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Wyszukujesz frazę "model scale" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Development of model for testing of driving properties
Autorzy:
Brabec, P.
Maly, M.
Vozenilek, R.
Powiązania:
https://bibliotekanauki.pl/articles/243366.pdf
Data publikacji:
2007
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
4WS
Four-Wheel Steering
Scale car model
Opis:
Technical University of Liberec prepares a functional car model with a four-wheel steering in a reduced scale (1:5). For years, reduced scale models have been a valuable tool (especially in the aircraft and ship industry) for analyses of properties and experimenting. Consequently, experiments, which would be otherwise unrealistic, can be made, the system functionality can be verified and the impact of slight changes and design modifications can be analysed. All of this within a relatively short period of time and at low costs. The paper presents the application of a reduced scale car model for the 4WS (Four-Wheel Steering) system development and practical assignment necessary for set up. Also shows the use of individual components for functional implementation of this system. The 4WS system pursues the target of enhanced overtaking stability, elimination of positional variances towards its vertical axis, lower sensitivity to side wind, neutral cornering behaviour etc., thus higher active safety. On the basis of results of driving tests of the scale model and after evaluation of parameters of steering behaviour and driving stability, the computer simulation model of the vehicle could be refined. The reduced scale vehicle model, equipped with the respective sensors of quantities and actuating units, allows carrying out driving tests under laboratory conditions, verification and possible optimisation of algorithms for the control of direction steering of the model is presented in the paper.
Źródło:
Journal of KONES; 2007, 14, 3; 109-115
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Braking moment comparison and analysis for various brake designs using results from sample and full scale friction material tests
Autorzy:
Skorupka, Z.
Powiązania:
https://bibliotekanauki.pl/articles/242444.pdf
Data publikacji:
2013
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
transport
motor vehicle
brake
brake design
brake tests
full scale tests
model tests
friction material
Opis:
Brake is one of the most important safety feature in every mechanical vehicle from bikes to airplanes. Brakes have to be designed in order to meet safety, reliability, efficiency and economical requirements. One has to remember that not only design of brake is important but also friction material used in its construction. Without proper materials, brakes are not able to generate proper braking moment. Braking moment is the most important parameter of brake from operation point of view. It is directly connected to braking distance as well with amount of force needed to achieve assumed braking parameters for the mechanical vehicle. Stability of braking moment is important in order to get optimized characteristics of the braking process itself. Most of the brake characteristics and efficiency calculations base on assumption that braking moment should be stable during braking process. During years of tests made on full scale brakes and friction material sample tests, author observed that real braking moment curve is not stable during braking process. This phenomenon is likely to affect braking efficiency and in result slightly change braking distance. In this paper author would like to address this issue by showing brake moment curves made for different brakes and friction materials. Tests, which were author’s base for paper contents, were made using full scale brake testing and friction material sample testing. All of the tests described in the paper were performed in Landing Gear Laboratory of Warsaw Institute of Aviation in which author works on daily basis
Źródło:
Journal of KONES; 2013, 20, 1; 303-308
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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