Vibration study of a vehicle suspension assembly with the finite element method

The main steps of the present work represent a methodology of analysing various vibration effects over suspension mechanical parts of a vehicle. A McPherson type suspension from an existing vehicle was created using CAD software. Using the CAD model as input, a finite element model of the suspension...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 252; no. 1; pp. 12030 - 12041
Main Authors Marinescu, Gabriel Cătălin, Castravete, Ştefan-Cristian, Dumitru, Nicolae
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.10.2017
Subjects
Assembly
Computer simulation
Finite element method
Geometric nonlinearity
Mathematical analysis
Mathematical models
Modal analysis
Random excitation
Software
Suspension systems
Vibration analysis
Vibration effects
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Summary:The main steps of the present work represent a methodology of analysing various vibration effects over suspension mechanical parts of a vehicle. A McPherson type suspension from an existing vehicle was created using CAD software. Using the CAD model as input, a finite element model of the suspension assembly was developed. Abaqus finite element analysis software was used to pre-process, solve, and post-process the results. Geometric nonlinearities are included in the model. Severe sources of nonlinearities such us friction and contact are also included in the model. The McPherson spring is modelled as linear spring. The analysis include several steps: preload, modal analysis, the reduction of the model to 200 generalized coordinates, a deterministic external excitation, a random excitation that comes from different types of roads. The vibration data used as an input for the simulation were previously obtained by experimental means. Mathematical expressions used for the simulation were also presented in the paper.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/252/1/012030