Wszystkie pola: suspension - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Solutions in the vehicle suspension
Autorzy:: Niculescu, Adrian Ioan
Jankowski, Antoni
Kowalski, Miroslaw
Sireteanu, Tudor
Powiązania:: https://bibliotekanauki.pl/articles/247026.pdf
Data publikacji:: 2019
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: active suspension
semi-active suspension
comfort
stability
clearance
progressive cushions
VZN
Opis:: The paper presents a review of the suspension solutions used on the street vehicle up to the now a days, finalising with presentation of their damping characteristics and with evaluation of their advantages or disadvantages. Long time the suspension systems have been dominated by the classic passive suspensions realized with metallic springs, shock absorbers with constant damping coefficients and anti-roll bars, excepting some luxury and sport cars using semi-active and active suspensions. There are presented some semi-active suspension solutions with continuous or discontinuous damping characteristics adjustment and the evolution of the Citroen and other active suspensions. All of them improve in some matter the performances but all of them have not ability to recuperate energy and has auxiliary energy consumption so last period the electromagnetically shock absorbers are researched, the paper presenting some of them. The paper also presents magneto rheological MR damper, solutions for adjustable passive shock absorbers and solutions for passive shock absorbers with variable damping coefficient with the stroke, e.g. Monroe Sensa Trac, Citroën Solution and VZN solution, with their damping characteristics and performances.
Źródło:: Journal of KONES; 2019, 26, 4; 185-196
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Analysis of the end-of-life the front suspension beam of a vehicle
Autorzy:: Kowalski, Sławomir
Opoka, Kazimierz
Ciuła, Józef
Powiązania:: https://bibliotekanauki.pl/articles/2172028.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:: vehicle suspension system
fretting wear
suspension beam
vehicle
Opis:: The aim of the article is focused on assessing the degree of end-of-life for the vehicle front suspension beam. The first stage of the problem taken was represented by a road test of the vehicle at distance expressed by 100.000 km. Following the end of the operation tests, the suspension beam was dismantled and subjected to laboratory tests. The tests demonstrated numerous beam top layer plastic deformations, which came into being as a result of the vehicle driving onto an obstacle on the roadway or onto raised road infrastructure elements. At the point of connection of the stabiliser rod to the beam, surface degradation was noted, which consisted in the considerable change of the surface profile, hardness reduction and the grey and dark brown colour. Corrosion regions and fretting wear traces were noted. Corrosion pits, scratches and material build-ups was observed. The analysis of the chemical composition of wear products demonstrated the presence of elements such as iron, oxygen, chlorine and silicon, as an effect of operational conditions.
Źródło:: Eksploatacja i Niezawodność; 2022, 24, 3; 446--454
1507-2711
Pojawia się w:: Eksploatacja i Niezawodność
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Laboratory tests of active suspension system
Autorzy:: Konieczny, J.
Powiązania:: https://bibliotekanauki.pl/articles/244574.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: active vehicle suspension
control system
energy consumption
laboratory research
Opis:: The main purpose of this study is to design an active vehicle suspension ensuring high vibration isolation efficiency and stability though the limited consumption of external energy. Active systems used in vehicle suspensions widely employ parallel (full active) structures. It shall be analysed and tested experimentally. The major part of the study summarises the laboratory experiments carried on a designed active vehicle suspension in the form of a quarter car model. Apart from the vibration isolation efficiency offered by the designed and engineered suspension, other considered performance indicators include the system's stability and external energy demand. A laboratory model of the suspension is described and laboratory tests are outlined that were performed to check the adequacy of various control algorithms. An attempt is made to evaluate the energy demand for the given structure and to determine the power ratings of the source supplying the active vibration isolation system. Inter alia quarter-vehicle full active suspension, vibration displacement transmissibility in the function of frequency, transmissibility function from the input to the output for various types of actuator’s controllers, comparison of instantaneous power absorbed from the power-supplying unit for various types of actuator's controllers, comparison of instantaneous power intake from the supplying unit for various types of controllers are presented in the paper.
Źródło:: Journal of KONES; 2011, 18, 1; 263-271
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: The *-holonomy group of the Stefan suspension of a diffeomorphism
Autorzy:: Piątkowski, Andrzej
Powiązania:: https://bibliotekanauki.pl/articles/1311817.pdf
Data publikacji:: 1993
Wydawca:: Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:: Stefan foliation
suspension
holonomy group
Opis:: The definition of a Stefan suspension of a diffeomorphism is given. If $_g$ is the Stefan suspension of the diffeomorphism g over a Stefan foliation , and G₀ ∈ satisfies the condition $g|G₀ = id_{G₀}$, then we compute the *-holonomy group for the leaf $F₀ ∈ _g$ determined by G₀. A representative element of the *-holonomy along the standard imbedding of S¹ into F₀ is characterized. A corollary for the case when G₀ contains only one point is derived.
Źródło:: Annales Polonici Mathematici; 1993, 58, 2; 123-129
0066-2216
Pojawia się w:: Annales Polonici Mathematici
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Suspension of transgression
Autorzy:: James, I.
Powiązania:: https://bibliotekanauki.pl/articles/1382421.pdf
Data publikacji:: 1962
Wydawca:: Polska Akademia Nauk. Instytut Matematyczny PAN
Źródło:: Fundamenta Mathematicae; 1961-1962, 50, 5; 501-507
0016-2736
Pojawia się w:: Fundamenta Mathematicae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Pneumatic vibroisolation system of the base desk with natural frequency regulation
Autorzy:: Jírová, Radka
Pešík, Lubomír
Powiązania:: https://bibliotekanauki.pl/articles/2091235.pdf
Data publikacji:: 2021
Wydawca:: Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:: pneumatic suspension
base block suspension
testing facility suspension
zawieszenie pneumatyczne
zawieszenie bloku bazowego
zawieszenie stanowiska testowego
Opis:: Vibroisolation systems of base desks for machine and testing facilities usually cannot effect efficient changing of their own frequencies according to operating conditions. Especially in the case of the automotive industry, the possibility of changing natural frequencies is very desirable. During varying operating conditions, the vibroisolation system needs to be regulated easily and quickly regarding the minimisation of dynamical forces transmitted to the ground and to ensure the stability of the testing process. This paper describes one of the options of tuning the base desk at a relatively short time and by sufficient change of own frequencies, which decides the dynamical behaviour of the whole system.
Źródło:: Zeszyty Naukowe. Transport / Politechnika Śląska; 2021, 113; 91--100
0209-3324
2450-1549
Pojawia się w:: Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Hydropneumatic suspension modelling for wheeled armoured fighting vehicle
Autorzy:: Ławniczak, S.
Simiński, P.
Powiązania:: https://bibliotekanauki.pl/articles/242251.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
AFV vehicle
hydropneumatic suspension system
modelling
Opis:: The paper shall present the way for building a model for simulation studies of the wheeled armoured fighting vehicle with hydropneumatic suspension of driving wheels axles. Thus developed model shall be used to conduct simulation studies in the area of the vehicle safety. The scope of terms and conditions for applications of hydropneumatic suspensions in wheeled armoured fighting vehicles is justifled due to a number of their advantages, such as: progressive characteristics of elasticity provides great driving comfort with a small load, as well as apossibility of placing a considerable load on the vehicle (the requirements are mutually exclusive in classical suspension). Compressed nitrogen, sealed in the sphere using an elastic diaphragm, is approximately six-fold more flexible than steel springs elements at static load of the suspension, which provides high level of driving comfort; apossibility to lower the height of the vehicle by changing the road clearance which effects in e.g. higher availability for airborne transport and soon. However, they are not free from disadvantages; therefore, it is the studies of their justified use, especially related to traffic safety, that should have a final say in individual cases. The here to presented model of hydropneumatic suspension and the vehicle motion model are applied to assess dynamic capabilities and evaluate the real object motion safety.
Źródło:: Journal of KONES; 2009, 16, 2; 285-297
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Multifunction suspension of EOD robot
Autorzy:: Łopatka, M. J.
Muszyński, T.
Rubiec, A.
Powiązania:: https://bibliotekanauki.pl/articles/244520.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: unmanned ground vehicle
mobility
hydropneumatic suspension
simulations
Opis:: One of the applications of Unmanned Ground Vehicles (UGV) consists in conducting tasks connected to removing and disposing of Improvised Explosive Devices (IED). The tasks are often performed in hard to reach places, on off-road terrain, with weights and dimensions of explosives which require the use of work attachments of considerable lifting capacities. Due to this, it is necessary to equip the robot with suspension designed for performing such tasks. Because of variable character of the charges which are subjected to the chassis of robots, it is necessary to build a suspension with variable characteristics and examine efficiency of its action. One of the research methods that can be used for that purpose are the simulations based on the method of Multibody Systems. The paper presents a hydro-pneumatic suspension system of an EOD robot, which has been developed at the Military University of Technology, describes its model, simulation findings and the initial verification thereof based on a real object. Apart from that, special consideration is given to the quality and effectiveness of UGV suspension systems. The development of a basic platform enables the use of the platform for various purposes as a carrier of a multi-sensor system for detecting dangerous materials or for carrying other attachments.
Źródło:: Journal of KONES; 2011, 18, 1; 343-350
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: A new method for determination of pulp suspension drainability
Nowa metoda oceny odwadnialności zawiesin włóknistych
Autorzy:: Przybysz, P.
Przybysz, K.
Kuncewicz, C.
Powiązania:: https://bibliotekanauki.pl/articles/7249.pdf
Data publikacji:: 2014
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: new method
determination
pulp suspension
drainability
freeness
drainage
fibrous suspension
drainage apparatus
Źródło:: Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology; 2014, 87
1898-5912
Pojawia się w:: Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Ultrasonic studies of suspension of glass particles in gel
Autorzy:: Drelich, R.
Kaczmarek, M.
Kubik, J.
Powiązania:: https://bibliotekanauki.pl/articles/279458.pdf
Data publikacji:: 2000
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: mixture
suspension
ultrasonic waves
scattering
Opis:: Main purpose of this paper is experimental investigation of propagation of ultrasonic waves in suspensions of solid particles (glass beads) in gel. The dependence of phase velocity and attenuation coefficient on the volume fraction and size of solid particles was studied. Special attention has been focussed on determination of role of size and volume fraction of solid particles on scattering of the waves at ultrasonic frequencies.
Ultradźwiękowe badania mieszaniny żelu i kulek szkła w stanie zawiesiny. W pracy przedstawiono wyniki badań eksperymentalnych propagacji fal ultradźwiękowych w zawiesinie utworzonej z mieszaniny żelu ultrasonograficznego i cząstek szkła. Istotą pracy jest zbadanie dyspersji prędkości fazowej i zależności współczynnika tłumienia od częstotliwości fal podłużnych. Szczególnie skoncentrowano się na określeniu roli efektów rozproszeniowych w takich materiałach w funkcji wielkości ziaren i udziału objętościowego frakcji stałej w zakresie częstotliwości od 0.7 MHz do 3MHz.
Źródło:: Journal of Theoretical and Applied Mechanics; 2000, 38, 4; 833-841
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Blast wave and suspension system interaction - numerical approach
Autorzy:: Baranowski, P.
Małachowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/247125.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: suspension system
pressure wave
SPH
ALE
FE modeling
Opis:: The main aim of this paper is to present the effective example of coupled experimental and numerical tests. Moreover, a development process of a numerical model of a terrain vehicle suspension system is presented. Experimental tests were carried out on the machine Instron 8802 with an assistance of the high-speed camera Phantom v12. Obtained stress-strain curves were applied into the FE model to estimate material constants for Mooney-Rivlin constitutive rubber model and for numerical failure criterion. Geometry of the tire and other suspension elements were achieved using reverse engineering technology. Due to the fact that a tire is such a complex structure to be represented with numerical methods, it was important to develop a discrete model of tire as much similar to the real one as possible. Consequently, an exact tire cords pattern was implemented into the FE model of the tire, which was obtained by the assistance of a microscope and X-ray device. In the next step, numerical analyses were performed simulating the TNT explosion under the suspension system with a simplified motor-car body. Nonlinear dynamic simulations were carried out using the explicit LS-Dyna code, with central difference scheme with modified the time integration of the equation of motion. In order to simulate the blast wave propagation the Smoothed Particle Hydrodynamics (SPH) method and Arbitrary Lagrangian-Eulerian formulation with Jones Wilkins Lee (JWL) equation defining the explosive material were used. Finally, results from both approaches were compared.
Źródło:: Journal of KONES; 2011, 18, 2; 17-24
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Deep learning based road recognition for intelligent suspension systems
Autorzy:: Sun, Jinwei
Cong, Jingyu
Powiązania:: https://bibliotekanauki.pl/articles/2055054.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: intelligent suspension system
deep learning
road recognition
Opis:: This paper presents a deep learning-based road recognition strategy for advanced suspension systems. A four-quarter suspension model with a magnetorheological (MR) damper is developed, and four typical road images with corresponding roughness data are collected. A back-propagation neural network based autoencoder and Convolutional Neural Networks (CNN) are utilized to form the deep learning structure. By utilizing the multi-object genetic algorithm, the optimal parameters can be obtained, and the control current can be adaptively adjusted. Simulation results indicate that the designed structure can identify the road type accurately, and the recognition-based control strategy can improve the suspension performance effectively.
Źródło:: Journal of Theoretical and Applied Mechanics; 2021, 59, 3; 493--508
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: The investigations of suspension model and its experimental characteristics for the air springs of truck trailer
Autorzy:: Obst, Maciej
Kurpisz, Dariusz
Wasilewicz, Piotr
Powiązania:: https://bibliotekanauki.pl/articles/2146580.pdf
Data publikacji:: 2020
Wydawca:: Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:: air springs characteristics
damping elements of truck suspension
light truck trailer suspensions
suspension analysis of stanchion trailer
suspension research of light truck trailer
frame loads of air spring suspension
air spring experimental research
sprężyna powietrzna
drgania samochodu ciężarowego
zawieszenie samochodu
zawieszenie naczepy
tłumienie drgań
Opis:: Air springs applied as shock damping elements are often found in the design of variety modern truck and trailer suspensions. They can also be found as damping and stabilizing suspension elements in the passenger cars and other machines. The advantage of air springs, compared to steel coil springs or leaf springs, is a better damping quality in a wide range of frequencies. The air springs stiffness can be regulated according to the requirements and working conditions. The applied air springs also allow to stabilize the distance between the vehicle body and road level in function of loading. Some proposals of vehicle suspension models can be found in technical literature where the air spring is the main elastic subassembly. Mathematical model descriptions of the suspension with air spring for vehicles apply the thermodynamic laws and relationships between the mechanical forces of cooperating suspension elements, parts geometry (suspension arms), material stiffness (reinforced rubber) and other properties (damping). The results of own investigations on the suspension model of an air spring for cargo trailer have been taken into consideration in this paper. The presented suspension model was applied to design the frame construction of a light stanchion trailer where aerodynamic drag and construction mass were reduced. The suspension model of air springs for a trailer was applied for frame loads evaluation of the light trailer. It was also used for the strength analysis of the frame construction with the reduced mass. The estimated frame loads such as torque, normal forces and bending moments were used for strength estimation of the upgraded trailer frame.
Źródło:: Vibrations in Physical Systems; 2020, 31, 2; art. no. 2020221
0860-6897
Pojawia się w:: Vibrations in Physical Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Remarks on the absolute suspension
Autorzy:: Szymański, Andrzej
Powiązania:: https://bibliotekanauki.pl/articles/1364702.pdf
Data publikacji:: 1974
Wydawca:: Polska Akademia Nauk. Instytut Matematyczny PAN
Źródło:: Fundamenta Mathematicae; 1974-1975, 86, 2; 157-161
0016-2736
Pojawia się w:: Fundamenta Mathematicae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Efektywność wytwarzania zawiesiny w smukłym aparacie
Efficiency of suspension preparation in a slim vessel
Autorzy:: Kamieński, J.
Spytkowski, S.
Powiązania:: https://bibliotekanauki.pl/articles/2070801.pdf
Data publikacji:: 2009
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: mieszanie
zawiesina
mixing
suspension
Opis:: Przedstawiono wyniki badań nad unoszeniem cząstek ciała stałego z dna zbiornika aparatu, w którym znajdują się dwa oddzielnie napędzane mieszadła obrotowe. Analizowano jak obecność górnego mieszadła wpływa na stopień zmieszania układu i efektywność mieszania.
Mixing of liquid-solid system in a mixing vessel with two independently driven impellers was investigated. An influence of upper impeller on the system mixing index and the efficiency of mixing was analysed.
Źródło:: Inżynieria i Aparatura Chemiczna; 2009, 6; 94-95
0368-0827
Pojawia się w:: Inżynieria i Aparatura Chemiczna
Dostawca treści:: Biblioteka Nauki

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