Holdings: Parametric and feature based CAD CAM

Parametric and feature based CAD CAM: concepts, techniques, and applications

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Bibliographic Details
Main Authors:	Shah, Jami J. (Author), Mäntylä, Martti (Author)
Format:	Book
Language:	English
Published:	New York <<[u.a.]>> Wiley 1995
Series:	A Wiley-Interscience publication
Subjects:	CAD/CAM systems CAD
Online Access:	Publisher description Table of Contents Inhaltsverzeichnis
Physical Description:	XX, 619 S. Ill., graph. Darst.
ISBN:	0471002143

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adam_text	PARAMETRIC AND FEATURE-BASED CAD/CAM CONCEPTS, TECHNIQUES, AND APPLICATIONS JAMI J. SHAH DEPARTMENT OF MECHANICAL AND AEROSPACE ENGINEERING ARIZONA STATE UNIVERSITY, TEMPE MARTTI MANTYLA LABORATORY OF INFORMATION PROCESSING SCIENCE HELSINKI UNIVERSITY OF TECHNOLOGY, ESPOO, FINLAND A WILEY-LNTERSCIENCE PUBLICATION JOHN WILEY & SONS, INC. NEW YORK / CHICHESTER / BRISBANE / TORONTO / SINGAPORE CONTENTS PART I BACKGROUND 1 1 INTRODUCTION 3 1.1 AGILE MANUFACTURING 3 1.2 PRODUCT MODELS 4 1.3 PRODUCT MODELS IN DESIGN 6 1.4 FEATURE MODELS 8 1.5 FEATURES AND GEOMETRY 9 1.6 COGNITIVE FOUNDATIONS 10 1.7 FEATURES IN ENGINEERING 11 1.8 FEATURE DESCRIPTION 13 1.9 BRIEF HISTORY OF GEOMETRIC MODELING 14 1.9.1 CAD/CAM SYSTEMS 14 1.9.2 FEATURE-BASED SYSTEMS 17 1.10 OUTLINE OF THE BOOK 18 REVIEW QUESTIONS 19 BIBLIOGRAPHY 20 2 GEOMETRIC MODELING / 23 2.1 GOALS OF GEOMETRIC MODELING 23 2.2 GRAPHICAL MODELS 25 XI XII CONTENTS 2.2.1 TWO-DIMENSIONAL GRAPHICAL MODELS 26 2.2.2 THREE-DIMENSIONAL GRAPHICAL MODELS 27 2.3 SURFACE MODELS 29 2.3.1 PARAMETRIC CURVES 29 2.3.2 PARAMETRIC SURFACES 45 2.4 SOLID MODELS 51 2.4.1 GOALS OF SOLID MODELING 51 2.4.2 DECOMPOSITION MODELS 53 2.4.3 CONSTRUCTIVE MODELS 56 2.4.4 BOUNDARY MODELS 67 2.4.5 NONMANIFOLD MODELS 74 2.5 PARAMETRIC AND VARIATIONAL MODELS 78 2.5.1 CONCEPTS 79 2.5.2 PARAMETRIC/VARIATIONAL TECHNIQUES 80 REVIEW QUESTIONS 85 BIBLIOGRAPHY 86 PART II FUNDAMENTALS 89 3 FEATURE CONCEPTS 91 3.1 MOTIVATION FOR FEATURES 91 3.1.1 ROLE OF GEOMETRY IN DESIGN AND MANUFACTURING 92 3.1.2 DEFICIENCIES OF GEOMETRIC MODELS 92 97 97 98 98 99 100 101 102 105 106 108 3.2 3.3 3.4 3.5 FEATURE 3.2.1 3.2.2 3.2.3 FEATURE 3.3.1 3.3.2 3.3.3 3.3.4 MODELING DEFINITION OF FEATURE FEATURE ATTRIBUTES TYPES OF FEATURES PROPERTIES GENERIC AND SPECIFIC PROPERTIES INTRINSIC PROPERTIES EXTRINSIC PROPERTIES OTHER ATTRIBUTES , COMPOSITE FEATURES FEATURE TAXONOMIES CONTENTS XIII 3.6 FEATURE VALIDATION 110 3.7 FEATURE MAPPING 115 3.8 FEATURES VERSUS GEOMETRY 117 REVIEW QUESTIONS 120 BIBLIOGRAPHY 121 4 FEATURE CREATION TECHNIQUES 122 4.1 OVERVIEW 122 4.2 INTERACTIVE FEATURE CREATION 124 4.3 AUTOMATIC FEATURE RECOGNITION 125 4.3.1 MACHINING REGION RECOGNITION 126 4.3.2 PRE-DEFINED FEATURE RECOGNITION 127 4.4 DESIGN BY FEATURES 132 4.4.1 PROCEDURAL DESIGN BY FEATURES 133 4.4.2 DECLARATIVE DESIGN BY FEATURES 134 4.5 COMPARISON OF FEATURE CREATION TECHNIQUES 135 4.6 UNIFICATION OF FEATURE CREATION TECHNIQUES 136 REVIEW QUESTIONS 137 BIBLIOGRAPHY 138 PART III APPLICATION OF FEATURES 141 5 FEATURES IN DEISGN 143 5.1 FEATURE-BASED PART CREATION 143 5.2 FEATURE IDENTIFICATION 148 5.2.1 FEATURIZING A PART 150 5.2.2 VALIDATION OF CANDIDATE FEATURE SETS 153 5.2.3 CASE STUDY: AUTOMOTIVE BODY PANEL 154 5.3 DESIGN BY FEATURES 157 5.3.1 PART CREATION BY FEATURES 157 5.3.2 VARIANT DESIGN WITH PART FAMILIES 158 5.4 TOLERANCE SPECIFICATION 161 XIV CONTENTS 5.4.1 REVIEW OF TOLERANCE SPECIFICATIONS 5.4.2 INTEGRATING FEATURES, TOLERANCES, AND GEOMETRY 5.5 DESIGN OF ASSEMBLIES 5.5.1 ASSEMBLY MODELING 5.5.2 ASSEMBLY FEATURES REVIEW QUESTIONS BIBLIOGRAPHY FEATURES IN MANUFACTURING 6.1 MANUFACTURING FEATURES 6.2 ISSUES AND ALTERNATIVE APPROACHES 6.2.1 LEVEL OF ABSTRACTION 6.2.2 LEVEL OF SPECIALIZATION 6.2.3 DIMENSIONALITY 6.2.4 COMPLETENESS OF FEATURE MODEL 6.2.5 FEATURE RELATIONSHIPS 6.2.6 TEMPORAL ORDERING 6.2.7 PRODUCT FAMILIES 6.3 GENERATION OF MANUFACTURING FEATURES 6.3.1 INTERACTIVE FEATURE IDENTIFICATION 6.3.2 DESIGN BY MANUFACTURING FEATURES 6.3.3 DESIGN TO MANUFACTURING FEATURE MAPPING 6.3.4 MANUFACTURING FEATURE RECOGNITION 6.4 GROUP TECHNOLOGY CODING 6.5 FEATURE-BASED PROCESS PLANNING 6.6 FEATURE-BASED ASSEMBLY PLANNING 6.7 FEATURE-BASED INSPECTION PLANNING 6.8 FEATURE-BASED MANUFACTURABILITY EVALUATION 6.9 OTHER MANUFACTURING APPLICATIONS REVIEW QUESTIONS BIBLIOGRAPHY FEATURE MAPPING AND DATA EXCHANGE 7.1 FEATURE MAOOINS 163 164 173 175 178 181 181 187 188 192 192 193 196 197 197 199 199 200 201 201 202 202 204 207 208 213 213 216 217 217 219 219 CONTENTS XV 7.1.1 MAPPING CLASSES 221 7.1.2 MAPPING TECHNIQUES 223 7.2 FEATURE DATA EXCHANGE 231 7.2.1 INTRODUCTION TO STEP 232 7.3 ISO10303-48: FORM FEATURES 234 7.3.1 FORM FEATURE SCHEMA 235 7.3.2 REPRESENTATION SCHEMA 240 7.3.3 FINAL REMARKS 245 7.3.4 CASE STUDY: STEP-PART 48 REPRESENTATION 247 7.4 ISO10303-224: PRODUCT DEFINITION FOR PROCESS PLANNING 248 REVIEW QUESTIONS 254 BIBLIOGRAPHY 254 PART IV DESIGN AND IMPLEMENTATION 257 8 DESIGN-BY-FEATURES TECHNIQUES 259 8.1 ARCHITECTURAL FRAMEWORK 259 8.1.1 REPRESENTATION OF FEATURE DEFINITIONS 261 8.1.2 SUPPORT FOR USER-DEFINED FEATURES 263 8.1.3 TYPES OF LINKAGES WITH A GEOMETRIC MODELING SYSTEM 266 8.2 PROCEDURAL TECHNIQUES 270 8.2.1 DEFINITION BY GENERAL-PURPOSE PROGRAMMING LANGUAGE 271 8.2.2 SPECIAL-PURPOSE FEATURE DEFINITION LANGUAGES 271 8.3 DECLARATIVE TECHNIQUES 275 8.3.1 CONSTRAINT SPECIFICATION 275 8.3.2 CONSTRAINT-BASED FEATURE DEFINITION 280 8.3.3 CONSTRAINT SATISFACTION 282 8.4 FEATURE REFINEMENT 297 8.5 FEATURE RELATIONS 299 8.5.1 HANDLES IN QTC 299 8.5.2 GEOMETRIC TREES IN GEONODE 299 8.6 PART AND PRODUCT FAMILY MODELING 303 8.7 CUTTING AND PASTING FEATURES 306 REVIEW QUESTIONS 311 XVI CONTENTS BIBLIOGRAPHY 312 9 FEATURE RECOGNITION TECHNIQUES 316 9.1 ARCHITECTURAL FRAMEWORK 317 9.1.1 DESIGN 318 9.1.2 ENGINEERING ANALYSIS 319 9.1.3 GROUP TECHNOLOGY CODING 319 9.1.4 MANUFACTURING 320 9.2 RECOGNITION FROM BOUNDARY MODELS 321 9.2.1 GRAPH MATCHING 321 9.2.2 SYNTACTIC RECOGNITION 328 9.2.3 RULE-BASED ALGORITHMS 336 9.2.4 PROCEDURAL FEATURE RECOGNITION 337 9.3 RECOGNITION BY VOLUME DECOMPOSITION ALGORITHMS 337 9.3.1 ALTERNATING SUM OF VOLUMES DECOMPOSITION 338 9.3.2 DELTA VOLUME DECOMPOSITION 339 9.3.3 RECOGNITION OF MULTIPLE FEATURE MODELS 342 9.4 RECOGNITION FROM CSG MODELS 351 9.5 RECOGNITION FROM TWO-DIMENSIONAL DRAWINGS 354 9.6 COMPARISON OF FEATURE RECOGNITION TECHNIQUES 358 9.7 HYBRID SYSTEMS 359 9.7.1 HYBRID METHODS FOR INTERACTING FEATURES 360 9.7.2 REAL-TIME FEATURE RECOGNITION 363 9.8 RESEARCH TRENDS 364 9.8.1 NEURAL NETWORK BASED RECOGNITION 365 9.8.2 DIFFERENTIAL DEPTH FILTER 365 9.8.3 INCREMENTAL RECOGNITION 367 REVIEW QUESTIONS 370 BIBLIOGRAPHY 372 10 IMPLEMENTATION TOOLS 376 10.1 OVERVIEW 376 10.2 TECHNIQUES AND NOTATION 377 10.2.1 FRAMES AND OBJECT-ORIENTED PROGRAMMING 378 CONTENTS XVII 10.2.2 INSTANCE FRAMES 380 10.2.3 CLASS FRAMES 381 10.2.4 CLASS HIERARCHY 382 10.2.5 INSTANCE CREATION AND INHERITANCE 383 10.2.6 METHODS 386 10.3 FEATURE DEFINITION AND FEATURE TAXONOMY 389 10.3.1 ABSTRACT FEATURES 389 10.3.2 BASIC FEATURES 391 10.3.3 CONTAINER FEATURES 393 10.3.4 FEATURE INSTANCE HIERARCHY 396 10.4 FEATURE GEOMETRY TOOLS 398 10.4.1 GEOMETRY DEFINITION FRAME 398 10.4.2 GRAPH REPRESENTATION OF GEOMETRY 399 10.4.3 AUXILIARY DEFINITIONS 404 10.4.4 RULES 404 10.4.5 FEATURE ATTRIBUTES 404 10.4.6 FEATURE GEOMETRY DEFINITION 405 10.4.7 EVALUATING PART GEOMETRY 406 10.5 CONSTRAINT TOOLS 408 10.5.1 SKYBLUE 408 10.5.2 ARCHITECTURE OF ICONF 409 10.5.3 CONSTRAINT DEFINITION LANGUAGE 410 10.5.4 CONSTRAINTS IN USE 412 10.5.5 DYNAMIC CONSTRAINT CREATION 415 10.5.6 CASE STUDY 418 10.6 FEATURE RECOGNITION TOOLS 421 10.6.1 BASIC CONCEPTS 421 10.6.2 FEATURE TOPOLOGY CLASSIFICATION 422 10.6.3 PREPROCESSING 423 10.6.4 SEARCHING FOR A BASE FEATURE 423 10.6.5 SEARCHING FOR SINGLE AND CONTAINER FEATURES 425 10.6.6 INTERPRETING FEATURE COMBINATIONS 425 10.6.7 INSTANTIATION OF FEATURE CLASSES 427 10.6.8 INCREMENTAL OPERATION 428 10.7 PROCEDURAL FEATURE RECOGNITION WITH C 431 10.7.1 PREPROCESSING 431 XVIII CONTENTS 10.7.2 INTERPRETED LANGUAGE 433 10.7.3 FEATURE RECOGNITION FUNCTIONS 435 10.7.4 EXAMPLES 438 10.8 PROCEDURAL DESIGN BY FEATURES 440 10.8.1 FEATURE DEFINITION 440 10.8.2 MODEL MANAGEMENT 445 10.9 FEATURE-GEOMETRY PROTOCOL 447 10.9.1 HIGH-LEVEL FUNCTIONS 447 10.9.2 COMMUNICATION MODE 448 10.9.3 SYSTEM ARCHITECTURE 449 10.9.4 ACIS IMPLEMENTATION 451 10.10 USER INTERFACE DESIGN 465 REVIEW QUESTIONS 472 BIBLIOGRAPHY 475 11 FEATURE-BASED PROCESS PLANNING 478 11.1 ARCHITECTURAL FRAMEWORK 479 11.1.1 GOALS OF COMPUTER-AIDED PROCESS PLANNING 479 11.1.2 EARLY PROCESS PLANNING SYSTEMS 482 11.1.3 CURRENT-GENERATION PROCESS PLANNING SYSTEMS 483 11.2 PROCESS PLANNING FEATURES 486 11.2.1 PROCESS PLANNING FEATURE ISSUES 486 11.2.2 EXAMPLES OF PROCESS PLANNING FEATURES 488 11.3 PROCESS MODELS 498 11.3.1 A MODEL FOR MACHINING OPERATIONS 498 11.3.2 MAPPING FEATURES TO PROCESSES BASED ON DEEP KNOWLEDGE 500 11.3.3 MAPPING FEATURES TO PROCESSES BASED ON SHALLOW KNOWLEDGE 505 11.3.4 PROCESS CAPABILITIES 505 11.3.5 PROCESS CONSTRAINTS 507 11.3.6 PROCESS ECONOMICS 510 11.3.7 PROCESS RESOURCES 510 11.3.8 PROCESS PLAN REPRESENTATION 511 11.4 OPERATION PLANNING 513 11.4.1 OPERATION PLANNING IN SIPS 11.4.2 OPERATION PLANNING IN ROCOST 11.5 SETUP PLANNING 11.5.1 SETUP PLANNING IN HUTCAPP 11.5.2 SETUP PLANNING IN QTC 11.6 FIXTURE PLANNING 11.6.1 FIXTURE PRINCIPLES 11.6.2 FIXTURE PLANNING IN PART 11.6.3 FIXTURE PLANNING IN MCOES 11.6.4 FIXTURE PLANNING IN ROCOST 11.7 NC PROGRAM GENERATION REVIEW QUESTIONS BIBLIOGRAPHY CONTENTS XIX 514 517 521 521 525 528 528 530 532 535 537 541 543 PARTV BEYOND FEATURES 545 12 FUTURE CAD/CAM TECHNOLOGIES 547 12.1 OBJECTIVES 547 12.1.1 DESIGN PROCESS 548 12.2 TOOLS FOR PRELIMINARY DESIGN 550 12.2.1 EXPERT SYSTEMS 550 12.2.2 TOP-DOWN DESIGN 551 12.2.3 FUNCTION-BASED DESIGN 557 12.2.4 BOND GRAPHS 562 12.3 COLLABORATIVE DESIGN TOOLS 565 12.3.1 SYSTEMS BASED ON DESIGN HISTORY 565 12.3.2 CONFIGURATION DESIGN 568 12.4 QUALITATIVE REASONING METHODS 571 12.5 EPILOGUE 572 REVIEW QUESTIONS / 573 BIBLIOGRAPHY 573 XX CONTENTS APPENDIXES 579 APPENDIX A MATHEMATICAL ELEMENTS 581 A.I GRAPH CONCEPTS 581 A. 1.1 DEFINITIONS 581 A. 1.2 REPRESENTATIONS 582 A. 1.3 TERMS AND PROPERTIES 583 A. 1.4 GRAPH ALGORITHMS 586 A.2 SET ALGEBRA 587 A.3 GEOMETRIC TRANSFORMATIONS 588 A.3.1 HOMOGENEOUS COORDINATES 589 A.3.2 COORDINATE TRANSFORMATIONS 589 A.3.3 COMBINATION OF TRANSFORMATIONS 590 REVIEW QUESTIONS 591 BIBLIOGRAPHY 591 APPENDIX B HALF-EDGE DATA STRUCTURE 593 B.I ENTITY TYPES 593 B.2 FACE RELATIONSHIPS 594 B.3 IMPLEMENTATION DETAILS 596 REVIEW QUESTIONS 599 BIBLIOGRAPHY 599 APPENDIX C LISTING OF PROCEDURAL INTERFACE FUNCTIONS 600 C. 1 CREATE AND DELETE FUNCTIONS 600 C.2 EVALUATION FUNCTIONS 602 C.3 GEOMETRIC INQUIRY FUNCTIONS 604 BIBLIOGRAPHY 608 INDEX 609
adam_txt	PARAMETRIC AND FEATURE-BASED CAD/CAM CONCEPTS, TECHNIQUES, AND APPLICATIONS JAMI J. SHAH DEPARTMENT OF MECHANICAL AND AEROSPACE ENGINEERING ARIZONA STATE UNIVERSITY, TEMPE MARTTI MANTYLA LABORATORY OF INFORMATION PROCESSING SCIENCE HELSINKI UNIVERSITY OF TECHNOLOGY, ESPOO, FINLAND A WILEY-LNTERSCIENCE PUBLICATION JOHN WILEY & SONS, INC. NEW YORK / CHICHESTER / BRISBANE / TORONTO / SINGAPORE CONTENTS PART I BACKGROUND 1 1 INTRODUCTION 3 1.1 AGILE MANUFACTURING 3 1.2 PRODUCT MODELS 4 1.3 PRODUCT MODELS IN DESIGN 6 1.4 FEATURE MODELS 8 1.5 FEATURES AND GEOMETRY 9 1.6 COGNITIVE FOUNDATIONS 10 1.7 FEATURES IN ENGINEERING 11 1.8 FEATURE DESCRIPTION 13 1.9 BRIEF HISTORY OF GEOMETRIC MODELING 14 1.9.1 CAD/CAM SYSTEMS 14 1.9.2 FEATURE-BASED SYSTEMS 17 1.10 OUTLINE OF THE BOOK 18 REVIEW QUESTIONS 19 BIBLIOGRAPHY 20 2 GEOMETRIC MODELING / 23 2.1 GOALS OF GEOMETRIC MODELING 23 2.2 GRAPHICAL MODELS 25 XI XII CONTENTS 2.2.1 TWO-DIMENSIONAL GRAPHICAL MODELS 26 2.2.2 THREE-DIMENSIONAL GRAPHICAL MODELS 27 2.3 SURFACE MODELS 29 2.3.1 PARAMETRIC CURVES 29 2.3.2 PARAMETRIC SURFACES 45 2.4 SOLID MODELS 51 2.4.1 GOALS OF SOLID MODELING 51 2.4.2 DECOMPOSITION MODELS 53 2.4.3 CONSTRUCTIVE MODELS 56 2.4.4 BOUNDARY MODELS 67 2.4.5 NONMANIFOLD MODELS 74 2.5 PARAMETRIC AND VARIATIONAL MODELS 78 2.5.1 CONCEPTS 79 2.5.2 PARAMETRIC/VARIATIONAL TECHNIQUES 80 REVIEW QUESTIONS 85 BIBLIOGRAPHY 86 PART II FUNDAMENTALS 89 3 FEATURE CONCEPTS 91 3.1 MOTIVATION FOR FEATURES 91 3.1.1 ROLE OF GEOMETRY IN DESIGN AND MANUFACTURING 92 3.1.2 DEFICIENCIES OF GEOMETRIC MODELS 92 97 97 98 98 99 100 101 102 105 106 108 3.2 3.3 3.4 3.5 FEATURE 3.2.1 3.2.2 3.2.3 FEATURE 3.3.1 3.3.2 3.3.3 3.3.4 MODELING DEFINITION OF FEATURE FEATURE ATTRIBUTES TYPES OF FEATURES PROPERTIES GENERIC AND SPECIFIC PROPERTIES INTRINSIC PROPERTIES EXTRINSIC PROPERTIES OTHER ATTRIBUTES , COMPOSITE FEATURES FEATURE TAXONOMIES CONTENTS XIII 3.6 FEATURE VALIDATION 110 3.7 FEATURE MAPPING 115 3.8 FEATURES VERSUS GEOMETRY 117 REVIEW QUESTIONS 120 BIBLIOGRAPHY 121 4 FEATURE CREATION TECHNIQUES 122 4.1 OVERVIEW 122 4.2 INTERACTIVE FEATURE CREATION 124 4.3 AUTOMATIC FEATURE RECOGNITION 125 4.3.1 MACHINING REGION RECOGNITION 126 4.3.2 PRE-DEFINED FEATURE RECOGNITION 127 4.4 DESIGN BY FEATURES 132 4.4.1 PROCEDURAL DESIGN BY FEATURES 133 4.4.2 DECLARATIVE DESIGN BY FEATURES 134 4.5 COMPARISON OF FEATURE CREATION TECHNIQUES 135 4.6 UNIFICATION OF FEATURE CREATION TECHNIQUES 136 REVIEW QUESTIONS 137 BIBLIOGRAPHY 138 PART III APPLICATION OF FEATURES 141 5 FEATURES IN DEISGN 143 5.1 FEATURE-BASED PART CREATION 143 5.2 FEATURE IDENTIFICATION 148 5.2.1 FEATURIZING A PART 150 5.2.2 VALIDATION OF CANDIDATE FEATURE SETS 153 5.2.3 CASE STUDY: AUTOMOTIVE BODY PANEL 154 5.3 DESIGN BY FEATURES 157 5.3.1 PART CREATION BY FEATURES 157 5.3.2 VARIANT DESIGN WITH PART FAMILIES 158 5.4 TOLERANCE SPECIFICATION 161 XIV CONTENTS 5.4.1 REVIEW OF TOLERANCE SPECIFICATIONS 5.4.2 INTEGRATING FEATURES, TOLERANCES, AND GEOMETRY 5.5 DESIGN OF ASSEMBLIES 5.5.1 ASSEMBLY MODELING 5.5.2 ASSEMBLY FEATURES REVIEW QUESTIONS BIBLIOGRAPHY FEATURES IN MANUFACTURING 6.1 MANUFACTURING FEATURES 6.2 ISSUES AND ALTERNATIVE APPROACHES 6.2.1 LEVEL OF ABSTRACTION 6.2.2 LEVEL OF SPECIALIZATION 6.2.3 DIMENSIONALITY 6.2.4 COMPLETENESS OF FEATURE MODEL 6.2.5 FEATURE RELATIONSHIPS 6.2.6 TEMPORAL ORDERING 6.2.7 PRODUCT FAMILIES 6.3 GENERATION OF MANUFACTURING FEATURES 6.3.1 INTERACTIVE FEATURE IDENTIFICATION 6.3.2 DESIGN BY MANUFACTURING FEATURES 6.3.3 DESIGN TO MANUFACTURING FEATURE MAPPING 6.3.4 MANUFACTURING FEATURE RECOGNITION 6.4 GROUP TECHNOLOGY CODING 6.5 FEATURE-BASED PROCESS PLANNING 6.6 FEATURE-BASED ASSEMBLY PLANNING 6.7 FEATURE-BASED INSPECTION PLANNING 6.8 FEATURE-BASED MANUFACTURABILITY EVALUATION 6.9 OTHER MANUFACTURING APPLICATIONS REVIEW QUESTIONS BIBLIOGRAPHY FEATURE MAPPING AND DATA EXCHANGE 7.1 FEATURE MAOOINS 163 164 173 175 178 181 181 187 188 192 192 193 196 197 197 199 199 200 201 201 202 202 204 207 208 213 213 216 217 217 219 219 CONTENTS XV 7.1.1 MAPPING CLASSES 221 7.1.2 MAPPING TECHNIQUES 223 7.2 FEATURE DATA EXCHANGE 231 7.2.1 INTRODUCTION TO STEP 232 7.3 ISO10303-48: FORM FEATURES 234 7.3.1 FORM FEATURE SCHEMA 235 7.3.2 REPRESENTATION SCHEMA 240 7.3.3 FINAL REMARKS 245 7.3.4 CASE STUDY: STEP-PART 48 REPRESENTATION 247 7.4 ISO10303-224: PRODUCT DEFINITION FOR PROCESS PLANNING 248 REVIEW QUESTIONS 254 BIBLIOGRAPHY 254 PART IV DESIGN AND IMPLEMENTATION 257 8 DESIGN-BY-FEATURES TECHNIQUES 259 8.1 ARCHITECTURAL FRAMEWORK 259 8.1.1 REPRESENTATION OF FEATURE DEFINITIONS 261 8.1.2 SUPPORT FOR USER-DEFINED FEATURES 263 8.1.3 TYPES OF LINKAGES WITH A GEOMETRIC MODELING SYSTEM 266 8.2 PROCEDURAL TECHNIQUES 270 8.2.1 DEFINITION BY GENERAL-PURPOSE PROGRAMMING LANGUAGE 271 8.2.2 SPECIAL-PURPOSE FEATURE DEFINITION LANGUAGES 271 8.3 DECLARATIVE TECHNIQUES 275 8.3.1 CONSTRAINT SPECIFICATION 275 8.3.2 CONSTRAINT-BASED FEATURE DEFINITION 280 8.3.3 CONSTRAINT SATISFACTION 282 8.4 FEATURE REFINEMENT 297 8.5 FEATURE RELATIONS 299 8.5.1 HANDLES IN QTC 299 8.5.2 GEOMETRIC TREES IN GEONODE 299 8.6 PART AND PRODUCT FAMILY MODELING 303 8.7 CUTTING AND PASTING FEATURES 306 REVIEW QUESTIONS 311 XVI CONTENTS BIBLIOGRAPHY 312 9 FEATURE RECOGNITION TECHNIQUES 316 9.1 ARCHITECTURAL FRAMEWORK 317 9.1.1 DESIGN 318 9.1.2 ENGINEERING ANALYSIS 319 9.1.3 GROUP TECHNOLOGY CODING 319 9.1.4 MANUFACTURING 320 9.2 RECOGNITION FROM BOUNDARY MODELS 321 9.2.1 GRAPH MATCHING 321 9.2.2 SYNTACTIC RECOGNITION 328 9.2.3 RULE-BASED ALGORITHMS 336 9.2.4 PROCEDURAL FEATURE RECOGNITION 337 9.3 RECOGNITION BY VOLUME DECOMPOSITION ALGORITHMS 337 9.3.1 ALTERNATING SUM OF VOLUMES DECOMPOSITION 338 9.3.2 DELTA VOLUME DECOMPOSITION 339 9.3.3 RECOGNITION OF MULTIPLE FEATURE MODELS 342 9.4 RECOGNITION FROM CSG MODELS 351 9.5 RECOGNITION FROM TWO-DIMENSIONAL DRAWINGS 354 9.6 COMPARISON OF FEATURE RECOGNITION TECHNIQUES 358 9.7 HYBRID SYSTEMS 359 9.7.1 HYBRID METHODS FOR INTERACTING FEATURES 360 9.7.2 REAL-TIME FEATURE RECOGNITION 363 9.8 RESEARCH TRENDS 364 9.8.1 NEURAL NETWORK BASED RECOGNITION 365 9.8.2 DIFFERENTIAL DEPTH FILTER 365 9.8.3 INCREMENTAL RECOGNITION 367 REVIEW QUESTIONS 370 BIBLIOGRAPHY 372 10 IMPLEMENTATION TOOLS 376 10.1 OVERVIEW 376 10.2 TECHNIQUES AND NOTATION ' 377 10.2.1 FRAMES AND OBJECT-ORIENTED PROGRAMMING 378 CONTENTS XVII 10.2.2 INSTANCE FRAMES 380 10.2.3 CLASS FRAMES 381 10.2.4 CLASS HIERARCHY 382 10.2.5 INSTANCE CREATION AND INHERITANCE 383 10.2.6 METHODS 386 10.3 FEATURE DEFINITION AND FEATURE TAXONOMY 389 10.3.1 ABSTRACT FEATURES 389 10.3.2 BASIC FEATURES 391 10.3.3 CONTAINER FEATURES 393 10.3.4 FEATURE INSTANCE HIERARCHY 396 10.4 FEATURE GEOMETRY TOOLS 398 10.4.1 GEOMETRY DEFINITION FRAME 398 10.4.2 GRAPH REPRESENTATION OF GEOMETRY 399 10.4.3 AUXILIARY DEFINITIONS 404 10.4.4 RULES 404 10.4.5 FEATURE ATTRIBUTES 404 10.4.6 FEATURE GEOMETRY DEFINITION 405 10.4.7 EVALUATING PART GEOMETRY 406 10.5 CONSTRAINT TOOLS 408 10.5.1 SKYBLUE 408 10.5.2 ARCHITECTURE OF ICONF 409 10.5.3 CONSTRAINT DEFINITION LANGUAGE 410 10.5.4 CONSTRAINTS IN USE 412 10.5.5 DYNAMIC CONSTRAINT CREATION 415 10.5.6 CASE STUDY 418 10.6 FEATURE RECOGNITION TOOLS 421 10.6.1 BASIC CONCEPTS 421 10.6.2 FEATURE TOPOLOGY CLASSIFICATION 422 10.6.3 PREPROCESSING 423 10.6.4 SEARCHING FOR A BASE FEATURE 423 10.6.5 SEARCHING FOR SINGLE AND CONTAINER FEATURES 425 10.6.6 INTERPRETING FEATURE COMBINATIONS 425 10.6.7 INSTANTIATION OF FEATURE CLASSES 427 10.6.8 INCREMENTAL OPERATION 428 10.7 PROCEDURAL FEATURE RECOGNITION WITH C 431 10.7.1 PREPROCESSING 431 XVIII CONTENTS 10.7.2 INTERPRETED LANGUAGE 433 10.7.3 FEATURE RECOGNITION FUNCTIONS 435 10.7.4 EXAMPLES 438 10.8 PROCEDURAL DESIGN BY FEATURES 440 10.8.1 FEATURE DEFINITION 440 10.8.2 MODEL MANAGEMENT 445 10.9 FEATURE-GEOMETRY PROTOCOL 447 10.9.1 HIGH-LEVEL FUNCTIONS 447 10.9.2 COMMUNICATION MODE 448 10.9.3 SYSTEM ARCHITECTURE 449 10.9.4 ACIS IMPLEMENTATION 451 10.10 USER INTERFACE DESIGN 465 REVIEW QUESTIONS 472 BIBLIOGRAPHY 475 11 FEATURE-BASED PROCESS PLANNING 478 11.1 ARCHITECTURAL FRAMEWORK 479 11.1.1 GOALS OF COMPUTER-AIDED PROCESS PLANNING 479 11.1.2 EARLY PROCESS PLANNING SYSTEMS 482 11.1.3 CURRENT-GENERATION PROCESS PLANNING SYSTEMS 483 11.2 PROCESS PLANNING FEATURES 486 11.2.1 PROCESS PLANNING FEATURE ISSUES 486 11.2.2 EXAMPLES OF PROCESS PLANNING FEATURES 488 11.3 PROCESS MODELS 498 11.3.1 A MODEL FOR MACHINING OPERATIONS 498 11.3.2 MAPPING FEATURES TO PROCESSES BASED ON "DEEP" KNOWLEDGE 500 11.3.3 MAPPING FEATURES TO PROCESSES BASED ON "SHALLOW" KNOWLEDGE 505 11.3.4 PROCESS CAPABILITIES 505 11.3.5 PROCESS CONSTRAINTS 507 11.3.6 PROCESS ECONOMICS 510 11.3.7 PROCESS RESOURCES 510 11.3.8 PROCESS PLAN REPRESENTATION 511 11.4 OPERATION PLANNING 513 11.4.1 OPERATION PLANNING IN SIPS 11.4.2 OPERATION PLANNING IN ROCOST 11.5 SETUP PLANNING 11.5.1 SETUP PLANNING IN HUTCAPP 11.5.2 SETUP PLANNING IN QTC 11.6 FIXTURE PLANNING 11.6.1 FIXTURE PRINCIPLES 11.6.2 FIXTURE PLANNING IN PART 11.6.3 FIXTURE PLANNING IN MCOES 11.6.4 FIXTURE PLANNING IN ROCOST 11.7 NC PROGRAM GENERATION REVIEW QUESTIONS BIBLIOGRAPHY CONTENTS XIX 514 517 521 521 525 528 528 530 532 535 537 541 543 PARTV BEYOND FEATURES 545 12 FUTURE CAD/CAM TECHNOLOGIES 547 12.1 OBJECTIVES 547 12.1.1 DESIGN PROCESS 548 12.2 TOOLS FOR PRELIMINARY DESIGN 550 12.2.1 EXPERT SYSTEMS 550 12.2.2 TOP-DOWN DESIGN 551 12.2.3 FUNCTION-BASED DESIGN 557 12.2.4 BOND GRAPHS 562 12.3 COLLABORATIVE DESIGN TOOLS 565 12.3.1 SYSTEMS BASED ON DESIGN HISTORY 565 12.3.2 CONFIGURATION DESIGN 568 12.4 QUALITATIVE REASONING METHODS 571 12.5 EPILOGUE 572 REVIEW QUESTIONS / 573 BIBLIOGRAPHY 573 XX CONTENTS APPENDIXES 579 APPENDIX A MATHEMATICAL ELEMENTS 581 A.I GRAPH CONCEPTS 581 A. 1.1 DEFINITIONS 581 A. 1.2 REPRESENTATIONS 582 A. 1.3 TERMS AND PROPERTIES 583 A. 1.4 GRAPH ALGORITHMS 586 A.2 SET ALGEBRA 587 A.3 GEOMETRIC TRANSFORMATIONS 588 A.3.1 HOMOGENEOUS COORDINATES 589 A.3.2 COORDINATE TRANSFORMATIONS 589 A.3.3 COMBINATION OF TRANSFORMATIONS 590 REVIEW QUESTIONS 591 BIBLIOGRAPHY 591 APPENDIX B HALF-EDGE DATA STRUCTURE 593 B.I ENTITY TYPES 593 B.2 FACE RELATIONSHIPS 594 B.3 IMPLEMENTATION DETAILS 596 REVIEW QUESTIONS 599 BIBLIOGRAPHY 599 APPENDIX C LISTING OF PROCEDURAL INTERFACE FUNCTIONS 600 C. 1 CREATE AND DELETE FUNCTIONS 600 C.2 EVALUATION FUNCTIONS 602 C.3 GEOMETRIC INQUIRY FUNCTIONS ' 604 BIBLIOGRAPHY 608 INDEX 609
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spelling	Shah, Jami J. Verfasser aut Parametric and feature based CAD CAM concepts, techniques, and applications Jami J. Shah ; Martti Mäntylä New York <<[u.a.]>> Wiley 1995 XX, 619 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier A Wiley-Interscience publication CAD/CAM systems CAD (DE-588)4069794-0 gnd rswk-swf CAD (DE-588)4069794-0 s DE-604 Mäntylä, Martti Verfasser aut http://www.loc.gov/catdir/description/wiley031/95005673.html Publisher description http://www.loc.gov/catdir/toc/onix01/95005673.html Table of Contents HEBIS Datenaustausch Darmstadt application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=016832117&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis
spellingShingle	Shah, Jami J. Mäntylä, Martti Parametric and feature based CAD CAM concepts, techniques, and applications CAD/CAM systems CAD (DE-588)4069794-0 gnd
subject_GND	(DE-588)4069794-0
title	Parametric and feature based CAD CAM concepts, techniques, and applications
title_auth	Parametric and feature based CAD CAM concepts, techniques, and applications
title_exact_search	Parametric and feature based CAD CAM concepts, techniques, and applications
title_exact_search_txtP	Parametric and feature based CAD CAM concepts, techniques, and applications
title_full	Parametric and feature based CAD CAM concepts, techniques, and applications Jami J. Shah ; Martti Mäntylä
title_fullStr	Parametric and feature based CAD CAM concepts, techniques, and applications Jami J. Shah ; Martti Mäntylä
title_full_unstemmed	Parametric and feature based CAD CAM concepts, techniques, and applications Jami J. Shah ; Martti Mäntylä
title_short	Parametric and feature based CAD CAM
title_sort	parametric and feature based cad cam concepts techniques and applications
title_sub	concepts, techniques, and applications
topic	CAD/CAM systems CAD (DE-588)4069794-0 gnd
topic_facet	CAD/CAM systems CAD
url	http://www.loc.gov/catdir/description/wiley031/95005673.html http://www.loc.gov/catdir/toc/onix01/95005673.html http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=016832117&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA
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