| 混合动力挖掘机轴系扭振测试 |
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| 引用本文： | 黄中华,谢雅,邓奕,刘质.混合动力挖掘机轴系扭振测试[J].中国工程机械学报,2013(1):75-77. |
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| 作者姓名： | 黄中华 谢雅 邓奕 刘质 |
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| 作者单位： | 湖南工程学院机械工程学院;中南大学机电工程学院 |
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| 基金项目： | 新世纪优秀人才支持计划资助项目(NCET-11-0968);教育部科学技术研究重点资助项目(212123);湖南省教育厅重点资助项目(11A206) |
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| 摘 要： | 以6t混合动力挖掘机动力系统相关技术参数为设计依据，建立了混合动力挖掘机轴系扭振测试实验台，提出了轴系扭振测试方案．对不同油门开度下轴系的最大扭转角进行了实验测试和分析．实验结果表明：扭振是轴系的固有特性；不同转速下轴系的最大扭转角均发生在2f0（f0为混合动力轴系的工作转频）处，表明引起轴系扭振的激励频率为2f0；不同转速下轴系扭振的激励频率主要集中在0．5，0～2．0f0，表明高频激励对轴系的扭振贡献很小；混合动力系统轴系扭振产生的主要激励源是柴油机，而不是电动机．
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| 关 键 词： | 混合动力挖掘机 扭振 轴系 测试 |
Torsion-vibration testing on hybrid excavator shafting |
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| HUANG Zhong-hua,XIE Ya,DENG Yi,LIU Zhi.Torsion-vibration testing on hybrid excavator shafting[J].Chinese Journal of Construction Machinery,2013(1):75-77. |
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| Authors: | HUANG Zhong-hua XIE Ya DENG Yi LIU Zhi |
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| Affiliation: | 1.School of Mechanical Engineering,Hunan Institute of Engineering,Xiangtan 411104,China; 2.School of Mechanical and Electrical Engineering,Central South University,Changsha 410083,China) |
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| Abstract: | According to design specifications of 6-toonage excavator hybrid-powered system, a testing platform, together with relevant testing schemes, is initially first established for torsion-vibration tests on hybrid excavators. Thereafter, the maximum shafting torsion angles under different throttle apertures are tested and analyzed. Eventually, it is found from experimental results that the torsion-vibration is the inherent shafting characteristic,whereas the maximum shafting torsion angle with different rotary speeds occurs in 2f0, i. e. the exciting frequency of shafting torsion-vibration from 0.5f0 to 2f0. As well, it is indicated that the high-frequency excitations impact litter on shafting torsion-vibration. To this end, the exciting source of shafting torsion - vibration derives from diesel engines rather than motors. |
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| Keywords: | hybrid excavator torsion-vibration shafting testing |
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