Topology Optimization of Truck Frame Model Using ANSYS Workbench

In ANSYS Workbench, the Shape Optimization module is utilized for topology optimization of the frame. The static analysis still employs the simplified model for the selection of the analytical model. The frame is assembled, and bound contact is used for the contact relationship between the parts. The frame model is meshed using Solid186, with a mesh size of 20mm. The frame material remains Q345 structural steel, with a density of 7850Kg/m³, a modulus of elasticity of 2.0e+11N/mm², and a Poisson's ratio of 0.3. For topology optimization, the full-load bending condition is chosen as the boundary condition to conduct the optimization design. The optimized model is then evaluated for strength and stiffness under various conditions to determine if the frame still meets the specified requirements. Figure 8 illustrates the topology optimization results of the frame. In Fig. 8, the red areas indicate parts that can be removed with minimal effect on the frame's performance. The grey areas indicate parts that are recommended to be retained as their deletion would have a greater effect on the frame's performance. The green areas represent critical parts that can be either removed or retained. Based on the results of this topology optimization analysis, the frame model is improved in SolidWorks for the truck frame model, as shown in Fig. 9.