考虑选择阻尼 静态分析中默认的力学阻尼是局部阻尼(local damping),当大多数节点的速度分量周期性地过穿零值时,用局部阻尼来移去动能是最有效的办法。这是因为质量调整过程取决于速度符号改变。
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local damping layer 局部阻尼涂层
local damping ratio 局域阻尼比
local high damping 局部高阻尼
local distributed viscoelastic damping 局部分布的粘弹性阻尼
Moreover, the effect of local stiffness damages upon the local damping properties, vibration energy distribution, and the behaviors of damp dissipation of structures are investigated separately.
计算还揭示了局部刚度损伤对结构局部阻尼特性、振动能量分布和阻尼耗能行为的影响。
Local time step, implicit residue averaging, enthalpy damping are used to accelerate the convergence.
运用当地时间步长、隐式残值光顺、焓阻尼等措施加速计算收敛。
Conventional power system stabilizer (PSS) adopting local generator signals is not sufficiently effective to enhance the damping of the system.
传统的电力系统稳定器(PSS)采用本地机组信号,不能有效提高系统阻尼。
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