Abstract
In order to solve the question of crack of the auxiliary frame of mixer truck, especially with the life of the triangle welding position is low, the triangle support of auxiliary frame optimization design is put forward Firstly, three dimensional structure model of auxiliary frame is established by Pro/E and the model is imported into HyperMesh software for meshing. The solver RADIOSS is used to calculate the maximum stress and the positions at the different full load conditions. Including the static, left front wheel lifted up by 210 mm, the right rear wheels (double) lifted up by 210 mm and the left front and right rear wheels lifted simultaneously up by 210 mm. Then the experimental vehicle test is performed. The test results and simulation results are compared and show a good consistency and the accuracy of the finite element model is validated. Then the three optimization design schemes of the triangle are put forward and the maximum stress of the optimal auxiliary frame are calculated in contrast with the original stress. The scheme 2 is found to be the most optimal, which provides an effective method for solving the fatigue of the auxiliary frame.
Highlights
Due to cyclic stresses and strain endured from a variety of loading and unloading and complex roads systems, the cracks often emerge at the auxiliary frame of mixer trucks, especially at the welding joints on the triangle plate of the auxiliary frame, leading to a lot of repetitive repairs
There are many research papers studying the frame optimization design There are some research papers which propose to optimize the dump truck frame, front auxiliary frame and truck frame based on sensitivity analysis method
In order to solve the auxiliary frame crack problem of mixer truck, the 3D model is built by Pro/E software it is imported into HyperMesh software for meshing, and the solution is solved by the RADIOSS analysis solver
Summary
Due to cyclic stresses and strain endured from a variety of loading and unloading and complex roads systems, the cracks often emerge at the auxiliary frame of mixer trucks, especially at the welding joints on the triangle plate of the auxiliary frame, leading to a lot of repetitive repairs. The auxiliary frame triangle plate structure optimization design is proposed. There are many research papers studying the frame optimization design There are some research papers which propose to optimize the dump truck frame, front auxiliary frame and truck frame based on sensitivity analysis method. In order to solve the auxiliary frame crack problem of mixer truck, the 3D model is built by Pro/E software it is imported into HyperMesh software for meshing, and the solution is solved by the RADIOSS analysis solver. Under different conditions and full load, the maximum stress of auxiliary frame triangle plate of the mixer truck is calculated. The optimization design schemes of triangle plate are proposed, the maximum stress at possible emerging locations are calculated by finite element method FEM. Observing that the maximum stresses are decreased and the optimization goal is realized
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