噪声与振动控制2018，Vol.38Issue(z1)：41-45,5.DOI:10.3969/j.issn.1006-1355.2018.Z1.008
蜂窝颗粒夹层结构的等效参数及动态特性研究
Study on Equivalent Parameters and Damping Characteristics in Honeycomb Particle Sandwich Structures
马志豪 1陈天宁 1何理1
作者信息
- 1. 西安交通大学 机械结构强度与振动国家重点实验室,西安 710049
- 折叠
摘要
Abstract
In order to improve the influence of particle dampers on the structure stiffness and detect the damping characteristics of particles in sandwich structures, a honeycomb particle sandwich structure was studied by numerical simulation and experimental test. The equivalent mass, stiffness and damping of the structure were computed through the vibration power spectrum measurement. Then, the particle equivalent single degree of freedom model was established by nonlinear curve’s fitting method. This model was used for particle numerical simulation in a continuous honeycomb structure and the result was in good agreement with that of the sinusoidal sweep experiment. This study provides a convenient method for particle damping simulation.关键词
振动与波/颗粒阻尼/蜂窝结构/等效参数/功率测量/非线性拟合Key words
vibration and wave/particle damping/honeycomb structure/equivalent parameters/power measurement/nonlinear curve’s fitting分类
数理科学引用本文复制引用
马志豪,陈天宁,何理..蜂窝颗粒夹层结构的等效参数及动态特性研究[J].噪声与振动控制,2018,38(z1):41-45,5.
