Journal of Jilin University(Engineering and Technology Edition) ›› 2023, Vol. 53 ›› Issue (9): 2465-2473.doi: 10.13229/j.cnki.jdxbgxb.20211234

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Vibration and noise characteristics base on timing silent chain system of hybrid electric vehicle

Ya-bing CHENG1(),Ze-yu YANG1,Yan LI2,Li-chi AN1,Ze-hui XU1,Peng-yu CAO1,Lu-xiang CHEN1   

  1. 1.School of Mechanical and Aerospace Engineering，Jilin University，Changchun 130022，China
    2.Powertrain Factory，China First Automobile Co. ，Ltd. ，Changchun 130013，China
  • Received:2021-11-17 Online:2023-09-01 Published:2023-10-09

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Abstract:

Based on the special working condition requirements of hybrid electric vehicles， this thesis conducted a study on the vibration and noise characteristics of the timing silent chain system （TSCS） based on the structural design of the TSCS. The dynamics characteristics of the TSCS were analyzed and the boundary conditions required for vibration analysis were obtained by establishing the dynamics model of the TSCS， and based on the finite element analysis method， the vibration of the TSCS was studied through modal analysis and frequency response analysis， at the same time， using the vibration characteristics of the TSCS as input conditions， the acoustic boundary element simulation analysis of the TSCS was carried out， and the acoustic pressure-frequency response curve and the distribution of noise were studied. The analysis results show the excellent vibration and noise characteristics of the TSCS， and the analysis method will provide a reference for the vibration and noise reduction work of hybrid electric vehicles.

Key words: mechanical design, hybrid electric, timing silent chain system, vibration and noise, dynamics characteristics, frequency response analysis, acoustic boundary element simulation analysis

CLC Number: 

  • TB534

Fig.1

Multi-body dynamics model"

Fig.2

Movement trajectory of chain at different speeds"

Fig.3

Angular velocity of the chain plate at 2000 r/min"

Fig.4

Instantaneous transmission ratio at different speeds"

Fig.5

Contact force between the chain plate and the sprocket"

Fig.6

Meshing impact between the chain plate and the sprocket"

Fig.7

Meshing phase between the chain plate and the sprocket"

Table 1

Material properties of each component"

名称材料抗拉强度/MPa屈服强度/MPa泊松比弹性模量/MPa密度/（kg·m-3）
链板50CrVA127411270.2852.1×1057.85×103
销轴20CrMnMo11758850.2852.1×1057.85×103
链轮40Cr9807850.2852.1×1057.85×103

Fig.8

Finite element model"

Fig.9

Results of statics analysis"

Fig.10

Partial mode vibration pattern"

Fig.11

First twenty order natural frequency"

Fig.12

Speed-frequency response curve"

Fig.13

Displacement - frequency response curve"

Fig.14

Acceleration-frequency response curve"

Fig.15

Acoustic boundary element model"

Fig.16

Field point mesh"

Fig.17

Acoustic pressure-frequency response curve"

Fig.18

Acoustic pressure distribution"

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