He Lv-Chang

We don’t have enough information about this author to calculate their statistics. If you think this is an error let us know.
Learn More
In the four-wheel tumbler test bench of semi-freedom noise elimination chamber,test the noise and vibration characteristics of a new pure electrical automobile (PURE EV), and collect noise and vibration signals of moving parts in different speeds. Analyze the frequency distribution of internal noise and vibration. The signal analysis shows noise sources of(More)
  • 1