Fuzzy Control of a Vibration Isolation Platform Based on Eight-pole Axial Winding MR Damper
In order to study the vibration isolation performance and control strategy of the Magnetorheological(MR)damper in the vibration isolation system,a vibration isolation platform of the MR damper connected in parallel with the com-pression spring was constructed with the eight-pole axial winding MR damper as the control object.The platform used an electric vibration bench with a sinusoidal displacement excitation to test the acceleration transmissibility of the vibration iso-lation platform under different excitation currents and excitation frequencies.According to the test results,a fuzzy control al-gorithm was designed,the input of the control system was set as the acceleration transmissibility and the excitation frequen-cy,while the output was set as the excitation current of the MR damper.Finally,the displacement sweep frequency excitation experiment was done on the vibration isolation platform.The experimental results show that the designed control algorithm can effectively reduce the acceleration transmissibility by more than 14.3%in the resonant frequency range of 9.4-11.4 Hz.This research can provide a foundation for the engineering application of MR dampers in the field of vibration isolation.
vibration and waveMR damperfuzzy controlfrequency sweep excitationvibration isolation experiment
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