Control of unstable flows

Control of unstable flows
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不稳定流量的控制

DOI:
10.1088/0256-307x/20/2/310
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发表时间:
2003-02
期刊:
Chin.Phys.Lett
影响因子:
--
通讯作者:
Mao Jianmin
Mao Jianmin
中科院分区:
其他
文献类型:
--
作者:
Liu Zengrong;Mao Jianmin

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在不引入离散模型的情况下,可以稳定不稳定驻点附近的不稳定连续流。扰动流动的矢量场的线性部分可以被管理为状态变量乘以负常数。矢量场的非线性部分保持不变,因此远离驻点的流动几乎不受扰动的影响。该控制方法易于使用,即使对于系统动力学的先验分析知识不可用的实际问题也是如此。
Without introducing a discrete model, unstable continuous flows in a neighbourhood of an unstable stationary point can be stabilized. The linear part of the vector field of disturbing the flow can be managed to become the state variable multiplied by a negative constant. The nonlinear part of the vector field keeps to be unchanged, therefore flows far away from the stationary point are almost unaffected by the disturbance. The control method is easy to be used, even for practical problems for which a priori analytical knowledge of system dynamics is unavailable.
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