| 往复压缩机轴系断轴烧瓦及结构优化 |
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| 引用本文： | 许增金,王世杰,李媛.往复压缩机轴系断轴烧瓦及结构优化[J].沈阳工业大学学报,2011,33(3):270-275. |
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| 作者姓名： | 许增金 王世杰 李媛 |
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| 作者单位： | 沈阳工业大学机械工程学院;沈阳工业大学理学院; |
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| 基金项目： | 国家863计划资助项目(2006AA05Z134) |
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| 摘 要： | 针对某6列往复压缩机出现断轴、烧瓦的现象，利用有限元法对不同典型方案进行模态和动态响应数值模拟，提出了旨在减小轴系固有频率的优化方案.分析结果表明，断轴、烧瓦是轴系扭转共振所致，通过减小轴系各列间轴段直径，使7倍压缩机转速与1阶扭转固有频率比从1.036增加到1.056，共振现象即可消失.该优化方案不仅避免了机组振动，解决了断轴、烧瓦问题，而且还有效地降低了制造成本.
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| 关 键 词： | 往复压缩机 主轴 连杆瓦 扭转共振 模态分析 动态响应分析 频率比 优化设计 |
Main shaft failure and bearing scuff of crankshaft system and structural optimization of reciprocating compressor |
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| XU Zeng-jina,WANG Shi-jiea,LI Yuanb.Main shaft failure and bearing scuff of crankshaft system and structural optimization of reciprocating compressor[J].Journal of Shenyang University of Technology,2011,33(3):270-275. |
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| Authors: | XU Zeng-jina WANG Shi-jiea LI Yuanb |
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| Affiliation: | XU Zeng-jina,WANG Shi-jiea,LI Yuanb(a.School of Mechanical Engineering,b.School of Science,Shenyang University of Technology,Shenyang 110870,China) |
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| Abstract: | In order to solve the shaft failure and bearing scuff occurred frequently in a six-crank reciprocating compressor,the numerical simulation of mode and dynamic response for the crankshaft system was performed with finite element method(FEM).The optimization scheme to reduce the natural frequency of crankshaft system was proposed.The analysis results show that the shaft failure and bearing scuff result from the torsional vibration of crankshaft system.Through reducing the shaft diameter between different cran... |
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| Keywords: | reciprocating compressor main shaft connecting rod bearing torsional vibration modal analysis dynamic response analysis frequency ratio optimization design |
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