quadratic damping

Based on the extraction of parameters for Dias model and the uncertain evaluation of inversed solution, one kind of simulated minimum anneal damping quadratic involution inversion method has been established.

针对Dias模型参数的求取及反演解的不确定性评价，提出了一种模拟退火阻尼最小二乘联合反演方法。

A mathematical model of a multi medium coupling nonlinear isolator is built based on actual applying. The model consider the coupling of quadratic damping, viscosity damping, coulomb damping and nonlinear spring.

提出了一种含有平方阻尼、线性阻尼、库伦阻尼及非线性弹性元件等多介质耦合型非线性隔振器的数学模型；

Based on the UUB ( uniformly ultimately bounded) theory and a quadratic Lyapunov function, this paper provides a methodology to analyze the influence of parameter uncertainties on transient stability under the classical model with uniform damping coefficients.

该文基于UUB（一致最终有界）定理，提出一种利用二次型的Lyapunov函数分析多机均匀阻尼经典模型中参数不确定性对暂态稳定影响的解析方法。

An example of the first failure time analysis of a linear SDOF system excited by a quadratic forcing function shows the applicability of the method proposed and reveales the influence of the damping ratio of the system on its first failure.

二次力函数激励下线性SDOF系统的首次失效时间分析，说明了该方法的使用过程，并揭示了系统阻尼对首次失效的影响。