摘要
以压电棒为主动元件构建立方体Stewart隔振平台,采用基于DSP的数字控制系统和Fx-LMS自适应算法进行振动控制。对输入输出通道辨识方法和主动控制模块进行测试,并给出隔振平台隔振效果验证。实验结果表明,对于10 Hz^100 Hz范围内的单频干扰,可实现24 d B以上抑制效果,对于双频干扰,也具有良好的控制效果。
With the piezoelectric stack as an active element, a cubic Stewart platform is constructed. The digital controlsystem based on DSP and Fx-LMS algorithms is adopted to suppress the foundation vibration. The input and output channelidentification system and the active control module are tested. And the vibration isolation effect of the Stewart platform isverified. The results show that for the tonal disturbance ranged from 10 Hz to 100 Hz, the Stewart platform can achieve 24dB attenuation effect. The platform also performs well under a mixed disturbance condition.
出处
《噪声与振动控制》
CSCD
2016年第3期214-218,共5页
Noise and Vibration Control
基金
上海市教育委员会和上海市教育发展基金会晨光计划资助项目(13CG08)
