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Optimization of Torsional Stiffness for Heavy Commercial Vehicle chassis frame

Automotive Innovation 2018年第4期1卷 352-361页

作者： S.H.Gawande A.A.Muley R.N.Yerrawar Department of Mechanical Engineering M.E.S.College of Engineering PuneS.P.Pune UniversityPuneIndia

The chassis frame is the backbone of a heavy commercial vehicle(HCV).Its main purpose is to securely carry the determined load under all designed operative ***,it should be rigid enough to withstand the various forces acting on *** objective of this study was to develop a stiffness model to select an optimum cross section with determined torsional ***’s method of optimization was adapted to develop a stiffness equation and select a section with a determined torsional stiffness and a requiredmass *** stiffness obtained from the developed stiffnessmodel and finite element analysis(FEA)is a close match,which proves the validity of the proposed *** section with the maximum torsional stiffness was used for frame-level optimization to improve the torsional and lateral stiffness of the overall chassis *** strain energy absorption capacity of the cross member improved by changing the section of the cross *** using the optimized section,the torsional stiffness of the frame improved by 44%and a lateral stiffness of 10%was *** Creo software was used for modeling and FEA was performed with the Hypermesh software.

关键词： chassis frame Torsional stiffness FEA Cross members Deformation

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Modal Correlation Based Analysis on Dynamic Characters of a Commercial Semi-Trailer's chassis frames

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Journal of Beijing Institute of Technology 2007年第2期16卷 140-145页

作者：冯慧华左正兴廖日东龙凯 School of Mechanical and Vehicular Engineering Beijing Institute of Technology

In order to evaluate two different schemes＇ structural dynamic characters, dynamic response analysis of a commercial truck＇s main chassis frames is carried out. On the basis of correlation study between the tested and calculated modal results, the assembled frames＇ finite element analysis （FEA） models with sufficient precision are built up. Random response analysis in frequency domain is carried out with these FEA models, RMS values of yon Mises and main principle stresses of these two frames are obtained. It shows that the analysis resuits of the distributing tendency and concrete value ranges are coincident very well with test results. And from the results, it could be concluded that frames of scheme A endures relative better loading conditions and should be adopted as the final scheme.

关键词： semi-trailer chassis frame random response modal correlation finite element analysis

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