试验结果表明，变窗移傅里叶变换算法正确可行，可有效提取旋转机械振动信号转速谱阵的特征信息。
The experimental results show that it is correct and feasible, and can extract characteristic information of the rotating speed spectral map effectively.
本文研究了利用二次通用旋转组合设计来进行多因素影响的振动流化床喷雾造粒试验，建立数学模型，得出了具有一定参考价值的最佳操作参数。
Based on the quadratic general rotary unitized design, the experiments effected by multiple factors have been made on vibro - fluidized bed spray granulation in this paper.
试验表明，系统可以发现故障机械振动信号带有的奇异性，实现旋转机械的故障诊断。
Experimentation results indicate that the singularity of the fault machinery vibration signal can be detected and the machinery fault can be discovered by the system.
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