Interval non-probabilistic time-dependent reliability analysis of boom crane structures

被引：8
|
作者：
Yang Ruigang [1 ]
Li Wenzhao [1 ]
Zhao Guangli [2 ]
Liu Yuzhen [1 ]
Jing Weichen [1 ]
机构：
[1] Taiyuan Univ Sci & Technol, Sch Mech Engn, Taiyuan, Peoples R China
[2] Shanxi Special Equipment Inspect & Res Inst, Taiyuan, Peoples R China
来源：
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | 2021年 / 35卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Frame structure; Interval non-probabilistic reliability; Time-dependent reliability; Boom crane; MULTIDISCIPLINARY DESIGN OPTIMIZATION; DEGRADATION; STRATEGY; MODEL;
D O I：
10.1007/s12206-021-0112-4
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The reliability of boom crane structure determines the safety and performance of the whole machine. Due to the sample information of uncertain parameter is lacking, non-probabilistic reliability of boom crane structure under the condition of limited samples is studied. Considering the time dependent deterioration of structure resistance and the load time effect, the time-dependent uncertain parameters of boom structures are comprehensively analyzed. A time-dependent reliability model of boom structures based on interval non-probabilistic is proposed. Based on the theory of interval non-probabilistic time-varying reliability, an engineering example is analyzed by using VC++ programming. The influence of different weight and uncertain parameters on the structure reliability of the boom is analyzed. The results show that the resistance, attenuation coefficient, average resistance and non-probabilistic time-varying reliability indicators of the boom structure attenuate seriously after decades. The conclusion verifies the scientific of the proposed method on the time accumulation effect.
引用
收藏
页码：535 / 544
页数：10
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