Model Verification and Validation of a Piezo-Elastic Support for Passive and Active Structural State Control of Beams with Circular Cross-Section
Model Verification and Validation of a Piezo-Elastic Support for Passive and Active Structural State Control of Beams with Circular Cross-Section
复制标题
圆形截面梁被动和主动结构状态控制的压电弹性支撑的模型验证和确认
DOI：
10.4028/www.scientific.net/amm.807.67
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
T. Melz
中科院分区：
文献类型：
--
作者：
Benedict Götz;M. Schaeffner;R. Platz;T. Melz
轻型桁架结构中的梁承受轴向和横向载荷，这可能导致不期望的结构振动或屈曲失效。轴向力和侧向力可以通过桁架支撑传递，为单梁和大型结构的状态控制提供了可能性。在早期的研究中，已经研究了用于主动屈曲控制和谐振分流阻尼的压电弹性支撑的概念。弹性弹簧元件用于允许梁的支承件在垂直于梁的纵向轴线的任何平面中旋转。旋转被横向地转换成压电叠层换能器的轴向位移，压电叠层换能器用于产生用于主动屈曲控制的主动横向力或用于利用谐振分流器来衰减振动。本文对压电弹性支承的弹性特性进行了模型验证，并对圆形截面梁的被动和主动结构控制进行了验证。旋转和横向弹簧元件的刚度进行了研究数值和实验，并在验证过程中更新现有的模型。通过数值计算结果与实验结果的对比，验证了模型的有效性.
Beams in lightweight truss structures are subject to axial and lateral loads that may lead to undesired structural vibration or failure by buckling. The axial and lateral forces may be transferred via the truss supports that offer possibilities for state control of single beams and larger structures. In earlier own studies, the concept of a piezo-elastic support for active buckling control and resonant shunt damping has been investigated. An elastic spring element is used to allow a rotation in the beam's bearing in any plane perpendicular to the beam's longitudinal axis. The rotation is laterally transferred to an axial displacement of piezoelectric stack transducers that are either used to generate active lateral forces for active buckling control or to attenuate vibrations with a resonant shunt. In this paper, the model verification and validation of the elastic properties of the piezo-elastic support for passive and active structural control of beams with circular cross-section is presented. The rotational and lateral spring element stiffness is investigated numerically and experimentally and the existing models are updated in the verification process. The model is validated by comparing the numerical results and experimental ability for vibration attenuation.
影响因子：
4.1
作者：
Benedict Götz;M. Schaeffner;R. Platz;T. Melz
通讯作者：
Benedict Götz;M. Schaeffner;R. Platz;T. Melz