scholarly journals Wrapping Deployment Simulation Analysis of Leaf-Inspired Membrane Structures

Aerospace ◽  
2021 ◽  
Vol 8 (8) ◽  
pp. 218
Author(s):  
Qiuhong Lin ◽  
Wenwen Jia ◽  
Huiying Wu ◽  
Ahmad B. H. Kueh ◽  
Yutao Wang ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Evaluation System ◽  
Maximum Stress ◽  
Simulation Analysis ◽  
Membrane Structures ◽  
Performance Evaluation System ◽  
Smoothness Index ◽  
Working Performance ◽  
The Military ◽  
High Storage

Deployable membrane structures have received wide attention in many engineering applications, such as the military, aerospace, and aviation. Their properties of light weight and high storage ratio meet the requirements for aerospace exactly. In this paper, the wrapping deployment of membrane structures inspired by leaves are simulation-analyzed for prospective improvement. Three leaf-inspired patterns are investigated and discussed from the corresponding paper-craft design principles and deployment process perspectives. The deployment performance evaluation system according to the factors effecting working performance including maximum stress, driving force, maximum strain energy, smoothness index, and maximum folding height is established based on the results of the simulation analysis. Then, a comparison between the three patterns is carried out based on the deployment performance evaluation system. Moreover, it is found that adding creases reduces the folded height but the development performance gets worse. There is a balance between the folding ratio and development performance when the additional creases are added. The results can provide useful suggestions for designing wrapping deployment structures.

Research on Performance Evaluation of Finance Transportation Projects Based on Fuzzy Neural Network

2014 ◽  
Vol 667 ◽  
pp. 60-63
Author(s):  
Wei Guo ◽  
Zhen Ji Zhang
Keyword(s):  
Neural Network ◽  
Performance Evaluation ◽  
Set Theory ◽  
Evaluation System ◽  
Fuzzy Neural Network ◽  
Expert Knowledge ◽  
Highway Projects ◽  
Performance Evaluation System ◽  
Transportation Projects ◽  
Fuzzy Neural

A performance evaluation system of finance transportation projects is mainly researched, in which the sub-module of the highway projects evaluation, waterway projects evaluation, Passenger stations projects evaluation, Energy saving projects evaluation are incorporated. In addition, the expert knowledge are inserted in the system, the multi-layer neural network and fuzzy-set theory are used to implement Performance Evaluation system of Finance invest Transportation Projects, and the feasibility and effectiveness of the evaluation system are finally verified by practice.

A Study on Leagile Supply Chain Model and Performance Evaluation System Based on Lean Agile Theory

2014 ◽  
Vol 635-637 ◽  
pp. 1771-1775 ◽  
Author(s):  
Hui Min Jia ◽  
Kai Chao Yu ◽  
Jin Chang Zhang
Keyword(s):  
Supply Chain ◽  
Performance Evaluation ◽  
Evaluation System ◽  
Operating Mode ◽  
Agile Manufacturing ◽  
Chain Model ◽  
Performance Evaluation System ◽  
Supply Chain Model ◽  
And Performance ◽  
Lean Supply Chain

Leagile supply chain integrates lean supply chain and agile supply chain. In this paper, the theory of lean production and agile manufacturing are compared and analyzed, and then the leagile supply chain model and the performance evaluation system based on DEA are established. Based on the above, this paper provides an example of the evaluation system to verify the operability and effectiveness, which can provide the reference for enterprises to improve operating mode of the supply chain or develop a new leagile supply chain.

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