A Rear-End Barrier Impact Simulation Model for Unibody Passenger Cars

Lin, Kuang-Huei

doi:10.4271/730156

Cited by 15 publications

(2 citation statements)

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“…The load-deflection characteristics of each spring were determined based on experimental observations. Kamal (1970) and Lin (1973) proposed further refinements to the previous two models by using eight nonlinear springs with three masses to simulate frontal impact (Kamal, 1970) and seven nonlinear springs to simulate rear barrier impact (Lin, 1973).…”

Section: Simplifying Approachesmentioning

confidence: 99%

Behaviour and Design of Steel Columns Subjected to Vehicle Impact

Al-Thairy

Wang

2014

AMM

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The main objective of this study is to develop a simplified analytical approach to predict the critical velocity of vehicle impact on steel columns. This method utilizes the energy balance principle with a quasi-static approximation of the steel column response. Results of ABAQUS numerical simulations of the dynamic impact response of axially loaded steel columns under vehicle impact are used to validate the proposed method. To account for the effect of vehicle impact, a simplified numerical vehicle model has been adopted using a spring-mass system with a bilinear spring load-deformation relationship. The validation results show good agreement between the analytical method results and the numerical results with the analytical results tending to be on the safe side.

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Section: Simplifying Approachesmentioning

confidence: 99%

Behaviour and Design of Steel Columns Subjected to Vehicle Impact

Al-Thairy

Wang

2014

AMM

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“…These forcedeformation curves are then used as input to the system analysis. The system analysis consists of a one-dimensional nonlinear spring-mass simulation (Kamal 1970;Lin 1973) and yields a useful approximation of the vehicle's dynamic behaviour during impact. The spring-mass simulation model is made up of a collection of lumped masses, representing the major non-structural masses in the vehicle, connected together by a number of nonlinear springs representing the gross behaviour of the primary structural and non-structural components.…”

Section: Crashworthiness Analysismentioning

confidence: 99%

Structural optimization with crashworthiness constraints

Lust

1992

Structural Optimization

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An automated structural design methodology has been devised which simultaneously considers design criteria associated with both linear elastic and crashworthiness loading conditions. This method is developed within the context of a nonlinear mathematical programming based structural optimization capability using an efficient two-phased crashworthiness analysis technique. Specially constructed nonlinear approximations for the crashworthiness constraints are employed to further reduce the computational burden during the optimization process. This methodology is demonstrated on an automobile structural design problem. It is shown that more mass efficient designs can be obtained by simultaneously considering elastic and crashworthiness design criteria as compared to a sequential approach in which the structure is first designed for the elastic loads and then modified to satisfy the crashworthiness criteria.

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Flexibility in Multibody Dynamics with Applications to Crashworthiness

Ambrósio

Pereira

1994

Computer-Aided Analysis of Rigid and Flexible Mechanical Systems

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A Rear-End Barrier Impact Simulation Model for Unibody Passenger Cars

Cited by 15 publications

References 0 publications

Behaviour and Design of Steel Columns Subjected to Vehicle Impact

Behaviour and Design of Steel Columns Subjected to Vehicle Impact

Structural optimization with crashworthiness constraints

Flexibility in Multibody Dynamics with Applications to Crashworthiness

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