Structural Design of Aluminum Space Frame with Battery Tray 960524
An aluminum space frame is the main structure of our recently developed electric vehicle. The frame consists of extruded members. As each extrusion has the same cross section, it is possible to accomplish an optimal design of the whole space frame by setting up design variables for each extruded member.
Size optimization was completed to minimize the weight of the space frame at the desired overall stiffnesses, service loads, and desired natural frequencies. A tray structure was proposed for the batteries of the electric vehicle, and as a result, the overall stiffness was improved. In addtion, it became easier to install the batteries. A method to reduce the weight of tray was tried within the design constraints. Special reinforcements were used for weak parts between each member.
The space frame was modeled as shell elements for the numerical analysis. The structural design of the space frame compensated for the increased weight by batteries making the lightweight, 4-seat, electric vehicle a reality.
Citation: Chung, T., Lee, Y., and Kim, C., "Structural Design of Aluminum Space Frame with Battery Tray," SAE Technical Paper 960524, 1996, https://doi.org/10.4271/960524. Download Citation
Author(s):
Tae-Eun Chung, Yong-Rae Lee, Chang-Soo Kim
Affiliated:
Institute for Advanced Engrg.
Pages: 11
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
New Tools and Techniques for Product and Process Integration-SP-1146
Related Topics:
Electric vehicles
Batteries
Frames
Extrusion
Aluminum
Forming
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