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Wyszukujesz frazę "Opasiak, Tadeusz" wg kryterium: Autor


Wyświetlanie 1-4 z 4
Tytuł:
Numerical investigations on the dynamic behaviour of a 2-DOF airfoil with application in energy harvesting system
Autorzy:
Haniszewski, Tomasz
Gąska, Damian
Margielewicz, Jerzy
Opasiak, Tadeusz
Powiązania:
https://bibliotekanauki.pl/articles/27311332.pdf
Data publikacji:
2023
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
airfoil
simulation
energy harvesting
piezo element
microcontroller
panel
symulacja
pozyskiwanie energii
element piezoelektryczny
mikrokontroler
Opis:
This article presents the basic airfoil model with two degrees of freedom - the semi-rigid model, where its forced vibrations were considered, and the exciting force is the aerodynamic force, including its periodic changes, that is, gusts. Since the phenomenological model under study has a coupled form, its versions after decoupling are presented, which has an impact on the results of the final research. The airfoil model presented in this way was shown from the application side in the system of a simple energy harvester based on a deformable beam with piezoelectric elements. The result of the simulation tests is a preliminary analysis of the possibility of using the airfoil as a vibration generator for the energy harvesting system. Along with the application of the mechanical part, a numerical simulation of the electrical part was also implemented, related to the transformation of the voltage generated by piezoelectric elements into a constant voltage signal with a connected receiver with power consumption similar to the Atmega microcontroller with battery charging.
Źródło:
Zeszyty Naukowe. Transport / Politechnika Śląska; 2023, 118; 77--91
0209-3324
2450-1549
Pojawia się w:
Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of changes in the working temperature of flexible couplings on their stiffness characteristics
Autorzy:
Opasiak, Tadeusz
Margielewicz, Jerzy
Gąska, Damian
Haniszewski, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/2203862.pdf
Data publikacji:
2022
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
flexible coupling
dynamic characteristic
sprzęgło elastyczne
charakterystyka dynamiczna
Opis:
This article compares flexible couplings of the spider-type insert, and the tiretype insert. The influences of the volume and hardness of the elastomeric connector on the characteristics of this type of coupling, as well as the course of the change of the stiffness coefficient as a result of changes in the operating temperature, are presented. In drive systems, flexible couplings undergo very frequent changes within a wide range of operating temperatures, which causes a change in the dynamic parameters of the flexible couplings during operation.
Źródło:
Transport Problems; 2022, 17, 4; 177--186
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rollers for belt conveyors in terms of rotation resistance and energy efficiency
Autorzy:
Opasiak, Tadeusz
Margielewicz, Jerzy
Gąska, Damian
Haniszewski, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/2203884.pdf
Data publikacji:
2022
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
belt conveyor
roller
motion resistance
przenośnik taśmowy
wałek
opór ruchu
Opis:
The paper shows the results of researching the rollers used in belt conveyors working in a hard coal mine. Rollers should be characterized by low rotation resistance, which results in low power consumption of the propulsion unit. The tests conducted aimed to assess the technical condition of the new C-type rollers after several years of operation in a hard coal mine. The research was carried out from the new approach to the standard issues of roll testing and verification in a hard coal mine. Laboratory tests were combined with testing the entire belt conveyor in terms of power demand. The research was carried out for 3 years and it was monitored how the dynamic resistance of the working rollers changed and how this translates into the power demand consumed by the belt conveyor in a hard coal mine. The aim of the research was a new approach to the research of rollers used in conveyors operating in a mine.
Źródło:
Transport Problems; 2022, 17, 2; 57--68
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New crane bumper design with an energy absorption device system
Autorzy:
Haniszewski, Tomasz
Margielewicz, Jerzy
Gąska, Damian
Opasiak, Tadeusz
Powiązania:
https://bibliotekanauki.pl/articles/2203900.pdf
Data publikacji:
2022
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
simulation
Matlab
crane
dynamics
spring pendulum
symulacja
dźwig
dynamika
wahadło sprężynowe
Opis:
This article presents research carried out using physical data from the experimental construction of an overhead crane. This article aims to determine the dynamic behaviour of the cart-pendulum system when the hoisting mechanism hits the new bumper design at the end of the girder support structure with selected speed and bumper material to the length of the wire rope. This research shows the influence of the horizontal speed of the hoisting mechanism on the bumper force during a collision with a standard buffer and its modifications. The presented model can be the basis for modelling more complex cases, and its assumed role (i.e. the ability to determine the angle of deflection of the rope during an impact) has been confirmed and is possible to use in a specific case of an overhead crane on an industrial scale. Preliminary analysis of the construction of the bumper considered reveals its positive features, aiming, among other goals, to reduce the acceleration and force acting on the crane cart in emergency situations.
Źródło:
Transport Problems; 2022, 17, 3; 5--16
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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