国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

考慮強度和疲勞壽命影響的層合復合材料結構優(yōu)化分析
DOI:
CSTR:
作者:
作者單位:

南京航空航天大學(xué) 能源與動(dòng)力學(xué)院,南京航空航天大學(xué) 能源與動(dòng)力學(xué)院

作者簡(jiǎn)介:

通訊作者:

中圖分類(lèi)號:

基金項目:

國家自然科學(xué)基金(No. 51205190), the Jiangsu Province Key Laboratory of Aerospace Power System of China(No. NJ20140019)


Optimization analysis of composite materials with effect of strength and fatigue life
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 圖/表
  • |
  • 訪(fǎng)問(wèn)統計
  • |
  • 參考文獻
  • |
  • 相似文獻
  • |
  • 引證文獻
  • |
  • 資源附件
  • |
  • 文章評論
    摘要:

    工程應用中對復合材料輕量化的要求在不斷提高,為了能夠在滿(mǎn)足工程應用對材料強度和疲勞壽命要求的同時(shí),達到減輕結構質(zhì)量的目的,研究了強度和疲勞壽命影響下的復合材料層合結構優(yōu)化方法,并在此基礎上提出了一種基于參數化有限元技術(shù)和改進(jìn)遺傳算法的復合材料層合結構優(yōu)化方法。根據復合材料層合結構鋪層參數屬于離散型變量的特點(diǎn),將遺傳算法編碼改為聯(lián)合整數編碼,并且為了能快速準確求出最優(yōu)解,提出了精英保留策略、交叉和變異自適應度策略。最后,基于Visual Studio和ANSYS進(jìn)行聯(lián)合仿真,對所提出的方法進(jìn)行驗證,仿真結果表明,優(yōu)化后的復合材料層合結構不僅能夠滿(mǎn)足強度和疲勞壽命的約束條件,并且其質(zhì)量減少到初始質(zhì)量的56.2%,優(yōu)化效果明顯,這表明所提出的基于參數化有限元技術(shù)和改進(jìn)遺傳算法的復合材料層合結構優(yōu)化方法是可行的。

    Abstract:

    The requirement of lightweight composite materials has been continuously improved in engineering application, in order to meet required by material strength and the fatigue life of the engineering application and achieve the purpose of structure mass reduction, the optimization method of composite laminated structure under the influence of strength and fatigue life is studied, and the optimization method of composite laminated structure based on parametric finite element technique and genetic algorithm is proposed. According to the characteristics of the composite laminated structure layer parameters belong to discrete variable, the genetic algorithm is transformed into a combined integer coding. In order to get the optimal solution quickly and accurately, elitism preserving strategy, crossover and mutation adaptive degree strategy are put forward. Finally, to verify the proposed method, the co-simulation based on the Visual Studio and ANSYS has been carried out, the simulation results show that the composite layer of the optimized structure can not only meet the constraints of strength and fatigue life, and the quality is reduced to 56.2% of initial mass, the optimization effect is obvious, which indicates that the optimization method of composite laminated structure based on parametric finite element technique and genetic algorithm is feasible.

    參考文獻
    相似文獻
    引證文獻
引用本文

王紅巖,崔海濤.考慮強度和疲勞壽命影響的層合復合材料結構優(yōu)化分析計算機測量與控制[J].,2018,26(9):297-300.

復制
分享
文章指標
  • 點(diǎn)擊次數:
  • 下載次數:
  • HTML閱讀次數:
  • 引用次數:
歷史
  • 收稿日期:2018-01-14
  • 最后修改日期:2018-02-11
  • 錄用日期:2018-02-12
  • 在線(xiàn)發(fā)布日期: 2018-09-14
  • 出版日期:
文章二維碼
梁平县| 昌黎县| 新兴县| 宜宾市| 黄浦区| 福泉市| 灵山县| 增城市| 恩平市| 景德镇市| 凤山县| 洪湖市| 潼关县| 太康县| 鄂伦春自治旗| 山西省| 安义县| 黑水县| 彰武县| 牙克石市| 珠海市| 开化县| 临安市| 满城县| 图们市| 齐河县| 霞浦县| 保山市| 太和县| 邵东县| 涪陵区| 攀枝花市| 北碚区| 临沭县| 汤阴县| 枞阳县| 大厂| 尼木县| 无极县| 红原县| 茂名市|