Rigidity and Strength Analysis and Structure Optimization of one Electric Tractor's Frame Based on FEA 2007-01-4288
In this paper, the finite element model for static analysis of an electric tractor's frame is presented firstly, and the rigidity and strength of one electric tractor's frame is calculated. Based upon the analysis results, the topology and shape of this electric tractor's frame is optimized. As to the topology optimization, the optimization goal under multiple load cases is defined and the frame is optimized by two steps-one is to determine the position of the transverse rails using solid elements which can simulate the material-filling space, another is to obtain the shape of the frame in which shell elements are applied as to increase the calculation efficiency. After the topology optimization the frame's stiffness is improved significantly but there still is local stress concentration. So the shape of the stress concentration area is optimized using control points method, and the greatest stress is reduced below the strength limits.
Citation: Qin, W. and Zheng, W., "Rigidity and Strength Analysis and Structure Optimization of one Electric Tractor's Frame Based on FEA," SAE Technical Paper 2007-01-4288, 2007, https://doi.org/10.4271/2007-01-4288. Download Citation
Author(s):
Wenjie Qin, Weili Zheng
Affiliated:
Beijing Institute of Technology
Pages: 8
Event:
SAE 2007 Commercial Vehicle Engineering Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Commercial Vehicle Chassis & Suspension Systems and Effect of Tire, Suspension & Chassis Failure on Vehicle Dynamics and Control-SP-2146
Related Topics:
Frames
Optimization
Finite element analysis
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