Study on Surface Radiation Noise of a Diesel Engine Based on FEM

Ye Miao Zhao; Xiao Hui Cao; Chen Hai Guo; Qing Zhen Ma

doi:10.4028/www.scientific.net/AMR.774-776.17

Paper Titles

Preface and Conference Organisation

Topology Optimization of Passive Constrained Layer Damping on Plates with Respect to Noise Control
p.3

Structure Simulation Analysis of Piezoelectric Energy Harvesting Device
p.7

SRSM-Based Stochastic Model Updating Method
p.12

Study on Surface Radiation Noise of a Diesel Engine Based on FEM
p.17

Vibration Simulations of Double-Walled Carbon Nanotubes by Finite Element Method
p.21

Finite Element Analysis of Tandem Rubber O-Ring Sealing Structure at the End of Shaft
p.25

Simulation and Test for Nonlinear Dynamic Specialty of Rubber Mounting
p.30

Synthetical Dynamic Balancing of Mechanism Based on Optimization Simulation
p.35

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 774-776Study on Surface Radiation Noise of a Diesel...

Study on Surface Radiation Noise of a Diesel Engine Based on FEM

Abstract:

To evaluate the noise of a diesel engine and provide the basis for the next step for noise reduction, a boundary element model of the diesel engine has been built and finite element software is used to analyze the noise of the engine. Surface vibration velocity distribution, radiation noise spectrum, sound pressure distribution and total noise level are calculated. The calculation results obtained show that the most representative three points of the peak of SPL (sound pressure level) are 500Hz, 1200Hz and 1950Hz; total SPL is 108.99dB; the main sources of the noise of the diesel engine are oil pan, gear chamber cover and flywheel housing, these three parts should be prior; the noise of the lower part and left and right part (the gear chamber cover side and flywheel housing side) of the engine is greater than the upper part and front and rear part; improving the suspension mechanism of the internal combustion engine, optimizing the oil sump, flywheel housing and gear chamber cover and strengthening the rigidity of the skirt of the engine body can be used as the primary means of noise reduction.

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Periodical:

Advanced Materials Research (Volumes 774-776)

Pages:

17-20

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.774-776.17

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Online since:

September 2013

Authors:

Ye Miao Zhao, Xiao Hui Cao, Chen Hai Guo, Qing Zhen Ma

Keywords:

Boundary Element, Diesel Engine, Finite Element, Radiation Noise

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