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Shape optimization control of piezoelectric intelligent structure based on genetic algorithm

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Document pages: 10 pages

Abstract: The shape changes caused by machining tolerance, humidity and temperature of working environment, material wear and aging and unknown external load disturbance have a great impact on the dynamic shape of mechanical structure. When piezoelectric elements are integrated into the main mechanical structure, the inverse piezoelectric effect is used to realize the active control of structure shape. A mathematical model for shape control of piezoelectric intelligent structures is proposed in this paper. We also apply the genetic algorithm to give the piezoelectric intelligent cantilever plate affected by a certain load at both ends, and analyze the optimal shape control results of piezoelectric materials from different angles (precision reference or cost reference).The mathematical model and results indicate that, by optimizing a certain number of piezoelectric actuators, high-precision active shape control can be realized.

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