Temat: kinematic simulation - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: A kinematic method for the assessment of the safe parameters of a waterway bend
Autorzy:: Dzwonkowski, J.
Przywarty, M.
Bilewski, M.
Powiązania:: https://bibliotekanauki.pl/articles/135435.pdf
Data publikacji:: 2018
Wydawca:: Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:: kinematic method
safe parameters
waterway
simulation model
physically paths
simulation
Opis:: This paper presents an original kinematic method for the assessment of the safe parameters of waterway bends. The proposed method has been based on the analysis of the results obtained through the use of the developed simulation model which allowed for the examination of all the physically available paths of a ship’s centre of gravity. The results of the simulation were divided into defined subsets that enabled the assessment of the safe parameters of waterway bends. This paper also presents the calculations that were carried out for the theoretical reference bend.
Źródło:: Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2018, 53 (125); 106-113
1733-8670
2392-0378
Pojawia się w:: Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

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

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