A car engine hood with a special microcellular filling layer
A technology of automobile engine and engine hood, which is applied to vehicle components, vehicle safety arrangements, superstructure sub-assembly, etc. It can solve the problems of complex engine hood structure, high initial peak value of collision, and inability to accurately absorb the energy of head impact, etc. Achieve good energy absorption and buffering effect, long stress platform area, and simple structure
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[0026] In order to enable those skilled in the art to better understand the technical solutions and advantages of the present invention, the following describes the application in detail with reference to the accompanying drawings, but it is not intended to limit the protection scope of the present invention.
[0027] refer to figure 1 , a kind of novel automobile engine hood that the present invention proposes has special microcellular filling layer and comprises: engine hood outer panel 1, negative Poisson's ratio cellular filling layer 2, engine hood inner panel 3; Said engine hood outer panel 1 It is arranged on the outermost side; the negative Poisson's ratio cell packing layer 2 is arranged in the middle of the hood outer panel 1 and the hood inner panel 3, and the hood inner panel 3 is arranged on the innermost side, and the hood outer panel 1, The negative Poisson's ratio cellular filling layer 2 and the engine hood inner panel 3 are connected by bonding to form a sand...
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