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Validation of Key Parameters Between Real and Computer Model of Suspension System Used in FSAE Vehicle

Ziemba Krzysztof, Tracz Jan, Rządkowski Witold, Kowalik Michał

Advances in Science and Technology. Research Journal

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2020

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Vol. 14, no 3

65--74

EN

The aim of this paper was to determine the differences in the designed and manufactured model of a suspension. A set of key parameters was compared, including camber and toe in angles and their change w.r.t wheel travel, as well as the motion ratio. It also focused on the possibility of accurately determining the suspension system kinematics using affordable measuring devices available on the market. First, the design process, main goals and project assumptions were briefly described. Next, the CAD model and manufacturing process was presented. Finally, the measurements of both computer and real model were performed. The obtained results were compared and a significant difference between models was observed. The reason of such variation could not be determined unambiguously, as there were numerous factors that could potentially influence the results. Moreover, it was proven that accurate determination of kinematics is impossible using the given set of measuring devices.

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Operation of ASG-EUPOS POZGEO sub-service in the event of failure of reference stations used in the standard solution – case study

Kudas Dawid, Wnęk Agnieszka

Geomatics, Landmanagement and Landscape

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2019

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no. 4

59--71

EN

The validation of the work of computational algorithms operating within the positioning system services under unusual measuring conditions is an important part of the entire system. Particularly noteworthy conditions are failures of reference stations forming the examined station network. The article evaluates the operation of the algorithm implemented to the POZGEO sub-service of the ASG-EUPOS system in the event of failure of reference stations used in the standard determination of the coordinates of the selected spatial point. The research material consisted of 117 days of continuous determination of the position of the selected spatial point using 1 hour of GPS static observations. Reports on the procedure of determining the position in the post-processing mode in POZGEO sub-service of static satellite observations were used to simulate the reduction of the number of tie vectors in coordinates’ determination method. The resistance of the automatic post-processing algorithm to failure of parts from the standard reference stations used was assessed.

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Numerical modelling of ozonation process with respect to bromate formation. Part II – Model validation

Olsińska Urszula

Chemical and Process Engineering

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2019

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Vol. 40, nr 1

39–47

EN

Validation results of a theoretical model that describes the formation of bromate during ozonation of bromide-containing natural waters are presented. An axial dispersion model integrating the nonideal mixing, mass-transfer and a kinetic model that links ozone decomposition reactions from the Tomiyasu, Fukutomi and Gordon ozone decay model with direct and indirect bromide oxidation reactions, oxidation of natural organic matter and reactions of dissolved organics and aqueous bromine was verified. The model was successfully validated with results obtained both at a laboratory and a full scale. Its applicability to different water supply systems was approved.

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Empowerment w motywowaniu i zaangażowaniu pracowników w organizacjach. Cz. 4 ®

Kułakowska A., Pawłowski M., Piątkowski Z., Sajecka R.

Postępy Techniki Przetwórstwa Spożywczego

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2017

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Nr 2

132--137

PL

W artykule przedstawiono ciąg dalszy wyników badań ankietowych dotyczących stosowania empowermentu w procesie decyzyjnym i w organizowaniu pracy zawodowej pracowników i kadry kierowniczej w organizacjach. Upełnomocnienie pracowników i kadry kierowniczej w pracy zawodowej odbywa się również w kolejnych obszarach: w podejmowaniu decyzji menedżerskich w realizacji projektów, w zachodzących relacjach występujących pomiędzy przełożonym a podwładnym, w stosowaniu instrumentów motywacyjnych przez kierownika przy zwiększonej delegacji uprawnień ze szczególnym uwzględnieniem finansowych i pozafinansowych środków motywacyjnych. Badania uwiarygodniają wcześniej postawioną tezę, iż udział pracowników w procesie decyzyjnym stawia przed kadrą menedżerską obowiązek doboru takich instrumentów motywacyjnych, aby zachęcały one podwładnych do angażowania się w wykonywanie obowiązków.

EN

In the article a continuation of results of the questionnaire survey concerning applying was described empowerment in decision-making processes and in organising the career of employees and the senior staff in organizations. Empowering employees and executive personnel takes places in the following areas: in managers’ decision-making while working on projects, in relations between subordinates and superiors, in using motivational tools by directors with increased delegation of powers, especially financial and non-financial incentives. The research lends credence to the thesis that employees’ participation in decision-making process makes executive personnel obliged to choose motivational tools which encourage employees to do their tasks.

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Experimental validation of concrete crack identification and location with acoustic emission method

Goszczyńska B., Świt G., Trąmpczyński W., Krampikowska A., Tworzewska J., Tworzewski P.

Archives of Civil and Mechanical Engineering

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2012

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Vol. 12, no. 1

23--28

EN

The work aims to experimentally validate the identification and location of destructive processes in reinforced concrete structures using the method based on the measurements of acoustic emissions generated by those processes. The system that employs the method was presented in works Gołaski et al. (2010) [3], Gołaski et al. (2006) [4] and Świt (2008) [11]. As it is very difficult to document the results obtained with the acoustic emission (AE) method, the validation of the process was conducted. The tests involved reinforced concrete beams loaded until failure. The measurements of acoustics emission were taken continuously, at the same time the strains in the beam lateral surface were recoded using 3D optical scanner (Aramis). The comparison of the results demonstrated that the recorded acoustic emission signals really correspond to the process of crack initiation and development. It was shown that the AE method not only identifies the process of formation of cracks, but also makes it possible to locate them.