| 内燃机高压油管的波登效应及振动诊断 |
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| 引用本文： | 杜元虎,康晶.内燃机高压油管的波登效应及振动诊断[J].大连民族学院学报,2008,10(3):228-230. |
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| 作者姓名： | 杜元虎 康晶 |
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| 作者单位： | 大连民族学院,机电信息工程学院,辽宁,大连,116605 |
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| 摘 要： | 通过设计振动信号测试系统，提取柴油机高压油管的故障信息，对振动信号的功率谱特征进行分析，研究高压油管在喷油过程中燃油的压力能和油管变形能、激振能的关系。提出高压油管振动主要是油管本身的波登效应引起的，这是导致燃油系统故障的主要原因之一。
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| 关 键 词： | 高压油管 激振能 弹性变形 振动 故障诊断 |
Vibration Detection & Diagnosis for High-pressure Fuel Pipe of Diesel Engine |
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| DU Yuan-hu,KANG Jing.Vibration Detection & Diagnosis for High-pressure Fuel Pipe of Diesel Engine[J].Journal of Dalian Nationalities University,2008,10(3):228-230. |
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| Authors: | DU Yuan-hu KANG Jing |
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| Institution: | (College of Electromechanical ＆ Information Engineering, Dalian Nationalities University, Dalian Liaoning 116605, China) |
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| Abstract: | The detection system is designed carefully in order to pick -up the tault information of diesel engine＇ s high - pressure fuel pipe. The characteristics of power - spectral - density of vibration signal analyzed clearly. In the view of energy, the relations of the energy between pressure energy of fuel, strain energy ＆ elastic energy of pipe are described. So that the vibra- tion of the fuel injection system is caused mainly by the Bourdon Effect, and is one of the main causes of fuel injection system fault. |
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| Keywords: | injection pipe vibration energy elastic deformation vibration fault diagnosis |
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