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Approaches to sensitivity analysis for system reliability study of smart structures for active vibration reduction

机译：智能结构主动减振系统可靠性研究的灵敏度分析方法

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The modern engineering products must fulfill the increasing requirements to the vibroacoustical behavior of the components and the system. For many applications such as automotive engineering, where light-weight design is desired, passive measures for noise and vibration reduction have reached certain limits. For this reason, active techniques for structural vibration reduction are becoming increasingly important in this field of applications. Commonly, actively or adaptively controlled structural systems consist of a large number of components with various functionalities. As the complexity of the systems increases, reliability and robustness studies become a more complicated task. The knowledge of parameter effects and their interactions is important for the reliability study and the design optimization of such systems. Sensitivity analysis can help the system designers to understand interactions between the system components and identify the important parameters with significant overall influences on the system performance. In this paper, several approaches to sensitivity analysis to investigate the influences of the system parameters on the active vibration reduction of a structural system are introduced. An improvement of the robustness of the active system by using adaptive control will be shown.
机译：现代工程产品必须满足对组件和系统的振动声学要求的不断增长的要求。对于需要轻量化设计的许多应用（例如汽车工程），用于降噪和减振的被动措施已达到一定的极限。因此，在该应用领域中，用于减少结构振动的主动技术变得越来越重要。通常，主动或自适应控制的结构系统由具有各种功能的大量组件组成。随着系统复杂性的增加，可靠性和鲁棒性研究变得更加复杂。参数效应及其相互作用的知识对于此类系统的可靠性研究和设计优化非常重要。敏感性分析可以帮助系统设计人员了解系统组件之间的相互作用，并确定对系统性能具有重大总体影响的重要参数。本文介绍了几种敏感性分析方法，以研究系统参数对结构系统主动减振的影响。将显示通过使用自适应控制来改善主动系统的鲁棒性。

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