scholarly journals Design and Optimization of Direct Drive Motor Alloy Wheel for Manual Wheelchair

2021 ◽  
Vol 10 (4) ◽  
pp. 1-13
Author(s):  
Sateesh Reddy Avutu ◽  
Sudip Paul

The wheelchair is the primary rehabilitation device used to enable the movement capability of disabled people. To provide an appropriate wheelchair, the doctor will suggest the necessary customization has to be made on the existing one. However, the customization of a manual wheelchair is easy and cost-effective compared with the powered wheelchair due to simple structure and spare parts availability in the market... Because of the above, a novel concept is proposed. The rear wheels of the manual wheelchair are replaced with a Direct drive motor alloy wheel. CATIA – V5 is utilized to design the proposed wheel and ANSYS software is used to check its performance at different load conditions. The stress-bearing capability of different materials for various Direct drive motor weights is observed through structural analysis. The natural mode frequencies are found using modal analysis and its nature of vibrations is verified. The harmonic response analysis is used to test the nature of deformation and stress concerning natural frequencies for the applied force.

2021 ◽  
Vol 10 (4) ◽  
pp. 0-0

The wheelchair is the primary rehabilitation device used to enable the movement capability of disabled people. To provide an appropriate wheelchair, the doctor will suggest the necessary customization has to be made on the existing one. However, the customization of a manual wheelchair is easy and cost-effective compared with the powered wheelchair due to simple structure and spare parts availability in the market... Because of the above, a novel concept is proposed. The rear wheels of the manual wheelchair are replaced with a Direct drive motor alloy wheel. CATIA – V5 is utilized to design the proposed wheel and ANSYS software is used to check its performance at different load conditions. The stress-bearing capability of different materials for various Direct drive motor weights is observed through structural analysis. The natural mode frequencies are found using modal analysis and its nature of vibrations is verified. The harmonic response analysis is used to test the nature of deformation and stress concerning natural frequencies for the applied force.


2021 ◽  
Vol 10 (4) ◽  
pp. 0-0

The wheelchair is the primary rehabilitation device used to enable the movement capability of disabled people. To provide an appropriate wheelchair, the doctor will suggest the necessary customization has to be made on the existing one. However, the customization of a manual wheelchair is easy and cost-effective compared with the powered wheelchair due to simple structure and spare parts availability in the market... Because of the above, a novel concept is proposed. The rear wheels of the manual wheelchair are replaced with a Direct drive motor alloy wheel. CATIA – V5 is utilized to design the proposed wheel and ANSYS software is used to check its performance at different load conditions. The stress-bearing capability of different materials for various Direct drive motor weights is observed through structural analysis. The natural mode frequencies are found using modal analysis and its nature of vibrations is verified. The harmonic response analysis is used to test the nature of deformation and stress concerning natural frequencies for the applied force.


Author(s):  
Sateesh Reddy Avutu ◽  
Sudip Paul ◽  
Dinesh Bhatia

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.


Author(s):  
Muditha K. M. Dassanayake ◽  
Masaomi Tsutsumi

In this paper, the motion performances of the two rotary tables which are driven by roller gear cam and direct drive motor are measured and compared. The table with roller gear cam was controlled in semi-closed loop and full-closed loop methods while the other was controlled only in full-closed loop method. In the measurements, the positioning accuracy and repeatability, rotational fluctuation, frequency response, step response and etc of the systems were measured. All these tests were carried out without any kind of compensation methods such as pitch error or cogging torque compensation etc. Three rotary encoders for rotary table with roller gear cam and one rotary encoder for rotary table with direct drive motor were used for measurements. Furthermore, the simulations were carried out by mathematical models and the results were compared with measured results. The comparison shows that the measured and simulated results have a good agreement. From the simulation results, the friction torque was identified and also compared. The results imply that though both the tables show high performances, the performances of the rotary table driven by roller gear cam are comparatively higher than that of rotary table driven by direct drive motor.


2014 ◽  
Vol 953-954 ◽  
pp. 1321-1324 ◽  
Author(s):  
Yuan Fei ◽  
Quan Liu

This paper introduces the new energy vehicles drive system for the future development trend, analysis and comparison in the new energy vehicles drive motor technical indicators. By Ansolf analysis software to optimize the motor rotor, to improve the air gap flux density and the electric potential sine.


Sign in / Sign up

Export Citation Format

Share Document