Bi-objective Design Optimization of a Manipulator Arm

DOI: 10.14416/j.ind.tech.2021.12.006

Authors

  • Apichit Maneengam Department of Mechanical Engineering Technology, College of Industrial Technology, King Mongkut’s University of Technology North Bangkok
  • Kanlaya Ubontip Department of Mechanical Engineering Technology, College of Industrial Technology, King Mongkut’s University of Technology North Bangkok
  • Rati Maneengam Department of Humanities, Faculty of Applied Arts, King Mongkut’s University of Technology North Bangkok
  • Kanttorn Kengpol Department of Mechanical Engineering Technology, College of Industrial Technology, King Mongkut’s University of Technology North Bangkok
  • Thitipong Markum Department of Mechanical Engineering Technology, College of Industrial Technology, King Mongkut’s University of Technology North Bangkok
  • Thidawan Amjang Department of Mechanical Engineering Technology, College of Industrial Technology, King Mongkut’s University of Technology North Bangkok
  • Ruksarin Warawai Department of Mechanical Engineering Technology, College of Industrial Technology, King Mongkut’s University of Technology North Bangkok
  • Pongtorn Jungpanich Department of Mechanical Engineering Technology, College of Industrial Technology, King Mongkut’s University of Technology North Bangkok

Keywords:

Bi-objective design optimization, Manipulator Arm, Design of experiments

Abstract

Global business competition forces case study companies to improve their manipulator arms by providing better quality and lower costs to increase their domestic and international competitiveness. The authors investigated a manipulator arm design case study problem for loading 75 kilograms, with  15 kilograms mounted on the back as a counterbalance. The designer can adjust the size of each part while maintaining the original overall shape of the manipulator arm. The case study company determines the factors and the possible level of improvements in size, allowing it to either purchase or manufacture the part in Thailand. This paper proposes a bi-objective design optimization method for a manipulator arm by applying the finite element method with a full factorial design of experiment and optimization to minimize the total production cost and maximize safety factors. Results showed that the proposed method can reduce the total production cost from THB 34,117.64 to THB 25,698.40, while the factor of safety value increases from 3.08 to 9.13, compared to the traditional mechanical arm design.

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References

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Published

2021-12-15

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Section

บทความวิจัย (Research article)