| Autor: |
Yasemin Nur Aydin, Gözde Sarı |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
Deu Muhendislik Fakultesi Fen ve Muhendislik. 22:209-217 |
| ISSN: |
1302-9304 |
| DOI: |
10.21205/deufmd.2020226421 |
| Popis: |
Nonlinear vibration analysis of piezo disc which is forced directly by piezo electrical effect is studied. Piezoceramic disc consists of brass disc and piezo layer. The piezoceramic disk is attached to the ground by an elastic foundation. The effect of nonlinearity occurs with the effect of elastic foundation. In this article, the equation of motion with cubic nonlinearity is proposed for the nonlinear vibrations of the piezoceramic disc. In order to obtain the phase modulation and frequency response functions of the cubic nonlinear equation, multi-scales method is applied in the equation. The analytically derived frequency response curve is confirmed by experimental data of the harmonic forced disk with piezoelectric effect. The experimentally obtained frequency response curves of the piezoceramic disk forced by the piezoelectric effect are obtained directly in the first mode. The results are as follows; It is found that as the amplitude of the force increased, minor decreases in nonlinear resonance frequency are observed. It is observed that nonlinear behavior is of softening type. It is observed that the experimental model is compatible with the experimental results. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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