用諧波平衡法研究具有几个非綫性元件的单廻路調节系統
DESCRIBING-FUNCTION METHOD FOR THE STUDY OF SINGLE LOOP CONTROL SYSTEMS CONTAINING SEVERAL NONLINEARITIES
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摘要: 本文利用谐波平衡法研究了有几个非线性元件的单迴路调节系统.首先将迴路分拆为一些简单迴路,其中每一个迴路只有一个非线性元件.然后研究了自振(过去这方面的研究有[1]及[2])及其稳定性,这时假定所有元件都是单值对称的.最后研究了强迫振动,此时有一个非线性元件可以是任意型的.Abstract: The single-loop control systems containing several nonlinearities are studied by describing-function method. A method is proposed by which the entire system can be divided into simple sections each of which contains but one nonlinearity. Then the selfsustained oscillation and its stability are studied for the case when the nonlinearities are single-valued and symmetric. Finally, systems with forced oscillations are also analysed.
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