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 "motion system" wg kryterium: Temat

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 70
Tytuł:
Earthquake early warning systems (EEWSs) and their applicability in modern research – a review
System wczesnego ostrzegania przed trzęsieniem ziemi (EEWS) i jego zastosowanie we współczesnych badaniach – przegląd
Autorzy:
Vijayan, D.S.
Sivasuriyan, A.
Parthiban, D.
Powiązania:
https://bibliotekanauki.pl/articles/28765726.pdf
Data publikacji:
2022
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
earthquake
earthquake prediction
earthquake early warning system
ground motion
tremor
natural disaster
Źródło:
Acta Scientiarum Polonorum. Architectura; 2022, 21, 4; 11-20
1644-0633
Pojawia się w:
Acta Scientiarum Polonorum. Architectura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Real time motion compensation technology based on least square support vector machine prediction
Autorzy:
Song, Zhehan
Feng, Huajun
Xu, Zhihai
Li, Qi
Powiązania:
https://bibliotekanauki.pl/articles/2086762.pdf
Data publikacji:
2022
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
motion compensation
motion prediction
dual-resolution camera system
least square support vector machine
Opis:
When cameras are used in aerial photography, satellite imaging or other scenes, the motion of the observational target causes image blur. The corresponding motion compensation systems often present some response delay. Thus, we introduce effective and fast motion prediction for the target to achieve steady real-time motion compensation. We first analyze the target motion states to propose a fast and robust prediction method based on the least square support vector machine algorithm. Then, we evaluate the performance between ours and other state-of-the-art methods through experiments. Experimental results confirm that the proposed method provides a fast and robust prediction for target motion. At last, we embed our method with dual-resolution camera system to perform high-quality motion compensation effect in real time.
Źródło:
Optica Applicata; 2022, 52, 2; 259--272
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stability of a Bomb with a Wind-Stabilised-Seeker
Stabilność bomby z układem śledzącym stabilizowanym przepływem
Autorzy:
Kowaleczko, Grzegorz
Klemba, Tomasz
Pietraszek, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/2135006.pdf
Data publikacji:
2022
Wydawca:
Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:
dynamic stability
laser-guided bombs
WSS-bomb system motion equations
stateczność dynamiczna
bomby sterowane laserowo
równania ruchu układu bomba-WSS
Opis:
The primary purpose of this article is to consider the main factors affecting the stability of a bomb with a Wind-Stabilised-Seeker (WSS). The article contains a full mathematical description of the bomb-WSS system motion. It allows you to calculate the spatial motion of the bomb and the motion of WSS in relation to the bomb. The method of calculating the aerodynamic forces is also described. The sample simulation results were presented and discussed. The equations of motion of the system were determined. They constituted the basis for the development of a computer program to simulate the motion of the system. Aerodynamic forces and moments were calculated using the Prodas software and based on the results of the bomb tests in the wind tunnel. The mass and geometrical data of the system relate to the tested prototype of an aerial bomb. The result of the research is a comprehensive assessment of the influence of the geometric parameters of the mobile tracking system on the dynamic stability of the bomb-WSS system. This knowledge is necessary for proper design of control laws based on the signals registered by the WSS. The main parameter influencing the WSS-bomb stability is the aerodynamic focus position of the tracking system. It should be behind the WSS attachment point. The position of the WSS centre of mass in relation to the attachment point also has an adverse effect on its stability. The length of the stick connecting the WSS with the bomb is irrelevant.
Podstawowym celem tego artykułu jest rozważenie głównych czynników wpływających na stabilność bomby z układem śledzącym stabilizowanym przepływem (WSS). Artykuł zawiera pełny opis matematyczny ruchu systemu bomba-WSS. Model ten został uzyskany z wykorzystaniem zasad mechaniki. Pozwala obliczyć ruch przestrzenny bomby i ruch WSS względem bomby. Sposób obliczania sił aerodynamicznych jest również opisany odpowiednimi wyrażeniami. Przedstawiono i omówiono przykładowe wyniki symulacji dotyczące wpływu geometrii układu na dynamikę jego ruchu. Równania ruchu układu zostały określone z wykorzystaniem praw mechaniki dotyczących układu wieloczłonowego. Stanowiły one podstawę do opracowania programu komputerowego do symulacji ruchu układu. Siły i momenty aerodynamiczne obliczono z wykorzystaniem oprogramowania Prodas oraz w oparciu o wyniki badań bomby w tunelu aerodynamicznym. Dane masowe i geometryczne układu dotyczą badanego prototypu bomby lotniczej. Wynikiem badań jest wszechstronna ocena wpływu parametrów geometrycznych ruchomego układu śledzącego na stateczność dynamiczną układu bomba-WSS. Wiedza ta jest niezbędna do właściwego zaprojektowania praw sterowania bazujących na sygnałach rejestrowanych przez WSS. Podstawowym parametrem wpływającym na stateczność dynamiczną układu jest położenie ogniska aerodynamicznego układu śledzącego. Powinien on znajdować się za punktem mocowania WSS do bomby. Położenie środka masy WSS względem punktu mocowania ma również niekorzystny wpływ na jego stateczność. Natomiast długość żerdzi łączącej WSS z bombą jest nieistotna.
Źródło:
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa; 2022, 13, 3 (49); 43--66
2081-5891
Pojawia się w:
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hand guiding a virtual robot using a force sensor
Autorzy:
Gregor, Radovan
Babinec, Andrej
Duchoň, František
Dobiš, Michal
Powiązania:
https://bibliotekanauki.pl/articles/2115861.pdf
Data publikacji:
2021
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
hand guidance
force torque sensor
motion planning
industrial robot
Robot Operating System
Opis:
The research behind this paper arose out of a need to use an open-source system that enables hand guiding of the robot effector using a force sensor. The paper deals with some existing solutions, including the solution based on the open-source framework Robot Operating System (ROS), in which the built-in motion planner MoveIt is used. The proposed concept of a hand-guiding system utilizes the output of the force–torque sensor mounted at the robot effector to obtain the desired motion, which is thereafter used for planning consequential motion trajectories. Some advantages and disadvantages of the built-in planner are discussed, and then the custom motion planning solution is proposed to overcome the identified drawbacks. Our planning algorithm uses polynomial interpolation and is suitable for continuous replanning of the consequential motion trajectories, which is necessary because the output from the sensor changes due to the hand action during robot motion. The resulting system is verified using a virtual robot in the ROS environment, which acts on the real Optoforce force–torque sensor HEX-70-CE-2000N. Furthermore, the workspace and the motion of the robot are restricted to a greater extent to achieve more realistic simulation.
Źródło:
Acta Mechanica et Automatica; 2021, 15, 3; 177--186
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model of the Motion of a Navigation Object in a Geocentric Coordinate System
Autorzy:
Džunda, M.
Powiązania:
https://bibliotekanauki.pl/articles/2063984.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
earth-centered
earth-fixed
Matlab
model of the motion
navigation object
geocentric coordinate system
air navigation
flight trajectory
flying objects
Opis:
In this paper we describe the creation of a model of the motion of a flying object in a geocentric coordinate system (ECEF - Earth-Centered, Earth-Fixed). Such a model can be used to investigate the accuracy and resistance of radio navigation systems to interference. The essence of the design of the model lies in the mathematical description of the motion of a flying object in a geocentric coordinate system. The flight trajectory of a flying object consists of one straight section and two turns. When creating a model, we assume a flight at a constant altitude. In this paper, we present one of the possible procedures for modelling the motion of a flying object in a geocentric coordinate system. We chose the initial coordinates of the flying object according to flightradar 24. We used the Matlab software for computer simulation.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 3; 791--794
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Psychological processes of perceiving implied motion in static images
Autorzy:
Khatin-Zadeh, Omid
Powiązania:
https://bibliotekanauki.pl/articles/2129924.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Static images
Implied motion
The motor system
Motion event
Opis:
The aim of this study was to investigate four sources of implied motion in static images (a moving object as the source of implied motion, hand movements of the image creator as the source of implied motion, past experiences of the observer as the source of implied motion, and fictive movement of a point across an image as the source of implied motion). In the experiment of the study, participants orally described 16 static images that appeared on the screen of a computer. The aim was to find whether participants had used any motion-related word to describe each image. It was assumed that using motion-related words to describe a static image was an indication that the image had created a sense of motion for the observer. These results indicated that all four types of implied motion could create a significant sense of motion for the observer. Based on these results, it is suggested that observing these images could lead to simulating the actions involved in those motion events and the activation of the motor system. Finally, it is proposed that the three characteristics of being rule-based (clearly-defined), continuous, and gradual are critical in perceiving that image as a fictive motion.
Źródło:
Polish Psychological Bulletin; 2021, 52, 4; 334-340
0079-2993
Pojawia się w:
Polish Psychological Bulletin
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the relationship between selected stability assessment indicators on the example of leaning out the human body from the upright position
Autorzy:
Matuszewska, Agata
Buśkiewicz, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/2146560.pdf
Data publikacji:
2020
Wydawca:
Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:
postural stability
extrapolated centre of mass
foot support polygon
motion analysis system
stabilność posturalna
ekstrapolowany środek masy
wielokąt podparcia
system analizy ruchu
Opis:
The objective of this paper is to study the margin of stability when trying to lean out the body forward and backward. The centre of mass of the body, the velocity of the centre of mass and extrapolated centre of mass were calculated for four participants. The analyzed movement was recorded by using BTS Motion Capture system. Recordings, in which participants were unable to return to the upright position, were also observed. In these cases, it was verified the usefulness of extrapolated centre of mass for predicting the foot support area that enables maintaining the body balance. The relationship between the applied stability indicators and anthropometric parameters was determined. The preliminary results obtained confirm the validity of the use of selected parameters in tests and in assessment of the stability of the human body, and indicate the directions of further tests for a larger group of participants and other movement activities.
Źródło:
Vibrations in Physical Systems; 2020, 31, 2; art. no. 2020219
0860-6897
Pojawia się w:
Vibrations in Physical Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prediction control systems in marine applications
Autorzy:
Gierusz, W.
Miller, A.
Powiązania:
https://bibliotekanauki.pl/articles/117282.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
control system
marine applications
ship motion
automatic system
Model Predictive Control (MPC)
multiple input
Multiple Output (MIMO)
Model Predictive Heuristic Control (MPHC)
Generalized Predictive Control (GPC)
Opis:
The paper presents one of the modern control methods used for steering of the ship motion. The different automatic systems used to navigate the vessels are described at the beginning. Next, prediction control methodology is presented and multidimensional MPC regulator applied to steering of the training ship is shown as a technical product. Tests results from the real-time experiments with the mentioned controller are presented at the end of the article.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 2; 361-366
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The assessment of the impact of a training process on the habituation of the vestibular-vegetative system, using a special rotational test as a condition of maintaining flight safety
Autorzy:
Wochyński, Zbigniew
Krawczyk, Piotr
Cur, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/2116592.pdf
Data publikacji:
2020-06-16
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
space motion sickness
special aviation gymnastic instruments
test on the unlocked looping
vestibular-vegetative system
training process
Coriolis effect
Opis:
ObjectivesThe authors formulated a hypothesis that, on completion of the training program by cadets, their vestibular habituation would increase, measured by the time of the duration of the test on the unlocked looping, in contrast to the initial values and the control group.Material and MethodsThe research involved 35 male cadets, first-year students of the Polish Air Force Academy in Dęblin. The examined persons were on average 20 years of age. They were divided into 2 groups. Group A (N = 25, tested) continued training on Special Aviation Gymnastic Instruments (SAGI). The cadets were a homogeneous group of participants in the jet pilot course, selected by the Military Aeromedical Board. Group B (N = 10, control) conducted the standard physical military education program. Groups A and B were tested on the unlocked looping before and after the training process. In the training process, the groups had heart rate (HR) monitored.ResultsThe cadets in group A on the test in the unlocked looping, at the beginning of the training period, had an average score of 468.5±96.6 s, and on completion of the training period 575.6±47.9 s, which is a statistically significant difference at p < 0.000001. Similarly, the examined individuals in group B received an average score of 396.2±31.8 s, and at the end of the training period 473.4±72.0 s, which is a statistically significant difference at p < 0.01. In group A, a statistically significant decrease in the average HR value was observed. In group B, there was a statistically significant increase in the average HR value.ConclusionsThe exercises on SAGI have a beneficial impact on improving the habituation of the vestibular organ in training cadets in examination II, as opposed to examination I and the control group.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2020, 33, 4; 497-506
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Waypoint path controller for ships
Autorzy:
Tomera, M.
Alfuth, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/117436.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
control system
waypoint
waypoint path controller
silm lake
ship handling research and training centre at Ilawa
Polska
blue lady
control algorithm
ship motion control
Opis:
The paper presents and discusses tests of a waypoint controller used to sail a ship along the desired route. The planned desired route for the moving ship is given as a set of waypoints connected with straight lines. The ship's control is based on the rudder blade deflection angle as a commanded parameter. The task of the controller is to determine the rudder angle which will allow the ship to sail along the desired route segment. The controller algorithm consists of two parts, the first of which is used for controlling the ship motion along linear segments of the desired route, while the second part is used when changing to the next route segment. A switching mechanism is designed to choose the relevant part of the control algorithm. The quality of operation of the ship motion control algorithm was tested on the training ship Blue Lady, at the Ship Handling Research and Training Centre located on the lake Silm at Kamionka near Iława, Poland.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 2; 375-383
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An inverse kinematic model of the human training centrifuge motion simulator
Autorzy:
Lewkowicz, Rafał
Kowaleczko, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/281359.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
inverse kinematic
simulator
centrifuge
motion system
Opis:
The paper presents an inverse kinematic model for a centrifuge motion simulator used to verify newly defined absolute acceleration profiles. The modelling is concerned with a human training centrifuge with three degrees of freedom. The values of kinematic parameters have been obtained for this three-jointed manipulator. Validation of the developed model has been performed by comparing the results obtained from the centrifuge motion simulator with the results of numerical simulations. The simulation revealed that the inverse kinematic model enabled calculation of the angular displacement, velocity and acceleration of the links that are needed for the given linear acceleration of the simulator cabin.
Źródło:
Journal of Theoretical and Applied Mechanics; 2019, 57, 1; 99-113
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamic load of linear guiding systems in handling machines
Autorzy:
Jírová, Radka
Pešík, Lubomír
Powiązania:
https://bibliotekanauki.pl/articles/197727.pdf
Data publikacji:
2019
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
linear guiding system
dynamic load
2D motion
system prowadzenia liniowego
obciążenia dynamiczne
ruch 2D
Opis:
Linear guiding systems are used in machines for relative translational motion of components, especially for handling devices, which are the basis of production lines. In these operating conditions, the linear guiding systems are dynamically loaded. Dynamical influences may lead to the decrease and damage of bearings. The aim of this paper was to calculate dynamical influences of a mass inertia on linear guiding systems. This issue was solved by a numerical calculation of differential motion equations in 2D. The motion was calculated on an example of a handling machine for welding car bodies. The result is a percentage representation of the dynamic forces on the total load of the linear guiding systems. The result shows the percentage representation in the solved case as more than 10%.
Źródło:
Zeszyty Naukowe. Transport / Politechnika Śląska; 2019, 103; 31-41
0209-3324
2450-1549
Pojawia się w:
Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Smart tachografy – różnice i ich możliwości
Smart tachographs - differences and possibilities
Autorzy:
Kubas, Kamila
Powiązania:
https://bibliotekanauki.pl/articles/1194488.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
smart tachografy
IV generacja
system GNSS
system DSRC
czujnik ruchu KITAS 4.0
smart tachographs
IV generation
GNSS interface
DSRC interface
KITAS 4.0 motion sensor
Opis:
From 15th of June 2019 the law about new IV generation tachographs system came into force. Smart tachographs should upgrade a quality of roads controls and make new possibilities of managing data by fleets management. It stemmed from the fact that in IV generation is using DSRC interface, which allow to remote control, GNSS interface which use satellites to find vehicle position and ITS interface, which is compatibility with most of fleet management systems. In the article are describe another opportunities of smart tachographs. The article includes a part of tachographs history and some regulations to better present reasons why this equipment has to be changed.
Źródło:
Journal of TransLogistics; 2019, 5, 1; 95-103
2450-5870
Pojawia się w:
Journal of TransLogistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie systemu analizy ruchu BTS do określenia chwili utraty stabilności
Application of motion capture system to assess human stability loss
Autorzy:
Matuszewska, Agata
Liszkowski, Jakub
Walczak, Tomasz
Buśkiewicz, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/2201473.pdf
Data publikacji:
2019
Wydawca:
Politechnika Śląska. Katedra Biomechatroniki
Tematy:
stabilność
równowaga
siły reakcji podłoża
system analizy ruchu
ryzyko upadku
stability
balance
ground reaction forces
motion analysis system
fall risk
Opis:
W pracy przeprowadzono próbę wyznaczenia chwili utraty stabilności dla upadków z pozycji statycznej. Pozycją początkową, jaką przyjmowała osoba badana, było stanie na dwóch nogach z rękami wzdłuż tułowia. Rejestracji ruchu dokonano dzięki wykorzystaniu systemu BTS. W celu wyznaczenia chwili utraty stabilności zaproponowano i opracowano własne miary i parametry, bazujące na pomiarach wykonanych z użyciem platform dynamometrycznych oraz systemu analizy ruchu. Dla analizowanego przypadku ruchu wielkości te pozwoliły na szacunkowe wyznaczenie chwili utraty stabilności.
Assessing of human stability loss was performed at this work in case of falls from a static position. At the beginning patient takes the starting position as standing on two legs with hands along the thorax. Human motion registration was performed by using BTS system. In order to determine the instant of human stability loss the new measures and parameters were proposed, which based on measurements from force platforms and motion analysis system. These parameters allowed to assess the instant of stability loss for analyzed motion.
Źródło:
Aktualne Problemy Biomechaniki; 2019, 17; 69--76
1898-763X
Pojawia się w:
Aktualne Problemy Biomechaniki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A robust smooth controller for a unicycle-like robot
Autorzy:
Pazderski, D.
Powiązania:
https://bibliotekanauki.pl/articles/229667.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
transverse functions
nonholonomic system
control motion task
Lie group
navigation vector fields
smooth feedbacks
Opis:
In this paper, a stabilizer dedicated for a unicycle-like robot is considered. The proposed smooth control law ensures the global boundedness of position and orientation trajectories to a neighbourhood of the desired point with an arbitrarily selected radius and it is robust to bounded additive measurement noises. The controller consists of a smooth hybrid navigation algorithm and a smooth feedback based on the transverse function approach. The stability proof, simulation and experimental results illustrating properties of the algorithm are discussed.
Źródło:
Archives of Control Sciences; 2018, 28, 1; 155-183
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 70

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