| 引用本文: | 程哲,胡茑庆,高经纬.基于物理模型的行星轮系特征提取与评估方法.[J].国防科技大学学报,2010,32(6):130-134.[点击复制] |
| CHENG Zhe,HU Niaoqing,GAO Jingwei.Feature Extraction and Evaluation Method for Planetary Gear Sets Based on Physical Model[J].Journal of National University of Defense Technology,2010,32(6):130-134[点击复制] |
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| 基于物理模型的行星轮系特征提取与评估方法 |
| 程哲, 胡茑庆, 高经纬 |
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(国防科技大学 机电工程与自动化学院，湖南 长沙 410073)
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| 摘要: |
| 特征提取与评估是损伤检测和故障预测的基础。针对2K-H行星轮系缺齿损伤，建立了行星轮系的损伤模型，通过分析模型的仿真信号，提出了基于主频边带、小波变换和经验模式分解的多种损伤特征，并采用双样本一致性检验方法对所提取损伤特征的分类能力进行了评估，采用含噪声的仿真信号和试验数据对损伤特征进行了验证。验证结果表明，所提取的损伤特征均具有较强的分类能力，其中主频边带特征的分类性能最优。 |
| 关键词: 行星轮系 物理模型 损伤特征 特征评估 |
| DOI： |
| 投稿日期：2010-04-15 |
| 基金项目:国家自然科学基金资助项目(50905183)；湖南省杰出青年科学基金资助项目(08JJ1088) |
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| Feature Extraction and Evaluation Method for Planetary Gear Sets Based on Physical Model |
| CHENG Zhe, HU Niaoqing, GAO Jingwei |
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(College of Mechatronics Engineering and Automation, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| Feature extraction and evaluation is the basis of detection and prognosis. Aiming at tooth breakage in 2K-H planetary gear sets, damage model of planetary gear sets was developed. After the analysis of simulation signals, features based on sidebands around dominant frequency, wavelet transform and EMD were presented and valuated with two samples consistency check. Then the features extracted in the above were verified by simulation signal and test data. Validation results show that the features are promising and the feature based on sideband around dominant frequency is the best one to detect damage for 2K-H planetary gear sets. |
| Keywords: planetary gear sets physical model feature extraction feature evaluation |
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