Temat: suspension spring - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Budowa ustrojów nośnych i zawieszeń samochodów ciężarowo - osobowych wysokiej mobilności Sił Zbrojnych RP
Construction of load-carrying structures and suspensions in high mobility cargo and passenger carrying vehicles operated by the Polish Armed Forces
Autorzy:: Kosobudzki, M.
Jamroziak, K.
Tematy:: ustrój nośny
rama pojazdu
zawieszenie
resor
sprężyna śrubowa
drążek skrętny
amortyzator
zawieszenie zależne
zawieszenie niezależne
pojazdy wojskowe
komfort jazdy
load-carrying structure
chassis frame
suspension
suspension spring
coil spring
torsion bar
shock absorber
dependent suspension
independent suspension; Pokaż więcej
Wydawca:: Akademia Wojsk Lądowych imienia generała Tadeusza Kościuszki
Powiązania:: https://bibliotekanauki.pl/articles/347310.pdf Link otwiera się w nowym oknie
Opis:: Przedstawiono ogólną budowę ustrojów nośnych i zawieszeń samochodów ciężarowo-osobowych wysokiej mobilności eksploatowanych w pododdziałach Sił Zbrojnych RP. Zamieszczono również aktualny podział pojazdów. Opis wzbogacono rysunkami i danymi tabelarycznymi. W treści scharakteryzowano wady i zalety przyjętych rozwiązań konstrukcyjnych omawianych pojazdów.
The article discusses the general construction of load-carrying structures and suspensions in high mobility cargo and passenger carrying vehicles operated by the Polish Armed Forces. As well as this, a current classification of vehicles is presented. The description is expanded with figures and tables. The pros and cons of the adopted technical solutions are discussed.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Evaluation of the effectiveness of using an electromechanical shock absorber in a subway car
Autorzy:: Liubarskyi, Borys
Kuznetsov, Valeriy
Kardas-Cinal, Ewa
Lukashova, Natalia
Petrenko, Oleksandr
Nikonov, Oleh
Nikonov, Dmytro
Tematy:: electromechanical shock absorber
subway car
indicators of dynamic quality
spring suspension
running gear; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Powiązania:: https://bibliotekanauki.pl/articles/2200942.pdf Link otwiera się w nowym oknie
Opis:: The paper evaluates the effectiveness of the electromechanical shock absorber for a subway car based on dynamic quality indicators. To determine them, a method of synthesis of random forced vertical oscillations of a dynamic model of a subway car was developed, which is based on the method of sliding summation taking into account the spectral density obtained when processing the test results of a subway car. Also in the work the technique on definition of indicators of dynamic quality of the metrocar with electromechanical shockabsorbers which is based on modeling of processes of movement of the subway car on a site of a way with casual roughness and definition, by results of modeling, indicators of dynamic quality is created. The study of forced random oscillations of the dynamic model of a subway car showed that the spring suspension based on electromechanical shock absorbers has a significant advantage over the central spring suspension for all quality indicators in the entire range of speeds. The dependence of the average power generated by the shock absorber is established.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Control system of pneumatic air-spring suspension on transport
Sistema upravlenija pnevmaticheskim ressornym podveshivaniem na transporte
Autorzy:: Vivdenko, Y.
Krasnobryzheva, J.
Tematy:: control system
air-spring suspension
transport
railway transport
algorithm
servomotor
three-stage throttle
global positioning system; Pokaż więcej
Wydawca:: Komisja Motoryzacji i Energetyki Rolnictwa
Powiązania:: https://bibliotekanauki.pl/articles/792874.pdf Link otwiera się w nowym oknie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: The investigations of suspension model and its experimental characteristics for the air springs of truck trailer
Autorzy:: Obst, Maciej
Kurpisz, Dariusz
Wasilewicz, Piotr
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; Pokaż więcej
Wydawca:: Politechnika Poznańska. Instytut Mechaniki Stosowanej
Powiązania:: https://bibliotekanauki.pl/articles/2146580.pdf Link otwiera się w nowym oknie
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.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Characteristic of vehicle suspension coil spring : comparison of experiment and finite element method simulation
Autorzy:: Cuber, D.
Gandyk, M.
Tematy:: FEM
simulation
coil spring
vehicle suspension; Pokaż więcej
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Powiązania:: https://bibliotekanauki.pl/articles/243817.pdf Link otwiera się w nowym oknie
Opis:: Coil springs do not always has regular geometry with constant pitch and constant mean diameter. Geometry of spring is more complex. Furthermore, spring stiffness could change with deflection. That makes calculation of spring stiffness more complicated than just putting four values into mathematical formula. In article has been presented two investigation methods of spring characteristic. Investigated object is a passenger vehicle suspension coil spring. Recognition spring characteristic is primary stage of vehicle dynamic suspension simulation. It has a very big impact on the vehicle height, comfort, handling and safety of vehicle. It is often assumed that vehicle spring has constant stiffness coefficient, which is sometimes a reason of incorrect suspension model. Vehicle springs rather has a progressive characteristic than linear. One of presented method is traditional, experimental compression test. Second, one is a measurement and modelling of spring geometry. Than analysing it in finite element method (FEM) simulation. Comparison has been done to check property of FEM process. Computed compression has been done in ABAQUS CAE 6.13-1 software. Analysis has shown that process of analysing is useful. There were obtained a good agreement between experimental research and computed model. In spite of irregular spring geometry, final characteristic is close to linear. Progressiveness is visible but not high.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Hydropneumatic suspension testing of a wheeled armoured personnel carrier
Autorzy:: Hryciów, Zdzisław
Rybak, Piotr
Wojciechowski, Michał
Wachowiak, Przemysław
Kalicki, Bartosz
Tematy:: hydropneumatic suspension
polytropic process
spring characteristic
static deflection; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Powiązania:: https://bibliotekanauki.pl/articles/24200841.pdf Link otwiera się w nowym oknie
Opis:: The purpose of this study was to determine the effect of gas pressure and temperature on the spring characteristic of a HP strut used in a wheeled armoured personnel carrier. The research was performed based on a simulation model. Data to validate the model were obtained during experimental tests. The results indicate, among other things, that the friction generated in the seals is an important source of resistance force. Comparison of the simulation results with the measured characteristics indicates a proper modelling of the strut operation. Simulation studies have indicated that it is easy to modify the required suspension parameters by adjusting the initial gas pressure. A linear effect of pressure on static deflection can be assumed. Temperature has a strong influence on the spring characteristic. When it changes, significant changes in vehicle height are observed due to the lack of a compensation system. The temperature changes are not only due to changes in ambient temperature, but also by intense heating of the HP struts caused by the vehicle moving over rough terrain.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Diagnostics of an innovative repair kit for transport equipment units
Autorzy:: Kushaliev, Dauren Kaysarovich
Zabieva, Aliya Batyrbekovna
Balgynova, Akzharkyn Merekeevna
Burdzik, Rafał
Alipbaev, Zhasulan Ratkanovich
Tematy:: innovative repair kit
spring inserts
car suspension
crosspieces; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Powiązania:: https://bibliotekanauki.pl/articles/27313803.pdf Link otwiera się w nowym oknie
Opis:: The article presents the transmission of a truck, whereinnovativerepairkits of the driveshaft crosspiece are used. The crosspiece is an element of the transmission, and transmits all the torque from the gearbox to the wheels of the car, therefore it is a heavily loaded part. A mathematical model has been developed that describes in detail the process of changing the size of a movable conical spring insert in a sliding bearing used in the mechanism of the cardan shaft crosspiece. The innovative repair kit is designed to improve performance by introducing an elastic intermediate element into the bearing. This element is a movable insert in the form of a helical or conical spring, and its compressible force is adjustable. This creates a tight seal on the working surfaces, preventing oxidative processes and activation of microplastic deformation of the surface.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Selection of elastic suspension elements for the special use vehicle
Autorzy:: Borkowski, W.
Michalowski, B.
Paplinski, K.
Rybak, P.
Wysocki, J.
Tematy:: special vehicle
suspension
spring
elastic element
lateral tilt stabilizer; Pokaż więcej
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Powiązania:: https://bibliotekanauki.pl/articles/242198.pdf Link otwiera się w nowym oknie
Opis:: The work analyzes the possibility of using a truck chassis in terms of installing a specific device. As part ofwork was selected the vehicle, identified the necessary geometric parameters and the mass allowing of modernization, with particular emphasis on the required structural changes in the front and rear suspension. To this were used, the developed two phase methodology of calculation of the metal elastic elements (springs) and mechanical lateral tilt stabilizers. Results of numerical calculations are presented in the form of recommendations to redesign of the front and rear suspension. However, in the front suspension should be made a new spring and a mechanical lateral tilt stabilizer, while rear spring suspension meets the requirements in terms of elastic characteristics (adequate the coefficient of rigidity) is requiredonly adjustment of the static deflection of the suspension for example by adjusting the radii of leaf of the spring. Because of the design solution of the driving rear axle (so called driving axle trolley) was not proposed mechanical lateral tilt stabilizer. Paper present diagram of the forces acting on a vehicle with special equipment, results of the calculation loads acting on the suspension components fitted to a lorry with a special device, results of the calculation loads acting on the base vehicle suspension components, the basic parameters of a lorry with special hull and performance graph of the front suspension leaf spring resilience.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Fuzzy logic controller to control the active air suspension
Autorzy:: Woś, Piotr
Dindorf, Ryszard
Takosoglu, Jakub
Tematy:: Fuzzy Logic Controller
air spring
pneumatic actuators
active air suspension; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Powiązania:: https://bibliotekanauki.pl/articles/263503.pdf Link otwiera się w nowym oknie
Opis:: The paper presents the practical implementation of active seat suspension used in vehicles and machinery. The test object is a passive suspension system, in which the vibro-insulating properties have been improved by using an active system controlled by a pneumatic bellows cylinder. Bellows cylinders in pneumatic drives act as single-acting cylinders - push cylinders. The filled bellows cylinder under constant pressure acts as an air spring. The volume of the air cushion changes under the pressure inside. Proportional pressure valve was used to control the bellows cylinder and noncontact relative displacement laser triangulation sensor was used to measure displacement of the seat. A Proportional-Derivative-Fuzzy Logic Controller (PD-FLC) was used for the control. The use of Fuzzy Logic Controller (FLC) enables the transition from a quantitative description to a qualitative process. The system structure with a designated output control function has been presented. Test results on the seat suspension vibro-insulating properties of a working machine are presented.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Analiza usprężynowania wózków wagonów towarowych typu Y25
Analysis of the suspen¬sion of freight wagons bogies type Y25
Autorzy:: Sobaś, Marek
Tematy:: sprężyna śrubowa
usprężynowanie
zawieszenie pierwszego stopnia
wózek wagonu towarowego
coil spring
suspension
first suspension
freight wagon bogie; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz - Poznański Instytut Technologiczny
Powiązania:: https://bibliotekanauki.pl/articles/34586143.pdf Link otwiera się w nowym oknie
Opis:: W artykule przedstawiono dalszą problematykę sprężyn śrubowych zawieszenia pierwszego stopnia wózków wagonów towarowych typu Y25 w świetle obliczeń wytrzymałościowych, technologii wykonania, właściwego doboru materiału na wykonanie sprężyn zawieszenia pierwszego stopnia oraz niektórych doświadczeń eksploatacyjnych. Obliczenia wytrzymałościowe przeprowadzono dla obciążeń pionowych i poprzecznych działających na sprężynę zewnętrzną i wewnętrzną.
The article presents the further problems of coil springs of the first suspension of the freight wagons bogies type Y25 in the light of strength calculations, the technology of carrying out, the proper selection of material for the execution of the first suspension of springs and some operational experiences. Strength calculations were performed for vertical and lateral loads acting on the outer and inner spring.
Dostawca treści:: Biblioteka Nauki

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