Study of Side Thrust of Diesel Piston Based on Time-Domain Finite Element Method

Da Yuan Zheng; Yi Peng Cao; Wen Ping Zhang

doi:10.4028/www.scientific.net/AMM.229-231.461

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 229-231Study of Side Thrust of Diesel Piston Based on...

Study of Side Thrust of Diesel Piston Based on Time-Domain Finite Element Method

Abstract:

Grasping the transmission of side thrust of piston is one of the effective methods to control engine vibration and noise. The paper uses time-domain FEM to study engine vibration. Firstly the finite element model is established after simplifications and modal analysis is conducted. Then the side thrust of piston is calculated and applied to cylinder liner using equivalent nodal load. The surface vibration is gained, from which it can be concluded that the displacements of upper block and top cylinder head reflect changes in cylinder pressure, while the vibration of observation window is complex. Finally, the vibration in a variety of engine working conditions is analyzed. Under load characteristics, the amplitude of engine surface vibration changes with loading; under propulsion characteristics, the surface vibration is essentially the same.

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Periodical:

Applied Mechanics and Materials (Volumes 229-231)

Pages:

461-464

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.229-231.461

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Online since:

November 2012

Authors:

Da Yuan Zheng, Yi Peng Cao, Wen Ping Zhang

Keywords:

Characteristic Analysis, Side Thrust of Piston, Time-Domain FEM

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