Wave absorbing. controllers for a flexible beam
Wave absorbing. controllers for a flexible beam
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吸波。
DOI：
10.2514/3.20163
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发表时间：
1986
影响因子：
2.6
通讯作者：
B. Schaefer
中科院分区：
文献类型：
--
作者：
A. V. Flotow;B. Schaefer
本文介绍了悬挂柔性梁的建模和振动控制的理论和实验工作。基于局部速度对致动器力反馈的低权限控制器的合成和实验室实现一直是前人研究的课题。本文扩展了基于干扰传播和反射概念的低权限控制器的设计和实验室实现。控制力被施加到悬挂梁的下端。推导出补偿器，通过反馈局部挠度和斜率来控制力和力矩，以使下端能量反射最小。其中的一些补偿器是由模拟电子滤波器近似实验室实现。将这些吸波补偿器的性能与速度反馈补偿器的性能进行了比较。
This paper describes theoretical and experimental work performed on the modelling and vibration control of a hanging flexible beam. The synthesis and laboratory implementation of low-authority controllers based upon feedback of local velocity to actuator force has been the subject of previous studies. This paper extends this work with the design and laboratory implementation of low-authority controllers based upon concepts of disturbance propagation and reflection. Control forces are applied to the lower end of the hanging beam. Compensators are derived which feed back local deflection and slope to control force and moment with the goal of minimizing the reflection of energy at the lower end. Several of these compensators are approximated by analog electronic filters for laboratory implementaipn. The performance of these wave-absorbing compensators is compared with that of velocity feedback.