VIBRATION REDUCTION IN FLEXIBLE SYSTEMS USING A TIME-VARYING IMPULSE SEQUENCE

被引:20
作者
CHO, JK
PARK, YS
机构
[1] Center for Noise and Vibration Control, Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Taejeon, 305 701, Science Town
关键词
FLEXIBLE SYSTEMS; VIBRATION REDUCTION; INPUT SHAPING TECHNIQUE; TIME-VARYING IMPULSE SEQUENCE; 2-LINK ROBOT; OVERHEAD CRANE;
D O I
10.1017/S0263574700017835
中图分类号
TP24 [机器人技术];
学科分类号
080202 ; 1405 ;
摘要
An input shaping technique using a time-varying impulse sequence is presented to reduce the motion-induced vibration of flexible systems in a feedforward way. The decoupled modal responses for a general linear time-varying system are firstly approximated. Upon this approximation, the time-varying impulse sequences to suppress the vibrational modes are found. The reference inputs to the systems are shaped by convolving with the time-varying impulse sequence to suppress the multimode vibrations. This technique can be also applied to suppress the vibration of nonlinear time-varying systems. The performance of this method is demonstrated with two practical examples: a moving overhead crane and a two-link robot manipulator. Consequently, this study provides an input shaping technique applicable to the vibration suppression of broader classes of flexible systems.
引用
收藏
页码:305 / 313
页数:9
相关论文
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