In order to lessen the impact on the team of rehabilitation practitioners and provide patients with a higher-quality rehabilitation process, an ankle rehabilitation robot based on a parallel mechanism is proposed. The feasibility of the ankle rehabilitation robot proposed in this paper is proven by analysis, which lays a foundation for future human–machine experiments. It can act as a reference for future research of the ankle rehabilitation mechanism.

China is one of the first countries that produced textiles in the world. It has designed and developed a variety of equipment to facilitate textile work. However, due to unclear descriptions in the records and illustrations, a variety of designs with different structures may have been produced. This paper briefly analyzes the structures of textile mechanisms and explores the degree of freedom of the mechanisms to find feasible designs in line with functional requirements.

Aiming at the complex control system of a quadruped robot, a leg structure of a quadruped robot was designed based on mechanism synthesis. The innovativeness of this robot is that it can achieve a special gait driven only by a single motor. Simulation and experimental analysis prove that the mechanism is reasonable, reliable and can meet the requirements of linear walking and climbing. The conclusions of this research will be useful for application in field of single actuated quadruped robots.

Compared with the two traditional intelligent optimization algorithms, the results show that the particle swarm optimization configuration algorithm, based on an improved orthogonal experiment design, has a better optimization effect, and the results are improved to a certain extent. The evaluation indexes of a multi-objective optimization design are often contradictory. The designer needs to compromise and select an appropriate parameter design value.