Design for a Crane Metallic Structure Based on Imperialist Competitive Algorithm and Inverse Reliability Strategy

作     者：Xiao-Ning Fan Bo Zhi 

作者机构：College of Mechanical EngineeringTaiyuan University of Science and TechnologyTaiyuan 030024China 

基　　金：Supported by National Natural Science Foundation of China(Grant No.51275329) 

出 版 物：《Chinese Journal of Mechanical Engineering》 (中国机械工程学报（英文版）)

年 卷 期：2017年第30卷第4期

页      码：900-912页

摘      要：Uncertainties in parameters such as materials, loading, and geometry are inevitable in designing metallic structures for cranes. When considering these uncertainty factors, reliability-based design optimization （RBDO） offers a more reasonable design approach. However, existing RBDO methods for crane metallic structures are prone to low convergence speed and high computational cost. A unilevel RBDO method, combining a discrete imperialist competitive algorithm with an inverse reliabil- ity strategy based on the performance measure approach, is developed. Application of the imperialist competitive algorithm at the optimization level significantly improves the convergence speed of this RBDO method. At the reli- ability analysis level, the inverse reliability strategy is used to determine the feasibility of each probabilistic constraint at each design point by calculating its a-percentile per- formance, thereby avoiding convergence failure, calcula- tion error, and disproportionate computational effort encountered using conventional moment and simulation methods. Application of the RBDO method to an actual crane structure shows that the developed RBDO realizes a design with the best tradeoff between economy and safety together with about one-third of the convergence speed and the computational cost of the existing method. This paper provides a scientific and effective design approach for the design of metallic structures of cranes.

主 题 词：Crane metallic structure Reliability-baseddesign optimization Imperialist competitive algorithmPerformance measure approach Inverse reliabilitystrategy 

学科分类：08[工学] 0802[工学-机械学] 

核心收录：

D　O　I：10.1007/s10033-017-0139-8

馆 藏 号：203255413...