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What is Degree-of-Freedom (DOF)

Chapter 3
Handbook of Research on Advanced Mechatronic Systems and Intelligent Robotics
Any of a limited number of ways in which a body may move or in which a dynamic system may change. Defines the possible elementary movements of a robotic structure.
Published in Chapter:
Development of a Novel Parallel Structure for Gait Rehabilitation
Rogério Sales Gonçalves (Federal University of Uberlândia, Brazil) and Lucas Antônio Oliveira Rodrigues (Federal University of Uberlandia, Brazil)
Copyright: © 2020 |Pages: 40
DOI: 10.4018/978-1-7998-0137-5.ch003
Abstract
This chapter deals with the development of a new active body weight support, based on a parallel robotic structure with 5 degrees of freedom. Initially, a revision of the main structures applied in body weight support for gait rehabilitation is presented, along with a conceptual model of the proposed structure. Therefore, the inverse kinematics and singularity analysis are performed. A dynamic model is then built based on the obtained kinematics, and all parts of the structure are optimized using an evolutional algorithm. Finally, a CAD model of the structure is built based on the optimized dimensions and the model is applied to computational simulations of the gait rehabilitation, being thus ready for prototype construction.
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