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| 车用柴油机振动故障混沌诊断系统及其应用 | |
| 引用本文： | 谭季秋,鄂加强,谭青,邓元望,钟定清.车用柴油机振动故障混沌诊断系统及其应用[J].中南大学学报(自然科学版),2011,42(4). |
| 作者姓名： | 谭季秋 鄂加强 谭青 邓元望 钟定清 |
| 作者单位： | 1. 湖南工程学院机械工程学院,湖南湘潭,411101;中南大学机电学院,湖南长沙,410083 2. 湖南大学机械与运载工程学院,湖南长沙,410082 3. 中南大学机电学院,湖南长沙,410083 4. 湖南工程学院机械工程学院,湖南湘潭,411101 |
| 基金项目： | 湖南省自然科学基金，国家"985工程"二期创新平台基金 |
| 摘 要： | 为实现车用柴油机潜在振动故障有效诊断,基于建立的车用柴油机状态监测系统提取车用柴油机振动信号,并得出不同嵌入相空间下车用柴油机机身振动信号时间序列关联维数的变化规律.研究结果表明;车用柴油机振动信号时间序列是混沌序列,影响车用柴油机振动信号的系统内部因素最多可达8个,最少不会少于1个;缸盖振动既具确定性,又具混沌特性,而缸套振动、机身振动则可以认为是混沌振动. |
| 关 键 词： | 车用柴油机 振动信号 混沌 时间序列 关联维数 Lyapunov指数 |
Chaos diagnosis system of vibration fault for vehicle diesel engine and its application |
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| TAN Ji-qiu,E Jiaqiang,TAN Qing,DENG Yuan-wang,ZHONG Ding-qing.Chaos diagnosis system of vibration fault for vehicle diesel engine and its application[J].Journal of Central South University:Science and Technology,2011,42(4). | |
| Authors: | TAN Ji-qiu E Jiaqiang TAN Qing DENG Yuan-wang ZHONG Ding-qing |
| Institution: | TAN Ji-qiu1,3,E Jia-qiang2,TAN Qing3,DENG Yuan-wang2,ZHONG Ding-qing1 (1.College of Mechanical Engineering,Hunan Institute of Engineering,Xiangtan 411101,China,2.College of Mechanical and Vehicle Engineering,Hunan University,Changsha 410082,3.School of Mechanical and Electrical Engineering,Central South University,Changsha 410083,China) |
| Abstract: | In order to realize the efficient diagnosis of potential vibration fault from the vehicle diesel engine,vibration signals of vehicle diesel engine were picked up using state monitoring system for vehicle diesel engine,and their changing regularities of the correction dimension were gotten in different embedding spaces.The results show that there are fractal and chaos features in the de-noising vehicle engine vibration system,and there are eight internal factors at best and one internal factors at least.Ther... |
| Keywords: | diesel engine vibration signals chaos time series correction dimension number Lyapunov index |
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