混凝土泵车臂架振动响应的主动控制实验研究

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (2) : 91-94.

论文

混凝土泵车臂架振动响应的主动控制实验研究

黄毅; 吴斌兴; 王佳茜

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Experimental research on active control of boom vibration of concrete pump truck

HUANG Yi; WU Bin-xing; WANG Jia-qian

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摘要

考虑混凝土泵车臂架结构特点，采用独立模态空间控制方法对泵送混凝土激励下的臂架末臂节振动响应进行了主动控制试验研究。针对泵车臂架系统的动力学模型，采用模态滤波技术和最优控制理论设计主动控制策略，通过优选臂节油缸的作动控制以实现对臂架一阶模态振动响应的实时控制。实验结果表明，采用该主动减振控制后水平工况下臂架末端的减振精度可达80%，取得了显著的减振实验效果

Abstract

Boom vibration of concrete pump truck not only affects the running quality, but also increases the structure's stress and reduces its fatigue life. Based on Independent Modal Space Control method, experimental study on active control of boom vibration of concrete pump truck in horizontal position was carried out. Firstly, the flex-rigid multi-body dynamical model of boom system was established. Then an active control strategy was designed, which utilized a Modal Filter and optimal control theory to implement Independent Modal Space Control of boom vibration. Finally, the real-time control experiment was performed in which controlled oil-cylinders' movement provided the control force to reduce the boom's 1st modal vibration. Results show that the amplitude of the boom vibration can be lowered approximate 80% in horizontal position.
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导出引用

黄毅;吴斌兴;王佳茜. 混凝土泵车臂架振动响应的主动控制实验研究 [J]. 振动与冲击, 2012, 31(2): 91-94

HUANG Yi; WU Bin-xing; WANG Jia-qian. Experimental research on active control of boom vibration of concrete pump truck[J]. Journal of Vibration and Shock, 2012, 31(2): 91-94