Design and Feasibility Test of an Indigenous Motorized Wheel for Manual Wheelchair

Abstract

The wheelchair is essential for people with either spinal injury, limb injury, or trauma patients. The need at present is to customize the wheelchair based on the requirements of the disabled person. The maintenance and customization of a manual wheelchair is both simple and cost-effective when compared to powered wheelchairs, which are expensive and difficult to maintain in the long run. Accordingly, in this article, an attempt has been made to bring the facilities available in a powered wheelchair into the manual wheelchair, making it affordable to common people. Feasibility of a distinct manual wheelchair rear wheel rim is examined for various hub motor weights. The rear wheel of the manual wheelchair was replaced with an in-wheel direct drive hub-motor system. The proposed wheel model was designed using CATIA – V5 and an analysis was done using ANSYS software. A structural analysis was carried out to check the reliability and durability of the proposed wheel for different materials by changing hub-motor weights at various loading conditions. The nature of vibrations with respect to natural mode frequencies are found through modal analysis. Finally, the dynamic behavior of the proposed motorized wheel was examined using harmonic response analysis. Simulation results show the robustness of the proposed design and viability for real-time implementation.

Exploration on Elderly Accessible Information Interaction Design Using Fuzzy Control

“…Traditional wheelchairs generally need extra assistance to manipulate and, thus, increase the labor cost. The electric wheelchair controls the movement through the joystick, with certain potential safety concerns in use [11,12]. Against these problems, this section designs a wheelchair IIIS with a personnel monitoring function and automatically obstacle avoidance function.…”

Research and Application of CNC Machining Method Based on CAD/CAM/Robot Integration

“…Under complex environment and changeable conditions, machining parameters such as tool combination, workpiece material, spindle speed, feed rate, tool path, depth of cut, step length, and machining allowance cannot be used in the eld environment according to external interference. Without real-time dynamic adjustment of random factors, and it is impossible to randomly modify the set amount in CAD/CAM through the feedback control link, thus a ecting the work e ciency of CNC and product processing quality [4]. e fixed program control mode and closed system structure of the traditional CNC system limit the development of CNC to multivariable intelligent control, and it is no longer suitable for the increasingly complex manufacturing process.…”