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Wyszukujesz frazę "Adam, Waldemar" wg kryterium: Autor


Tytuł:
Accuracy of the New Method of Alignment of Workpiece Using Structural-Light 3D Scanner
Autorzy:
Gessner, Andrzej
Ptaszyński, Wojciech
Adam, Waldemar
Powiązania:
https://bibliotekanauki.pl/articles/2022308.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
workpiece aligning
casting evaluation
optical measurement
marking out
Opis:
This paper presents a new method of aligning workpieces for machining by means of optical measurements followed by the results of verification tests of this method. The overview of modern assessment methods of irregularly shaped blanks are discussed in this study, with particular emphasis on cast iron castings, as well as on problems related to their positioning and fixing for machining. A flowchart of the proposed method and its verification results in industrial conditions are also presented. The essence of the method is based on the comparison of two spatial models: a designed workpiece model and the actual model of a casting produced with a coordinate measuring technique. A series of six iron castings were tested. The obtained results indicate that the errors caused by locating amounted to a maximum of 2 mm (average 0.5 mm) and were three times lower than actual machining allowances. This points to the correctness of the developed method and the great potential for its industrial application. Additionally, a method for improving locating accuracy by modifying the shape of the retaining pin is presented.
Źródło:
Advances in Science and Technology. Research Journal; 2022, 16, 1; 1-14
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of high-speed camera measurements for determination of energy losses generated in a vibrating belt of CVT transmission
Autorzy:
Łatas, Waldemar
Kot, Adam
Powiązania:
https://bibliotekanauki.pl/articles/27311437.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
continuously variable transmission
moving beam vibrations
high-speed camera
power losses
straty mocy
przekładnia bezstopniowa
kamera szybka
drgania belki sprężystej
Opis:
The paper presents a proposition of the theoretical-experimental method of determination of power losses in the transversely vibrating rubber V-belt of continuously variable transmission. The article comprises the results of experimental tests conducted on a special test stand with a complete scooter drivetrain powered by a small two-stroke internal combustion engine. Such a configuration allows ensuring real CVT working conditions. A high-speed camera was used for the contactless measurement of belt vibrations and time-lapse image analysis was performed in dedicated software. An axially moving Euler–Bernoulli beam was assumed as the mathematical model. Longitudinal vibrations and nonlinear effects were omitted. Additionally, it was assumed that the belt material behaves according to the Kelvin–Voigt rheological model. Analysis of the damped free vibrations of the cantilever beam, made of the belt segment, allowed to determine the equivalent bending damping coefficient. The CVT power losses, due to bending in the rubber transmission belt, were obtained for the fixed working conditions after numerical calculations. The proposed methodology is a new approach in this research area, which allows to obtain results impossible to achieve with other measurement methods.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2023, 71, 5; art. no. e146238
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
METODY WYCENY PROJEKTÓW ROZWIJAJĄCYCH INNOWACYJNE LEKI
VALUATION METHODOLOGIES OF A DRUG DISCOVERY PROJECTS – PART I ABSTRACT
Autorzy:
Mikołajewicz, Adam
Rogowski, Waldemar
Powiązania:
https://bibliotekanauki.pl/articles/953936.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Źródło:
Organization and Management; 2013, 157
0137-5466
Pojawia się w:
Organization and Management
Dostawca treści:
Biblioteka Nauki
Artykuł

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