新型压电摩擦阻尼器本构模型的分析

Property analysis of a piezoelectric friction damper

随着振动控制技术的发展 ,半主动控制引起工程界人士的广泛关注 .可控摩擦阻尼器作为一种有效的半主动控制装置获得了广泛的研究和应用 .本文正是在着力改进现有可控摩擦阻尼器的基础上 ,设计了压电摩擦阻尼器 PALL支撑 ,为结构振动的控制提供了一种全新的选择 .文中采用了 ANSYS软件的有限元分析方法 ,对压电摩擦阻尼器进行了性能模拟试验 ,研究了其在各级电压下的摩擦耗能特性 ,在此基础上我们给出了压电摩擦阻尼器

With the developrment of technology in structural vibration control, semi active control methods have attracted more and more attention from engineering society. In this paper, a new semi active control system, the piezoelectric friction damper PALL (PFDP) brace' is designed, as an alternative for structural vibration control purpose. In the analysis of the PFDP brace's damping property, finite element analysis program ANSYS is put to use. From this analysis, the damping property at different voltage is derived. And a bilinear damping model with voltage parameter is developed.