Research on the Prediction Model for Sound Quality of Unloaded Traction Motor
To establish a sound quality prediction model for traction motors under no-load conditions,noise tests were conducted at different positions at multiple rotational speeds.Objective parameters of sound quali-ty,such as loudness,sharpness,roughness,and fluctuation strength,were obtained,and the variation pat-terns of each objective parameter with rotational speed were analyzed;Jury test was conducted on 40 sound samples using a rating system,and abnormal data was removed using a box plot to obtain the average subjec-tive evaluation for each sound sample;Finally,multiple linear regression and surrogate model methods were used to establish motor sound quality prediction models.The latter has higher prediction accuracy compared to the former.This method and research results can provide reference for subsequent optimization of motor sound quality.
traction motorsound qualityjury testsurrogate model
NETL
NSTL
万方数据
