Optimization of Design Parameters for Lock-Claws of Pneumatic Fitting Using Taguchi Method

다구찌기법을 이용한 공압피팅용 원형 판스프링의 설계변수 최적화

  • Received : 2013.04.30
  • Accepted : 2013.09.25
  • Published : 2013.12.01


The stress concentration of lock-claws, which are one of the important parts for pneumatic fitting for a flexible tube connection, was investigated by finite element simulation. In this study, the generation of the local plastic deformation was predicted when the tube was hooked up to a pneumatic fitting in order to disperse the stress concentration, and design optimization was carried out using the Taguchi method. For the optimization, the outer width, bending angle, and inner radius of the lock-claws are used as main variables. As a result, their respective contribution ratios are revealed as 81.3%, 10.9%, and 1.5%. The ratio of the total stress distribution was improved by 4% compared with the initial design of the lock-claws.


Pneumatic Fitting;Lock-Claws;Finite Element Simulation;Design of Experiment;Taguchi Method


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