航空计算技术
航空計算技術
항공계산기술
AERONAUTICAL COMPUTER TECHNIQUE
2014年
2期
102-105,109
,共5页
复合材料开口结构%PCL%参数化建模%刚度等效原理
複閤材料開口結構%PCL%參數化建模%剛度等效原理
복합재료개구결구%PCL%삼수화건모%강도등효원리
composite laminates with cutouts%PCL%parametric modeling%principle of stiffness equiva-lence
基于MSC．Patran软件，运用PCL语言编写了参数化建模程序，实现了多种开口形式和加强形式的复合材料开口结构二维模型快速化、自动化建立。运用刚度等效原理将复合材料任意截面形式的筋条等效成各向同性矩形实心筋条，解决了目前有限元软件中没有提供复合材料一维梁单元的问题。结合复合材料开口结构刚度计算与优化设计实例，验证了建模方法的准确性与实用性。
基于MSC．Patran軟件，運用PCL語言編寫瞭參數化建模程序，實現瞭多種開口形式和加彊形式的複閤材料開口結構二維模型快速化、自動化建立。運用剛度等效原理將複閤材料任意截麵形式的觔條等效成各嚮同性矩形實心觔條，解決瞭目前有限元軟件中沒有提供複閤材料一維樑單元的問題。結閤複閤材料開口結構剛度計算與優化設計實例，驗證瞭建模方法的準確性與實用性。
기우MSC．Patran연건，운용PCL어언편사료삼수화건모정서，실현료다충개구형식화가강형식적복합재료개구결구이유모형쾌속화、자동화건립。운용강도등효원리장복합재료임의절면형식적근조등효성각향동성구형실심근조，해결료목전유한원연건중몰유제공복합재료일유량단원적문제。결합복합재료개구결구강도계산여우화설계실례，험증료건모방법적준학성여실용성。
Based on MSC .Patran pre-processor ,the procedure of parametric modeling is programmed with PCL,which can build two-dimensional finite element models of composite laminates with cutouts automat-ically and rapidly .Depending on the principle of stiffness equivalence , one-dimensional isotropic solid rectangular beam is used to equal arbitrary cross-section composite ribs , which solves the problem that currently used CAE software don′t provide the one-dimensional composite beam element .At last,the ac-curacy and practicality of this modeling theory are proved by an example about stiffness calculation and optimization design .
