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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 3.2 Final//FR"><!-- Converted with LaTeX2HTML 95.1 (Fri Jan 20 1995) --><!-- by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds --><!-- Modified Simulog 03/97 --><HTML><HEAD><TITLE>1 Introduction</TITLE><LINK REL=STYLESHEET TYPE="text/css" HREF="./Modulef.css" TITLE="Modulef CSS"><meta name="description" value="1 Introduction"><meta name="keywords" value="Guide1"><meta name="resource-type" value="document"><meta name="distribution" value="global"></HEAD><BODY BGCOLOR="#FFFFFF"><P> <IMG SRC="../icons/smallmod.gif" WIDTH=211 HEIGHT=50 ALIGN=BOTTOM ALT="Modulef"><A NAME=tex2html367 HREF="node13.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/previous_motif.gif" ALT="previous"></A><A NAME=tex2html373 HREF="node13.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/up_motif.gif" ALT="up"></A><A NAME=tex2html375 HREF="node15.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/next_motif.gif" ALT="next"></A><A NAME=tex2html377 HREF="node2.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/contents_motif.gif" ALT="contents"></A><A HREF="../Guide1-18/node14.html"><IMG BORDER=0 SRC="../icons/zoom18.gif" ALIGN=BOTTOM ALT="[BIG]"></A><A HREF="../Guide1-14/node14.html"><IMG BORDER=0 SRC="../icons/zoom14.gif" ALIGN=BOTTOM ALT="[Normal]"></A><A HREF="../Guide1-10/node14.html"><IMG BORDER=0 SRC="../icons/zoom10.gif" ALIGN=BOTTOM ALT="[small]"></A><BR><B> Next: </B> <A NAME=tex2html376 HREF="node15.html">1.1 Solving a concrete problem using </A><B>Up: </B> <A NAME=tex2html374 HREF="node13.html">Part II: How do I use </A><B> Prev: </B> <A NAME=tex2html368 HREF="node13.html">Part II: How do I use </A><B><A HREF="node2.html" >Contents</A></B><HR SIZE=3 WIDTH="75%"><H1><A NAME=SECTION04100000000000000000>1 Introduction</A></H1><P><P><P><BR><HR><P><P>MODULEF is an extensive general purpose finite element library containing a large number of modules which cater for problemsin thermal analysis, elasticity, fluid mechanics, etc. The aim of part <A HREF="node13.html#part2"> ii</A> of this user manual is to illustrate how such problems can be solved numerically with the aidof MODULEF. In order to do so, we will give a short introduction outlining the finite element concepts andimplementation by MODULEF, after which a number of test examples ispresented to familiarize the user with the various modules available in the MODULEF library. The purpose of the tests are:<UL><LI> to provide some simple examples which enable us to test the principal libraries of the MODULEF code for each implementation, <LI> to indicate the different steps to be followed in solving a typical problem, and <LI> to offer an introduction to MODULEF by working through some simple but fully treated examples. </UL><P>These tests are divided into two groups: <OL><LI> The first group contains the tests that are solved in a conversational manner, by calling the various preprocessors, or the general preprocessor <b> TOUTXX</b>, contained in the MODULEF code. <LI> The second group contains the tests executed in batch, by executing a series of FORTRAN programs contained in the <b> TEST</b> library.</OL><P>As an introduction, we first solve an example in detail showing, step by step, how data files are created, which modules to use and how to obtain the desired results and generate the corresponding plots. Having worked through this initial example thoroughly, we proceed to present six test examples which will be discussed morebriefly, and for which the data files have been created.<P>The tests and corresponding data files reside in the following two libraries:<UL><LI> Library <b> TEST</b> contains the FORTRAN programs corresponding to the tests (4, 5 and 6) which are executed in batch. <LI> Library <b> TESD</b> contains formatted files corresponding to all the tests (1 to 6).<P> These files fall into two categories:<P> <OL><LI> Data files of which the names always start with the letter <b> D</b>. <LI> Files containing the test solution. The names of these files begin with the letter <b> S</b>. </OL><P> The names of these files have the form <b> DnZZZZ.D</b> and <b> SnZZZZ.D</b> respectively, where: <DL COMPACT><DT>D<DD> is a letter common to all the data files, <DT>S<DD> is a letter common to all the solution files, <DT>n<DD> is the test number, and <DT>ZZZZ<DD> represents a chain of four characters describing the data structure(s) to be created by the activated program. <DT>.D<DD> indicates that it is a formatted file.<P> </DL><P> For example, the file <DL COMPACT><DT>D2NOPO.D<DD> contains the data for the program which creates the data structure <b> NOPO</b> for test 2, <DT>D1COMA.D<DD> contains the data for the program which creates data structure <b> MAIL</b> and <b> COOR</b> in test 1, <DT>D3FOMI.D<DD> results in the creation of data structures <b> FORC</b> and <b> MILI</b> for test 3, and the file <DT>S2TAES.D<DD> contains the stresses <b> TAE</b> corresponding to test 2.<P> </DL></UL><P>The resulting data structures (D.S.) generated by the various modules in tests 1 to 6 have the form <b> TnZZZZ</b>, where <DL COMPACT><DT>T<DD> is a letter common to all output data structures,<DT>n<DD> is the test number, and<DT>ZZZZ<DD> represents a chain of four characters describing the type of data structure created.<P> </DL>These data structures can be viewed by executing the preprocessor <b> IMAGXX</b>, and specifying the name of thefile containing the data structure to be output, directly on screen or on file. <BR><P>As mentioned earlier, the MODULEF code consists of a large number of program modules, each performing certain steps of the finite element solution procedure. It is therefore important to be able to extract information regarding modules, libraries, preprocessors, programs, etc., and their inter-relationships. The procedure for obtaining information regarding the MODULEF code is given in appendix <A HREF="node57.html#apppart2b">C</A>.<P>Practical and detailed information regarding execution of the tests is contained in file <b> TEST.HELP</b>of the library <b> TESD</b>.<P>Before proceeding to the test examples, let us start by briefly discussing the finite element method of solution and implementation by MODULEF.<P><P><P><P><P><BR> <HR><UL> <LI> <A NAME=tex2html378 HREF="node15.html#SECTION04110000000000000000">1.1 Solving a concrete problem using MODULEF</A></UL><HR SIZE=3 WIDTH="75%"><IMG SRC="../icons/smallmod.gif" WIDTH=211 HEIGHT=50 ALIGN=BOTTOM ALT="Modulef"><A NAME=tex2html367 HREF="node13.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/previous_motif.gif" ALT="previous"></A><A NAME=tex2html373 HREF="node13.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/up_motif.gif" ALT="up"></A><A NAME=tex2html375 HREF="node15.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/next_motif.gif" ALT="next"></A><A NAME=tex2html377 HREF="node2.html"><IMG BORDER=0 ALIGN=BOTTOM SRC="../icons/contents_motif.gif" ALT="contents"></A><A HREF="../Guide1-18/node14.html"><IMG BORDER=0 SRC="../icons/zoom18.gif" ALIGN=BOTTOM ALT="[BIG]"></A><A HREF="../Guide1-14/node14.html"><IMG BORDER=0 SRC="../icons/zoom14.gif" ALIGN=BOTTOM ALT="[Normal]"></A><A HREF="../Guide1-10/node14.html"><IMG BORDER=0 SRC="../icons/zoom10.gif" ALIGN=BOTTOM ALT="[small]"></A><BR><B> Next: </B> <A NAME=tex2html376 HREF="node15.html">1.1 Solving a concrete problem using </A><B>Up: </B> <A NAME=tex2html374 HREF="node13.html">Part II: How do I use </A><B> Prev: </B> <A NAME=tex2html368 HREF="node13.html">Part II: How do I use </A><B><A HREF="node2.html" >Contents</A></B><BR> <HR><P><ADDRESS></ADDRESS></BODY></HTML>⌨️ 快捷键说明
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