Calculation of radiated noise from cylinder block using finite element model. (5th August 2014)

• Record Type: Journal Article
• Authors: Maekawa, K.; Morita, S.
• Is Part Of: International journal of vehicle design. Volume 6:Number 2(1985)
• Page Start: 228
• Page End: 239
• Publication Date: 2014-08-05
• Subjects: engine noise -- finite element method -- FEM -- modelling -- radiated noise -- vehicle design -- vehicle vibration; Motor vehicles -- Design and construction -- Periodicals; 629.231
• Languages: English
• ISSNs: 0143-3369

Abstract

The work described in this paper was undertaken as part of a program aimed at predicting engine noise and vibration characteristics at the design stage. Initially, the operating engine test and artificial excitation test were carried out with a 4–cylinder, 1500cc gasoline engine. Through these tests, radiated noise and vibration characteristics of a cylinder block were investigated and noise controlling parameters, such as radiation efficiency, forcing functions and modal damping were examined. Finally, surface response level and radiated noise from the cylinder block were calculated using finite element model by combining noise controlling parameters obtained by the tests. As a result, there was a good correlation between calculated and experimental sound power. The technique presented in this paper is thought to be applicable to predict sound power at the design stage for practical purposes.