Spatial Modal Excitation Using Point Actuators.
Spatial Modal Excitation Using Point Actuators.
复制标题
使用点执行器的空间模态激励。
DOI：
10.1299/kikaic.63.1616
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
Y. Kikushima
中科院分区：
文献类型：
--
作者：
N. Tanaka;Y. Kikushima
本文考虑平面结构的模态激励问题，采用点致动器对结构的特定模态振幅进行激励。本文的目的是建立基于点作动器的模态激励方法的设计过程。正如分布式模态执行器在模态激励方面优于点执行器一样，不存在具有足够功率的分布式执行器。为了解决这一问题，本文提出了一种易于获取和处理的点作动器模态激励设计方法。通过简单地遵循作者提出的分布式模态传感器的设计步骤，可以实现点致动器的模态激励。结果表明，在目标频率范围内，点作动器可以很好地代替分布式作动器进行模态激励。实验验证了基于点作动器的模态激励的有效性。
This paper considers the modal excitation of a planar structure using point actuators designed for exciting a particular modal amplitude of the structure. It is the purpose of this paper to establish the design procedure of a modal excitation methodology based upon point actuators. Much as a distributed modal actuator outstrips a point actuator in modal excitation, a distributed actuator with sufficient power is non existent. To cope with this problem, this paper presents a design methodology of modal excitation using point actuators that are easy to obtain and handle. It is found that modal excitation using point actuators can be achieved by simply following the design procedure of distributed modal sensors already presented by the authors. It is also found that point actuators can perfectly replace the distributed actuators for modal excitation in the frequency range of interest. Experiment is conducted, demonstrating the validity of the point actuator-based modal excitation.