基于新型压电陶瓷管状驱动器的变摩擦阻尼器动态力学性能

Dynamic Mechanical Properties of Variable Friction Damper Based on New Type Piezoelectric Ceramic Tube Drivers

基于ANSYS有限元软件,结合压电材料的物理特性对新型压电陶瓷管状驱动器的驱动性能进行了仿真,获得了其最大位移、出力及响应频率特性参数,结果表明该驱动器适用于结构振动控制装置的研发;利用上述新型驱动器,提出了一种可实时调节摩擦力的智能阻尼器,并对其进行了相关动态力学性能分析,获得了其正弦简谐作用下的本构关系及相应循环一周所消耗能量的计算公式。

Combined with the physical properties of piezoelectric material, the driving performance ot a new type of piezoelectric ceramic tubular drive was simulated based on the ANSYS finite element software. Its maximum displacement, output force and frequency response parameters are obtained. The results indicate that the drive is {it for the research of Structural vibration control device. A smart damper which could real-time adjust itself friction is put forward based on the new drive. Meanwhile, dynamic mechanical properties of the damper were analyzed. Finally, constitutive relation and energy calculation formula in one cycle are obtained under the sinusoidal harmonic effects.