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。
2
At present, fault diagnosis method of hydraulic turbine governing system has many disadvantages such as long time need and low accurate ratio.
已有水轮机调速系统故障诊断方法存在诊断时间长、准确率低等缺点。
3
Our voice activity detection method is simple to be implemented and calculated and has high accuracy, which can work in the real time digital communication network with better signal-noise-ratio.