Fuzzy Reliability Analysis Of Piezoelectric Intelligent Beam Structure With Stochastic Parameters

The stochastic piezoelectricity intelligent beam structure's vibration has the vital significance in the structural design and the control,so it becomes more and more important for structure design and control in foreign and domain. In existing literatures, the most of them are obtained from the aspect of the control, even more regards the control result of the structure vibration. But has neglected the randomness of applied loads. The problems about the vibration reliability have got the recognition in more and more trades. In this paper, it is obtained the aspect of the vibration. Let the inherent frequency, frequency of excitation force, applied loads, control forces and vibration response of structure be processed according to reality into random variables, and has considered of randomness and the fuzziness of the related design parameters. Simultaneously applied the pseudo-excitation method to make the random vibration analysis to the stochastic piezoelectricity intelligent beam structure. By means of combining reliability theory and fuzzy mathematics into an organic whole, and taking the traditional vibration reliability analysis as a foundation. To make fuzzy reliability analysis of the stochastic piezoelectricity intelligent beam structure in the no resonance and over loading. As well as overall evaluation amplitude and frequency dual influences. And through Matlab simulation result contrast, the fuzzy reliability analysis we made on the stochastic piezoelectricity intelligent beam structure shows that is feasible and in line with practice, and its importance. This paper can provide certain foundation for the stochastic piezoelectricity intelligent beam structure in accurate vibration control.