CAJ | 학술논문

实际情况中气门摇臂铆接压机构件的变形可能会对铆接精度产生影响，多刚体模型难以满足分析精度要求，因此使用ANSYS和ADAMS建立刚－柔耦合虚拟样机模型对铆接压机构件进行动态分析。为解决ADAMS中难以对有物体发生塑性变形的系统进行仿真的问题，使用DEFORM?3D对压铆过程中铆钉变形进行仿真，以得到的“压模载荷－铆钉被压入长度”曲线作为刚度在ADAMS中建立非线性弹簧力代替铆钉。这种方法使仿真更接近实际，也使仿真结果对铆接压机的控制具有指导意义。
실제정황중기문요비류접압궤구건적변형가능회대류접정도산생영향，다강체모형난이만족분석정도요구，인차사용ANSYS화ADAMS건립강－유우합허의양궤모형대류접압궤구건진행동태분석。위해결ADAMS중난이대유물체발생소성변형적계통진행방진적문제，사용DEFORM?3D대압류과정중류정변형진행방진，이득도적“압모재하－류정피압입장도”곡선작위강도재ADAMS중건립비선성탄황력대체류정。저충방법사방진경접근실제，야사방진결과대류접압궤적공제구유지도의의。
In practice, the deformation of the parts of engine valve rocker pressure riveting machine may influence the riveting accuracy and the analysis with multi?rigid body model cannot meet the accuracy requirements. Therefore, ANSYS and ADAMS were used to build a rigid?flexible coupling model based on virtual prototyping technology and dynamic simulation was made. In order to solve the problem that it was difficult to simulate a system included plastically deformed objects, DEFORM?3D was used to analyze the de?formation of rivet in the riveting process and the “die load?compressed length of rivet” curve was gotten as the stiffness of a nonlinear spring to replace the rivet in ADAMS. This method makes the simulation close to actual situation and makes the results have guidance for control.