汎用非線形構造解析システムFINAS version13.0における機能拡張

Explanation on the new options and extensions of FINAS updated version 13.0

月森 和之; 岩田 耕司

Tsukimori, Kazuyuki; not registered

高速炉の開発に伴う構造解析上の問題解決のために開発された汎用非線形構造解析システムFINASについて,平成5年4月から平成7年7月までに実施した改訂第13.0版において新規に組込んだ機能を中心に,拡張内容及びベースとなる理論を解説し,機能検証のための解析例題を示した。解説した機能拡張項目は,3種類の弾性支床要素,4節点四辺形平面ひずみ要素,3次元梁要素でのオフセット機能,角速度と回転軸による遠心力の定義,熱流動解析のための2節点熱流路要素,スペクトル応答解析における各種の機能等である。

This report describes the explanation on the new options and extensions of "FINAS" (FInite Element Nonlinear Structural Analysis System) updated version 13.0 (developed from April 1993 to July 1995). The items are as follows. (1)3 kinds of spring-supported base elements (2)4-node quadrilateral plane strain element (3)Off-set function utilized with 3-dimensional beam element (4)Definition of centrifugal force by angular velocity and pivot (5)2-node heat flow element for thermal hydraulic analysis (6)Addition of CQC method and ABS method as mode superposition method for spectrum response analysis (7)Addition of logarithmic interpolation as spectrum data interpolation method for spectrum response analysis (8)*Multi-point input function of spectrum data in spectrum response analysis (9)Output function of maximum reaction force in spectrum response analysis (10)Output function of member forces for shell element and bar element (11)Plotting function of normal stresses and shear stresses in the vectorial plot charts (12)Plotting function of user-defined state variables in the analysis by an arbitrary constitutive equation (13)**Scaling function in X-Y plane plotting function (14)Improvement of calculation efficiency in surface contact analysis (15)Addition of Sloan's argorithmin in renumber function (16)Calculation function of all eigenvalues in the analysis of structure system (17)Extension of the limit of maximum degrees of freedom (up to 4,000,000) (18)**Provision of user's subroutine for the arbitrary constitutive equation (19)**Provision of user's subroutine for the arbitrary element (20)Extension of two-surface cyclic plasticity model by introducing temperature dependency (21)Revision of execusion commands and monitering function of statistical information in UNIX environment (22)Automatic verification system in UNIX environment (23)Guide of utility programs supporting the development of FINAS (EWS version) The properties of new functions were verified ...