Autor: Wójcikowski, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: FEM analysis and experimental tests of rigid riser hanging system
Autorzy:: Olszewski, A.
Wodtke, M.
Wójcikowski, A.
Powiązania:: https://bibliotekanauki.pl/articles/259405.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: offshore engineering
riser hanging system
FEM simulation
experimental tests
Opis:: The article presents the analysis, project, and experimental examination of an original rigid riser for Coil Tubing Pipes. The principle of riser operation is based on the use of friction forces. The research included the FEM analysis of the designed riser, calculations of the required bolt tensions, and checking the effect of the clamping force on stress distribution in the pipeline. The results of computer simulation were verified on a specially designed test rig. The described riser design was implemented on the LOTOS Petrobaltic platform, thus eliminating the need for purchase and installation of expensive elastic risers.
Źródło:: Polish Maritime Research; 2018, 2; 108-115
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: FEM calculations in analysis of steel subsea water injection flowlines designing process
Autorzy:: Wodtke, M.
Olszewski, A.
Wójcikowski, A.
Powiązania:: https://bibliotekanauki.pl/articles/259856.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: offshore engineering
water injection flowlines analysis
FEM simulation
Opis:: The article describes the result of theoretical research aimed at assessing the loads and operating conditions of a Coiled Tubing pipeline injecting water, suspended to the mining platform of Lotos Petrobaltic. For this purpose, appropriate calculation models have been developed using the Finite Element Method (FEM), taking into account the nature of the analyzed object and its loads. The analyzes were carried out for two pipes (previously operated and newly proposed) differing in geometrical and strength parameters. The research was carried out for selected directions of load on the pipeline (originating from sea waves) and various variants of attaching the suspended pipeline to the mining platform.
Źródło:: Polish Maritime Research; 2018, 3; 84-93
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Vision-based parking lot occupancy evaluation system using 2D separable discrete wavelet transform
Autorzy:: Kłosowski, M.
Wójcikowski, M.
Czyżewski, A.
Powiązania:: https://bibliotekanauki.pl/articles/201876.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: computer vision
discrete wavelet transform
sensor system
sensor application
wizja komputerowa
czujnik
dyskretna transformata falkowa
Opis:: A simple system for rough estimation of the occupancy of an ad-hoc organized parking lot is presented. A reasonably simple microprocessor hardware with a low resolution monochrome video camera observing the parking lot from the location high above the parking surface is capable of running the proposed 2-D separable discrete wavelet transform (DWT)-based algorithm, reporting the percentage of the observed parking area occupied by cars. A simple calibration is needed – the mask covering all the areas outside the parking lot must be prepared. The proposed system has been tested on the dedicated FPGA-based hardware in real conditions and proven immune to scene and light changes. As it is discussed in the paper, it can be used in low-power wireless sensor networks.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2015, 63, 3; 569--573
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

Artykuł

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