Wyniki wyszukiwania - BazTech

1

Komputerowe wspomaganie procesu projektowania i obliczeń układów obciążających do prób statycznych statków powietrznych

Kachel S., Jarzębiński L., Łącki T.

Mechanik

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2016

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R. 89, nr 7

710--711

PL

W pracy przedstawiono sposób wykorzystania systemów CAD i oprogramowania MS Excel do wspomagania procesu projektowania układów wprowadzających obciążenia w konstrukcje samolotów podczas realizacji prób statycznych. Omówiono możliwości, jakie uzyskano dzięki częściowej automatyzacji procesu projektowania. Zaprezentowano układy wykonane na podstawie takiego procesu.

EN

In the paper computer aided design and calculation process was described. Siemens NX and MS Excell software were used to improve design of the riffle trees for full scale static tests. Benefits from automatisation of the design process were discussed. Manufactured riffle trees assembly was presented on the plane during preparation for the test.

2

Coordinate measuring machine uncertainty analysis using the combinatorial cyclic method of optimization

Ziętarski S., Kachel S., Benaouali A.

Mechanik

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2016

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R. 89, nr 7

876--877

EN

In this paper, The Combinatorial-Cyclic method of Optimization (CCOpt) is used to inspect the accuracy of a CMM by analyzing the standard deviation of measurements points on a calibration sphere. A software dedicated to perform sphere fitting and error analysis were developed within the frame of the integrated CAD/CAM/CAE system SIEMENS (GRIP).

PL

W niniejszym artykule zaprezentowano kombinatoryczno-cykliczną metodę optymalizacji, która została wykorzystana do sprawdzenia dokładności maszyny współrzędnościowej poprzez analizę odchylenia standardowego punktów pomiarowych na kuli wzorcowej. Opracowane oprogramowanie dla systemu CAD/CAM/CAE Siemens NX jest przeznaczone do porównywania wzorca z obiektem rzeczywistym celem przeprowadzenia analizy błędów wykonania elementu rzeczywistego.

3

Analysis of z-axis kinematics influence on measurement result

Gruza M., Harmatys W, Gąska P., Gąska A., Sładek J.

Advances in Science and Technology. Research Journal

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2015

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Vol. 9, nr 26

109–-112

EN

CMMs accuracy depend on a number of factors. In spite of using various methods for CMM correction, the differences can be observed in the metrological capability be¬tween the areas in the measuring volume of CMM. Authors attempted to estimate the impact of one of potential CMM accuracy influencing factors, a CMM Z-axis position during measurement, on measurement result. This article presents performed experi¬ments and obtained results.

4

The influence of fitting algorithm and scanning speed on roundness error for 50 mm standard ring measurement using CMM

Salah Hamed R. A.

Metrology and Measurement Systems

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2008

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Vol. 15, nr 1

33-53

EN

Coordinate Measuring Machines (CMM) become one of the main requirements in precision engineering for advanced industries, troubleshooting and scientific facilities. CMM data analysis software can contribute significantly to the total measurement errors. The error characteristics in the CMM software are very important from the metrological point of view to find an optimum fitting solution. The final accuracy of a work piece is influenced by many different factors. In this paper, the fitting software methods and styles touch probe scanning speed factors for three different transverse circles of roundness measurement errors are studied experimentally and discussed in details. The tests have been performed to examine the problem of how to generate reference data sets for cylinder circle measurements. Some error formula have been postulated to correlate the roundness measurements within application range. These reference data sets are presented to help the CMM designer and operator to get the best fit for roundness measurements.