汽车电动尾门撑杆受力分析及其优化设计

Force Analysis and Optimization Design of Automobile Electric Tailgate Brace Rod

电动尾门的应用方便了乘客开关尾门,提高了用车的舒适度。分析了汽车电动尾门撑杆铰链处的受力情况,运用ADAMS软件简化了电动尾门的力学模型,并进行了运动仿真,得出了铰链位置处的受力曲线。结合力学模型和仿真结果,设计了撑杆内置电机的输出力、助力弹簧的弹力和弹簧的弹性系数,得出了尾门铰链在尾门不同开合位置时的受力情况。运用ANSYS软件分析和优化了电动撑杆运动到危险位置时所受应力和变形情况,使电动支撑杆在运动过程中受力更加合理和可靠。

The application of the electric tialgate facilitates passengers to switch the tialgate and improves the comfort of the vehicle.The force on the hinges of electric tialgate brace rod is analyzed.The mechanical model of electric tialgate is simplified by ADAMS software,and the motion simulation is carried out.The force curve at the hinges is obtained.Combining with the mechanical model and simulation results,the output force of the brace built-in motor,the elastic force of the booster spring and the elastic coefficient of the spring are designed,and the forces acting on the hinges of the tialgate at different opening and closing positions are obtained.By using ANSYS software,the stress and deformation of the electric support rod when it moves to dangerous position are analyzed and optimized,so that the force of the electric support rod is more reasonable and reliable in the course of movement.