Temat: trajectory calculation

Skocz do pozycji: 1.

Tytuł:: Mathematical simulation of gas bubble moving in central region of the short vortex chamber
Мatematicheskoe modelirovanie dvizhenija gazovogo puzyr'ka v central'nojj oblasti korotkojj vikhrevojj kamery
Autorzy:: Syomin, D.
Rogovyi, A.
Tematy:: gas bubble
dropping liquid
transportation
angular velocity
vortex chamber
mathematical simulation
trajectory calculation; Pokaż więcej
Wydawca:: Komisja Motoryzacji i Energetyki Rolnictwa
Powiązania:: https://bibliotekanauki.pl/articles/792750.pdf Link otwiera się w nowym oknie
Dostawca treści:: Biblioteka Nauki

Artykuł

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Skocz do pozycji: 2.

Tytuł:: Fast and smooth trajectory planning for a class of linear systems based on parameter and constraint reduction
Autorzy:: Liu, Guangyu
Wu, Shangliang
Zhu, Ling
Wang, Jiajun
Lv, Qiang
Tematy:: constraint reduction
parameter reduction
fast calculation
trajectory planning
redukcja ograniczeń
redukcja parametrów
szybka kalkulacja
planowanie trajektorii; Pokaż więcej
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Powiązania:: https://bibliotekanauki.pl/articles/2055148.pdf Link otwiera się w nowym oknie
Opis:: Fast and smooth trajectory planning is crucial for modern control systems, e.g., missiles, aircraft, robots and AGVs. However, classical spline based trajectory planning tools introduce redundant constraints and parameters, leading to high costs of computation and complicating fast and smooth execution of trajectory planning tasks. A new tool is proposed that employs truncated power functions to annihilate some constraints and reduce the number of parameters in the optimal model. It enables solving a simplified optimal problem in a shorter time while keeping the trajectory sufficiently smooth. With an engineering background, our case studies show that the proposed method has advantages over other solutions. It is promising in regard to the demanding tasks of trajectory planning.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Fluidized bed in gravitational shelf dryers: optimization calculation
Autorzy:: Artyukhova, Nadiia
Krmela, Jan
Krmelová, Vladimíra
Artyukhov, Artem
Gavendová, Mária
Tematy:: multistage gravitational shelf dryer
fluidized bed
hydrodynamics
motion trajectory
simulation of engineering calculation
wielostopniowa grawitacyjna suszarka półkowa
łóżko wodne
hydrodynamika
trajektoria ruchu
symulacja obliczeń inżynierskich; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2128168.pdf Link otwiera się w nowym oknie
Opis:: The article deals with studying the hydrodynamic characteristics of the fluidized bed in gravitation shelf dryers. The algorithm to calculate hydrodynamic characteristics of the fluidized bed in the dryer’s workspace is described. Every block of the algorithm has a primary hydrodynamic characteristics theoretical model of calculation. Principles of disperse phase motion in various areas in the gravitation shelf dryer are established. The software realization of the author’s mathematic model to calculate disperse phase motion trajectory in a free and constrained regime, disperse phase residence time in the dryers’ workspace, polydisperse systems classification is proposed in the study. Calculations of disperse phase motion hydrodynamic characteristics using the software product ANSYS CFX, based on the author’s mathematic model, are presented in the article. The software product enables automating calculation simultaneously by several optimization criteria and visualizing calculation results in the form of 3D images. The disperse phase flow velocity fields are obtained; principles of a wide fraction of the disperse phase distribution in the workspace of the shelf dryer are fixed. The way to define disperse phase residence time91 in the workspace of the shelf dryer in free (without consideration of cooperation with other particles and dryer’s elements) and con-strained motion regimes is proposed in the research. The calculation results make a base for the optimal choice of the gravitation shelf dryer working chamber sizes.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 4.

Tytuł:: Fluidized bed in gravitational shelf dryers: optimization calculation
Autorzy:: Artyukhova, Nadiia
Krmela, Jan
Krmelová, Vladimíra
Artyukhov, Artem
Gavendová, Mária
Tematy:: multistage gravitational shelf dryer
fluidized bed
hydrodynamics
motion trajectory
simulation of engineering calculation
wielostopniowa grawitacyjna suszarka półkowa
łóżko wodne
hydrodynamika
trajektoria ruchu
symulacja obliczeń inżynierskich; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2173631.pdf Link otwiera się w nowym oknie
Opis:: The article deals with studying the hydrodynamic characteristics of the fluidized bed in gravitation shelf dryers. The algorithm to calculate hydrodynamic characteristics of the fluidized bed in the dryer’s workspace is described. Every block of the algorithm has a primary hydrodynamic characteristics theoretical model of calculation. Principles of disperse phase motion in various areas in the gravitation shelf dryer are established. The software realization of the author’s mathematic model to calculate disperse phase motion trajectory in a free and constrained regime, disperse phase residence time in the dryers’ workspace, polydisperse systems classification is proposed in the study. Calculations of disperse phase motion hydrodynamic characteristics using the software product ANSYS CFX, based on the author’s mathematic model, are presented in the article. The software product enables automating calculation simultaneously by several optimization criteria and visualizing calculation results in the form of 3D images. The disperse phase flow velocity fields are obtained; principles of a wide fraction of the disperse phase distribution in the workspace of the shelf dryer are fixed. The way to define disperse phase residence time91 in the workspace of the shelf dryer in free (without consideration of cooperation with other particles and dryer’s elements) and con-strained motion regimes is proposed in the research. The calculation results make a base for the optimal choice of the gravitation shelf dryer working chamber sizes.
Dostawca treści:: Biblioteka Nauki

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