噪声与振动控制2017，Vol.37Issue(3)：62-65,4.DOI:10.3969/j.issn.1006-1355.2017.03.012
基座刚度对主被动隔振系统控制效果的影响分析
Analysis of the Effect of Base Stiffness on Control Performance of Passive-active Vibration Isolation Systems
张能 1何琳 2李彦1
作者信息
- 1. 海军工程大学 振动与噪声研究所,武汉 430033
- 2. 船舶振动噪声重点实验室,武汉 430033
- 折叠
摘要
Abstract
The isolation performance of the passive-active vibration isolation system on a flexible base is investigated. The flexible base is simplified as a mass element connected to a spring with large stiffness. The 3-DOF model of the passive-active vibration isolation system on the flexible base is established and the corresponding dynamic equation is developed. The transfer functions of primary path and secondary path are derived in the frequency domain. Combined with FxLMS adaptive algorithm, the model of the vibration isolation system is built by means of Matlab/Simulink software. The multi-frequency sinusoidal exciting force containing white noise is added to the system for active vibration isolation analysis. Influences of the base stiffness on the amplitude-frequency characteristics of the transfer functions of the primary and secondary paths, vibrational spectral line control performance and active control force are analyzed. It is found that large base stiffness is beneficial for improving vibrational spectral line control performance and reducing active control force demand.关键词
振动与波/弹性基座/主被动隔振/FxLMS算法/振动线谱控制/幅频特性Key words
vibration and wave/flexible base/passive-active vibration isolation/FxLMS algorithm/vibrational spectral line control/amplitude-frequency characteristic分类
数理科学引用本文复制引用
张能,何琳,李彦..基座刚度对主被动隔振系统控制效果的影响分析[J].噪声与振动控制,2017,37(3):62-65,4.
