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Wyszukujesz frazę "Sanyal, S." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
An investigation of stresses and deformation states of clamped rotating functionally graded disks
Autorzy:
Thawait, A. K.
Sondhi, L.
Sanyal, S.
Bhowmick, S.
Powiązania:
https://bibliotekanauki.pl/articles/281806.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
functionally graded material (FGM)
linear elastic analysis
annular rotating disk
variable thickness rotating disk
finite element method (FEM)
Opis:
The present study deals with the linear elastic analysis of variable thickness rotating disks made of functionally graded materials (FGMs) by the finite element method. The disks have radially varying material properties according to an exponential law, which is achieved by the element based grading of the material properties on the meshed domain. The results are reported for three types of thickness profiles, namely, uniform, linearly varying and concave thickness, having their mass constant. The disks are subjected to the clamped boundary condition at the inner surface and the free boundary condition at the outer surface. The obtained results show that in a variable thickness rotating disk, deformation and stresses are less as compared to the uniform thickness disk.
Źródło:
Journal of Theoretical and Applied Mechanics; 2017, 55, 1; 189-198
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Behavior based co-ordination of a troop of vehicles targeted to different goals in an unknown environment
Autorzy:
Sanyal, S.
Barai, R. K.
Chakrabarti, R.
Chattopadhyay, P. K.
Powiązania:
https://bibliotekanauki.pl/articles/384928.pdf
Data publikacji:
2012
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
behavior-based collision avoidance
randomized obstacles
multi-vehicle coordination
paricle swarm optimization
Opis:
The issue of coordinated operation of multi-vehicle for a variety of tasks is getting increasing attention day by day and standing as a major research field due to their increased capacity and flexibility they can offer as a team. This paper presents a novel algorithm for multi-vehicle navigation, based on exhaustive search to avoid a set of randomly generated obstacles, predict the approximate position of other vehicles and thus keeping a safe distance to avoid collision and to maintain a formation amongst them while targeted towards the assigned goals. The proposed algorithm uses two optimizing functions in deriving drive commands, direction and turning, for a troop of vehicles. This particular algorithm is similar to the artificial potential field (APF) method which is widely used for autonomous mobile robot path planning due to its simplicity and mathematical elegance. In this work we have taken a behavior based reactive scheme together with artificially generated perturbation as the vehicles are running in a real time environment. Simulations have been carried out for a group of four vehicles, paired in two groups, approaching two different targets avoiding eight randomly generated obstacles, and keeping proper coordination between the members of intra and inter groups. The effectiveness of the proposed approach has been shown by some simulation results.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2012, 6, 4; 20-26
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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