Currently, carbon fiber reinforced polymer (CFRPs) composites are being utilized more and more in the production of robotics structural parts. Especially, in robotic arms applications, vibration stability is very crucial. Hence, compared to traditional materials like steel and aluminum alloy (AA), CFRPs composites offer a good choice for manufacturing robotic arm because of their high stiffness to weight ratio and vibrational stability. Additionally, these materials can be casted into any complex shapes. However, the high cost limits the use of CFRPs. Hence, low cost GFRPs with almost same stiffness and damping property as compared to CFRPs has been proposed for manufacturing robotic arms. This paper reviews the performance of GFRPs composite robotic arm with respect to AA and the comparative performance metrics in terms of weight, deflection and natural frequency are presented. The performance metrics of composite arm were evaluated using numerical method and the results are compared to AA robotic arm. Additionally, an experimental approach is used to validate these numerical results. From results, a significant reduction of 25% in weight, 13% in deflection and ~ 8% increase in frequency of GFRPs composite robotic arm was found as compare to AA. Such enhancement in specific stiffness can open up the scope of GFRPs as a potential cost-effective candidate for high-performance next generation structural robotic arm. Finally, this paper review to identify the gap in this field and proposed material for future research directions.

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GFRP Composite in Manufacturing of Industrial Robotic Arms

  • Tankeshwar Prasad,
  • M. Seshu Kamal,
  • Subodh Kumar,
  • T. Jayananda Kumar,
  • M. Sreenivasa Rao,
  • E. Nirmala Devi

摘要

Currently, carbon fiber reinforced polymer (CFRPs) composites are being utilized more and more in the production of robotics structural parts. Especially, in robotic arms applications, vibration stability is very crucial. Hence, compared to traditional materials like steel and aluminum alloy (AA), CFRPs composites offer a good choice for manufacturing robotic arm because of their high stiffness to weight ratio and vibrational stability. Additionally, these materials can be casted into any complex shapes. However, the high cost limits the use of CFRPs. Hence, low cost GFRPs with almost same stiffness and damping property as compared to CFRPs has been proposed for manufacturing robotic arms. This paper reviews the performance of GFRPs composite robotic arm with respect to AA and the comparative performance metrics in terms of weight, deflection and natural frequency are presented. The performance metrics of composite arm were evaluated using numerical method and the results are compared to AA robotic arm. Additionally, an experimental approach is used to validate these numerical results. From results, a significant reduction of 25% in weight, 13% in deflection and ~ 8% increase in frequency of GFRPs composite robotic arm was found as compare to AA. Such enhancement in specific stiffness can open up the scope of GFRPs as a potential cost-effective candidate for high-performance next generation structural robotic arm. Finally, this paper review to identify the gap in this field and proposed material for future research directions.