Fengyu Xu
Changchun University of Science and Technology
Modal analysisAudio frequencyNoise controlPhysicsFinite element methodTorqueNoiseComposite materialNoise reductionCylinder headConnecting rodMaterials scienceVibrationTurbochargerAcousticsOil pumpCrankshaftCasingJet engineAutomotive engineStructural engineeringSound pressureModalSize effect on structural strengthMechanical engineeringNatural frequencyThrustEnclosure
3Publications
0Citations
Publications 3
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#1Yonghua Wang (Changchun University of Science and Technology)H-Index: 3
#2Zheming Liu (Changchun University of Science and Technology)
Last. Huadong Yu (Changchun University of Science and Technology)H-Index: 11
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ABSTRACTThe present experimental study has been conducted to evaluate the impact of an acoustic enclosure of high-pressure oil pump, which is used to reduce the noise emission of an automobile engine. The enclosure is double-layered and made of nylon 66 (PA66) as an outer structure and polyurethane foam as the inner material. The sound signals of the engine were measured separately without an acoustic enclosure and covered by the enclosure. The signals were measured with 5 microphones around the...
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#1Qianyi Yu (Changchun University of Science and Technology)H-Index: 1
#2Wen Cheng (Changchun University of Science and Technology)H-Index: 1
Last. Yonghua Wang (JLU: Jilin University)
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As the demand for high speed and light weight of automobiles continues to increase, the requirements for power, volume and weight of the engine are also increasing. In the design and development of automobile engine cylinder head, the finite element analysis of its structural strength, stiffness and finite element model is used to analyze the static strength and finite element modal analysis of the cylinder head. The natural frequency and mode state of the cylinder head structure under the free ...
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#1Fengyu Xu (Changchun University of Science and Technology)
#2Yonghua Wang (Changchun University of Science and Technology)H-Index: 1
Last. Huadong Yu (Changchun University of Science and Technology)H-Index: 11
view all 6 authors...
Based on the background of engine lightweight and low noise, this paper used the 3D modeling software Pro/E to build the mathematical model of a high speed engine. The finite element mesh was divided by ICEM. The structural vibration of the engine complete machine was calculated by combining finite element theory with multi-body dynamics. By using the Timing Drive and Power Unit in AVL Excite, the multi-input parameter’s coupled calculation of the gas distribution mechanism and crankshaft connec...
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