A nonlinear oscillator with a damping term can model many nonlinear vibration problems. This short remark insights into its physical understanding by the variational principle, which is established...

中文翻译：

---

关于具有阻尼项的非线性振荡器的简短评论

具有阻尼项的非线性振荡器可以模拟许多非线性振动问题。这段简短的评论通过变分原理洞察了它的物理理解，它被建立...