Specification for Exchange of Product Analysis Data: Version 3 (Research Reports Esprit / Project 322. CAD Interfaces (CAD*1))

Deborah Thomas et T Stonier

ISBN 10: 3540515798 / ISBN 13: 9783540515791

Editore: Springer, 1992

Ancien livre de bibliothèque. Légères traces d'usure sur la couverture. Edition 1992. Tome 3. Ammareal reverse jusqu'à 15% du prix net de cet article à des organisations caritatives. ENGLISH DESCRIPTION Book Condition: Used, Good. Former library book. Slight signs of wear on the cover. Edition 1992. Volume 3. Ammareal gives back up to 15% of this item's net price to charity organizations. Codice articolo E-582-891

Riassunto:

This book presents a complete specification of a neutral file for exchange of product analysis data. The topics covered are wider than any previous standard in this area and include the finite element mesh, properties, loads, constraints, analysis selection, output control, substructuring and results, for static, thermal and dynamic analyses. The specification is presented in both formal and informal ways. The syntax is formally described in Backus-Naur Form and a reference model for the data is given in an information modelling language called Express. These formal methods are state-of-the-art and facilitate the automatic generation of software tools to read and write the neutral files. In addition, an informal description and an example are given for each entity. The topic is treated in enough depth to enable the reader to implement the specification. The book also includes a chapter which looks at the problems of transforming CAD geometry into a suitable form for input to a finite element mesh generator. Some initial heuristic rules are presented.

Contenuti: A. General Information.- A.1 Executive Summary.- A.1.1 General Introduction.- A.1.2 Objectives.- A.1.3 Achievements.- A.1.4 Contribution to CAD*I.- A.1.5 Description of the Report.- A.2 Background Information.- A.2.1 Exchange of Product Analysis Data.- A.2.2 Existing Standards.- A.2.3 Approach to Design of Specification.- A.3 Example Neutral File.- A.4 General File Structure.- A.4.1 Product Definition and Product Analysis Domains.- A.4.2 Interaction between File and Processors.- A.4.3 Internal Organisation of the File.- A.5 External Envelope Concept.- B. Reference Section.- B.1 Syntax Definition.- B.1.1 The Alphabet.- B.1.2 Token Definitions.- B.1.3 BNF Description of the File.- B.1.4 Description of EXPRESS for FE Specification.- B.1.4.1 Entities and Attributes.- B.1.4.2 Base Types.- B.1.4.3 Entity References.- B.1.4.4 Enumeration.- B.1.4.5 Unique and Optional.- B.1.4.6 Aggregates.- B.1.4.7 Other Definition Constructs.- B.1.4.8 Constraints.- B.2 Levels of the Neutral File.- B.3 Keywords for FE Model Description.- B.3.1 OPENMODEL.- B.3.2 UNITS.- B.3.3 COORD.- B.3.4 FREEDOM.- B.3.5 NODE.- B.3.6 ISO.- B.3.7 ISOFULL.- B.3.8 ANIS02D.- B.3.9 ANIS03D.- B.3.10 MATERIAL.- B.3.11 PBAR.- B.3.12 BEAMG.- B.3.13 BEAMI.- B.3.14 BEAML.- B.3.15 BEAMU.- B.3.16 BEAMT.- B.3.17 BEAMO.- B.3.18 BEAMR.- B.3.19 STIFF.- B.3.20 DAMP.- B.3.21 PMASS.- B.3.22 THICK.- B.3.23 THICKV.- B.3.24 PROPERTY.- B.3.25 ORI.- B.3.26 OR3.- B.3.27 ORIENT.- B.3.28 MASS.- B.3.29 DAMPER.- B.3.30 SPRING.- B.3.31 BAR.- B.3.32 BEAM2.- B.3.33 TRI3.- B.3.34 TRI6.- B.3.35 TRI7V.- B.3.36 QUAD4.- B.3.37 QUAD8.- B.3.38 QUAD9V.- B.3.39 TETRA4.- B.3.40 TETRA10.- B.3.41 TETRA15V.- B.3.42 PENTA6.- B.3.43 PENTA15.- B.3.44 PENTA21V.- B.3.45 HEXA8.- B.3.46 HEXA20.- B.3.47 HEXA27V.- B.3.48 CLOSEMODEL.- B.4 Keywords for the FE Analysis.- B.4.1 OPENANA.- B.4.2 COLLECT.- B.4.3 CDOFLIST.- B.4.4 SCOND.- B.4.5 DCOND.- B.4.6 COUPLELIST.- B.4.7 NOCOUPLE.- B.4.8 COPY.- B.4.9 ASSEM.- B.4.10 TRN.- B.4.11 TRE.- B.4.12 ALLNODES.- B.4.13 ALLELEMS.- B.4.14 NODELIST.- B.4.15 ELEMLIST.- B.4.16 NODAL.- B.4.17 ELEMENTAL.- B.4.18 PRESET1.- B.4.19 PRESET2.- B.4.20 MPC.- B.4.21 TEMP.- B.4.22 L0ADP1.- B.4.23 LOADP2.- B.4.24 FREQRG.- B.4.25 STEADY.- B.4.26 IMPULS.- B.4.27 RECTAN.- B.4.28 SAWTOO.- B.4.29 SINUS.- B.4.30 SWEEPL.- B.4.31 SWEEPE.- B.4.32 STARTL.- B.4.33 STARTE.- B.4.34 RANDOM.- B.4.35 DYNLOAD.- B.4.36 DISCRLOAD.- B.4.37 NODELOAD.- B.4.38 LOADL1.- B.4.39 LOADL2.- B.4.40 EDGELOAD.- B.4.41 LOADS1.- B.4.42 LOADS2.- B.4.43 SURFLOAD.- B.4.44 LOADV1.- B.4.45 LOADV2.- B.4.46 ELEMLOAD.- B.4.47 GRAVLOAD.- B.4.48 TEMPLOAD.- B.4.49 CONVEC.- B.4.50 FLUX.- B.4.51 QVOL.- B.4.52 QVOLP.- B.4.53 FREQRANGE.- B.4.54 TIMERANGE.- B.4.55 MDCONST.- B.4.56 MODALDAMP.- B.4.57 ANSTATIC.- B.4.58 ANREIGV.- B.4.59 ANCEIGV.- B.4.60 ANFRESP.- B.4.61 ANTRESP.- B.4.62 ANSTEMP.- B.4.63 OUTDISP.- B.4.64 OUTSTRESS.- B.4.65 OUTSTRAIN.- B.4.66 OUTFORCE.- B.4.67 FIRSTFR.- B.4.68 MODELIST.- B.4.69 FREQOUT.- B.4.70 OUTEIGFR.- B.4.71 OUTMODESH.- B.4.72 OUTTEMP.- B.4.73 OUTFLUX.- B.4.74 CLOSEANA.- B.5 Keywords for FE Results.- B.5.1 OPENFERES.- B.5.2 ANCASE.- B.5.3 DISPR.- B.5.4 DISPC.- B.5.5 STRENOR.- B.5.6 STRENOC.- B.5.7 STREEQR.- B.5.8 STREEQC.- B.5.9 STREPRR.- B.5.10 STREPRC.- B.5.11 STREENR.- B.5.12 STREENC.- B.5.13 STREEIR.- B.5.14 STREEIC.- B.5.15 STRANOR.- B.5.16 STRANOC.- B.5.17 STRAEQR.- B.5.18 STRAEQC.- B.5.19 STRAPRR.- B.5.20 STRAPRC.- B.5.21 STRAENR.- B.5.22 STRAENC.- B.5.23 STRAEIR.- B.5.24 STRAEIC.- B.5.25 NODFORCER.- B.5.26 NODFORCEC.- B.5.27 EIGFR.- B.5.28 DAMPRAT.- B.5.29 NODTEMP.- B.5.30 NODFLUX.- B.5.31 RC.- B.5.32 MATSEQ.- B.5.33 MATBAND.- B.5.34 MATGEN.- B.5.35 MATSHP.- B.5.36 MATDEF.- B.5.37 MATVAL.- B.5.38 CLOSEFERES.- B.6 Notes.- C. Implementation.- C.1 Processors for FE data.- C.2 Software Developed by the Partners.- C.2.1 Software Developed by NEH.- C.2.1.1 Program File Handler.- C.2.1.2 Program NEH61.- C.2.1.3 Program NEH62.- C.2.1.4 Program NEH63.- C.2.2 Software Developed by RAL.- C.2.2.1 Program RDNF.- C.2.2.2 PRENAS.- C.2.2.3 PRE-NF.- C.2.2.4 NF2FG.- C.2.3 Software Developed by GfS.- C.2.3.1 Program NFUTIL.- C.2.3.2 Program FEREAD H.- C.2.3.3 Program FEINW.- C.2.3.4 Program FEOUTW.- C.2.3.5 Program GEOREAD.- C.2.4 Software Developed by ERDISA.- C.2.4.1 Program CADMOD.- C.2.5 Software Developed by INITEC.- C.2.5.1 Program IENF.- C.2.5.2 Program CVNF.- C.2.5.3 Program NFAN.- D. Discussion of the CAD-FEM Data Transfer.- D.1 Introduction.- D.2 CAD/FEM Interchange Environment.- D.3 The CAD*I Approach to the CAD/FEM Interface.- D.4 Guidelines for FE Modelling.- D.4.1 The Complexities Involved.- D.4.1.1 The Requirements of the Solution.- D.4.1.2 The Nature of the Problem.- D.4.1.3 The Mechanics of the Problem.- D.4.1.4 The Geometry.- D.4.1.5 The Loads.- D.4.1.6 The Computer Code.- D.4.2 Advanced FE Modelling.- D.4.2.1 The State of the Art of Automatic FE Modelling.- D.4.2.2 An Expert System for the CAD/FEM Interface.- D.5 Heuristic Rules for FE Modelling.- D.5.1 Development of a Model of Heuristic Rule Sets.- D.5.1.1 Heuristic Rule Set 1: Model Regions.- D.5.1.2 Heuristic Rule Set 2: Required Overall Accuracy.- D.5.1.3 Heuristic Rule Set 3: Type of Analysis.- D.5.1.4 Heuristic Rule Set 4: Type of Problem.- D.5.1.5 Heuristic Rule Set 5: Geometry Type.- D.5.1.6 Heuristic Rule Set 6: Geometry Complexity.- D.5.1.7 Heuristic Rule Set 7: Load Time Distribution.- D.5.1.8 Heuristic Rule Set 8: Program Analysis Capabilities.- D.5.2 Implementing the Heuristic Rules in an Expert System.- D.6 The FEM to CAD Interface.- D.6.1 Checking the Analysis Results.- D.6.2 Checking the Design.- D.6.2.1 Reconsidering the Analysis.- D.6.2.2 Reconsidering the Qualification Procedure.- D.6.2.3 Reconsidering the Design.- D.6.3 Recomposing the CAD Data Base.- D.7 Conclusions.- References.

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Titolo: Specification for Exchange of Product ...
Casa editrice: Springer
Data di pubblicazione: 1992
Legatura: Softcover
Condizione: Bon