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It is also shown that 15 proper orthogonal modes are sufficient to reconstruct the dynamics of the impacting beam under a 3% error margin.
The bounds corresponding to a passive and displacement-limited nonlinearity are compared with Monte Carlo experimental and numerical results from an impacting beam test rig.
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The approach is applied to a beam impacting a stop, a plate impacting a stop, and to two impacting beams, and in each case a comparison is made with detailed numerical simulations.
In this study, a composite side-door impact beam for passenger cars was designed to reduce the weight of steel impact beam using glass fiber reinforced composite.
The development of door impact beam by hot stamping is illustrated in this paper.
For the beam with a cubic spring attachment, the forcing amplitude is the varied parameter, while for the vibro-impact beam, this parameter is the clearance between the very stiff stops and the beam at static equilibrium.
In order to increase the energy absorption characteristics of the composite impact beam, the mechanical joint was designed to fail with fiber shear-out mode, from which the impact energy might be dissipated during the side-door collision of passenger cars.
As an example, in automotive industry, SPR is employed to join the aluminium side impact beam with steel sheet stampings.
Adding air-bags, anti-lock brakes, stability control and side-impact beams has saved countless lives, but it has increased vehicle weights disproportionately.
It is concluded that the presented simulation results can provide significant contribution to the design of side-door impact beams and passive safety research.
All those features add weight and size, as have government- and market-mandated safety features, such as side impact beams and airbags.
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