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Analysis of dynamic properties of pneumatic actuator

By Ján Hrivňák


This thesis deas with dynamic analysis of pneumatic actuator which is used as regulation mechanis of turbochargers with Variable Nozzle Turbine (VNT) technology. The first part of work is focused on experimental modeling which goal is obtaining Frequency Response Function on specify frequency range by Frequency Response Function Analysis – FRFA. Dominant vibrations of pneumatic actuator active parts is expected on this specify frequency range. Results of experimental modeling will be used for gaining input parameters for numerical computation as well. The second part deal with Pre-Stressed Modal Analysis and subsequently Harmonic analysis. Obtained results with numerical and experimental analysis will be compared. This part of diploma thesis is solved in programmatic environment ANSYS Workbench

Topics: natural frequency; modal analysis; turbocharger; natural shape; harmonic analysis; hyperelasticity; pneumatic actuator; pre-stressed effect
Publisher: Vysoké učení technické v Brně. Fakulta strojního inženýrství
Year: 2013
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