We study the decay rate of solutions of beam equations with damping and external force.
研究含外力和阻尼项一类梁的横振动方程解的率减率。
In this paper, the initial-boundary value problem of a kind of nonlinear fourth-order wave equations with damping and source terms is studied on the base of Beam equation.
本文在梁方程的基础上研究了一类具有非线性阻尼项和力源项的四阶波动方程的初边值问题。
The vertical human body models with different postures are selected according to ISO5982, and the dynamic coupling equations with non-classical damping for structure and human are established.
根据国际标准ISO 5982规定的不同姿势下的竖向人体动力模型，建立了具有非经典阻尼的人与结构耦合运动方程。
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