Of course, the first thing that everyone stated was that if you increase the stiffnessof any system, then the modes must shift upwards because.
当然首先每个人都说过，如果你增加任意系统的刚度，那么模态必然向上迁移，因为。
2
A-operator method (AOM) is used to study the influence of the speed ratio and time varying meshing stiffness on rattling threshold speed of the gear system.
用算符分解算法(AOM)得到了系统的近似解析解，并研究了传动比和时变啮合刚度对拍击门槛转速的影响。
3
The influence of eccentricity mass moment and the bearing stiffness to vibration characteristics of rotor system was discussed in detail.