摘要
建立了单一控制源单一误差传感器前馈控制形式的扭转弹性波主动控制系统 ,并以位移响应为目标函数研究了扭转弹性波主动控制的最优控制效果问题以及控制力的确定。建立了扭转弹性波主动控制的试验装置以及以 TMS32 0 C2 5高速单片机为核心的单通道自适应控制器 ,以直轴为试验对象 ,开展了扭转弹性波的主动控制试验研究。并对理论研究和实验结果进行了比较。
A feedforward, adaptive control system of torsional wave is set up by using a single control source and a single error sensor. The vibration displacement amplitudes measured at the place of error sensor are looked as the cost function and the optimal positions of the secondary source and the error sensor are determined via optimal control theory. According to the physical model of the active control system, the achievable reduction in torsional wave and the required control force are investigated theoretically. Based on the theoretical research, an experimental study on the active control of torsional wave is undertaken. The experimental equipment of the active control is designed, in which an one-channel adaptive controller with the filer-X LMS algorithm is implemented on a TMS320C25 DSP being resident in a 486 computer. An effective control of torsional wave is achieved in a Homo-cross-section shaft. The theoretical results are compared with the experimental ones in optimal control investigation.
出处
《振动工程学报》
EI
CSCD
2000年第4期604-609,共6页
Journal of Vibration Engineering
基金
国家自然科学基金资助(编号:59575015，59705006)
关键词
扭转弹性波
主动控制
控制优化
轴系
elastic torsion wave
active control
optimal control
shaft system
