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Broadband Vibration Control of Spatially Distributed Smart Structures

机译:空间分布智能结构的宽带振动控制

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The integration of actuators with materials in combination with suitable control concepts enables the development of adaptive structures, being able to actively control structural vibrations or tructural-acoustic noise radiation. However, the success essentially depends on the fine-tuning of the entire design flow. This work presents a new fundamental design methodology for the active broadband vibration control of spatially distributed smart structures. In particular, a strategy for non-causal, model based feedforward control is developed for systems where prior knowledge of the disturbance is available. It can be readily extended to dead-time systems and allows to achieve the maximum theoretical performance for a given spatially distributed system. In this context, a detailed insight into the correlation between actuator placement and issues like spatial compensator design and upper limit of attenuation possible to achieve is presented.
机译:致动器与材料的结合以及适当的控制概念使得能够开发自适应结构,从而能够主动控制结构振动或结构声噪声辐射。但是,成功的关键在于整个设计流程的微调。这项工作为空间分布式智能结构的主动宽带振动控制提供了一种新的基本设计方法。特别地,针对可用于干扰的先验知识的系统,开发了一种基于非因果的,基于模型的前馈控制策略。它可以很容易地扩展到停滞时间系统,并可以为给定的空间分布系统实现最大的理论性能。在这种情况下,将详细介绍执行器位置与问题之间的相关性,例如空间补偿器设计和可能达到的衰减上限。

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