One of the features of a forced oscillation is the energy in the oscillation. 受迫振動(dòng)的特點(diǎn)之一是振動(dòng)的能量。
As a numerical example, nonlinear free and forced vibration phenomena of shallow spherical shells with sinusoidal corrugation are studied. 作為算例，研究了正弦波紋扁球殼的非線(xiàn)性自由和受迫振動(dòng)現象。
Express the differences of displacement variation of a mass subjected by a free damped vibration and a forced vibration, separately. 分別敘述一質(zhì)量受到無(wú)阻尼的振動(dòng)與強制振動(dòng)時(shí)位移變化的不同。
