Three-Dimensional Design of a Rear-Drive Self-Balancing Electric Wheelchair Chassis

Yang Gao; Aihua Tian; Zhesheng Hou

doi:10.6919/ICJE.202603_12(3).0021

Authors

Yang Gao
Aihua Tian
Zhesheng Hou

DOI:

https://doi.org/10.6919/ICJE.202603_12(3).0021

Keywords:

Wheelchair; Chassis; ANSYS; Finite Element Analysis; Self-balancing.

Abstract

This study presents the design of a rear-drive self-balancing electric wheelchair chassis. Based on the characteristics of practical application scenarios and the requirements for medical device products, the overall structure and layout of the chassis were determined. Key components including the chassis structure, drive system, self-balancing linear actuators, and central frame were designed. The overall three-dimensional modeling and virtual assembly were carried out using the 3D modeling software SolidWorks. Mechanical analysis of the chassis frame was performed using the finite element analysis software ANSYS to optimize the structural design. Static and dynamic characteristic analyses of the chassis structure were conducted based on ANSYS. The results indicate that the chassis structure design is reasonable, with no resonance occurring during operation. Under static full-load and uniform-speed full-load conditions, the structural strength meets the design requirements for practical work. Through a combination of theoretical analysis and prototype testing, the various performance characteristics of the self-balancing wheelchair chassis system were verified. The experimental results demonstrate that the chassis possesses good motion control performance, stability, and comfort, satisfying the requirements for practical operation.

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