ROTOR STRENGTH ANALYSIS AND LIFE CALCULATION OF HEV MOTOR

DENG ChengHao; LIU WeiGuo; LI ZongHua; ZHOU AnJian; SU LinKe

doi:10.16579/j.issn.1001.9669.2015.01.028

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ROTOR STRENGTH ANALYSIS AND LIFE CALCULATION OF HEV MOTOR

更新时间：2022-09-22

- ROTOR STRENGTH ANALYSIS AND LIFE CALCULATION OF HEV MOTOR
- Journal of Mechanical Strength Vol. 37, Issue 1, Pages: 104-108(2015)
- 作者机构：
  
  1. 重庆长安新能源汽车有限公司
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2015.01.028
  CLC：
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DENG ChengHao, LIU WeiGuo, LI ZongHua, et al. ROTOR STRENGTH ANALYSIS AND LIFE CALCULATION OF HEV MOTOR. [J]. 37(1):104-108(2015)
DOI：

DENG ChengHao, LIU WeiGuo, LI ZongHua, et al. ROTOR STRENGTH ANALYSIS AND LIFE CALCULATION OF HEV MOTOR. [J]. 37(1):104-108(2015) DOI： 10.16579/j.issn.1001.9669.2015.01.028.

摘要

某混合动力汽车电机转子的转轴与硅钢片之间采用了过盈装配。为研究该装配工艺的结构可靠性,通过CAE方法分析转子结构的装配应力,并进行疲劳寿命计算。对比相同结构采用间隙与过盈装配后的应力计算结果,发现合理的过盈量选择,可降低转子结构在不同转速下的应力波动。深入分析表明,离心应力波动较大的旋转构件,可在径向方向引入过盈装配,提高装配件的抗疲劳能力。

Abstract

The interference fit between HEV motor rotor shaft and dynamo sheets was discussed in this paper. Assembly stress was analyzed and fatigue life was predicted by CAE method to study the motor rotor’s structural reliability. Comparison with the Von Mises stress results under different assembling methods shows,proper use of interference fit can reduce the stress fluctuation of matching components in deferent rotational speeds. Deeply research proves that interference fit in rotational part’s radial direction can obviously improve the fatigue performance if high stress fluctuation caused by centrifugal force exists.

关键词

电机转子过盈配合装配应力强度分析疲劳寿命

Keywords

Motor rotorInterference fitAssembly stressStrength analysisFatigue life

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