Realization Of A Working Prototype Of Wearable-Chair

Mohd Zin, Adinda Hadirah (2019) Realization Of A Working Prototype Of Wearable-Chair. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Declining health rate among the factory workers is worrisome. Some of the reason is due to overwork that could cause back pain, headache, muscle fatigue and more. Thus, to overcome the muscle fatigue problem, chairless chair or wearable-chair has been invented. This device lets the user to sit on it anytime and everywhere by equipping the device on the users’ legs. The purpose of this study is to develop and realize the new design of the chairless chair by implementing methods and techniques of mechanical engineering design and manufacturing process. Before furthering to 3D model development, a survey is done among factory workers, doctors and lecturers to get valuable data for this project. From the data, a House of Quality was used to determine the engineering details for the product also the important technical details to be prioritized in the design. From the House of Quality data, few conceptual designs were made and evaluated to obtain the final design. The final design is then modeled by using SolidWorks. To determine the functionality of the 3D model, two analyses were conducted. The first one was a motion study analysis. This analysis was conducted to observe the motion of the model if it were to put in the actual situation where the gravity and extra forces took place. The second one was stress analysis. The purpose of this analysis was to determine the endurance of the product and to define the critical stress area so that improvements can be made in the design to achieve a factor of safety of more than one for the whole model. Then, further manufacturing processes were discussed

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