Zhang Yuanlin, Liu Xuefeng, Rong Weichong, Gao Peixin, Yu Tao, Han Huawei, Xu Langjun
School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China.
Yantai CIMC Raffles Offshore Limited, Yantai 264670, China.
Materials (Basel). 2021 Mar 4;14(5):1209. doi: 10.3390/ma14051209.
Pipelines work in serious vibration environments caused by mechanical-based excitation, and it is thus challenging to put forward effective methods to reduce the vibration of pipelines. The common vibration control technique mainly uses the installation of dampers, constrained layer damping materials, and an optimized layout to control the vibration of pipelines. However, the passive damping treatment has little influence on the low frequency range of a pipeline system. Active control technology can obtain a remarkable damping effect. An active constrained layer damping (ACLD) system with piezoelectric materials is proposed in this paper. This paper aims to investigate the vibration and damping effect of ACLD pipeline under fixed support. The finite element method is employed to establish the motion equations of the ACLD pipeline. The effect of the thickness and elastic modulus of the viscoelastic layer, the laying position, and the coverage of ACLD patch, and the voltage of the piezoelectric material are all considered. The results show that the best damping performance can be obtained by selecting appropriate control parameters, and it can provide effective design guidance for active vibration control of a pipeline system.
管道在由机械激励引起的严重振动环境中工作，因此提出有效的方法来减少管道振动具有挑战性。常见的振动控制技术主要通过安装阻尼器、约束层阻尼材料以及优化布局来控制管道振动。然而，被动阻尼处理对管道系统的低频范围影响较小。主动控制技术可以获得显著的阻尼效果。本文提出了一种带有压电材料的主动约束层阻尼（ACLD）系统。本文旨在研究固定支撑下ACLD管道的振动和阻尼效果。采用有限元方法建立ACLD管道的运动方程。考虑了粘弹性层的厚度和弹性模量、ACLD贴片的铺设位置和覆盖范围以及压电材料的电压等因素。结果表明，通过选择合适的控制参数可以获得最佳的阻尼性能，可为管道系统的主动振动控制提供有效的设计指导。
