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Wyszukujesz frazę "kinematic simulation" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Kinematic simulation and numerical analysis of the suspension system of light wheeled vehicle
Autorzy:
Różyło, P.
Powiązania:
https://bibliotekanauki.pl/articles/243731.pdf
Data publikacji:
2014
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
finite element method
kinematic simulation
suspension
light wheeled vehicles
numerical analysis
Opis:
The paper presents the process of kinematic simulation and FEM numerical analysis of the suspension system of the light-wheeled vehicle. Fragment of the suspension system is a set of simple vibration damping mechanisms occurring in light-wheeled vehicles. The materials used for analysis is aluminum, steel and rubber characterized by properties hyperplastic. The suspension system has been subjected to the force generated from the substrate, resulting from the prevailing inequality terrain. Kinematic simulation made using CAD software enabled the mapping of the actual behaviour of the suspension with a simple steering mechanism, while passing at the characteristic curvilinear track. Numerical investigations have enabled the analysis of stress distribution in the structural elements while pointing out areas with the highest levels of stress reduced, designated by HMH hypothesis (Huber-Mises-Hencky). The FEM analysis used local and global density of the mesh through which highlighted the level of maximum stress concentration. Result of reduced stress distribution shown exactly on the complete form of the test model of a wheeled vehicle suspension. In the analysis of numerical models have been used elasto-plastic materials and hyperplastic available in the Abaqus. Calculations were carried out taking into account the issues of using geometrically nonlinear Newton-Raphson method.
Źródło:
Journal of KONES; 2014, 21, 1; 241-247
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The method of estimating kinematic road excitation with use of real suspension responses and model
Autorzy:
Klockiewicz, Zbyszko
Ślaski, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/127825.pdf
Data publikacji:
2019
Wydawca:
Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:
suspension
kinematic excitation
remote parameter control
simulation
PID controller
zawieszenie
wymuszenie kinematyczne
zdalna kontrola parametrów
symulacja
regulator PID
Opis:
The paper deals with the problem of vertical kinematic excitations in road vehicle dynamics simulation, with the main focus on reconstruction of random excitations using measured dynamic responses of a car suspension. The possibility of causing excitations adequately in terms of chosen conditions of exploitation and in reliable way is crucial to properly asses ride comfort, ride safety as well as rattle space and fatigue strength of suspension elements. The paper presents a method of generating equivalent kinematic excitation allowing for reconstruction of suspension dynamic responses in simulation. The method uses unsprung mass accelerations acquired during test rides and a model of vertical suspension dynamics. The method uses estimated displacements of unsprung mass as a preliminary approximation of kinematic excitation and tracking control system with a PID controller, which causes corrections of kinematic excitations transforming it to the form that allows for faithful reconstruction of unsprung mass accelerations and, in turn, kinematic excitations. The paper presents the basic structure of kinematic excitations’ reconstruction system as well as a method of tuning PID controller’s coefficients so that the error in estimation is minimized. Research and verification of results were done using a sine chirp signal and constant frequency sine waves. The similarity of estimated road profiles is high with error no larger than 8% of the original signal’s amplitude.
Źródło:
Vibrations in Physical Systems; 2019, 30, 2; 1-10
0860-6897
Pojawia się w:
Vibrations in Physical Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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