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| 基于分形理论的内燃机噪声信号分析 | |
| 引用本文： | 廖世勇,米林,石晓辉,陈强.基于分形理论的内燃机噪声信号分析[J].内燃机工程,2010,31(2). |
| 作者姓名： | 廖世勇 米林 石晓辉 陈强 |
| 作者单位： | 1. 重庆通信学院,军事电力工程系,重庆,400035;重庆工学院,汽车零部件制造及检测技术重点实验室,重庆,400050 2. 重庆工学院,汽车零部件制造及检测技术重点实验室,重庆,400050 3. 重庆通信学院,军事电力工程系,重庆,400035 |
| 基金项目： | 国家自然科学基金资助项目(50706058);;汽车零部件制造及检测技术教育部重点实验室开放基金项目 |
| 摘 要： | 提出了基于分形的内燃机噪声信号的内燃机故障诊断方法。根据分形理论的G-P算法,阐述了内燃机噪声信号分形关联维数的计算方法,并对维数计算过程中参数的选取进行了详细的论述。通过对实际测量的内燃机噪声信号的关联维数计算分析,证明了内燃机噪声信号的分形特性。计算结果表明:内燃机噪声信号关联维数随内燃机工作状况改变有明显的变化,可作为内燃机工作状态监测和故障诊断的一个特征量。 |
| 关 键 词： | 内燃机 噪声 分形 关联维数 故障诊断 |
Study on Internal Combustion Engine Noise Based on Fractal Theory |
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| LIAO Shi-yong,MI Lin,SHI Xiao-hui,CHEN Qiang.Study on Internal Combustion Engine Noise Based on Fractal Theory[J].Chinese Internal Combustion Engine Engineering,2010,31(2). | |
| Authors: | LIAO Shi-yong MI Lin SHI Xiao-hui CHEN Qiang |
| Affiliation: | 1/a>;2;1.Department of Electric Power Engineering/a>;College of Chongqing Communication/a>;Chongqing 400035/a>;China/a>;2.Key Laboratory of Manufacture and Test Techniques for Automobile Parts/a>;Chongqing University of Technology/a>;Chongqing 400050/a>;China |
| Abstract: | A method based on fractal theory was proposed to study the noise signals of internal combustion engine.According to the G-P computational method,the calculation of the fractal correlation dimension of internal combustion engine noise signals was conducted,and then the selection for some important parameters in this calculation process was discussed.From the correlation dimension analysis of noise signals of internal combustion engine,it was proved that engine noise signals have an obvious fractal characteri... |
| Keywords: | IC engine noise fractal correlation dimension fault diagnosis |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |