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Investigations of dynamic phenomena of precision length measurement system

100%

Svilainis P. , Kavaliauskas V. , Kilikevičius A. , Matijošius J. , Więckowski D.

tom Vol. 89, nr 3

51--59

The development of the automotive industry is conditioned by the application of production technologies, which directly depend on production volumes. Today's development of car production is possible only in conjunction with the volume of production, ensuring both the parameters of assembly and production quality. Their constant monitoring is related to the application of the verification tools and technologies used. Such is the length measurement process that needs to be precise in the automotive industry. The paper analyzes the precision length measurement system and its dynamic characteristics. The research is applied to solve the problems of dynamic processes of a precision length measuring system, and the obtained results can be used in the development of precision systems for other purposes. The obtained results describe the vibrations of the length measuring system housing and the measuring head, which show the weak points of the system at the respective frequencies. The paper analyzes the precision length measurement system and its dynamic characteristics. The obtained results describe the vibrations of the length measuring system housing and the measuring head, which show the weak points of the system at the respective frequencies.

Material model and revealing the truth

67%

Czarnecki L. , Sokołowska J. J.

tom Vol. 63, nr 1

7--14

The paper refers to the approach used in science, specifically in building materials engineering, assuming the possibility of material modeling, including modeling of the technical characteristics of building materials of various compositions as well as modeling phenomena/processes that occur during the use of materials and structures made from them. The authors analyze the merits of the approach of modeling in the context of compliance computational models to reality, consider the significance of the selection of the proper model (type of mathematical function, number of input data) which should be based on the knowledge of modeled material or phenomenon and later adequate verification of the model. The authors also underline importance of proper interpretation of results obtained by calculation. Misrepresentation may result in a misstated model of the studied phenomenon and lead to incorrect conclusions, which puts the researcher far from the truth, that he or she should always seek for.

Urządzenie do precyzyjnych pomiarów prędkości propagacji fal ultradźwiękowych i współczynnika tłumieni w tworzywach ceramicznych.

67%

Ranachowski P. , Rećko W. M.

2003

tom R. 54, nr 4

15-18