基于行为表达式的设备可用度分析方法

中国机械工程 ›› 2012, Vol. 23 ›› Issue (10): 1221-1226.

基于行为表达式的设备可用度分析方法

郑蓓蓉;薛伟;谢晓文

温州大学,温州,325035

出版日期:2012-05-25 发布日期:2012-05-30
基金资助:
国家自然科学基金资助项目（50875187）；国家国际科技合作专项资助项目(2012DFG72210);浙江省自然科学基金资助项目（Y1111147）;浙江省优先主题重点国际科技合作研究项目（2011C14025）;温州市科技计划资助项目（H20100092）
National Natural Science Foundation of China（No.50875187）;

International S&T Cooperation Program of China( No. 2012DFG72210);

Zhejiang Provincial Natural Science Foundation of China（No. Y1111147）;
Science and Technology program of Wenzhou( No. H20100092)

Modeling and Analysis of Equipment Availability Based on Extended Stochastic Petri Nets

Zheng Beirong;Xue Wei;Xie Xiaowen

Wenzhou University,Wenzhou,Zhejiang,325035

Online:2012-05-25 Published:2012-05-30
Supported by:

National Natural Science Foundation of China（No.50875187）;

International S&T Cooperation Program of China( No. 2012DFG72210);

Zhejiang Provincial Natural Science Foundation of China（No. Y1111147）;
Science and Technology program of Wenzhou( No. H20100092)

摘要/Abstract

摘要：

首先分析了设备运行过程中的不同劣化状态，提出了基于扩展随机Petri网的设备运行、劣化和维修过程建模方法，由于扩展随机Petri网的变迁可适应任意分布，因此所提方法能更加准确地反映设备的运行过程。然后在此基础上,采用基于行为表达式的方法分析了在不同维护策略下的设备可用度和激发速率之间的函数关系,该方法可有效地避免Petri网可达图状态爆炸的问题，使得分析过程更加清晰。最后通过实例分析，证明了该方法的有效性。

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关键词: 设备可用度, 扩展随机Petri网, 行为表达式, 建模

Abstract:

Different degradation states of equipment on operation were firstly analyzed,and then the modeling method of operation processes,degradation and maintenance based ESPN was present.Due to the applicability of ESPN to arbitrary distribution,it can reflect the operation process of equipment more accurately.On the basis of above,the analysis method based on behavior expressions was adopted to analyze the relationship between equipment availability and fire rate under different maintenance strategies.The method can avoid the state explosion problem of Petri net effectively,and make the analysis process more clearly.Finally,through the case study,the effectiveness was verified.

Key words: equipment availability, extended stochastic Petri net(ESPN), behavior expression, modeling

中图分类号:

TH165.3

郑蓓蓉, 薛伟, 谢晓文. 基于行为表达式的设备可用度分析方法[J]. 中国机械工程, 2012, 23(10): 1221-1226.

ZHENG Bei-Rong, XUE Wei, XIE Xiao-Wen. Modeling and Analysis of Equipment Availability Based on Extended Stochastic Petri Nets[J]. China Mechanical Engineering, 2012, 23(10): 1221-1226.

参考文献

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