Specification for Exchange of Product Analysis Data: Version 3 by Deborah ThomasSpecification for Exchange of Product Analysis Data: Version 3 by Deborah Thomas

Specification for Exchange of Product Analysis Data: Version 3

EditorDeborah Thomas, Jan Van Maanen, Michael Mead

Paperback | August 23, 1989

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During the past 25 years computers have been introduced in industry to perform technical tasks such as drafting, design, process planning, data acquisition, process control, and quality assurance. Computerized solutions nevertheless have normally been single, isolated devices within a manufacturing plant. Computer technology is still evolving rapidly. The life cycle of todays' products and production methods is shortening, with continuously increasing requirements of customers, and a trend to market interrelations between companies at a national and international level. This urges a need for efficient storage retrieval and exchange of information. Integration of information flow is urgent inside companies to closely connect together departments, which used to work, more or less, on their own. On the other hand direct communication with outside customers, suppliers, and partner institutions will often determine the position of an enterprise among the competitors. In this sense, computer integrated manufacturing (CIM) is the key of today for the competitiveness of tomorrow. But the realisation of a future­ oriented CIM concept is not possible without powerful, widely accepted, and standardised interfaces. They are the vital issue on the way to CIM. They will contribute to harmonise data structures and information flows and play a major role for open CIM systems. Standardised interfaces should allow for: Access to data produced and archived on computing equipment which is no longer in active use; Communication between hardware and software from different vendors; Paperless exchange of information.
Title:Specification for Exchange of Product Analysis Data: Version 3Format:PaperbackDimensions:162 pagesPublished:August 23, 1989Publisher:Springer Berlin HeidelbergLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:3540515798

ISBN - 13:9783540515791

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Table of Contents

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.