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

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Abstract

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.

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Abbreviations

L 1 :

length of a bracket link

L 2 :

length of a hinge lever

L 3 :

length of cam link 1

L 4 :

length of cam link 2

L stop :

distance between cam link 1 and a stopper

X cam :

X coordinate of a cam joint

Y cam :

Y coordinate of a cam joint

X slot :

X coordinate of a slot pin in a local coordinate

Y slot :

Y coordinate of a slot pin in a local coordinate

α :

angle between the bracket link and a door

β :

angle between cam link 1 and cam link 2

γ :

angle between cam link 2 and X-axis of the local coordinate

θ :

open angle of the door

Φ1 :

spring force ration of è to 0° of the door angle

Φ2 :

spring force ration of 130° to 0° of the door angle

L s :

distance between the cam link and a hinge exterior structure

σ max :

maximum stress occurring during crash analysis of the door

L1 :

length of the bracket link

References

  1. Hwang, J. H., “Study on the Optimization of Screw Cam-Spring Frictional Hinge Mechanism for Appliance,” M.Sc. Thesis, School of Mechanical Engineering, Korea University, 2012.

    Google Scholar 

  2. Youn, S. J., Noh, Y. J., Kim, S. R., and Kim, J. W., “Optimization of Door Hinges of a Large Refrigerator,” Transactions of the Korean Society of Mechanical Engineers A, Vol. 38, No. 1, pp. 71–78, 2014.

    Article  Google Scholar 

  3. Jeong, S. B., Lee, S. J., and Park, G. J., “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, Vol. 36, No. 7, pp. 805–811, 2012.

    Article  Google Scholar 

  4. Oh, Y. K., “Reliability-based Shape Optimization using Evolutionary Structure Optimization and Growth Strain Method,” M.Sc. Thesis, Department of Mechanical Engineering, Hanyang University, 2010.

    Google Scholar 

  5. Kim, J. M., “Reliability-based Design Optimization of Micro Structures,” M.Sc. Thesis, Department of Automotive Engineering, Hanyang University, 2003.

    Google Scholar 

  6. Norton, R. L., “Kinematics and Dynamics of Machinery,” McGraw-Hill, Korea, pp. 56–63, 2014.

    Google Scholar 

  7. PIDO-TECH Inc., “PIAnO User’s Manual,” 2012.

    Google Scholar 

  8. Lee, G. S., Park, J. M., Choi, B. L., Choi, D. H., Nam, C. H., and Kim, G. H., “Multidisciplinary Design Optimization of Vehicle Front Suspension System using Pido Technology,” Transactions of KSAE, Vol. 20, No. 6, pp. 1–8, 2012.

    MATH  Google Scholar 

  9. Jang, J. J., “Multiplicative Decomposition Method for Accurate Moment-based Reliability Analysis,” Ph.D. Thesis, Department of Automitive Engineering, Hanyang University, 2007.

    Google Scholar 

  10. Youn, B. D., Xi, Z., Lee, J. W., and Wang, P., “Enhanced Dimension-Reduction (eDR) Method for Sensitivity-Free Uncertainty Quantification,” Proc. of 11th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, 2006.

    Google Scholar 

  11. Korea Industrial Standards, “General Dimensional Tolerances for Parts Formed by Press Working from Sheet Metal,” KS B 0413, 2011.

    Google Scholar 

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Author information

Authors and Affiliations

  1. Built-in Development Team, HA Kitchen Package, LG Electronics, 170 Sungsanpaechongro, Seongsan-gu, Changwon-si, Gyeongsangnam-do, 642-711, South Korea

    Seong-Jun Youn

  2. School of Mechanical Engineering, Pusan National University, 2, Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, 609-735, South Korea

    Yoojeong Noh

Authors
  1. Seong-Jun Youn
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  2. Yoojeong Noh
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Correspondence to Yoojeong Noh.

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Youn, SJ., Noh, Y. Reliability-based design optimization of refrigerator door hinges using PIDO technology. Int. J. Precis. Eng. Manuf. 16, 715–722 (2015). https://doi.org/10.1007/s12541-015-0095-0

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  • DOI: https://doi.org/10.1007/s12541-015-0095-0

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