Journal of South China University of Technology (Natural Science Edition) ›› 2015, Vol. 43 ›› Issue (7): 142-146.doi: 10.3969/j.issn.1000-565X.2015.07.020

• Mechanical Engineering • Previous Articles    

Risk Analysis of Failure Mode of Clamping and Releasing Tool Based on Data Envelopment Analysis

 Wang Zhi-qiong1 Shen Gui-xiang1 Zhang Ying-zhi1 Gu Dong-wei2 Zhang Li-min1,2   

  1. 1. School of Mechanical Science and Engineering, Jilin University, Changchun 130022, Jilin, China; 2. School of Mechatronic Engineering, Changchun University of Technology, Changchun 130012, Jilin, China
  • Received:2014-05-14 Revised:2014-06-25 Online:2015-07-25 Published:2015-06-03
  • Contact: 谷东伟( 1983-) ，男，讲师，主要从事数控机床可靠性、维修性研究． E-mail:gdw2000@163.com
  • About author:王志琼( 1986-) ，女，工程师，主要从事数控机床全寿命周期研究． E-mail: wzq2012@jlu.edu.cn
  • Supported by:
    Supported by the National Science and Technology Major Project of the Ministry of Science and Technology of China(2010ZX04014-011) , the National Natural Science Foundation of China(51275205) and the Program of Science and Technology Development of Jilin Province(20140520126JH, 20125008)

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Abstract: In the risk priority number (RPN) analysis, each evaluation index weight is the same, and it is impossible to conduct risk ranking for the same RPN value. In view of the above issues, the data envelopment analysis (DEA) and the risk priority number analysis are combined to analyze the failure mode risks of clamping and releasing tools. This method can increase the distinction of RPN, objectively search the failure mode ranking method and determine the risk grades of various failure modes of clamping and releasing tools. Therefore, it is beneficial for the designer to preferentially handle the most dangerous failure mode and can provide a basis for realizing the reliability allocation of function parts and improving the reliability of clamping and releasing tools.

Key words: clamping and releasing tool, failure risk analysis, data envelopment analysis

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