Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Mechanical Design and Production

A tuned vibration absorber (TVA) is realized using different tuning conditions. The main objective in adaptive tuned vibration absorber is maximizing the vibration attenuation of main system vibration by optimizing the tuning condition, which is used to track the excitation frequency. An adaptive pendulum absorber is built experimentally to test the vibration suppression of the vibrating table. The vibrating table is excited with an unbalanced rotor. Full control loop with two feedback signals is constructed to find out the benefit of using adaptive absorber. Finally, proportional-integral-derivative with first order filter (PIDF) and proportional-integral plus proportional-derivative with first order filter (PI-PDF) automatic controllers are used to adapt the pendulum absorber analytically using simulink in MATLAB program. The PI-PDF controller gives better performance than PIDF one specially around the resonance

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