An efficient modal control strategy for the active vibration control of a truss structure
An efficient modal control strategy for the active vibration control of a truss structure
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DOI：
10.1155/2007/457498
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发表时间：
2007
影响因子：
1.6
通讯作者：
R. Carvalhal;V. L. Júnior;M. Brennan
中科院分区：
文献类型：
--
作者：
R. Carvalhal;V. L. Júnior;M. Brennan
本文描述了一种用于桁架结构主动振动控制的有效模态控制策略。在这种方法中，根据权重因子将反馈力施加到要控制的每个模式，该权重因子是通过评估主源激励每个模式的程度来确定的。如果主要源位于结构上的固定位置，并且源在统计意义上是静止的，则该策略是有效的。为了测试控制策略的有效性，将其与另一种既定方法（即独立模态空间控制 (IMSC)）进行比较。数值模拟表明，采用新策略可以显着减少所需的控制工作，同时将控制性能的降低降至最低。
In this paper an efficient modal control strategy is described for the active vibration control of a truss structure. In this approach, a feedback force is applied to each mode to be controlled according to a weighting factor that is determined by assessing how much each mode is excited by the primary source. The strategy is effective provided that the primary source is at a fixed position on the structure, and that the source is stationary in the statistical sense. To test the effectiveness of the control strategy it is compared with an alternative, established approach namely, Independent Modal Space Control (IMSC). Numerical simulations show that with the new strategy it is possible to significantly reduce the control effort required, with a minimal reduction in control performance.