Development of a practical control method of thermal stresses in an intelligent composite plate with heat resistance

本研究采用由耐热结构层、压电传感器层和一些压电执行器层组成的多层复合圆板作为分析模型。我们开发了一种方法，该方法提供了一种智能功能，可以自主控制结构层中的瞬态最大热应力，使其不超过其许用应力，从而适应作用在结构层上的未知热载荷。此外，我们还开发了一种优化设计多层复合圆板的方法，使智能功能的性能发挥到最大。然后，提出了优化设计的模型，并揭示了最大热应力的最高抑制比。

A multilayer composite circular plate consisting of a structural layer with heat resistance, a piezoelectric sensor layer, and some piezoelectric actuator layers is taken as an analytical model in this study. We have developed a method which provides an intelligent function for autonomously controlling the transient maximum thermal stress in the structural layer so as not to exceed its allowable stress, adapting to an unknown thermal loading acting on the structural layer. Furthermore, we have developed a method for optimally designing the multilayer composite circular plate so that the performance of the intelligent function is at its maximum. Then, the optimally designed model is presented and the highest suppression ratio of the maximum thermal stress is revealed.