Joint Simulation Method In Conception Design Of Car Body Structure

Base on neglecting the study of the joint in the conception design, the torsion stiffness, the bending stiffness and the model of the whole car might be resulted in much error, especially in the change of the torsion stiffness. So far, the study of the concept joint had not been sufficient.The works as follow were made for these conditions:(1) The way of non-coupling was used to simulate the joint element model, in conception method to design the auto body structure.(2) This paper also describes the process how to simulate the concept joint model, the parts which were made up of the concept joint element and the way how to calculate the stiffness of the normal joint model.(3) The way to solve the stiffness of the joint element based on the physical properties was carried out. Through a large number of CAE simulation experiment on joint stiffness, the measurement formula was studied.(4) For validating the feasible of the way to simulate the joint model, the experiment that the compare between the white bodies model with joint model and that without joint model was expensed.