Finite Element Analysis And Optimization Design Of The Frame Of A Typed Heavy Truck

The frame is one of the core components of the automobile assembly.Car frame withstands complex forces from uneven ground and auto parts.So,the design of the frame will play a vital role in the entire car.Traditional design methods are no longer sufficient for modern car design.The extensive application of the finite element method in electronic computers has brought a new technological revolution to the calculation and analysis of automobile frames.Using the finite element method to analyze the performance of the frame,it can improve the frame structure,improve the dynamic and static performance of the frame,reduce the production and design costs of the frame,and it is of great significance to improve the market competitiveness of automobiles.This subject takes a heavy-duty cargo truck frame as the research object.The finite element model of the frame is established using the shell element mesh in the Hypermesh software,and the static and dynamic performance calculation of the frame is completed using ANSYS solver.The calculation results show that the strength of the frame under full load bending,full load torsion,full load turning,and full load emergency braking meets the design requirements.Modal analysis shows that the dynamic performance of the frame also meets the requirements,frame has optimized space.Based on the original frame,use OptiStruct tool to optimize the topology of the frame.After topology optimization,the number of frame beams is reduced,and the thickness of some beams is reduced.Under the four working conditions,the stress on the frame has a small increase,which all meets the design requirements for the strength of the frame.The dynamic performance of the optimized frame also meets design requirements.In practical projects,it is feasible for the frame to use the topology optimization technology based on the finite element method,which can obtain the optimal layout of the frame material and ensure the frame performance.You can also use size and shape optimization techniques in subsequent studies to achieve lightweight design of the frame.