Research on hydrodynamic characteristics of forced oscillation heave damping plates of Spar platforms Spar平台垂荡板受迫振荡水动力特性研究
Envision the conductor as an assemblage of driven, damped oscillators. Research on hydrodynamic characteristics of forced oscillation heave damping plates of Spar platforms 把导体看成是大量受迫阻尼振动的振子的集合。Spar平台垂荡板受迫振荡水动力特性研究
Shaking Table Model Test of Ship Lift Tower in Jinghong Water Power Station Research on hydrodynamic characteristics of forced oscillation heave damping plates of Spar platforms 景洪水电站升船机塔楼的振动台模型试验Spar平台垂荡板受迫振荡水动力特性研究
The numerical results show that the hydrodynamic damping provides slight contributions for the seismic response of the bridge piles, and then may be ignored for practical application. 讨论了非线性阻尼项对一般桥梁桩、墩结构地震反应的贡献,得到的结论是阻尼项的贡献很小,可以忽略。从而水中桥梁地震反应的计算就得到了很大的简化。
The other is the hydrodynamic pressure due to the vibration, which is equivalent to the attached mass matrix, damping matrix and stiffness matrix of the equation. 二是由于闸门振动引起流场扰动的动水压力,通过运动方程中的附加质量阵,附加阻尼阵和附加刚度阵来等效。
In a hydrodynamic lubricated journal bearing supported rotor system, the oil-film stiffness and damping characteristics are very important to the prediction of vibration performance and to which turbo-generator set designers usually pay much attention. 在流体动压滑动轴承支承转子系统中,油膜的刚度阻尼特性,对于予测振动是非常重要的,因而经常深受汽轮发电机组的设计师们的注意。
Permanent magnetic bearing and the spiral groove hydrodynamic bearing are utilized as the support for the rotor of the experimental flywheel energy storage system, and squeeze film dampers supply damping for the rotor bearing system. 在飞轮储能系统实验研究中,利用永磁轴承-螺旋槽流体动压锥轴承的混合支承,并采用了挤压油膜阻尼为转子支承系统提供阻尼。
The hydrodynamic forces on the large diameter cylinder in a two-layer fluid include not only the wave force, added mass and damping coefficient by produced the surface wave but the ones produced by the internal wave. This is different from the case of the uniform fluid. 与单层流体不同,对两层流体,作用在大直径圆柱体上的水动作用力,除了表面波模态的波浪力、附加质量和阻尼系数外,还有内波模态的波浪力、附加质量和阻尼系数。
The equilibrium positions of the hydrodynamic bearing-rotor system were determined making use of Newton-Raphson method and the damping and stiffness coefficients of the supporting bearing were simultaneously obtained as the byproducts. 运用Newton-Raphson方法求得转子平衡点时,同时求得了作为副产品的轴承的刚度和阻尼系数。