Advances in Engineering Software

Introduction......Page 1
Methodology-an overview......Page 2
Finite element model of the thin part......Page 3
Material removal simulation......Page 4
Model transformation strategies......Page 5
System implementation......Page 9
Conclusions......Page 10
References......Page 11
Introduction......Page 12
Numerical examples and gem formulation......Page 13
Results and discussion......Page 18
References......Page 20
Introduction......Page 21
Related work......Page 24
An algorithm for generating self-avoiding walks......Page 25
Quality measure of SAWs......Page 27
Computing mesh intersections......Page 28
Experiment results......Page 30
References......Page 32
Introduction......Page 34
System equations of motion......Page 35
Class definition......Page 36
Numerical analysis......Page 37
Application......Page 39
Conclusion......Page 41
References......Page 42
Definition of the n Gaussian JPMFs......Page 43
Evaluation of the n Gaussian JPMFs parameters......Page 44
Numerical application and results......Page 45
Conclusions......Page 46
References......Page 47
Introduction and background to work......Page 48
Methodology......Page 50
Concept map......Page 52
Informal rules for constructability assessment......Page 55
Examples of informal constructability rules for portal frame design......Page 56
A framework for distributed constructability knowledge acquisition and management......Page 57
Conclusions and further work......Page 58
References......Page 59
Hydro-geotechnical conditions......Page 61
‘Grand casino’: back-analysis on a similar case......Page 63
Finite element model characteristics......Page 64
Reference case results......Page 65
Conclusion......Page 68
References......Page 70
Introduction......Page 71
A framework for an automated bridge imaging inspection system......Page 72
Problem definition......Page 73
Relational data modeling......Page 75
Computer modeling......Page 76
References......Page 78
Introduction......Page 79
Parallelization of the optimization procedure......Page 80
Load scheduling scheme......Page 81
Components of the environment......Page 82
Object-oriented design......Page 83
Implementation......Page 84
An numerical example......Page 85
References......Page 86
Introduction......Page 87
Formulation of a homogenization problem on a periodic cell of a geo-composite......Page 89
Derivation of finite element equation system......Page 91
Algorithm of numerical evaluation of tangent stiffness of a composite......Page 92
Specialized finite elements......Page 93
Finite element models of the geo-composite in two modeling options......Page 95
Initial elastic stiffness of the geo-composite......Page 96
Simulation of strain controlled test......Page 97
Stresses and deformation in the micro-structure......Page 98
Conclusions......Page 99
References......Page 100
The basic components of the environment......Page 101
Hierarchical rule-based expert system......Page 102
Multimodal interfaces......Page 104
Appendix A......Page 106
Appendix B......Page 107
References......Page 109
Introduction......Page 110
Unconstrained optimization algorithms in NN training......Page 111
The adaptive sigmoid activation function......Page 112
The basic idea of adaptation......Page 116
Rank-deficiency......Page 117
Hybrid ES-NN methodology......Page 118
Numerical tests......Page 119
Sizing optimization test examples......Page 120
Shape optimization test example......Page 123
References......Page 126
Introduction......Page 127
Interfacing C libraries from Ch space......Page 128
Program in Ch space......Page 129
Building dynamically loaded library......Page 130
Example 1......Page 133
Example 3......Page 134
References......Page 136
science2fd7.pdf......Page 137
Component-oriented software development......Page 138
Component-oriented technologies......Page 140
Differences between object-oriented and component-oriented software......Page 141
Object model......Page 142
Example usage......Page 144
Performance......Page 146
Conclusion......Page 148
References......Page 149
Introduction......Page 150
Organization of COMPARE......Page 151
Analysis module......Page 152
Sensitivity module......Page 153
Optimization module......Page 154
Experimental data processing: the database manager......Page 155
Project file......Page 157
The COMPARE graphical user interface in C++......Page 158
Main COMPARE interface window......Page 160
References......Page 164
Introduction......Page 166
Hierarchy of classes......Page 168
Refinement algorithm......Page 169
Algorithm implementation......Page 171
References......Page 175
Presentation of the software......Page 176
Task definition......Page 177
Sampling methods......Page 178
Statistical post processing......Page 180
A model problem......Page 183
A rear frame crash......Page 185
Conclusion......Page 187
References......Page 188
Reduction of computation time......Page 189
Simulation model......Page 191
Modeling of damping......Page 193
Verification of the model......Page 194
Local analysis......Page 196
Hertz contact stress......Page 197
Concluding remarks......Page 199
References......Page 200
science392f.pdf......Page 201
Introduction......Page 206
Related work......Page 207
Rationale for experiment management......Page 208
Client layer......Page 209
Server layer......Page 210
Scenario......Page 211
Acknowledgements......Page 213
References......Page 214
Introduction......Page 215
Relocation transparency......Page 216
The migration model......Page 217
Migration example......Page 218
References......Page 219
Introduction......Page 220
Equations of motion for multibody systems......Page 221
Resolution of multibody systems equations......Page 222
Object-oriented concepts......Page 224
Description of the basic classes......Page 225
Description of the class Domain......Page 228
Example 2: winding of an embedded beam......Page 229
Example 3: three-bar mechanism......Page 231
Conclusions......Page 232
References......Page 233
science4a72.pdf......Page 235
Astronomical bases of calendars......Page 236
The Khayyami calendar......Page 237
Description of algorithms......Page 239
Conclusion......Page 240
References......Page 241
Introduction......Page 242
Structure topology optimization problem......Page 243
Shape derivative of material interfaces......Page 245
Nonlinear velocity mapping algorithm......Page 246
Return mapping algorithm......Page 247
Summary of the presented algorithm......Page 248
Numerical examples......Page 249
A topological derivative and level set algorithm for topological optimization......Page 256
Topological derivative with multi-material structures......Page 257
Topological derivative and level set algorithm for topological optimization......Page 261
Numerical examples......Page 262
References......Page 267
science5e02.pdf......Page 269
Erratum to ‘‘Estimation of consolidation settlement caused by groundwater drawdown using artificial neural networks’’ [Advances......Page 270
Introduction......Page 272
Topology optimisation method......Page 273
Topology optimisation of a rear suspension subframe......Page 275
References......Page 279
Introduction......Page 281
Improvements of the standard binary genetic algorithm......Page 282
The differential evolution algorithmic scheme......Page 283
Test computations......Page 284
Testing and results......Page 285
The SADE algorithm extended by the CERAF method......Page 286
Conclusions......Page 287
List of test functions......Page 288
References......Page 289
Intelligent systems in schools......Page 291
Inteligent tuturing system ES-STATFAG......Page 292
STATFAG-CAD......Page 293
Example of use......Page 298
References......Page 300
science6a54.pdf......Page 302
Object-oriented distributed computing......Page 303
Object-oriented finite element analysis module......Page 304
CORBA implementation of finite element analysis......Page 307
Multi-client single-server computing......Page 308
Parallel finite element computing using Java threads in a CORBA environment......Page 309
Mechanism used in distribution and parallelism......Page 310
Performance studies......Page 313
Discussion......Page 314
References......Page 315
Introduction......Page 316
The computer implementation......Page 317
The OpenMP API......Page 318
The ScaLAPACK library......Page 319
Parallel results summary......Page 320
Conclusions......Page 322
References......Page 323
Introduction......Page 324
General design of a multi agent system......Page 325
Generic reconfigurable computing environment......Page 326
Overall software/hardware agent environment......Page 327
Hardware agent models......Page 328
Design of multi hardware agent systems to implement finite state machines......Page 329
Use of hardware agents to implement a general sequence detector......Page 330
Design of a multi hardware agent system to implement a signature analyzer......Page 331
References......Page 335
Introduction......Page 337
Design of control system in modal space......Page 338
Preference-based optimization model......Page 339
Integrated design by genetic algorithm......Page 340
Example structure......Page 341
Numerical results......Page 342
Acknowledgements......Page 345
References......Page 346
Introduction......Page 347
2D-modelling description and problem results......Page 348
Results......Page 352
Butt-joint three-dimensional modelling......Page 353
Three-dimensional analysis result......Page 355
References......Page 356
Introduction......Page 357
ANFIS controller for the SRM......Page 358
Hardware......Page 360
Software......Page 362
Experimental results......Page 363
References......Page 365
Introduction......Page 366
Database server with object-relational mapping......Page 367
Administration......Page 368
Classes describing experiments......Page 369
Classes describing material components......Page 370
Classes defining idealizations......Page 371
Process model......Page 372
References......Page 375
Introduction......Page 376
Extensible object-relational database technology......Page 377
Structural dynamic analysis using component mode synthesis......Page 378
Database technology for component mode synthesis......Page 379
Matrix representation and operations......Page 380
Data integration......Page 383
References......Page 385
Introduction......Page 387
Hierarchical multi-agent system architecture......Page 388
The task-oriented collaborative design process model......Page 390
The structure of a design agent......Page 391
The design knowledge......Page 392
Knowledge update......Page 394
A collaborative design example......Page 395
References......Page 396
Introduction......Page 397
Fundamental fuzzy concepts......Page 398
Collaborative decision-making steps......Page 399
Development environment......Page 403
System organization......Page 404
User interface design......Page 408
System operation example......Page 409
Discussion and conclusion......Page 410
References......Page 411
Introduction......Page 412
Positioning live loads on bridge......Page 413
Neural networks......Page 414
Network configurations for single column piers......Page 415
Network configurations for multiple column piers......Page 416
References......Page 418
Introduction......Page 420
System architecture......Page 421
System operations and development environment......Page 422
PRE Module development......Page 423
SOLVER Module......Page 424
POST Module......Page 425
Application......Page 426
References......Page 428
science8506.pdf......Page 430
Usage of virtual prototypes......Page 431
Background to the system......Page 432
System overview......Page 433
Conceptual model used in the system......Page 434
Development of the system......Page 435
Mesh extraction......Page 436
Calculation using the data stored in the database......Page 437
References......Page 438
Introduction......Page 440
Cluster validity index......Page 441
Limiting behavior......Page 442
&f;S&m.inf;VI&/m.inf;&/f; behavior as &f;m→1&super;&?show +;+&/super;&/f;......Page 443
&f;S&m.inf;VI&/m.inf;&/f; behavior as &f;m→∞&/f;......Page 444
Numerical examples......Page 445
References......Page 448
Introduction......Page 449
‘Panagiotopoulos’ inequality formulation of interface problems with nonmonotone contact and friction laws......Page 450
Algorithmic approximation......Page 451
Constrained optimization with neural networks......Page 453
Numerical application......Page 454
References......Page 457
Introduction......Page 459
Literature review......Page 460
Fuzzy optimization......Page 461
Fuzzy linear programming with fuzzy parameters......Page 462
Formulation of the problem......Page 463
Discussions......Page 464
References......Page 465
Creativity in design......Page 466
Creative idea emerges in a special environment......Page 467
Related works......Page 468
Tree-based genetic algorithm......Page 469
A reading lamp figuration design example......Page 472
Acknowledgements......Page 475
References......Page 476
Introduction......Page 477
The Hellinger-Reissner principle......Page 479
Stability and solvability......Page 480
Constitutive relations......Page 481
Stiffness matrix and vector of nodal forces......Page 482
Numerical illustrations and discussion......Page 483
Solvability tests......Page 484
Sandwich beam......Page 485
Plate subjected to a temperature field......Page 487
Piezoelectrically actuated beam......Page 488
Two-material wedge......Page 491
Concluding remarks......Page 492
References......Page 493
TRIZ-a tool for solving conflict problems......Page 494
Eco-innovative design process......Page 495
Example: ‘dual-layer tread tire’......Page 496
Framework of ‘Eco-Design Tool’......Page 498
Search for eco-design target......Page 499
TRIZ inventive principle exploration......Page 500
TRIZ inventive principle interpretation......Page 501
Practical design case: correction tape device......Page 503
Conclusions......Page 506
References......Page 507
Introduction......Page 508
Mathematical model of the problem of the electrical current dissipation into a soil......Page 509
The problem of transferred earth potentials......Page 510
Analysis of transferred earth potentials......Page 511
Example of transferred potential analysis......Page 512
Acknowledgements......Page 513
References......Page 514
Intelligent Flight Support System (IFSS) Evaluation Questionnaire......Page 515
Architecture......Page 517
Evaluation......Page 522
Acknowledgements......Page 523
A mathematical summary of the analytic hierarchy process......Page 526
References......Page 527
Introduction......Page 528
Related work......Page 529
Version binding......Page 530
Configuration management requirements......Page 532
Proposed configuration management model......Page 533
The configuration object and version sharing......Page 534
Configurations as versions......Page 536
Configuration operations......Page 538
Integrity validation model......Page 539
Configuration versions and CVOs......Page 541
Conclusion......Page 542
References......Page 543
Introduction......Page 545
Traditional penalty function strategy......Page 546
Self-organizing adaptive penalty strategy (SOAPS)......Page 547
The second generation of self-organizing adaptive penalty strategy (SOAPS-II)......Page 548
Illustrative examples......Page 550
Ten variable numerical problem-N1......Page 551
Six variable numerical problem-N2......Page 552
Discrete ten-bar truss problem......Page 553
References......Page 554
Introduction......Page 556
The case for row-wise matrix storage......Page 557
Profile and bandwidth compression using transposed matrices......Page 558
Numerical results for unsymmetric matrices from chemical engineering applications......Page 559
References......Page 561
Hydroinformatic environment......Page 563
Conditioned mesh refinement......Page 565
POM-UMH model......Page 572
Water quality models: PROCESSES, RMA4-UMQ and POM-UMQ......Page 575
GIS model results and data integration......Page 578
References......Page 580
Introduction......Page 581
Homogenization of the shadow mask......Page 582
Analysis procedure......Page 583
Thermal deformation analysis......Page 584
Beam landing shifts calculation......Page 586
References......Page 587
Introduction......Page 588
Intelligent training environment architecture......Page 589
Natural Language Interface......Page 590
Hierarchical process knowledge......Page 593
Interface with the humanoid display engine......Page 594
Virtual environment engine......Page 595
Multimodal interfaces......Page 596
Application: wind tunnel training simulator......Page 597
Virtual wind tunnel model......Page 598
Training......Page 601
Rules-attributes descriptions......Page 603
Hierarchical process information attributes......Page 605
References......Page 606
scienceaef8.pdf......Page 607
Introduction......Page 609
Geometrical description......Page 610
Cartesian and natural strains......Page 611
Natural modes and relations to nodal displacements......Page 612
Power of dissipation for the TRIC element......Page 613
Formulation and outline of the solution strategy......Page 614
Sequential limit analysis......Page 615
Simply supported plate......Page 616
Square tube......Page 617
Conclusions......Page 618
References......Page 619
Introduction......Page 620
Problem statement and governing equations......Page 621
The method of solution......Page 622
Numerical integration procedure......Page 623
Results and discussion......Page 624
Conclusion......Page 630
References......Page 632
Introduction......Page 633
Evaluation of temporal integrals in the SGBEM......Page 634
Analytical evaluation of the spatial integrals......Page 635
Evaluation of Type 2 integrals......Page 636
A special scheme for Gaussian integration......Page 637
Numerical examples......Page 638
A plane strip under a Heaviside type loading......Page 639
References......Page 640
Introduction......Page 642
Finite element models for 3D tire analysis......Page 643
Generation of 3D tire meshes considering tread blocks......Page 644
Body mesh generation and tying of tread and body meshes......Page 645
Numerical experiments......Page 646
Footprint and contact pressure distribution......Page 647
References......Page 650
Introduction......Page 651
Hierarchical domain decomposition method......Page 652
Module-based parallel finite element analysis system......Page 653
Media-independent document and I/O functions (large-scale data handling layer)......Page 654
I/O data for FEM (FEM Layers)......Page 655
 for hierarchically domain decomposition method......Page 656
Use of ADVENTURE_IO......Page 657
References......Page 660
Notations and strong formulation......Page 662
Continuous formulation......Page 663
First method: D-PANA algorithm......Page 664
The numerical example: a classical benchmark......Page 665
Remarks on the algorithms behaviour......Page 666
References......Page 667
Alignment methodology......Page 668
Loading conditions......Page 669
Shaft projection and offsetting......Page 670
Shaft deflection......Page 674
Results and discussion......Page 675
Concluding remarks......Page 676
References......Page 681
Introduction......Page 682
Meshing strategies: structured and unstructured......Page 683
Multi-block finite volume scheme......Page 684
Adaptation of geometric pre-processor for implementation of multi-block strategy......Page 686
Why multi-block strategy for microfluidics type applications?......Page 687
Flow and heat transfer in a 3D mixer......Page 688
Conclusions and future work......Page 689
References......Page 690
scienced54c.pdf......Page 691
Determination of the Darcy-Weisbach friction factor......Page 692
Branching pipes problem......Page 694
Solution of the system of nonlinear equations......Page 695
Appendix A......Page 696
Appendix B......Page 697
References......Page 698
Introduction......Page 699
Calculation cycle......Page 700
Relative displacements between contacting blocks......Page 701
Equilibrium equations......Page 702
Sliding of rock blocks along a slope......Page 703
References......Page 704
Introduction......Page 706
Object-oriented programming in C++......Page 707
Numerical solution......Page 708
Windows utilities and functionalities of FER/Mech......Page 709
Case studies......Page 712
References......Page 713
sciencede3a.pdf......Page 714
Introduction......Page 715
Graph based evolutionary algorithms......Page 716
Real-time estimate of the final fitness and error bounds......Page 717
The stove model......Page 718
The modified GBEA algorithm......Page 722
Results......Page 723
References......Page 725
Introduction......Page 726
Mesh modeling......Page 727
Acknowledgements......Page 728
Further Reading......Page 729
Introduction......Page 738
Initial solution on the base grid &f;Ω&m.sup;1&/m.sup;&/f; and patches Ω&super;2&/super;......Page 739
Arrays of fibres......Page 740
Hexagonal array of fibres......Page 742
Local multi-grid versus conventional grids......Page 743
Acknowledgements......Page 745
References......Page 746
Introduction......Page 747
The blending problem......Page 748
Edit distance and reference migration......Page 749
Guide based design......Page 750
Master-slave parallelism......Page 751
Results......Page 752
References......Page 754
Introduction......Page 756
Definitions in the virtual boundary model......Page 758
Comparison of methods......Page 759
Creation and solution of physical buffer model......Page 760
Verification of the model......Page 761
Comparison of deflection results......Page 762
Comparison of stress results......Page 765
Comparison of computation time and space......Page 767
Analysis of objective model......Page 768
Analysis and optimization of objective model......Page 769
References......Page 770
Introduction......Page 771
The theory of two-dimensional HT FEM......Page 772
The modified isoparametric mapping fill method......Page 773
Flow chart of the modified isoparametric mapping fill algorithm for HT FEM......Page 775
Conclusions and discussion......Page 776
References......Page 777
sciencefbe9.pdf......Page 778
Introduction......Page 779
Input interface......Page 780
Server side operations......Page 781
Input interface......Page 782
Output interface......Page 785
Report generator......Page 786
Web-based versus standalone platforms......Page 787
The finite element code......Page 788
References......Page 789
Introduction......Page 790
Modelling of meshing software......Page 791
The modular structure......Page 792
A simple 2D triangular mesh data structure......Page 793
Specifications of mesh generation algorithms......Page 796
Extendability and scalability......Page 800
Conclusions......Page 802
References......Page 804
Introduction......Page 805
Problem description......Page 806
The proposed method......Page 807
Activity planning constraints......Page 808
Discussion......Page 809
An application example......Page 810
Activity planning constraints......Page 811
Optimum project crashing......Page 812
Conclusions......Page 813
References......Page 814