摘要
为了研究大模数合金钢齿轮采用单齿表面感应淬火热处理工艺后的接触疲劳特性,进行了相应的齿轮接触疲劳试验。采用总体平均经验模态分解(EEMD)将采集的振动信号分解,并计算其能量熵,进而分析试验过程中能量熵值变化情况,以及其与齿面点蚀情况的对应关系;从而可以将能量熵值作为一个辅助性指标来判断齿轮是否点蚀失效,完善齿轮接触疲劳试验点蚀失效的判据,为齿轮疲劳寿命预测提供基础试验数据。
In order to research the contact fatigue properties of large modulus alloy steel gear which uses the single tooth surface induction hardening heat treatment process, the gear contact fatigue tests were done. In this paper, the Ensemble Empirical Mode Decomposition （EEMD） will be used to decompose the acquisition signals, and its energy entropy is calculated. Then it analyzes the changes of the energy entropy and its relationship with the tooth surface pitting situations; Thus the energy entropy can be used as an indirect indicator to determine whether the gear pitting failure. The pitting failure criterion of gear contact fatigue test is improved and this paper provides basic test data for the gear fatigue life prediction.
出处
《机械强度》
CAS
CSCD
北大核心
2014年第3期363-367,共5页
Journal of Mechanical Strength
基金
国家863计划项目(2012AA040104)资助~~
