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Energy methods for stability of bilinear systems with oscillatory inputs. (English) Zbl 0845.93070

The author considers the dynamical system \[ \dot x = \left( A + \sum^m_{i = 1} u_i (\omega t) B_i \right) x \] where \(A, B_1, \dots, B_m\) are constant \(n \times n\) matrices, \(x (t)\in\mathbb{R}^n\), \(u_i\) is a piecewise continuous periodic function with period \(T\) and mean 0 and for \(i,j = 1, \dots, m\), \(B_i B_j = 0\). He studies the stability of such systems under high-frequency, periodic forcing. He defines “the averaged potential” for linearizations of the systems on the (reduced) configuration space, and he shows that stable motions of the forced system are associated with minimum values of this quantity. A few examples are given to illustrates the results obtained.

MSC:

93D20 Asymptotic stability in control theory
70Q05 Control of mechanical systems
34C29 Averaging method for ordinary differential equations
93B18 Linearizations
93B17 Transformations
Full Text: DOI

References:

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