Evaluation of supplier strength based on fuzzy synthetic assessment method

2009 ◽  
Author(s):  
Jiulong Zhu
Keyword(s):  
Assessment Method ◽  
Strength Based ◽  
Fuzzy Synthetic Assessment ◽  
Synthetic Assessment

In Situ Assessment Method of Wood Using Normalized Withdrawal Resistances of Metric-Screw Type Probes

2013 ◽  
Vol 778 ◽  
pp. 217-224 ◽  
Author(s):  
Nobuyoshi Yamaguchi
Keyword(s):  
Shear Strength ◽  
Cross Section ◽  
Assessment Method ◽  
Strength Distribution ◽  
Shear Loading ◽  
Resistance Measurement ◽  
Strength Based ◽  
In Situ Assessment ◽  
Loading Tests

Withdrawal resistances of wood have been applied for in situ assessment of wood in existing timber structures. The author had proposed method to estimate shear strengths of wood from measured withdrawal resistances of probes which are screwed into wood. In order to verify the accuracy of these estimated shear strengths by proposed methods, withdrawal resistance measurements and shear loading tests were conducted for wood. Single withdrawal resistance measurement was applied for wood specimens, and estimated shear strengths from withdrawal measurements were compared to the measured shear strengths by shear loading tests of wood. Correlation between the estimated shear strengths and measured shear strengths of specimens was reasonably good (R2=0.73). Multiple coaxial withdrawal resistance measurement which can provide distribution of shear strengths in cross-section of wood was also proposed. The average of estimated shear strengths by single withdrawal resistances was 7 percent less than that of measured shear strengths. The average of estimated shear strength by multiple coaxial withdrawal resistances was 3 percent greater than that of measured shear strengths. The single withdrawal measurements and multiple coaxial withdrawal resistances are available to estimate shear strengths of wood and shear strength distribution in the cross-section of wood. Estimated shear strengths obtained from these methods will be valuable for strength based in situ assessment of wood.

A Comprehensive Reliability Allocation Method of Feed Mixers Based on Fuzzy Synthetic Assessment

2015 ◽  
Author(s):  
Dong Yang ◽  
Yu Sun ◽  
Kai Wu
Keyword(s):  
Fuzzy Number ◽  
Influence Factors ◽  
Triangular Fuzzy Number ◽  
Uncertain Information ◽  
Allocation Model ◽  
Reliability Allocation ◽  
Allocation Method ◽  
Fuzzy Synthetic Assessment ◽  
Comprehensive Reliability ◽  
Synthetic Assessment

To solve the problem that there are many factors influencing the reliability allocation of feed mixers, and some of which are difficult to analyze quantitatively, a comprehensive reliability allocation method is researched using triangular fuzzy number, fuzzy synthetic assessment and analytic hierarchy process. In this paper, a reliability allocation model is proposed for feed mixers, which considered several influence factors, and used triangular fuzzy number instead of real number to express uncertain information. It could make use of the reliability test information and experts’ experience comprehensively. Finally, the application of this method is illustrated with an example, and the result showed that the allocation method is feasible and effective for the reliability allocation of feed mixers.

Sign in / Sign up

Export Citation Format

Share Document