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Reliability-based design optimization for box-booms considering strength degradation and random total working time

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Abstract

Box-booms are widely used in some cranes. The strength of box-booms would continuously deteriorate with the use of time. In this paper, gamma process is employed to describe strength degradation when dealing with the overall stability of the box-boom. Furthermore, the total working time is not deterministic but random because of the random arrivals of tasks and the random working time of every task. By accounting for strength degradation and the random total working time, a time-dependent reliability-based design optimization (RBDO) model for the box-boom is proposed. An engineering case is used to illustrate the proposed model.

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Authors and Affiliations

  1. School of Mechanical, Electronic, and Industrial Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, China

    Zhonglai Wang, Gang Li, Hong-Zhong Huang, Xiao-Ling Zhang & Yanfeng Li

Authors
  1. Zhonglai Wang
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  2. Gang Li
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  3. Hong-Zhong Huang
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  4. Xiao-Ling Zhang
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  5. Yanfeng Li
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Corresponding author

Correspondence to Hong-Zhong Huang.

Additional information

Recommended by Guest Editor Dong-Ho Bae

Zhonglai Wang is currently an associate professor of the School of Mechanical, Electronic, and Industrial Engineering at the University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731. His research interests include reliability-based design optimization, robust design and lifecycle reliability-based design.

Hong-Zhong Huang is a full professor and the Dean of the School of Mechanical, Electronic, and Industrial Engineering, University of Electronic Science and Technology of China. He received his Ph.D in Reliability Engineering from Shanghai Jiaotong University, China. He has published 150 journal papers and 5 books in the field of reliability engineering. He has held visiting appointments at several universities in the USA, Canada, and Asia. He received the Golomski Award from the Institute of Industrial Engineers in 2006. His current research interests include system reliability analysis, warranty, maintenance planning and optimization, computational intelligence in product design.

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Wang, Z., Li, G., Huang, HZ. et al. Reliability-based design optimization for box-booms considering strength degradation and random total working time. J Mech Sci Technol 26, 2045–2049 (2012). https://doi.org/10.1007/s12206-012-0515-3

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  • DOI: https://doi.org/10.1007/s12206-012-0515-3

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