TY - THES

T1 - Context Dependent Vibration Analysis for Condition Monitoring of Single-Stage Centrifugal Pumps

AU - Rollett, Mathias

N1 - embargoed until 23-10-2022

PY - 2018

Y1 - 2018

N2 - This thesis deals with the development of a cyber physical system for condition monitoring of single-stage centrifugal pumps. It begins with the choice of acceleration sensor and the development of the software for data acquisition on a PLC. Furthermore, the implementation of the mathematical methods for analysis of the acquired vibrational data, is described. The verification of the developed software is performed using simulated vibrational data under controlled conditions in the laboratory, i.e., the properties of the signals are known a-priori. The verified software is integrated into a test bench for single-stage centrifugal pumps at the test facility of the company Andritz AG. Tests are performed for the two operational states: best efficiency factor and cavitation. The results of analysis of the vibrational data of the pump are presented by the interpretation of the computed frequency spectra and the orbits. Additionally the orientation dependency of the stiffness of the test bench, as a whole, is determined. Although the development is shown on a single-stage centrifugal pump in principle it can be used for any type of pumps.

AB - This thesis deals with the development of a cyber physical system for condition monitoring of single-stage centrifugal pumps. It begins with the choice of acceleration sensor and the development of the software for data acquisition on a PLC. Furthermore, the implementation of the mathematical methods for analysis of the acquired vibrational data, is described. The verification of the developed software is performed using simulated vibrational data under controlled conditions in the laboratory, i.e., the properties of the signals are known a-priori. The verified software is integrated into a test bench for single-stage centrifugal pumps at the test facility of the company Andritz AG. Tests are performed for the two operational states: best efficiency factor and cavitation. The results of analysis of the vibrational data of the pump are presented by the interpretation of the computed frequency spectra and the orbits. Additionally the orientation dependency of the stiffness of the test bench, as a whole, is determined. Although the development is shown on a single-stage centrifugal pump in principle it can be used for any type of pumps.

KW - Vibrationsanalyse

KW - Zustandsüberwachung

KW - Datenerfassung

KW - condition monitoring

KW - vibration analysis

KW - data acquisition

M3 - Master's Thesis

ER -