Abstract

We present sufficient conditions for the existence of forced oscillations in nonautonomous mechanical systems. Previously, similar results have been obtained for systems with friction. The results presented here hold for systems both with and without friction. Some examples are given.

中文翻译：

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关于机械系统中强迫振动存在性的一些结果

摘要

我们提出了在非自治机械系统中存在强迫振动的充分条件。以前，对于带摩擦的系统已经获得了类似的结果。此处显示的结果适用于有摩擦和无摩擦的系统。给出了一些例子。