论文标题
模糊反馈线性化方案应用于智能结构的振动控制
A fuzzy feedback linearization scheme applied to vibration control of a smart structure
论文作者
论文摘要
智能结构通常采用刺激反应机制设计，以模仿生活系统的自动调节过程。在这项工作中，为了模拟这种自然和自我调节的行为，将模糊反馈线性化方案应用于形状记忆两条杆桁架。该结构系统表现出构成性和几何非线性，呈现出瞬间行为和混乱的动力学。在此基础上，使用非线性控制器来抑制混乱的智能桁架。控制方案主要基于反馈线性化，并通过模糊的推理系统增强，以应对建模不准确和外部干扰。通过数值模拟，促进振动的减少并避免瞬间行为来评估整体控制系统的性能。
Smart structures are usually designed with a stimulus-response mechanism to mimic the autoregulatory process of living systems. In this work, in order to simulate this natural and self-adjustable behavior, a fuzzy feedback linearization scheme is applied to a shape memory two-bar truss. This structural system exhibits both constitutive and geometrical nonlinearities presenting the snap-through behavior and chaotic dynamics. On this basis, a nonlinear controller is employed for vibration suppression in the chaotic smart truss. The control scheme is primarily based on feedback linearization and enhanced by a fuzzy inference system to cope with modeling inaccuracies and external disturbances. The overall control system performance is evaluated by means of numerical simulations, promoting vibration reduction and avoiding snap-through behavior.
