| PP-LGF进气歧管的性能研究 |
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| 引用本文： | 李志通,高梦鸾,尹晶晶,李贺,崔文兵,魏元生.PP-LGF进气歧管的性能研究[J].车用发动机,2016(3):83-87. |
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| 作者姓名： | 李志通 高梦鸾 尹晶晶 李贺 崔文兵 魏元生 |
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| 作者单位： | 长城汽车股份有限公司技术中心 ,河北保定 071000;河北省汽车工程技术研究中心 ,河北保定 071000 |
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| 基金项目： | 国汽(北京)汽车轻量化技术研究院有限公司支持(QYY-KT-2013-001) |
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| 摘 要： | 为了研究PP-LGF(PP长玻纤)进气歧管的性能及机理,首先利用Moldflow仿真手段对比分析了PA-GF(PA短玻纤)与PP-LGF进气歧管中纤维及残余应力分布情况,再按照标准试验方法利用相应的工装夹具开展气密爆破、老化耐久、可靠性台架等性能检测分析.结果表明:PP-LGF相比PA-GF残余应力分布较为均匀;PP-LGF进气歧管泄漏量在7.5 mL/min左右,水爆压力最高达到了0.740 MPa.上述测试均能够满足1.5 L及以下排量自然吸气发动机的使用要求.
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| 关 键 词： | PP长玻纤 进气歧管 仿真 气密性 老化 可靠性 |
Performance of PP-LGF Intake Manifold |
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| LI Zhitong,GAO Mengluan,YIN Jingjing,LI He,CUI Wenbing,WEI Yuansheng.Performance of PP-LGF Intake Manifold[J].Vehicle Engine,2016(3):83-87. |
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| Authors: | LI Zhitong GAO Mengluan YIN Jingjing LI He CUI Wenbing WEI Yuansheng |
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| Abstract: | To study the property and mechanism of PP-LGF (PP long glass fiber) intake manifold ,the glass fiber and residual stress distribution of PA-GF (PA short glass fiber) and PP-LGF fiber intake manifold were compared by the simulation method of Moldflow and the air tightness ,burst strength ,aging property and reliability performance were tested and analyzed accord-ing to the standard test method by using the relevant fixing tools .The results showed that the residual stress distribution of PP-LGF intake manifold was more uniform .The leakage rate of PP-LGF intake manifold was about 7 .5 mL/min and the maxi-mum bearing pressure for water was 0 .74 MPa .All the tests mentioned before could meet the requirements of all naturally as-pirated engines with displacement of 1 .5 L and below . |
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| Keywords: | PP long glass fiber (PP-LGF) intake manifold simulation air tightness aging reliability |
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