Major compliance joint modelling survey for automotive body structures

Shahhosseini, A. Mehran; Prater, Glen; Osborne, Gary; Kuo, E. Y.; Mehta, P. R.

doi:10.1504/ijvsmt.2010.033728

Cited by 3 publications

(3 citation statements)

References 20 publications

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“…Additionally, the sti ness of the joint head is one of the important factors a ecting the sti ness of a BIW, so it is necessary to study a joint head. Shahhosseini et al [2] proposed a trispring representation of the joint and performed an experimental analysis, Fredricson [3,4] proposed a simpli ed model of the 2 joints for the analysis and optimization of joint sti ness, based on which a structure with exible joints was proposed, and Nguyen and Jang [5,6] rst used higher-order beam elements and shell elements to model a structure consisting of a thin-walled closed beam and shell to the joint, and proposed a new thin-walled beam joint modeling method to deal with the joint exibility e ect of a car body. Gaeta and Monaca [7] performed the contribution volume analysis of joints.…”

Section: Calculation Of Stiffness Of Body-in-white Jointsmentioning

confidence: 99%

Mathematical Problems in Engineering Joint Structure Stiffness Analysis of an Automotive Body in White with the Finite Element Method

Yin

Wang

et al. 2022

Mathematical Problems in Engineering

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The finite element model of the seven connection heads of an automotive body in white is established, and the stiffness calculation is carried out by taking the lower joint of the B pillar as an example. Nine stiffness values were obtained for each branch, which can be written as a 3 × 3 symmetric matrix. The front and back bending stiffness, torsional stiffness, and internal and external bending stiffness are obtained with the decoupling method. Based on this, the finite element model for unrigid and rigid joints is established, and the three stiffness ratio coefficients of each branch of the joint are calculated and evaluated. Finally, the effects of the thickness and stiffness of the sheet metal parts on the bending condition, torsion condition, first-order bending, and torsion frequency of the body in white are discussed using the regional sensitivity analysis and strain energy calculation.

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Section: Calculation Of Stiffness Of Body-in-white Jointsmentioning

confidence: 99%

Mathematical Problems in Engineering Joint Structure Stiffness Analysis of an Automotive Body in White with the Finite Element Method

Yin

Wang

et al. 2022

Mathematical Problems in Engineering

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“…The best method for modeling MCJs involves sets of elastic parameters for the individual beam branches [25]. The elastic parameters for each leg includes one parameter for angular deflection about the legs centroidal path and two additional parameters related to orthogonal angular deflections along the leg's path.…”

Section: Structural Assembliesmentioning

confidence: 99%

Vehicle Concept Model Abstractions for Integrated Geometric, Inertial, Rigid Body, Powertrain, and FE Analyses

Osborne

Prater

Lesiv

et al. 2011

Volume 9: Transportation Systems; Safety Engineering, Risk Analysis and Reliability Methods; Applied Stochastic Optimization, U

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Vehicle analysis models of any kind have their basis in some type of physical representation of the design domain. Rather than describing three-dimensional continua of a collection of components as is done in detail-level CAD models, an architecture-level abstraction describes fundamental function and arrangement, while capturing just enough physical detail to be used as the basis for a meaningful design space representation and eventually, analyses that permit architecture assessment. The design information captured by the abstractions is available at the very earliest stages of the vehicle development process, so the model itself can function as a “design space for ideas”. In this paper we describe vehicle architecture abstractions appropriate for integrated model extractions suitable for geometric, inertial, rigid body, acceleration, braking, fuel efficiency, structural, and NVH assessments. Additionally, we discuss the requisite level of information required for each analysis type.

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“…The best method for modeling MCJs involves sets of elastic parameters for the individual beam branches [14]. The elastic parameters for each leg includes one parameter for angular deflection about the legs centroidal path and two additional parameters related to orthogonal angular deflections along the leg's path.…”

Section: Structural Assembliesmentioning

confidence: 99%

An Interactive Design Space Supporting Development of Vehicle Architecture Concept Models

Osborne

Prater

Lesiv

et al. 2011

Volume 9: Transportation Systems; Safety Engineering, Risk Analysis and Reliability Methods; Applied Stochastic Optimization, U

Self Cite

View full text Add to dashboard Cite

Due to a lack of suitable analysis tools, automotive engineers are often forced to forego quantitative optimization early in the development process, when fundamental decisions establishing vehicle architecture are made. This lack of tools arises because traditional analysis models require detailed geometric descriptions of components and assembly joints in order to yield accurate results, but this information is simply not available early in the development cycle. Optimization taking place later in the cycle usually occurs at the detail design level, and tends to result in expedient solutions to performance problems that might have been more effectively addressed at the architecture level. Alternatively, late-cycle architecture changes may be imposed, but such modifications are equivalent to a huge optimization cycle covering almost the entire design process, and require discarding the detail design work used originally as the basis of the NVH model. Optimizing at the architecture level can both shorten and improve the results of a vehicle development process. In this paper we describe the requirements and implementation of a user interface for a software package supporting vehicle architecture conceptual design and analysis.

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Major compliance joint modelling survey for automotive body structures

Cited by 3 publications

References 20 publications

Mathematical Problems in Engineering Joint Structure Stiffness Analysis of an Automotive Body in White with the Finite Element Method

Mathematical Problems in Engineering Joint Structure Stiffness Analysis of an Automotive Body in White with the Finite Element Method

Vehicle Concept Model Abstractions for Integrated Geometric, Inertial, Rigid Body, Powertrain, and FE Analyses

An Interactive Design Space Supporting Development of Vehicle Architecture Concept Models

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