Semi-active structural motion control by transfer of modal energy.

机译：通过传递模态能量进行半主动结构运动控制。

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This dissertation proposes a theory for motion control in large flexible structures. The control approach can be classified as semiactive control because the technique only requires the dynamic alteration of system stiffnesses, an approach that requires minimal energy to implement. By adjusting the structural stiffness, the modal energy profile of the structure can be dynamically adjusted to any desired makeup. One important application is in transferring energy from lower order modes of vibration into higher order modes where the energy is dissipated more quickly by damping within the structure and the deflection is smaller.; The theoretical analysis of the energy transfer technique is presented in this dissertation. This energy transfer theory is supported, in both free vibration and forced vibration cases, by computer simulation results of two different systems (a spring-mass system and a truss structure) as well as laboratory experimental results on a small three- level-building model. Experiments show that the technique is robust to mismodelling.

机译：本文提出了一种大型柔性结构运动控制的理论。该控制方法可以归类为半主动控制，因为该技术仅需要动态改变系统刚度，该方法只需最少的能量即可实施。通过调整结构刚度，可以将结构的模态能量分布动态地调整为任何所需的结构。一种重要的应用是将能量从低阶振动模式转换为高阶模式，在这种模式下，通过结构内部的阻尼可以更快地耗散能量，并且挠度较小。本文对能量转移技术进行了理论分析。两种自由系统（弹簧-质量系统和桁架结构）的计算机模拟结果以及小型三层建筑模型的实验室实验结果均支持这种能量传递理论，无论是在自由振动还是强迫振动情况下。实验表明，该技术对错误建模具有鲁棒性。

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作者
Lin, Yingjie.;
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作者单位

The University of Texas at El Paso.;

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授予单位 The University of Texas at El Paso.;
学科 Engineering Electronics and Electrical.; Engineering Civil.; Engineering Mechanical.
学位 Ph.D.
年度 1994
页码 153 p.
总页数 153
原文格式 PDF
正文语种 eng
中图分类无线电电子学、电信技术;建筑科学;机械、仪表工业;
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Semi-active structural motion control by transfer of modal energy.

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