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| 裂纹转子故障诊断的小波时频分析方法 | |
| 引用本文： | 邹剑,陈进,邹军,蒲亚鹏,牛军川,耿遵敏.裂纹转子故障诊断的小波时频分析方法[J].上海交通大学学报,2002,36(6):865-869. |
| 作者姓名： | 邹剑 陈进 邹军 蒲亚鹏 牛军川 耿遵敏 |
| 作者单位： | 1. 上海交通大学,振动、冲击、噪声国家重点实验室,上海,200030 2. 龙口市建筑设计院,龙口,265700 3. 山东大学,机械工程学院,济南,250061 |
| 基金项目： | 国家重点基础研究规划 (973 )项目 (G19980 2 0 3 2 1)，国家自然科学基金资助项目 (10 1760 14 )，振动、冲击、噪声国家重点实验室开放基金资助项目 (VSN-2 0 0 2 -0 3 ) |
| 摘 要： | 基于局部柔度理论论铰链裂纹纹模型，建立了袭纹转子的动力学模型，得到了裂纹转子与无裂纹转子的数值仿真解，利用连续小波时频分析方法，讨论了裂纹转子与无裂纹转子的小波时频特性，提出了利用小波时频分析方法识别裂纹的新方法，数值仿真研究了采样频率及小波时频分析方法的准确性和有效性的影响，并给出了建议性的采样频率，最后实验验证了该方法的有效性和实用性。 |
| 关 键 词： | 小波时域分析方法 裂纹转子 故障诊断 裂纹识别 局部柔度理论 铰链裂纹模型 |
| 文章编号： | 1006-2467(2002)06-0865-05 |
| 修稿时间： | 2001年6月29日 |
Fault Diagnosis of Cracked Rotor by Wavelet Time-Frequency Analysis Algorithm |
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| ZOU Jian ,CHEN Jin ,ZOU Jun ,PU Ya peng ,NIU Jun chuan ,GENG Zun min.Fault Diagnosis of Cracked Rotor by Wavelet Time-Frequency Analysis Algorithm[J].Journal of Shanghai Jiaotong University,2002,36(6):865-869. | |
| Authors: | ZOU Jian CHEN Jin ZOU Jun PU Ya peng NIU Jun chuan GENG Zun min |
| Institution: | ZOU Jian 1,CHEN Jin 1,ZOU Jun 2,PU Ya peng 1,NIU Jun chuan 3,GENG Zun min 3 |
| Abstract: | The dynamic equation of cracked rotor was modelled, which is based on the local flexibility theorem and the hinge crack model; the numerical simulation solutions were obtained from the model. The wavelet time frequency properties of the uncracked rotor and the cracked rotor were discussed by the continuous wavelet time frequency analysis algorithm. A new algorithm using the wavelet time frequency analysis algorithm to detect the crack was proposed. The influence of the sampling frequency on the wavelet time frequency analysis algorithm was analyzed through the numerical simulation research; the valid sampling frequency was presented. The experiments prove the validity and availability of the algorithm in fault daignosis of the cracked rotor. |
| Keywords: | cracked rotor fault diagnosis wavelet |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |