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標題: 塑膠布溫室結構分析與設計
Structural Analysis and Optimum Design of the Greenhouse with lastic Cover
作者: 吳明東
Dong, Wu Ming
關鍵字: Structural analysis;結構分析;Optimum design;GreenHouse;最佳化設計;溫室
出版社: 農業機械工程學系
模型,並以 MSC/NASTRAN 有限元素分析軟體,求得溫室結構受不同風速
最佳化設計軟體 MOST 與分析軟體 MSC/NASTRAN,利用 MOST 之離散設計
使結構總重較原始設計降,於風速32.7m/sec 風力作用條件下,約可降

The greenhouse with plastic cover used in Taiwan are still not
well-developed. The structure of the greenhouse has not been
analyzed. Therefore, the structure is either too weak to be
dangous, or too strong to be wasteful. In this study, the
greenhouse with plastic cover was analyzed by using the finite
element method first. The optimum design of the structure
wasndertaken thereafter. In structural analysis aspect, the
finite element model of greenhouse structure has been
established in this study. The finite element analysis
package, MSC/NASTRAN, was used. The structure subjected to
wind force with various velocities was investigated. In optimum
design aspect, this study integrates the optimum design
package, MOST, and the finite element analysis package, MSC/
NASTRAN, by an interface program coded by C language. By using
the discrete design variables optimization module provided by
MOST, this study had obtained new designs of the structure of
greenhouse. Under the loading condition that the wind velocity
is 32.7m/sec, the total weight of the structure is reduced
about 43.37%. Furthermore, under the loading condition that
the wind velocity is 51.0m/sec, the total weight of the
structure is reduced about 12.66%. In addition, all members in
new design of structures hold safety factors to be over 2.
Appears in Collections:生物產業機電工程學系

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