commercial propane or HD-5 is cargoes very often carried by sea. In order to reduce the time of loading and later cooling down to required parameters of temperature and pressure in the cargo tanks two-stage reliquefaction cycle is used. For above-mentioned cargoes, two-stage cycle with liquid subcooling and interstage cooler is one of the most often utilized. In this paper operation of this cycle is discussed, based on parameters of the reciprocating cargo compressor and its cycle used on board the one of the biggest – 21 500 m3 – ethylene carrier in the world. It is explained how some vapour mixtures decrease cooling rate during reliquefaction of the cargo and some parameters of pressure and temperature of these mixtures are calculated with help of ProSimPlus – thermodynamic simulator. In this way, changes of the mixtures composition across reliquefaction plant are discussed. Increased pressure of the cargoes condensing as a way of solving of explained problem is analysed. Three stage – cycle of reliquefaction plant used for pure propane or ethylene is shown and some of its disadvantages are explained. Based on this discussion, three-stage cycle with liquid injection is proposed to fulfil operation requirements of the cargoes and improve their loading and cooling processes on board the ethylene carrier. Analysis of refrigeration capacity for both cycles is carried out.
Źródło:: Journal of KONES; 2016, 23, 4; 359-365
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Experimental investigations of various modes of charging on HCCI engine
Autorzy:: Prasad, A. Renuka
Bhandari, Rakesh
Jagadish, Donepudi
Powiązania:: https://bibliotekanauki.pl/articles/245191.pdf
Data publikacji:: 2019
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: HCCI technology
homogeneous mixture
thermal efficiency
combustion rate
emissions
Opis:: Homogeneous Charged Compression Ignition technology is most favourable or suitable for Internal Combustion engines for reducing the exhaust emissions and enhances the Thermal efficiency, improve the fuel consumption, and increase the rate of combustion. This article represents the various charging methods on HCCI technology engine; it improves the engine performance and determines the emission characteristics of HCCI technology engine. The homogeneous mixture prepared with different methods. In –cylinder internal homogeneous mixture preparation method applied in this present work. It reduces the exhaust emissions released from the combustion chamber. However, oxides of nitrogen and soot emissions are significantly reduce, because combustion starts at lower temperatures and various points in combustion chamber. The HCCI technology generates small amount of exhaust emissions and it improves the performance of the engine. In addition, performance and released emissions depends on the quality and quantity of homogeneous mixture.
Źródło:: Journal of KONES; 2019, 26, 1; 119-126
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Polypropylene tensile test under dynamic loading
Autorzy:: Khlif, M.
Masmoudi, N.
Bradai, Ch.
Powiązania:: https://bibliotekanauki.pl/articles/245878.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: dynamic tension
polypropylene
high strain rate
hopkinson bar
sensing block
Opis:: In this paper, a testing method is developed to determine the dynamic stress–strain responses of the polypropylene (PP) under high strain rate uniaxial tension conditions. The main objective of this study is to determine the dynamical behaviour of PP materials under transitory loading. To this effect, an experimental machine using a mixed technique of Hopkinson tension bar and a sensing block system is developed in order to study the dynamic tensile stress–strain behaviour of the low-strength and low mechanical impedance specimen. A pendulum pulse technique is employed in dynamic tension experiments to ensure that valid experimental conditions are satisfied. Results show that, compared with quasi-static behaviour, dynamic tension causes smaller failure strains. Among other, the experimental set-up, mechanical characteristic, dynamic tensile specimen, quasi-static tensile test: stress–strain curve for 0.8 s-1 strain rate, the incident and the transmitted waves recorded by the stain gauges located on the bar and the sensing block under a dynamic tensile test, the axial strain on the specimen versus time under a dynamic tensile test, the axial stress on the specimen versus time under a dynamic tensile test, dynamic tensile test: stress-strain curves of the PPC7712 polymer for various strain rates, the specimens after rupture quasi-static test and dynamic test are presented in the paper.
Źródło:: Journal of KONES; 2014, 21, 1; 131-138
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Influence of pressure on dynamic viscosity of oil
Autorzy:: Czaban, A.
Frycz, M.
Powiązania:: https://bibliotekanauki.pl/articles/242263.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: dynamic viscosity
engine oil
pressure dependence
temperature dependence
shear rate
Opis:: The viscosity of lubricant is physical quantity, which has major impact on slide bearings and micro-bearings functioning parameters. Applying computer simulations as a tool to study the hydrodynamic lubrication phenomenon, researcher should create a computational model as close as possible to the real object, therefore the knowledge about a viscosity dependence on temperature and shear rate of bearing lubricating oil is essential in simulations of slide bearings hydrodynamic lubrication. This paper present research, which show, that also an influence of pressure on oil dynamic viscosity should be taken into consideration. The aim of this work is to determine the influence of pressure on the dynamic viscosity of lubricating oil. In this research the selected new and used engine oils were investigated. The dynamic viscosity of oil was measured at different pressures and temperatures in the function of shear rate. In this work the engine oils of passenger vehicles were investigated. The viscosity measurements for new and used lubricating oils were made with the Thermo Scientific Haake Mars III rheometer. The received information will be used in the simulations of hydrodynamic lubrication of slide bearings and microbearings. Fitting viscosity curves, described by a viscosity model adopted in simulations, to the experimental data, obtained for motor oils, will allow to find the values of coefficients of that model. The determined coefficients will be set in the relationship defined by the adopted viscosity model, implemented in the used for simulations CFD software. Collected data may also be useful for designing bearings and sliding friction pairs.
Źródło:: Journal of KONES; 2013, 20, 2; 49-54
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Measurements of lapping plate temperature
Autorzy:: Molenda, J
Charchalis, A.
Powiązania:: https://bibliotekanauki.pl/articles/243508.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: flat lapping
lapping wheel temperature
material removal rate
surface roughness
Opis:: Lapping process is commonly used for ultra-precision machining of various materials. An essential role during lapping plays flatness of the wheel-working surface because workpiece surface takes mirror image of it. Due to its applications requiring extreme size accuracy, straightness and concentricity, it is very important that working surface remains flat in the course of machining. Getting out of flatness can be caused by uneven wear or heating. To prevent nonuniform wear of lapping plate surface, conditioning rings should be suited appropriate. Lapping machines producers and researchers make recommendations about proper rings position during machining. To provide constant temperature of the wheel, cooling systems are applied in modern machines, but not in all of them. Therefore, wheel temperature problem is significant one, and it should be known. This paper presents results of authors work on choosing proper measurement method of lapping plate temperature. During lapping process wheel is rotating. Maximum velocity value for ABRALAP 380 lapping machine is 65 rev/min. Mainly for this reason, contactless infrared method was selected. Because getting an accurate temperature of an object using this method is difficult, during experiments temperature rise not exact value were analysed. There were also presented results of experiments which goal was to find lap plate emissivity.
Źródło:: Journal of KONES; 2014, 21, 3; 245-250
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: The comparison of theoretical to practical cargo loading rate of butane - analysis of LPG carrier reliquefaction plant
Autorzy:: Nanowski, D.
Powiązania:: https://bibliotekanauki.pl/articles/241629.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: LPG carrier
cargo loading rate
CC4 – cargo
Butane
reliquefaction plant
Opis:: This paper presents a performance of reliquefaction plant analysis in order to assess possible cargo loading rate for Butane (C4H10). The highest cargo loading rate is essential in use of LPG carriers because of economical point of view. Loading and discharging cargo time at ports substantially influences on a financial effect of the ship owner. Because of different cargo grades, which number is continuously increasing, crucial is to know real efficiency of gas plan, before signing some contract with customer. On board these types of ships the highest efficiency of reliquefaction plant is crucial. After short description of fully refrigerated gas carrier, theoretical data of analysed ship, taken from ship documentation is shown. Taking into account this data, expected cargo compressors parameters and cargo loading rate are discussed, explained and assumed. In next step, real ambient Butane loading process carried out on board LPG carrier is described. All essential values and reliquefaction plant readings, taken in loading port are presented. The comparison of theoretical result based on available documentation to practical effects obtained in the port is performed. Analysis, mainly taking into account gas plan, answers if it operated with the highest possible efficiency and met cargo loading parameters expected according to ship manuals. Conclusions are discussed.
Źródło:: Journal of KONES; 2013, 20, 1; 227-231
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Steel C45 elements lapping
Autorzy:: Molenda, J.
Charchalis, A.
Powiązania:: https://bibliotekanauki.pl/articles/241819.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: flat lapping
steel C45 lapping
material removal rate
surface roughness
Opis:: Lapping is a process by which material is precisely removed from a workpiece to produce a desired dimension, surface finish or shape. It also removes subsurface damage caused by sawing or grinding. According to the classification surface to be generated, type of surface, kinematics of the cutting process, and tool shape (profile), many process variants can be distinguished. Among them face lapping are the most widespread lapping processes. They are used to produce a smooth, flat, unpolished surface. The process of lapping materials has been applied to a wide range of materials and applications, ranging from metals, glasses, optics, semiconductors and ceramics. Workpiece material properties and structure determine kind of material removal. Material removal by cutting, microfusion processes and material removal by microdeformation or by the induction of microcracks are to be underline. C45 is a medium carbon steel used when greater strength and hardness is desired than in the "rolled" condition, especially in mechanical engineering and automotive components. To minimize wear in high-speed applications requires extreme size accuracy, straightness and concentricity. To meet those high demands turning, grinding, lapping and polishing processes are used. This work presents results of steel C45 elements lapping. The experiments were conducted during flat lapping with use of ABRALAP 380 lapping machine. The lapping machine executory system consists of three conditioning rings. The process results were surface roughness Ra and material removal rate.
Źródło:: Journal of KONES; 2014, 21, 1; 169-174
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Inverse aspects of the three-way catalytic converter operation in the spark ignition engine
Autorzy:: Żmudka, Z.
Postrzednik, S.
Powiązania:: https://bibliotekanauki.pl/articles/242021.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: catalytic converter
conversion rate
flow resistance
local resistance number
friction number
Opis:: There are two sides of the catalyst operation: favourable and adverse. The positive side can be expressed by a conversion rate of harmful substances which is the principal parameter of catalyst work in respect of ecology. However, resistance of exhaust gas flow through the catalytic converter is also an essential problem. This is just the negative, adverse side of the converter operation. The catalytic converter can be treated as a local or linear resistance element of exhaust system. The first model, in which flow resistance generated by a catalyst is treated as local resistance, is more simplified. It is especially useful in case, when detailed constructional data of converter are unknown and the analysis of flow resistances in exhaust system is necessary. The basic measured quantity of flow resistance is pressure drop of exhaust gas within the catalyst. Next, on the basis of taken measurements also resistance number for the tested catalyst is calculated and analysed. Resistance number of the converter is calculated using Darcy model. In the second case, exhaust gas flow resistance through catalyst is treated as linear resistance with energy dissipation (linear frictional resistance) distributed linearly along way of exhaust gas flow. Friction number for the tested converter is calculated and analysed. The problem has been illustrated by the results of experimental researches of the three-way catalytic converter installed in the exhaust system of the spark ignition engine.
Źródło:: Journal of KONES; 2011, 18, 2; 509-516
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Thermodynamic analysis of combustion events in the natural gas fuelled SI engine with VVT
Autorzy:: Szwaja, M.
Mazuro, P.
Szwaja, S.
Powiązania:: https://bibliotekanauki.pl/articles/242837.pdf
Data publikacji:: 2018
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: internal combustion engine
variable valve timing
heat release rate
IMEP
combustion phases
Opis:: The main aim of the research was to investigate influence of overlap of the natural gas fuelled spark ignited engine on the following parameters: Indicated Mean Effective Pressure (IMEP), heat rate release including combustion phases (ignition lag, main combustion phase). The content of the study includes results from processing in-cylinder pressure measurements, heat release rate analysis, combustion phases, and finally the conclusions. The tests were carried out on the test bed including the single cylinder research engine with a displacement volume of 550 cm3. The engine was equipped with independent cam phasors for both intake and exhaust valves, but for this investigation, the exhaust valve timing was fixed (the exhaust cam centre line was fixed at -95 crank angle (CA) deg before Top Dead Centre) and intake valve timing was changed (the intake cam centre line was varied from 90 to 150 CA deg after Top Dead Centre). The overlap was changed in the range from 85 to 25 CA deg. 8 tests series were performed, each singular series consisted of 300 consecutive engine combustion cycles. As observed, by varying the valve overlap it contributes to significant change in the peak combustion pressure, peak of heat release rate, and combustion phases. Summing up, variable valve timing affects compression and expansion strokes by changing polytropic indexes due to various amounts of exhaust residuals trapped in the cylinder. It affects not only engine volumetric efficiency but also the heat release rate and IMEP, so it does engine performance. Thus, variable valve timing can be considered as valuable tool that can be applied to the natural gas fuelled internal combustion engine.
Źródło:: Journal of KONES; 2018, 25, 4; 421-427
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Influence of the notch for mechanical properties of 7020 aluminium alloy jointed by FSW
Autorzy:: Dudzik, K.
Czechowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/247552.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: aluminium alloys
friction stir welding (FSW)
mechanical properties
slow-strain-rate-testing
Opis:: The article presents the results of the mechanical properties of aluminum alloy AW 7020 [AlZn5Mgl] welded by friction s tir welding FSW. Friction Stir Welding (FSW) - a new technology can be successfully used for butt welding of different types of aluminum alloy sheets. In the article the parameters for friction stir welding of sheets made of AlZn5Mgl [7020] alloy were presented. Analysis of bonds showed a proper structural construction of the FSW welded 7020 aluminum alloy. The test was examined via the slow-strain-rate-testing (SSRT) according to ENISO 7539-7. The following parameters were measured: time-to-failure - T [min], obtained max. load - F [N]; strain energy (the diagram surface under the stress-elongation curve) - E [MJ/m3]; relative elongation of the specimen - A10 [%]; max. tensile stress - R [MPa] and contraction - Z [%]. The tests were carried out on cylindrical notch-free specimens and on specimens with "U"- notch in the air. Despite the use of "U" - notch cut in the joint, the specimens cracked in the native material. On the basis of test results were high strength properties of aluminum alloy 7020joints welded by FSW. Original values are received results of the mechanical properties of new method friction stir welded AW- 7020 [AlZn5Mgl] alloy.
Źródło:: Journal of KONES; 2010, 17, 4; 131-135
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Wear processes of hydraulic plunger and barrel assemblies connected with the time of their work
Autorzy:: Ułanowicz, L.
Powiązania:: https://bibliotekanauki.pl/articles/246273.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: fluid power transmission
pump delivery
volume flow rate
hydraulic precision pair
avionic technology
Opis:: The article discusses the wear processes of hydraulic plunger assemblies connected with the time of their work and the impact exerted by these processes on the value of parameters of a hydraulic plunger pump. It describes working conditions and loading of a hydraulic plunger assembly. The paper presents also the results of empirical analyses of the wear process of the connection of the plunger base with the working surface of the swivel disk, which is related to time and conditions of its work. It discusses the impact of the loading value and sliding speed on the character and intensity of the wear of the connection between the plunger base and the working surface of a swivel disk. Furthermore, it presents a general characteristic and mechanism responsible for the wear of the hydraulic plunger assembly through oxidation. The article also analyses the impact of the hardness of materials used for producing the hydraulic plunger assembly on the intensity of its wear. Another issue is the dependence of the coefficient of friction in the hydraulic plunger assembly on the contact pressure at different sliding speeds. Finally, the paper discusses the impact of wearing of the cooperating plunger base and the working surface of the swivel disk on the initial parameters of the hydraulic pump at a given working pressure and its volumetric efficiency.
Źródło:: Journal of KONES; 2014, 21, 4; 515-524
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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