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uploads/structural weight.jpg

structural weight 機體重量。

structuralist

The evolution laws of structural weight , the best optimum fitness , average fitness , maximum nodal stress and displacement with increasing generations are discussed . and multi - result fact of the topology optimization can be obtained by ga - fem . the research results in this thesis show that the developed method is successful in the topology optimization for 2d continuum structures under multi - load and multi - constrain conditions 上述工作表明,本文ga ? fem可以實現多載荷、多約束條件下平面連續結構拓撲優化,與eso等優化方法獲得的優化結果相比,本文的優化結果不存在單元鉸接和不連續單元,優化結構多樣,質量更小,效果更優。

On the premise of a given set of material parameter , structural boundary shape and condition , design variables - thickness of plate and shell , is designed to minimize the structural weight subjected to the constraint conditions . 1 . for the problem with size and stress constraints , full stress design method is used to solve the sectional optimization of plate and shell structures 在給定了板殼的材料常數、板殼結構的邊界形狀和邊界條件的前提下,確定表征板殼厚度的設計變量,在滿足約束條件下實現結構重量最小: 1 .對于尺寸和應力約束的問題,使用滿應力方法求解。

Use of multi - level optimization technique in structural optimization design can reduce the structural weight , improve the efficiency of calculation , and shorten the design cycles 將多級技術應用于結構優化設計中,將會減少結構的計算量,提高計算效率,縮短設計周期。