چكيده به لاتين
In the challenges of today's world, machine and human share the same space at work, some work environments include long stands during the day, for such activities fatigue increases and consequently productivity decreases. Machines can do their best without any surgery, they do not get tired, but for humans, needs and comfort play a vital role.
Because of the convenience of the worker, the possibility of sitting for a moment, not using chairs in the workplace, it's time to think differently and use an exoskeleton that takes up less space and is lighter in weight. In factories, especially production line factories, which sometimes have to change their position, it can help a lot. This product gives users the practical freedom to sit in any place they feel tired without the need for regular chairs. In this dissertation, we designed an example of this type of exoskeleton. In the first step, its dimensions We modeled the human body in three dimensions according to the standard dimensions. In the second stage, the material and weight of the exoskeleton were important to us, so among the alloys used in the aerospace industry, we chose the 6061 alloy with 6 T heat treatment. This alloy has desirable mechanical properties and acceptable weight to our model. In the third step, when the sitting person uses it, we analyzed it in terms of stress and fatigue in Ansis software. The advantages of this type of exoskeleton can be Its final weight, which with only 1.7 kg, could withstand an individual weight of up to 140 kg. The basis of this type of exoskeleton is mechanical, and its outstanding feature is that it does not require a source of electricity and electricity .
