Simplified analysis method for collision bending of thin-wall curved beam of automotive body
A technology of automobile body and analysis method, which is applied in the research of crashworthiness analysis and simplified analysis of collision and bending of thin-walled curved beams of automobile body, can solve problems such as inapplicability of calculation methods, improve simulation accuracy and calculation efficiency, and shorten design effect of cycles
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[0020] Below with the accompanying drawings and figure 1 The single hat section parameters shown in and the material parameters in Table 1 are taken as examples to further introduce the present invention. refer to figure 1 Create a 3D model in catia for the parameters of the single hat section shown in , and then import the model into hypermesh for model processing, mesh division, adding solder joints and other pre-processing work, refer to the material parameters in Table 1, and assign material properties. Boundary conditions and load cases for detailed finite element models see image 3 As shown, that is, the left end of the model is fully constrained, and a 500KG mass point is attached to the right end. The mass point moves along the negative direction of the X axis at an initial speed of 15m / s. Create control cards in hypermesh, such as controlling collision time, load step size, output parameters, hourglass control, contact control...
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