具有多点反馈的可控约束层阻尼

讨论了具有可控约束阻尼结构的多点杂交阻尼控制问题，建立了弹性，粘弹性和多个压电片组成的多层复合梁的偏微分方程线，通过模态转换和应用粘弹性材料的振子模型对模型进行减缩。以实际中可测量量作为反馈量进行次优控制，数值模拟说明，提出了控制方式抑制振动效果好，控制电压低，易于实现。

Controllable Constrained Layer Damping with Multi-input feedback

In this paper the hybrid damping control of the structure with controllab1e constrained layerdamping by using multi-input feedback is studied. The partial differential equations of a complex beamconsisted of elastic, viscoelastic layers and several piezoelectric patches are formulated. In terms of modetransform and the vibrator model of viscoelasticity material, the system model is reduced. The some mea-surable signals are taken as the feedback control inputs. The numerical simulations of different loads indi-cate that the control manner which proposed in this paper is better way for suppressing the structure vibra-tion, the control voltage is lower and it is easier to realize in actual application.