皮芯結構 的英文怎麼說
中文拼音 [píxīnjiēgòu]
皮芯結構
英文
skin-core structure- 皮 : Ⅰ名詞1 （人或物體表面的一層組織） skin 2 （皮革） leather; hide 3 （毛皮） fur 4 （包在外面的一層...
- 芯 : 芯名詞1. （物體或器物的中心部分） core 2. （蛇的舌頭） snake's tongue
- 結 : 結動詞（長出果實或種子） bear （fruit）; form （seed）
- 構 : Ⅰ動詞1 （構造; 組合） construct; form; compose 2 （結成） fabricate; make up 3 （建造; 架屋） bui...
- 結構 : 1 （各組成部分的搭配形式） structure; composition; construction; formation; constitution; fabric;...
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Study on the cross section morphology and skin - core structure of pan fiber in wet - spinning
濕法紡聚丙烯腈纖維的截面形貌與皮芯結構的研究The re - suits demonstrate that the carbon fibers which have serious skin - core structure, few graphite layers which intricately piled up have low mechanical properties
結果表明，造成碳纖維力學性能低的直接原因可以歸結為嚴重的皮芯結構、芯部組織疏鬆或有孔洞出現、晶相少且無明顯取向、石墨層排列紊亂。High - performance carbon fibers must have few voids, few score region, and they also have more graphite layers which regularly piled up and highly oriented
提高碳元素的含量，提高結晶度，減少甚至消除皮芯結構，減少孔洞，從微觀上提高石墨層的取向和堆疊程度是獲得高性能碳纖維的必要條件。The rayleigh - ritz method is used to lead to analytical expressions for the stiffness and mass matrices and load vector as well as their sensitivities, which uses the simple polynomials to define assumed displacement functions, geometry and construction of wing structures. excluding some selected terms from the displacement functions or using stiff springs at the specified locations imposes boundary conditions. the accuracy of calculated results is improved by including transverse shear effects and using multiple sets of ritz functions in the analysis
它使用簡單多項式作為ritz基函數、定義翼面的幾何和結構參數，利用rayleigh - ritz方法導出翼面結構的剛度矩陣、質量矩陣和載荷向量及其靈敏度的解析表達式，通過排除位移函數中某些選定的項或在指定點使用約束彈簧施加各種邊界條件，考慮橫向剪切變形和使用多組ritz基函數改進分析的質量，使用等效蒙皮和等效夾芯技術提高計算效率。分享友人