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首页> 外文会议>Conference on Active and passive smart structures and integrated systems >Low energy multimodal semi-active control minimizing the number of transducers
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Low energy multimodal semi-active control minimizing the number of transducers

机译：低能量多模半主动控制最小化换能器的数量

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The new proposed method is the hybridization between SSDI techniques and active methods developed for modal activecontrol such as time sharing control and modal observer in order to control several modes of a structure with a goodperformance but without operative energy. It is designed in order to minimize the number of control components. Theprincipal application field is the transportation.It is based on several modal SSDI controllers which act on the same actuator voltage. They are synchronized on eachextremum of the corresponding modal displacement. Modal displacements are reconstructed thanks to a modal model ofthe smart structure from a modal observer. In order to reduce the number of actuators, the time sharing method is adaptedto SSDI techniques: all the modal SSDI are connected to the same piezoelectric actuator, but only one controller isselected to control the voltage inversion for each step time. In order to select modal SSDI controller having the mosteffective action for damping, a computation of modal energies is realized from the estimated modal state. A controllerselector is used to connect the modal SSDI command, whose corresponding mode has the highest modal energy [6], tothe switch trigger.An application on a smart clamped free beam including one actuator and two sensors is presented. Three modes arecontrolled and the modal responses are observed on five modes. The results show that the control reduces significantlythe vibration of targeted modes. Moreover, the method is not subject to stability problems.
机译：新提出的方法是，以控制的结构的几种模式有良好的性能，但没有执行能量SSDI技术和用于模态ACTIVECONTROL开发活性的方法，例如时间共享控制和模态观察者之间的杂交。它被设计以最小化控制部件的数量。 Theprincipal应用领域是基于几个模态SSDI控制器作用于致动器相同的电压transportation.It。他们分别在对应的模态位移eachextremum同步。模态位移从观察者模式重构得益于模态模型智能国税发结构。为了减少致动器的数目，时间共享方法是adaptedto SSDI技术：所有的模态SSDI被连接到相同的压电致动器，但只有一个控制器isselected来控制每个步骤的时间上的电压反转。为了选择具有用于阻尼mosteffective动作模态SSDI控制器，模态能量的计算是从估计模态来实现。甲controllerselector用于连接模态SSDI命令，其对应模式具有最高的模态能量[6]，在一个智能夹紧自由梁包括一个致动器和两个传感器被呈现tothe开关trigger.An应用。三种模式arecontrolled和模态响应的五种模式观察。结果表明，在控制降低目标模式的significantlythe振动。此外，所述方法不受稳定性的问题。

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