Identification of modal parametrs of transmission towers
1
AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics,
Department of Robotics and Mechatronics,
Mickiewicz Alley 30, 30-059 Krakow, Poland
2
AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics,
Department of Process Control,
Mickiewicz Alley 30, 30-059 Krakow, Poland
Submission date: 2016-05-10
Final revision date: 2016-10-19
Acceptance date: 2016-10-20
Publication date: 2016-11-21
Corresponding author
Joanna Zofia Iwaniec
AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, Department of Robotics and Mechatronics, Mickiewicz Alley 30, 30-059 Krakow, Poland, Mickiewicz Alley 30, 30-059 Krakow, Polska
AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, Department of Robotics and Mechatronics, Mickiewicz Alley 30, 30-059 Krakow, Poland, Mickiewicz Alley 30, 30-059 Krakow, Polska
Diagnostyka 2016;17(4):33–38
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ABSTRACT
The paper presents theoretical basis for identification of nonlinear systems using the method based on Hilbert transform. Discussed method was verified by analyzing the synthesized signals of known parameters. Developed and verified mathematical tools were used for analysis of dynamic responses of the real object: a laboratory (physical) model of the transmission tower. For the considered laboratory model it was possible to simulate damages of individual truss elements and observe changes in system dynamic characteristics. Results of the carried out research proved that the first natural frequency and damping factor change in the observable extent as a result of damage presence.
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