Engineering Research Equipment Grant: Experiments in ActiveControl of Vibrations and Normal Mode Localization

该项目提供资源采购设备， 加强振动主动控制研究， 简正模局部化 具体来说，研究 （1）理解模式现象 在周期性和非周期性结构中的局部化， (2)基于模态的结构振动主动控制 本地化，（3）实验验证的一个 最近开发的频域设计。 设备 将用于两个实验设施的仪器 与这项研究有关。 一个设施是一个长 简正模态柔性桁架结构 周期结构中的局部化研究，以及其他 是一种用于定位的简支柔性薄梁 研究非周期性结构。 设备 包括便携式数字存储示波器， 无刷直流力矩电机、电源和放大器 对于力矩马达，非接触位移 测量系统和模态分析设备。

This project provides resources to procure equipment to enhance research in the active control of vibrations and normal mode localization. Specifically, the research entails (1) understanding the phenomenon of mode localization in both periodic and non periodic structures, (2) active control of structural vibrations based on mode localization, and (3) the experimental validation of a recently developed frequency domain design. The equipment will be used to instrument two experimental facilities associated with this research. One facility is a long compliant truss structure dedicated to normal mode localization studies in periodic structures, and the other is a simply supported thin flexible beam for localization studies in non periodic structures. The equipment comprises a portable digital storage oscilloscope, brushless DC torque motors, power supplies and amplifiers for the torque motors, a non contacting displacement measuring system, and modal analysis equipment.