Reliability-based design optimization of refrigerator door hinges using PIDO technology

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• 作者：Seong-Jun Youn (1)
  Yoojeong Noh (2)
  
  1. Built-in Development Team ; HA Kitchen Package ; LG Electronics ; 170 Sungsanpaechongro ; Seongsan-gu ; Changwon-si ; Gyeongsangnam-do ; 642-711 ; South Korea
  2. School of Mechanical Engineering ; Pusan National University ; 2 ; Busandaehak-ro 63beon-gil ; Geumjeong-gu ; Busan ; 609-735 ; South Korea
  
• 关键词：Reliability ; based design optimization ; Reliability analysis ; Hinge mechanism ; Progress integration and design optimization
• 刊名：International Journal of Precision Engineering and Manufacturing
• 出版年：2015
• 出版时间：April 2015
• 年：2015
• 卷：16
• 期：4
• 页码：715-722
• 全文大小：872 KB
• 参考文献：1. Hwang, J. H. (2012) Study on the Optimization of Screw Cam-Spring Frictional Hinge Mechanism for Appliance. M.Sc. Thesis, School of Mechanical Engineering, Korea University.
  2. Youn, S. J., Noh, Y. J., Kim, S. R., Kim, J. W. (2014) Optimization of Door Hinges of a Large Refrigerator. Transactions of the Korean Society of Mechanical Engineers A 38: pp. 71-78 CrossRef
  3. Jeong, S. B., Lee, S. J., Park, G. J. (2012) Improvement of the Convergence Capability of a Single Loop Single Vector Approach using Conjugate Gradient for a Concave Function. Transactions of the Korean Society of Mechanical Engineers A 36: pp. 805-811 CrossRef
  4. Oh, Y. K. (2010) Reliability-based Shape Optimization using Evolutionary Structure Optimization and Growth Strain Method. M.Sc. Thesis, Department of Mechanical Engineering, Hanyang University.
  5. Kim, J. M. (2003) Reliability-based Design Optimization of Micro Structures. M.Sc. Thesis, Department of Automotive Engineering, Hanyang University.
  6. Norton, R. L. (2014) Kinematics and Dynamics of Machinery. McGraw-Hill, Korea. pp. 56-63
  PIAnO User鈥檚 Manual.
  7. Lee, G. S., Park, J. M., Choi, B. L., Choi, D. H., Nam, C. H., Kim, G. H. (2012) Multidisciplinary Design Optimization of Vehicle Front Suspension System using Pido Technology. Transactions of KSAE 20: pp. 1-8
  8. Jang, J. J. (2007) Multiplicative Decomposition Method for Accurate Moment-based Reliability Analysis. Ph.D. Thesis, Department of Automitive Engineering, Hanyang University.
  9. Youn, B. D., Xi, Z., Lee, J. W., Wang, P. (2006) Enhanced Dimension-Reduction (eDR) Method for Sensitivity-Free Uncertainty Quantification. Proc. of 11th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference.
  General Dimensional Tolerances for Parts Formed by Press Working from Sheet Metal. KS B 0413.
  
• 刊物类别：Engineering
• 刊物主题：Industrial and Production Engineering
  Materials Science
  
• 出版者：Korean Society for Precision Engineering, in co-publication with Springer Verlag GmbH
• ISSN：2005-4602

文摘

Door hinges of a large refrigerator employ a complicated mechanism in combination with crank-rockers and slide-cranks to help the doors open and close smoothly. The main frame of the hinge covering the mechanism part should support the weight of the door along with food loaded on it, and endure impact load due to the opening and closing movement of the door. Thus, the door hinges should be designed such that the mechanism part is smoothly operated and the main frame has the required strength without significantly increasing the weight. For this purpose, the deterministic design optimization (DDO) of door hinges has been studied, but it does not guarantee desirable reliabilities in the design results. In this research, reliability-based design optimization (RBDO) was carried out to obtain a more reliable design than the DDO. By comparing the RBDO results with the DO results, it was found that the RBDO results had slightly larger door weights than the DDO results, but provided much larger reliabilities. The entire process of analysis and design optimization were automated using PIDO(Progress Integration and Design Optimization) technology, where Excel was used to analyze the mechanical behavior of the hinge and ANSYS was used to carry out crash analysis.