Bumper energy absorber with local stiffening
A vehicle bumper structure includes a lateral arrangement of hollow lobes forming an energy absorption apparatus attached to a beam. The lobes are designed to provide a predetermined peak force resistance and a predetermined energy absorption capability. Local stiffening to increase the buckling res...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A vehicle bumper structure includes a lateral arrangement of hollow lobes forming an energy absorption apparatus attached to a beam. The lobes are designed to provide a predetermined peak force resistance and a predetermined energy absorption capability. Local stiffening to increase the buckling resistance and energy absorption is provided by increased stiffness regions provided in one or more locations on one or more of the lobes. The local increased stiffness regions can be provided by an increased wall thickness surrounding apertures formed in selected shear walls of the lobes or a laterally outward offset in the shape of the shear walls of the lobes. |
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