Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "air springs" wg kryterium: Wszystkie pola

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-10 z 10
    Tytuł:
    Badania symulacyjne pojazdu szynowego wyposażonego w sprężyny pneumatyczne RX-1965 i RX-1974 z zastosowaniem mikroprocesorowego sterowania wysokością sprężyny
    Simulation tests of the rail vehicle equipped with the air springs RX-1965 and RX-1974 with using a microprocessor control of the spring height
    Autorzy:
    Kaluba, Marian
    Bryk, Karol
    Łukaszewski, Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/34595970.pdf
    Data publikacji:
    2014
    Wydawca:
    Sieć Badawcza Łukasiewicz - Poznański Instytut Technologiczny
    Tematy:
    badania symulacyjne
    pojazd szynowy
    sprężyna pneumatyczna
    sterowanie mikroprocesorowe
    simulation tests
    rail vehicle
    pneumatic spring
    microprocessor control
    Opis:
    W artykule przedstawiono koncepcję oraz komputerowy model wybranych rozwiązań konstrukcyjnych pojazdu z zawieszeniem pneumatycznym aktywnie sterowanym. Zamodelowano dwie wersje sprężyn pneumatycznych (RX-1965, RX-1974) wraz z obciążającymi je masami i układem sterującym ich wysokością. Opracowano model pojazdu szynowego (wagon pomiarowy typu pasażerskiego) z zastosowaniem modeli w/w sprężyn pneumatycznych sterowanych przez układ mikroprocesorowy. Opracowany model wagonu pomiarowego umożliwia badania symulacyjne przypadków zdarzeń występujących w eksploatacji. Przeprowadzono wielowariantowe analizy symulacyjne: badania na prostych odcinkach toru, na łukach torowych zwichrowanych i z przechyłką oraz z zadaną wysokością podłogi pojazdu. Analizy dynamiczne przeprowadzono w systemie SIMPACK 9.5, który jest jednym z aktualnie wiodących systemów wykorzystywanych do symulacji zachowania dynamicznego pojazdów szynowych. Opracowany model wagonu pomiarowego umożliwiał badania symulacyjne przypadków zdarzeń występujących w eksploatacji.
    The paper presents the concept and the computer model of the selected constructional solutions of vehicle with the actively controlled air suspension. Two version of air springs (RX-1965, RX-1974) with the masses loading them and their height control system are modeled. The model of rail vehicle (measuring wagon of passenger type) is developed with using the models of the above mentioned air springs controlled by the microprocessor system. The developed model of the measuring wagon enable the simulation tests of the events that occur during exploitation. The multivariate simulation analysis are conducted: tests on the straight sections of track, on the twist and tilt track curves and with the set height of vehicle floor. The dynamic analyses are performed in SIMPACK 9.5 system, which is one of the current leading systems used to simulation of rail vehicles dynamic behavior. The developed model of measuring wagon enabled the simulation tests of the cases of events occurring during exploitation.
    Źródło:
    Rail Vehicles/Pojazdy Szynowe; 2014, 4; 41-46
    0138-0370
    2719-9630
    Pojawia się w:
    Rail Vehicles/Pojazdy Szynowe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Checkweigher using an EMFC weighing cell with magnetic springs and air-bearings
    Autorzy:
    Lee, Hyun-Ho
    Yoon, Kyung-Taek
    Choi, Young-Man
    Powiązania:
    https://bibliotekanauki.pl/articles/1849107.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    checkweigher
    magnetic spring
    electromagnetic force compensation
    Opis:
    A dynamic weighing system or a checkweigher is an automated inspection system that measures the weight of objects while transferring them between processes. In our previous study, we developed a new electromagnetic force compensation (EMFC) weighing cell using magnetic springs and air bearings. This weighing cell is free from flexure hinges which are vulnerable to shock and fatigue and also eliminates the resonance characteristics and implements a very low stiffness of only a few N/m due to the nature of the Halbach array magnetic spring. In this study, we implemented a checkweigher with the weighing cell including a loading and unloading conveyor to evaluate its dynamic weighing performances. The magnetic springs are optimized and re-designed to compensate for the weight of a weighing conveyor on the weighing cell. The checkweigher has a weighing repeatability of 23 mg (1σ) in static situation. Since there is no low-frequency resonance in our checkweigher that influences the dynamic weighing signal, we could measure the weight by using only a notch filter at high conveyor speeds. To determine the effective measurement time, a dynamic weighing process model is used. Finally, the proposed checkweigher meets Class XIII of OIML R51-1 of verification scale e 0.5 g at a conveyor speed of up to 2.7 m/s.
    Źródło:
    Metrology and Measurement Systems; 2021, 28, 3; 465-478
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Checkweigher using an EMFC weighing cell with magnetic springs and air-bearings
    Autorzy:
    Lee, Hyun-Ho
    Yoon, Kyung-Taek
    Choi, Young-Man
    Powiązania:
    https://bibliotekanauki.pl/articles/1849003.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    checkweigher
    magnetic spring
    electromagnetic force compensation
    Opis:
    A dynamic weighing system or a checkweigher is an automated inspection system that measures the weight of objects while transferring them between processes. In our previous study, we developed a new electromagnetic force compensation (EMFC) weighing cell using magnetic springs and air bearings. This weighing cell is free from flexure hinges which are vulnerable to shock and fatigue and also eliminates the resonance characteristics and implements a very low stiffness of only a few N/m due to the nature of the Halbach array magnetic spring. In this study, we implemented a checkweigher with the weighing cell including a loading and unloading conveyor to evaluate its dynamic weighing performances. The magnetic springs are optimized and re-designed to compensate for the weight of a weighing conveyor on the weighing cell. The checkweigher has a weighing repeatability of 23 mg (1σ) in static situation. Since there is no low-frequency resonance in our checkweigher that influences the dynamic weighing signal, we could measure the weight by using only a notch filter at high conveyor speeds. To determine the effective measurement time, a dynamic weighing process model is used. Finally, the proposed checkweigher meets Class XIII of OIML R51-1 of verification scale e 0.5 g at a conveyor speed of up to 2.7 m/s.
    Źródło:
    Metrology and Measurement Systems; 2021, 28, 3; 465-478
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Checkweigher using an EMFC weighing cell with magnetic springs and air-bearings
    Autorzy:
    Lee, Hyun-Ho
    Yoon, Kyung-Taek
    Choi, Young-Man
    Powiązania:
    https://bibliotekanauki.pl/articles/1849051.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    checkweigher
    magnetic spring
    electromagnetic force compensation
    Opis:
    A dynamic weighing system or a checkweigher is an automated inspection system that measures the weight of objects while transferring them between processes. In our previous study, we developed a new electromagnetic force compensation (EMFC) weighing cell using magnetic springs and air bearings. This weighing cell is free from flexure hinges which are vulnerable to shock and fatigue and also eliminates the resonance characteristics and implements a very low stiffness of only a few N/m due to the nature of the Halbach array magnetic spring. In this study, we implemented a checkweigher with the weighing cell including a loading and unloading conveyor to evaluate its dynamic weighing performances. The magnetic springs are optimized and re-designed to compensate for the weight of a weighing conveyor on the weighing cell. The checkweigher has a weighing repeatability of 23 mg (1σ) in static situation. Since there is no low-frequency resonance in our checkweigher that influences the dynamic weighing signal, we could measure the weight by using only a notch filter at high conveyor speeds. To determine the effective measurement time, a dynamic weighing process model is used. Finally, the proposed checkweigher meets Class XIII of OIML R51-1 of verification scale e 0.5 g at a conveyor speed of up to 2.7 m/s.
    Źródło:
    Metrology and Measurement Systems; 2021, 28, 3; 465-478
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Measurement of air springs volume using indirect method in the design of selected pneumatic devices
    Autorzy:
    Urbansky, M.
    Homišin, J.
    Kaššay, P.
    Krajňák, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/386269.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
    Tematy:
    air tank volume determination
    indirect method
    air pressure measurement
    Opis:
    At our department, we deal with continuous tuning of torsional oscillating mechanical systems (TOMS) during their operation in terms of torsional oscillation size. Therefore, a new mobile mechanical system was built for purposes of research and presentation of the TOMS continuous tuning using extremal control method, which main advantage is that we do not need to know a mathematical model of the mechanical system. The new mobile device is equipped with a special compressed air distribution system, which important components are air springs. The air springs are modified and used as air pressure tanks with various functions in the mobile device. Therefore, it is important to know the magnitude of the air springs inner volume. This paper deals with determination of air springs volume using indirect method, which is based on the air pressure measurement and also the comparison of obtained results with the results computed from air springs manufacturer data.
    Źródło:
    Acta Mechanica et Automatica; 2018, 12, 1; 19-22
    1898-4088
    2300-5319
    Pojawia się w:
    Acta Mechanica et Automatica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The dynamic characteristic and hysteresis effect of an air spring
    Autorzy:
    Locken, F.
    Welsch, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/264476.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    air springs
    dynamic characteristic
    transfer thermodynamic to mechanic
    dynamika pojazdu
    sprężyna powietrzna
    sprężyna gazowa
    Opis:
    In many applications of vibration technology, especially in chassis, air springs present a common alternative to steel spring concepts. A design-independent and therefore universal approach is presented to describe the dynamic characteristic of such springs. Differential and constitutive equations based on energy balances of the enclosed volume and the mountings are given to describe the nonlinear and dynamic characteristics. Therefore all parameters can be estimated directly from physical and geometrical properties, without parameter fitting. The numerically solved equations fit very well to measurements of a passenger car air spring. In a second step a simplification of this model leads to a pure mechanical equation. While in principle the same parameters are used, just an empirical correction of the effective heat transfer coefficient is needed to handle some simplification on this topic. Finally, a linearization of this equation leads to an analogous mechanical model that can be assembled from two common spring- and one dashpot elements in a specific arrangement. This transfer into ”mechanical language” enables a system description with a simple force-displacement law and a consideration of the nonobvious hysteresis and stiffness increase of an air spring from a mechanical point of view.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2015, 20, 1; 127-145
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    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
    Artykuł
      Wyświetlanie 1-10 z 10

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies