Optimal Design for Crosslinking Degree of EVA on Laminating Temperature and Time Effects under Smallest Extreme Value Distribution

• Main Authors: Wei-Hsuan Lin, 林暐軒
• Other Authors: Chih-Chun Tsai
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/gfhc8d

碩士 === 淡江大學 === 數學學系碩士班 === 103 === With the development of solar power, the degree of crosslinking of EVA sheets has a great influence on the performance of solar module. In this study, lamination tests on EVA sheets are conducted first. And then we use chemical method and differential scanning calorimetry (DSC) method to measure the degree of crosslinking of EVA sheets. Then, a regression model with smallest extreme value distribution was proposed to describe the relationship between the degree of crosslinking of EVA sheets, lamination time, and lamination temperature. Next, we obtain the optimal laminated times with different lamination temperatures. Given fixed lamination temperature, the asymptotic variance of the optimal laminated time was used to perform the optimal design. And the optimal sample allocation was searched by genetic algorithm. Finally, a simulation study further shows that the simulated values are quite close to the asymptotic values when the sample sizes are large enough. And we compare optimal sample allocations based on global search, equal allocation and genetic algorithm by relative efficiency.