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Test bench and simulation research on hydrodynamic torque converter for different input signals

Wozniak M., Siczek K., Pawelski Z.

Journal of KONES

2016

Vol. 23, No. 4

561--568

This paper presents the experimental research and simulating results of a ZM130 hydrodynamic torque converter under steady and unsteady working conditions with an external step signal and sinus on turbine’s shaft on a modified test bench. The mathematical model of torque converter was described by the one-dimensional flow theory with variable loss coefficients. The character of received equations from test bend showed by linearized transmittance functions with variable coefficients. For test bend object identification researches will be used an Identification Toolbox from a mathematical code in Matlab, which enables to create transfer functions as a linear model from measurements data as they got the highest correctness level with input signal (as they get the best correction level with input signal on the pump´s shaft). This mathematical model for dynamic loads will be verified by experimental tests. The aim of the carried out studies was determination the effect of sampling time decreasing on the quality of measured parameters. Results of present investigations were compared with those obtained earlier, but for the same input signals .It is possible to affirm that proposed theoretical model imitates the change of dynamic parameters, and the same the property of the torque converter. Researches led on the test bend with extortion input torque sinus signal on the turbine’s shaft confirmed correctness of this model.

Integrated system merging the knowledge of different medical and technological disciplines WROVASC project

Burduk R., Jackowski K., Wozniak M.

Journal of Medical Informatics & Technologies

2010

Vol. 14

23--29

The paper presents selected aims of WROVASK project carried on by Regional Specialist Hospital in Wroclaw with cooperation with a number of academic and research centres. The project is of interdisciplinary kind and gathers researchers and experts of number different disciplines, like chemistry, agricultural, and technical sciences, especially mechanics and informatics. Some tasks aiming at development information systems are presented and described such as: data warehouse based reporting system for the hospital, the system supporting assignment management in teleradiology with optimization of its distribution, and intelligent decision support system for automated assessment of washing surgical tools quality.