composite sequence 中文意思是什麼
composite sequence
解釋
復合層序-
( 2 ) a stacking sequence optimization ( sso ) method of composite laminates based on ga is suggested in lower level optimization of hdo
（ 2 ）提出了基於ga的復合材料層合板疊層順序優化設計（ stackingsequeneeoptimization ，簡稱550 ）方法，用於hno的底層優化設計。 -
In this research, fatigue life of laminate composite is predicted phenomenologically, dealing mainly with in - plane stresses without accounting for out - of - plane failures such as delamination. fatigue modulus is used as a physical parameter which helps to describe the basic fatigue behaviour of unidirectional laminates and obtain expressions for cumulative damages defined by strains. based on some typical fatigue test data for unidirectional composite laminates, a cumulative fatigue damage model is presented for predicting the fatigue life of multidirectional laminates with arbitrary stacking sequence under complicated fatigue loadings
本文以碳纖維/樹脂基t300 / qy8911層壓結構為研究對象，從唯象的觀點出發，以疲勞模量為參量構造損傷函數，基於幾組最典型的單向板疲勞試驗數據，建立單向板在多軸循環應力作用下的疲勞壽命模型，並以此為基礎，發展同種材料體系的任意鋪層形式的多向層壓板在復雜循環載荷作用下的疲勞壽命預測方法。 -
After analyzing the function requirement of cad / cae / cam for fiber placement, and interface for further developing of existing cad / cae / cam software, further developing ug is selected as developing strategy for realizing cad / cam functions for fiber placement, and ansys is selected for realizing the cae function for fiber placement. effects made by stacking - sequence and fiber orientation angle on stress concentration around holes for tensile open - hole composite plate is studied. a new idea, general layup of composite laminates is comprised of simply - steered plies and fully - steered plies, is presented
本文就面向纖維鋪放的專用cad / cae / cam系統的軌跡規劃進行了相關研究，主要完成了以下幾方面的工作: 1 .基於纖維鋪放cad / cae / cam的需求，綜合分析了現有cad / cae / cam平臺性能及其二次開發介面，提出了應用ug平臺進行二次開發實現纖維鋪放cad / cam模塊與基於ansys平臺實現纖維鋪放的cae模塊相結合的開發策略。 -
In this paper, the residual strength of damaged composite laminates and their repaired structures under unidirectional tensile stress is calculated. the influence of the repair parameters, such as the diameter of the circle patch, the length and the width of the rectangle patch, the thickness of the patch, the stacking sequence is discussed
本文對含損傷復合材料層壓板及其修補結構在單向拉伸載荷作用下的剩餘強度進行了計算，同時對補片參數對修補效果的影響做了一些研究和探討，主要做了以下幾個方面的工作： 1 -
The residual strength of damaged composite laminates and their repaired structures are calculated, and the influence of the repair parameters is discussed by the finite element and program stated above. some useful conclusion can be drawn according to the curves, which show the influence of repair parameters to repair effect. for the laminate which contains a circle hole, the suggested patch shape is circle, the patch size is 2 to 3 times than the diameter of damaged hole, the patch thickness is equal to the parent laminate and the patch stacking sequence is the same as the parent laminate
用所建立的二維有限元模型和編寫的有限元程序計算損傷板及其修補結構的剩餘強度，並分析了修補參數對修補效果的影響；根據本文計算得到的修補參數對修補效果的影響曲線，可以得到如下結論： ?對于含孔復合材料層壓板，當圓形補片與母板鋪排順序相同、直徑為損傷孔直徑2 3倍、相對厚度為100時能夠獲得比較好的修補效果。 -
In upper level optimization, the thickness and geometry factors of composite skins and webs as well as other structural dimensions are taken as design variables. then, considering the behavior constraints and the side constraints, the structural mass is minimized by the mathematical programming technique. in lower level optimization, the mathematical programming technique or the genetic algorithm ( ga ) is used to search the practical stacking sequence of composite skins and webs to realize the given thickness and geometry factors from upper level optimization
底層優化設西北工業大學博士學位論文計以復合材料蒙皮和腹板等層合板各分層的厚度（或鋪層數） 、鋪層角和鋪層順序為設計變量，以層合板的幾何因子與頂層優化設計給出的最優幾何因子之間的誤差最小為目標，考慮層合板厚度和製造工藝性約束，採用數學規劃方法或遺傳演算法（ geneticalgorithm ，簡稱ga ）求出底層最優設計變量。 -
In this paper, it first defines the rule of basic structures in xyz / e, analyzes the analogies between xyz / adl design elements and uml modeling elements and defines the conversion rule, and uses uml extension mechanism and object constraint language to perfect the conversion. and then it selects class diagram and composite structure new in uml2. 0 for research, defines how to convert them to xyz / adl. there has been some research for the conversion from uml state machine diagram, activity diagram and sequence diagram to xyz / e
本文具體工作如下:從xyz / adl到uml的轉換，首先定義了xyz / adl的語義基礎? ? xyz / e的基本結構到uml的轉換規則，接著通過分析xyz / adl的設計元素和uml建模元素之間的語義相似，定義了二者之間的轉換規則，並用uml的擴展機制和對象約束語言ocl描述進一步的約束來完善相應的轉換過程;另外對于從uml到xyz / adl的轉換，本文著重對uml類圖進行研究，定義了從uml類圖到xyz / adl的轉換機制，也對uml2 . 0新增加的組成結構圖到xyz / adl的轉換進行了定義，同時亦對國內已經開展的uml狀態圖、活動圖、順序圖到xyz / e的轉換機制研究作了簡要介紹。
分享友人