| A Simplified Model for Vibration Analysis of Diesel Engine Crankshaft System |
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| 作者姓名： | 雷宣扬 张桂才 陈进 宋希庚 董广明 |
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| 作者单位： | State Key Lab.of Vibration Shock and Noise，Shanghai Jiaotong Univ.，Shanghai 200030 China，State Key Lab.of Vibration Shock and Noise，Shanghai Jiaotong Univ.，Shanghai 200030 China，State Key Lab.of Vibration Shock and Noise，Shanghai Jiaotong Univ.，Shanghai 200030 China，Inst.of Internal Combustion Engine Dalian Univ. of Technology，Dalian 116023，State Key Lab.of Vibration Shock and Noise，Shanghai Jiaotong Univ.，Shanghai 200030 China |
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| 基金项目： | NationalNaturalScienceFoundationofChina(No.10176014andNo.50335030，50575146) |
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| 摘 要： | IntroductionThe design of modern diesel engine is requiredto make noise and vibration as light as possible.Inorder to successfully control the noise and vibra-tion,the vibrations of engine crankshaft must beestimated and analyzed.Dynamic simulation is avery powerful tool for ranking different design al-ternatives,so it is necessary to develop an analyti-cal model for the accurate prediction of dynamicbehavior of engine crankshaft.In earlier research,the equivalent model and the continuous beam…
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| 文章编号： | 1007-1172（2006）01-0099-05 |
| 收稿时间： | 2005-05-25 |
A Simplified Model for Vibration Analysis of Diesel Engine Crankshaft System |
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| LEI Xuan-yang,ZHANG Gui-cai,CHEN Jin,SONG Xi-geng,DONG Guang-ming.A Simplified Model for Vibration Analysis of Diesel Engine Crankshaft System[J].Journal of Shanghai Jiaotong university,2006,11(1):99-103,120. |
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| Authors: | LEI Xuan-yang ZHANG Gui-cai CHEN Jin SONG Xi-geng DONG Guang-ming |
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| Abstract: | A spatial finite element model for vibration analysis of crankshaft system was proposed. The crankshaft body was simplified as spatial rigid frame by using beam elements based on Timoshenko beam theory. The main bearings in system were simplified as linear springs and dashpots. The natural frequencies of the crankshaft system of a four in-line cylinder engine were calculated and compared with the analytical and experimental values available in other publications. In order to simulate the motion of operating crankshaft system, the gas forces, rotating masses and reciprocating masses were considered, the crankshaft and main bearings were coupled in a rotating coordinate system, and a dynamic model for vibration analysis of crankshaft system was established. By applying the dynamic model, the influence of the mass and moment of inertia of front pulley on the behavior of crankshaft vibration was investigated. |
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| Keywords: | crankshaft finite element timoshenko beam vibration analysis |
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