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Wyszukujesz frazę "semi-trailer" wg kryterium: Temat


Wyświetlanie 1-12 z 12
Tytuł:
The environmental and social costs of the intermodal transport of semi-trailers by rail
Autorzy:
Merkisz-Guranowska, A.
Czerwinski, J.
Andrzejewski, M.
Daszkiewicz, P.
Powiązania:
https://bibliotekanauki.pl/articles/245971.pdf
Data publikacji:
2017
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
railway
intermodal transport
semi-trailer
environmental costs
social costs
Opis:
The dynamic development of transport recorded in recent decades is an important factor in the economic development of the world on the one hand, and on the other hand, it is a significant source of nuisance and environmental problems. The adverse impact of transport can be felt both in the natural environment and in society, where the dynamic development of this sector has enabled significant civilization development, with the effects varying depending on the level of economic development, the degree of advancement and use of the various transport sectors, geographical location (including climate), and also the sensitivity of the elements of the environment. Considering contemporary transport hazards, it is important to prevent them from occurring, and when that is not possible – limiting their impact on the environment and reducing the scale and extent of negative impacts. In the article, the environmental and social nuisance of transport of goods loaded in semitrailers was analysed. The transport of semitrailers using intermodal wagons pulled by the diesel locomotive in accordance with the assumptions adopted in the railway with the maximum length of train composition was taken into account.
Źródło:
Journal of KONES; 2017, 24, 3; 199-201
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An assessment of trailer suspension dynamic behavior via vibration measurements
Autorzy:
Hunicz, J.
Koszałka, G.
Golec, M.
Taratuta, L.
Powiązania:
https://bibliotekanauki.pl/articles/241829.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
road transport
exceptional transport
semi-trailer
vibration measurements
suspension dynamics
Opis:
A dynamic response of a semi-trailer suspension to a real road profile under two different loads was investigated in this study. The trailer was a low loader for transporting heavy and large loads which configuration could be adjusted to the current needs. During the described investigation the vehicle was composed of: detachable gooseneck, maximally extended low bed and 5 hydraulically steered axles comprised 2-axle and 3-axle assemblies. The experiments were performed for unloaded and loaded with 60 tons trailer, that was equal to maximum trailer pay load. Acceleration measurements at unsprung and sprung parts of the vehicle were applied. As a test surface a railway track crossing was chosen. Acceleration time series were analysed by the means of power spectral density. The isolation of free vibration and forced vibration frequencies and effectiveness of suspension damping over wide frequency range was done. Two characteristic signal bands were identified. In the frequency range up to 10 Hz vehicle vibration energy decreased for the load increase for both, sprung and unsprung parts. In contrast, in the range between 10 and 25 Hz at higher load increase of vibration energy was noticed, however only at unsprung mass. Data analysis revealed complexity of vehicle vertical acceleration as a response to the road profile. Nevertheless, it allowed for estimation of the trailer dynamic loads under real road conditions.
Źródło:
Journal of KONES; 2012, 19, 4; 333-338
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design of a frame to a semi low-loader
Autorzy:
Koszałka, G.
Dębski, H.
Dziurka, M.
Kaczor, M.
Powiązania:
https://bibliotekanauki.pl/articles/242123.pdf
Data publikacji:
2011
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
FEM
central beam
supporting structure
extendable semi-trailer
heavy transport
Opis:
The paper presents the process of design of a frame for a semi low loader for the transportation of oversize loads, especially wheeled and tracked machines. After considering different solutions of a frame, a central beam was chosen and an initial design was developed. The initial model of the frame was analyzed with the use of FEM and was then modified. Two final versions of the frame were prepared. One of them was used in a 4 axle trailer with a load deck that can be extended in length and width to carry oversize and heavy loads. An important advantage of the trailer is its versatility and the fact that in a non-extended state it meets the regulations for standard trailers and can carry loads without a special permission. The paper focuses on the application of FEM analysis in the design of the part of the beam where highest stresses were located. A design solution for a ladder frame, a schematic image of a box-type central beam, a design solution for rear ramps, geometrical models of semitrailer frame with boundary conditions, stress distributions in a non-extended and extended frame model, a section of the rear part of the frame with sliding plates visible and a pin guide bar for blocking frame extension, stress distribution in the front part of the frame, single and double supporting rib, side wall supporting plate and stress distribution after the use of plates and one supporting rib, stress distribution after the employment of plates and two supporting ribs, stress distribution in the alternative gooseneck design, main dimensions of the semitrailer, extended semitrailer are presented in the paper.
Źródło:
Journal of KONES; 2011, 18, 2; 215-223
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monitoring of the technical condition of semi-trailer trucks
Autorzy:
Kravchenko, A.
Kravchenko, K.
Powiązania:
https://bibliotekanauki.pl/articles/262978.pdf
Data publikacji:
2018
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
semi-trailer
control group
failings of operability
failure
malfunction
naczepa siodłowa
awaryjność
usterka
Opis:
The article presents results of the reliability study of controlled groups of vehicles possessed by two road transport enterprises working in the international transport sector (truck tractors – VOLVO FH 1242Т – 50 unit and MERCEDES-BENZ 1844 ACTROS LS -100 units, semi-trailers SCHMITZ, KRONE and KÖGEL – 50 units from each of the semi-trailers company). Possibilities for reliability increasing and reduction of the maintenance and repair cost are defined. The results of the reliability evaluation of vehicles during three years of operation with a different annual run (from brand new up to 440·103 km, including warranty period) are presented. Based on the conducted studies of failures and details malfunctions, units and systems of the vehicles, the average operating time to failure or occurrence of malfunctioning, the probability of failure-free operation, and the time spent on repairs were determined. Asymmetric graphs of working capacity disturbance were obtained, which allowed determining the level of const uction design perfection, the technological accuracy of equipment assembly and the quality of fastening works. The inadequate adaptability to operate on the roads of the CIS was reflected by symmetric distribution laws. The least reliable aggregate and assembly elements were identified.
Źródło:
Archiwum Motoryzacji; 2018, 81, 3; 17-28
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling of kinematics of movement on turn of a wheeled tractor with a hinge-operated drawbar on semitrailer
Modelowanie kinematyki ruchu ciagnika kolowego z naczepa ze sterowaniem zaczepem zawiasowym podczas skrecania
Autorzy:
Tajanowskij, G.
Tanas, W.
Szymanek, M.
Powiązania:
https://bibliotekanauki.pl/articles/793417.pdf
Data publikacji:
2012
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
tractor
semi-trailer
hinge-operated drawbar
mathematical modelling
kinematics
wheel tractor
shunting property
tractor manoeuvrability
trailer design
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2012, 12, 1
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Proposal of new maintenance scheme of air brake system on semi-trailer combination
Propozycja nowego systemu eksploatacji pneumatycznego układu hamulcowego naczepy
Autorzy:
Ruman, F.
Grenčík, J.
Powiązania:
https://bibliotekanauki.pl/articles/329254.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:
air brake system
FMECA
RPN
semi-trailer combination
maintenance
pneumatyczny układ hamulcowy
naczepa
eksploatacja
Opis:
The paper deals with the proposal of new maintenance scheme of air brake system on a semi-trailer combination. The structure of semi-trailer and the current maintenance scheme of trailers are described with focus on the basic air brake system design. Analysis of wear and damage of air brake system components used on the semi-trailer combination based on real experience from practice and creation of the FMECA analysis of the system using software support are presented. Based on the analysis performed, a new scheme of maintenance was designed which was aimed at reduction of the risk related to failure consequences. Main objective was to reduce the impact of any failure in any component on the air brake system. Proposed intervals of preventive maintenance execution are based on the calculation of the total costs associated with the consequences of failures that may arise from them and compared with costs associated with service inspections carried out on the analysed semi-trailer fleet.
W niniejszym artykule zaprezentowano nowy system eksploatacji pneumatycznego układu hamulcowego naczepy. Opisano w nim także obecną strukturę systemu technicznego naczepy z uwzględnieniem podstawowego układu hamulcowego. Przedstawiono opartą o rzeczywiste wyniki badań komputerową analizę zużycia i uszkodzeń elementów układu hamulcowego z wykorzystaniem metody FMEA. Na jej podstawie zaprojektowano nowy system eksploatacji analizowanego układu hamulcowego, charakteryzujący się zmniejszonym ryzykiem wystąpienia awarii. Głównym celem projektu było zredukowanie ryzyka wystąpienia uszkodzeń poszczególnych elementów układu hamulcowego. Zaproponowane terminy przeglądów profilaktycznych są wynikiem porównania ogółu kosztów wynikających ze skutków możliwych awarii a kosztami związanymi z kontrolą serwisową dla analizowanej grupy naczep.
Źródło:
Diagnostyka; 2015, 16, 2; 11-19
1641-6414
2449-5220
Pojawia się w:
Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Innovative stress analysis and machine learning forecasting for semi-trailer truck body durability
Autorzy:
Lyashuk, Oleh
Levkovych, Mykhailo
Stashkiv, Mykola
Pastukh, Oleh
Martyniuk, Volodymyr
Mironov, Dmytro
Rabe, Marcin
Vovk, Yuriy
Powiązania:
https://bibliotekanauki.pl/articles/27324297.pdf
Data publikacji:
2023
Wydawca:
Fundacja Centrum Badań Socjologicznych
Tematy:
transport
energy resources
semi-trailer truck body
static stress
static displacement
CAD model
algorithm
machine learning
Opis:
This article presents an in-depth analysis of the stress-deformation state (SDS) in the bottom structure of a semi-trailer truck body. Engineering analysis was conducted utilizing the SolidWorks software, focusing on a comprehensive CAD model of the semi-trailer truck body. The study explored variations in SDS parameters resulting from alterations in the geometric parameters of the body bottom elements. The research investigated alterations in static stress and displacement relative to changes in the proportions of the cross-section of the channel while maintaining fixed geometric dimensions of the workpiece, thickness of the workpiece, and the material of the body bottom. Graphical representations were generated to illustrate the variations in static stress, displacement, and safety margin concerning the thickness of the shelf and channel. Additionally, dependencies were derived that correlate static stresses in the channel with the thickness of the channel wall and the thickness of the body bottom sheet. The study results were compiled and summarized, offering valuable insights into the stress-deformation state of the semi-trailer truck body's bottom. Furthermore, machine learning techniques, specifically the RandomForest algorithm, were implemented in a Python environment to predict changes in static stress based on various factors. The model's predictions were validated by comparing predicted static stress values with actual values on a test sample. These findings facilitate efficient selection of appropriately sized elements by predicting static stress values, employing the RandomForest machine learning algorithm.
Źródło:
Journal of Sustainable Development of Transport and Logistics; 2023, 8, 2; 43--57
2520-2979
Pojawia się w:
Journal of Sustainable Development of Transport and Logistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The principles of motor vehicle taxation in selected EU countries
Autorzy:
Mahaček, D.
Hammer, J.
Šimurková, P.
Poliaková, A.
Blaho, P.
Powiązania:
https://bibliotekanauki.pl/articles/263633.pdf
Data publikacji:
2018
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
vehicle tax
tax rates
semi-trailer
the taxation system
podatek od środków transportowych
stawki podatkowe
naczepa
system podatkowy
Opis:
The article deals with the tax on motor vehicles in relation to the different principles of taxation of trucks in selected EU countries. There is a system of taxation in each EU country and the level of taxes and fees itself vary. As carriers carrying out road freight not only on closed national markets, but they are engaged in road transport on a common international market, it is important for the competitiveness to analyze the level of the use of transport by tax in foreign countries. The goal of article is to compare tax rates, regarding the particular semi-trailer and also point to significant differences concerning the principles of taxation but also the level of the tax rate itself in selected EU countries.
Źródło:
Archiwum Motoryzacji; 2018, 82, 4; 31-42
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Theoretical basis of automobile freight system with changeable trailers
Teoreticheskie osnovy sistemy avtomobilnykh perevozok so smennymi pricepami
Autorzy:
Slobodyanyuk, M.
Gribinichenko, M.
Powiązania:
https://bibliotekanauki.pl/articles/792666.pdf
Data publikacji:
2012
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
car
semi-trailer
cargo transportation
freight system
cost
distance
automobile freight system
road freight
rolling stock
automobile transport
Opis:
In the article the theoretical basis for calculating the productivity of the vehicle and determination of the rational distance whileorganizing the cargo transportation with the change of trailers is offered.
Предложены теоретические основы расчета производительности автомобиля и определения рационального расстояния перевозки при организации грузовых перевозок со сменой прицепов.
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2012, 12, 3
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The study of stress-strain state elements of the truck semi-trailer body bottom
Autorzy:
Lyashuk, Oleg
Levkovych, Mykhailo
Vovk, Yuriy
Gevko, Ivan
Stashkiv, Mykola
Liubomyr, Slobodian
Pyndus, Yuriy
Powiązania:
https://bibliotekanauki.pl/articles/27311338.pdf
Data publikacji:
2023
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
semi-trailer body bottom
channel
scan
static stress
static displacement
CAD model
spód nadwozia naczepy
kanał
skan
naprężenie statyczne
przemieszczenie statyczne
model CAD
Opis:
Research on the influence of geometric parameters of body bottom elements on the stress-strain state (SSS) of the truck with the general application of computer simulation methods was conducted. The nature of the change in static stress and displacement depending on the change in the proportions of the crosssection of the channel at fixed geometric dimensions of the workpiece and the thickness of the workpiece and the bottom material of the body has been studied. Analytical, numerical and experimental methods were used in the study of the stress-strain state of the metal structure of car bodies. Its weight minimization is an important aspect of a truck body design. Because an excess weight leads to increased production costs, reduced payload and reduced fuel efficiency. According to the concept of weight reduction with the provision of a given strength, the body model with variable parameters of the bottom elements is modelled and analyzed. CAD - body models and analysis of the stress-strain state of the channels of the bottom of the bodies have been performed using the software package SolidWorks.
Źródło:
Zeszyty Naukowe. Transport / Politechnika Śląska; 2023, 118; 161--172
0209-3324
2450-1549
Pojawia się w:
Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The environmental analysis of semi-trailers carriage in the intermodal transport
Analiza środowiskowa przewozu naczep w transporcie intermodalnym
Autorzy:
Merkisz-Guranowska, Agnieszka
Czerwiński, Jarosław
Andrzejewski, Maciej
Daszkiewicz, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/33768587.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz - Poznański Instytut Technologiczny
Tematy:
environmental analysis
carriage
semi-trailer
intermodal transport
railway transport
road transport
ecological aspect
analiza środowiskowa
przewóz
naczepa
transport intermodalny
transport kolejowy
transport drogowy
aspekt ekologiczny
Opis:
In the paper the environmental nuisance of transport of goods loaded in semi-trailers was analysed, using both road and rail transport. In the second case the transport of semi-trailers using intermodal wagons pulled by the diesel locomotive was taken into account. The ecological aspects focused on such harmful compounds as: carbon monoxide, hydrocarbons and nitrogen oxides.
W artykule przeprowadzono analizę uciążliwości środowiskowej przewozu towarów naczepami, z wykorzystaniem zarówno transportu drogowego, jak i kolejowego. W tym drugim przypadku uwzględniono transport naczep przy wykorzystaniu intermodalnych wagonów kolejowych ciągniętych przez lokomotywę spalinową. Aspekty ekologiczne koncentrowały się na takich szkodliwych związkach, jak: tlenek węgla, węglowodory i tlenki azotu.
Źródło:
Rail Vehicles/Pojazdy Szynowe; 2017, Nr 4; 10-14
0138-0370
2719-9630
Pojawia się w:
Rail Vehicles/Pojazdy Szynowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Proposal of new maintenance system of air brake system on semi-trailer combination aimed at increase of operational safety
Autorzy:
Grenčík, J.
Ruman, F.
Powiązania:
https://bibliotekanauki.pl/articles/312040.pdf
Data publikacji:
2013
Wydawca:
Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:
pneumatyczne napędy hamulcowe
ciężarówka
naczepa
hamowanie
hamulce
analiza ryzyka
transport drogowy
air brake system
truck
semi-trailer
brakes
braking
RPN
Risk Priority Number
failure risk
road transport
Opis:
The paper deals with the proposal of new maintenance system of air brake system on a semitrailer combination. The structure of semi-trailer and the current maintenance system of trailers are described with focus on the basic air brake system design. Analysis of wear and damage of air brake system components used on the semi-trailer combination based on real experience from practice and creation of the FMECA analysis of the system using software support are presented. Based on the analysis performed, a new system of maintenance was designed which was aimed at reduction of the risk related to failure consequences. The proposed system uses RPN (risk priority number) values resulting from the proposed preventive maintenance system and is compared with the currentmaintenance system. Main objective was to reduce the impact of any failure in any component on the air brake system. On the basis of the analysis subsequently new methods of failures detection of air brake system components, preventive measures, and suggested new intervals of preventive maintenance for the air brake system are also proposed. Proposed intervals of preventive maintenance execution are based on the calculation of the total costs associated with the consequences of failuresthat may arise from them and compared with costs associated with service inspections carried out on the analysed semi-trailer fleet. The proposed maintenance system has decreased RPN values in comparison with the current system and in practical operation is expected to increase safety of semitrailer combinations, thus minimize probability of a failure in any component of the air brake system.
Źródło:
Autobusy : technika, eksploatacja, systemy transportowe; 2013, 14, 3; 1385-1392
1509-5878
2450-7725
Pojawia się w:
Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-12 z 12

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