Analysis of safety factors in wheelchair frames for stroke sufferers

Subject Areas : Reliability and system safety

Nurul Ihsan ¹ , Moch. Yunus ² , Junil Adri ³ , Andril Arafat ⁴ , Anton Komaini ⁵ , Deby Tri Mario ⁶ , Novadri Ayubi ⁷ , Aydin Karacam ⁸ , Zsolt Németh ⁹ , Yovhandra Ockta ¹⁰

1 - Universitas Negeri Padang (Indonesia)
2 - Universitas Negeri Malang (Indonesia)
3 - Universitas Negeri Padang (Indonesia)
4 - Universitas Negeri Padang (Indonesia)
5 - Universitas Negeri Padang (Indonesia)
6 - Universitas Negeri Padang (Indonesia)
7 - Universitas Negeri Surabaya (Indonesia)
8 - Bandırma Onyedi Eylül University (Türkiye)
9 - University of Pécs (Hungary)
10 - Universitas Negeri Padang (Indonesia)

Received: 2024-08-08 Accepted : 2024-10-25 Published : 2024-11-28

Keywords: Stroke, Therapy, Wheelchairs, Inventor Analysis,

Abstract :

This research aims to analyze the safety factors of wheelchair frames explicitly designed for stroke patients to provide a therapeutic tool. Five participants voluntarily took part in the study, selected based on variations in loading conditions applied to the wheelchair frame, with weights ranging from 60 to 100 kg. The wheelchair was designed using SolidWorks 2019 software, and the frame material consists of strum iron with a diameter of ¾ inch and a thickness of 3 mm. The manufacturing processes involved in the design include bending, cutting, and welding. The data were analyzed using an engineering design application with Inventor software for stress analysis. The test results revealed that the maximum and minimum stress values were observed at loadings of 980 Newtons, producing 12.75 MPa and 588 Newtons, resulting in 7.99 MPa. The Von Mises stress simulation indicated that as the load on the wheelchair frame increased, the corresponding Von Mises stress values also increased. This demonstrated that higher loads result in greater forces and moments acting on the wheelchair frame. In conclusion, the wheelchair design was highly safe for stroke patients weighing up to 100 kg. The wheelchair is intended to assist with mobility and facilitate therapeutic activities for stroke patients seated.

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