摘要
利用压电陶瓷作为传感器 ,对根部施加了简谐、随机激励的柔性悬臂梁的振动主动控制进行实验研究。在使用数字滤波器的基础上 ,实现了对前两阶模态的控制 ,效果明显。比较了应变率负反馈和应变正反馈控制律的控制效果。
By using PZT as sensors and actuators, experiments of vibration control are conducted on a flexible cantilever beam which is excited harmonically and stochastically at its root. Excellent control effects for the first two modes are gained with the use of digital filter. And the effects under the control laws of negative strain rate feedback and positive strain feedback are compared. In addition, SIMO control with negative strain rate feedback is discussed.
出处
《振动与冲击》
EI
CSCD
北大核心
2001年第3期1-4,15,共5页
Journal of Vibration and Shock
基金
国家自然科学基金 (1 9872 0 0 4 )
高等学校博士学科点专项科研基金资助项目
