Affiliation:
1. Shenyang Institute of Automation
2. Chinese Academy of Sciences
3. University of Chinese Academy of Sciences
Abstract
Abstract
In the field of aerospace, large and heavy cabin segments present a significant challenge in assembling space engines. The considerable inertial force of cabin segments’ mass causes unexpected motion during docking, leading to segment collisions and difficulty in ensuring precise engine segment docking. Traditional manual docking utilizes workers' expertise, yet the labor-intensive nature and low productivity are unsuitable for practical applications. Human-robot collaboration can effectively integrate the advantages of humans and robots. Additionally, parallel robots, known for their precision and load-bearing ability, are widely employed in precise assembly tasks under heavy loads. Thus, human-parallel-robot collaboration serves as an excellent solution for these challenges. This paper proposes an easily implementable framework, employing human-parallel-robot collaboration technology for cabin segment docking in production. A fractional-order variable damping admittance control and an inverse dynamics robust controller are suggested to improve the robot's compliance, responsiveness, and trajectory tracking accuracy in collaboration. This allows operators to dynamically adjust the robot's motion in real-time, counterbalancing inertial forces and preventing collisions. Segment docking assembly experiments are conducted utilizing the Stewart platform in this study. The results show that the proposed method enables the robot to quickly respond to interaction forces, ensuring compliance and stable motion accuracy, even under unknown interaction forces.
Publisher
Research Square Platform LLC
Reference27 articles.
1. Research status and development trend of parallel robot motion performance %J;Ye;Journal of Nanjing University of Aeronautics and Astronautics.,2020
2. Space and Rocket Building; Docking system handled slight vibrations when Nauka module was approaching ISS - Russian segment flight director %J Interfax: Russia & CIS Defense Industry Weekly. (2021).
3. Alp Ustundag & Emre Cevikcan. Industry 4.0: Managing The Digital Transformation. (Springer, Cham).
4. Sindhwani, N., Anand, R., George, A. S. & Pandey, D. Robotics and Automation in Industry 4.0: Smart Industries and Intelligent Technologies:Smart Industries and Intelligent Technologies. (CRC Press).
5. Progress and prospects of the human–robot collaboration %J;Ajoudani A;Autonomous Robots.,2018