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The modal characteristic analysis of LX_200 motorcycle frame

Shi Xiao-hui

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Abstract

In this paper,the CAD model of a 200 motorcycle frame is modeled with CATIA,The model is meshed with Hypermesh.Based on the finite element model,the free model analysis is done with MSC.PATRAN/NASTRAN,Enperimental modal analysis is carried out with vibration analysis system and used to validate the FEA results。Finally,we analyse the frame's former seven natural frequencies and correspond mode shapes, so that the resonance and noise will be avoided during the design of the motocycle frame.It will strengthen the stability,comfortability and security of the motocycle.It also supplies foundation in theory to improve design of the frame.

About this research paper

What this paper is about

In this paper,the CAD model of a 200 motorcycle frame is modeled with CATIA,The model is meshed with Hypermesh.Based on the finite element model,the free model analysis is done with MSC.PATRAN/NASTRAN,Enperimental modal analysis is carried out with vibration analysis system and used to validate the FEA results。Finally,we analyse the frame's former seven natural frequencies and correspond mode shapes, so that the resonance and noise will be avoided during the design of the motocycle frame.It will strengthen the stability,comfortability and security of the motocycle.It also supplies foundation in theory to improve design of the frame.

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Available abstract

In this paper,the CAD model of a 200 motorcycle frame is modeled with CATIA,The model is meshed with Hypermesh.Based on the finite element model,the free model analysis is done with MSC.PATRAN/NASTRAN,Enperimental modal analysis is carried out with vibration analysis system and used to validate the FEA results。Finally,we analyse the frame's former seven natural frequencies and correspond mode shapes, so that the resonance and noise will be avoided during the design of the motocycle frame.It will strengthen the stability,comfortability and security of the motocycle.It also supplies foundation in theory to improve design of the frame.

Key concepts: Modal analysis, Finite element method, Frame (networking), Structural engineering, Vibration, Engineering, Modal, CAD

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