فهرست مقالات Kinematic analysis

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  1 - Mechanical Design and Simulation of a Saddle-Assistive Device for Sit-to-Stand Transfer in Healthy Subjects
  A. Hojjati Najafabadi S. Amini F. Farahmand
  Assistive device equipment can improve the performance of sit-to-stand (STS), standing, and walking of people with lower limb disability. The motorized assistive device is usually expensive and the use of another assistive device also makes an excessive force in the upp چکیده کامل

  Assistive device equipment can improve the performance of sit-to-stand (STS), standing, and walking of people with lower limb disability. The motorized assistive device is usually expensive and the use of another assistive device also makes an excessive force in the upper and lower extremity during (STS) transfer, which is not desirable for patients. In addition, only a few number of the non-motorized assistive devices that support all three phases; namely, sit-to-stand, standing, and walking are available. Consequently, improving and creating the new technology seems essential in this case. In this paper, the design procedure of saddle-assistive device is described in order to make use of the linear actuator in (STS) transfer and walk. Experimental results orientation of the shoulder during (STS) was recorded in the lab. Then, based on this analysis and simulation, saddle-assistive devices(S-AD) were designed and prototyped. Function prototype of the (S-AD) was done in the lab on a healthy person in (STS) and walking and then was compared with (STS) in normal mode. It is proposed due to the integration of the three phases in one device. Other advantages are force reduction on lower limbs, creating conditions of stability, and independence for patients with lower limb disability. پرونده مقاله
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  2 - Simulation of Human Foot Mechanism with a Degree of Freedom Motion
  دامون بختیاریان هادی همایی امین ملکی زاده مراد شهبازی تک آبی
  The need for simulation of human foot mechanism has made researchers and engineers move towards different patterns to describe this movement. In this regard, optimal solutions such as energy consumption, accuracy, etc. are of utmost importance. In this paper, efforts ha چکیده کامل

  The need for simulation of human foot mechanism has made researchers and engineers move towards different patterns to describe this movement. In this regard, optimal solutions such as energy consumption, accuracy, etc. are of utmost importance. In this paper, efforts have been made to present a new solution by designing a fully two-dimensional six-bar mechanism with one degree of freedom so that it has the least error with regard to human foot while walking. Meanwhile, the findings of this paper present a process for the optimization of multi-bar mechanisms so that they can be employed in any other field such as making human foot prosthesis. Here, the particle swarm optimization algorithm was used. The results from the optimization were compared with experimental data regarding human feet. The results show that while optimizing many motor parameters, the proposed six-bar mechanism is able to simulate the movement of the human foot very well. پرونده مقاله