Akilli Bir Kirişin Titreşimlerinin Doğrusal Karesel Düzenleyici (LQR) ile Aktif Denetimi

Akın, Onur
Şahin, Melin
In this study, active vibration control of a smart beam equipped with piezoelectric patches which are used as both sensor and actuator is investigated by using linear quadratic regulator (LQR) method. Frequency response function that includes the first natural frequency of the smart beam is obtained by applying exponential sine wave within the specified frequency range to the piezoelectric actuator patch and measuring the response of the system from another piezoelectric patch as a sensor. Then, by using the obtained frequency response function and MATLAB software, an analytic model which characterize the dynamic system of the smart beam is determined. Free and forced vibration control performances of the linear quadratic controllers which are obtained by using different Q and R parameters are tested and compared on Simulink software. Furthermore, by using the best controller which is obtained by considering the output voltage of the controller, an experimental study is conducted. Finally, the experimental results are compared with the simulation outputs.


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In this thesis, an active vibration suppression of a smart beam having piezoelectric sensor and actuators is investigated by designing separate controllers comprising a linear quadratic regulator and a neural network. At first, design of a smart beam which consists of a cantilever aluminum beam with surface bonded piezoelectric patches and a designed mechanism having a micro servomotor with a mass attached arm for obtaining variations in the frequency response function are presented. Secondly, the frequency...
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Citation Formats
O. Akın and M. Şahin, “Akilli Bir Kirişin Titreşimlerinin Doğrusal Karesel Düzenleyici (LQR) ile Aktif Denetimi,” IX. Ulusal Mekanik Kongresi , Trabzon (2015), 2015, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/70730.