一水泵振动频谱大家分析一下高频400和450处的尖峰是什么意思

Bearing frequencies : NU 2217 ECM

Input parameters

[tr]  [td]  

ni
  Rotational speed of the inner ring

  [/td]  [td=208]  

1500 r/min

  [/td] [/tr]
[tr]  [td]  

[/td] [/tr][/tr]

Result

[tr]  [td]  

fi
  Rotational frequency of the inner ring

  [/td]  [td=301]  

25.0 Hz  

  [/td] [/tr]
[tr]  [td]  

fe
  Rotational frequency of the outer ring

  [/td]  [td=301]  

0.0 Hz  

  [/td] [/tr]
[tr]  [td]  

fc 滚动元件和保持架组件的旋转频率

  

Rotational frequency of the    rolling element and cage assembly

  [/td]  [td=301]  

10.601265822784809 Hz  

  [/td] [/tr]
[tr]  [td]  

fr 滚动元件绕轴旋转的频率
  Rotational frequency of a rolling element about its own axis

  [/td]  [td=301]  

80.39293248945147 Hz  

  [/td] [/tr]
[tr]  [td]  

fip 过滚动内圈上的一个点的频率
  Over-rolling frequency of one point on the inner ring

  [/td]  [td=301]  

244.77848101265823 Hz  

  [/td] [/tr]
[tr]  [td]  

fep 过滚动外圈上的一个点的频率
  Over-rolling frequency of one point on the outer ring

  [/td]  [td=301]  

180.22151898734177 Hz  

  [/td] [/tr]
[tr]  [td]  

frp 过滚动的滚动元件上的一个点的频率
  Over-rolling frequency of one point on a rolling element

  [/td]  [td=301]  

160.78586497890294 Hz  

  [/td] [/tr][/table]

B Bearing frequencies : 6314
frInput parameters
    

ni
  Rotational speed of the inner ring

      

1500 r/min

  
    

ne
  Rotational speed of the outer ring (only used to calculate the bearing  frequencies)

      

0 r/min

   [table=548]
Result
[tr]  [td]  

fi
  Rotational frequency of the inner ring

  [/td]  [td=308]  

25.0 Hz  

  [/td] [/tr]
[tr]  [td]  

fe
  Rotational frequency of the outer ring

  [/td]  [td=308]  

0.0 Hz  

  [/td] [/tr]
[tr]  [td]  

fc
  Rotational frequency of the rolling element and cage assembly

  [/td]  [td=308]  

9.613636363636363  Hz  

  [/td] [/tr]
[tr]  [td]  

fr
  Rotational frequency of a rolling element about its own axis

  [/td]  [td=308]  

51.2474946313529  Hz  

  [/td] [/tr]
[tr]  [td]  

fip
  Over-rolling frequency of one point on the inner ring

  [/td]  [td=308]  

123.0909090909091  Hz  

  [/td] [/tr]
[tr]  [td]  

fep
  Over-rolling frequency of one point on the outer ring

  [/td]  [td=308]  

76.9090909090909  Hz  

  [/td] [/tr]
[tr]  [td]  

frp
  Over-rolling frequency of one point on a rolling element

  [/td]  [td=308]  

102.4949892627058  Hz

  [/td] [/tr]

看图像是外圈故障，波形上表现出很小