MSC Patran Interface To MSC Nastran Preference Guide Volume 1: Structural Analysis

Description

Chapter 1: Overview......Page 9 1.1 Purpose......Page 10 1.2 MSC Nastran Product Information......Page 12 Chapter 2: Building A Model......Page 13 2.1 Introduction to Building a Model......Page 14 Advanced Output Requests, 481......Page 16 1D - Rod - General Section - CONROD, 139......Page 17 Fatigue Parameters Subform, 370......Page 18 1D - Beam - Lumped Section (CBEAM/PBCOMP), 128......Page 19 Adaptive Mesh Post-Processing, 476......Page 20 Define Fatigue Load Sequences, 488......Page 21 Crack (VCCT), 271......Page 22 Initial Conditions......Page 23 Element Properties......Page 24 Materials......Page 25 Elements and Properties......Page 26 Solution Controls......Page 27 2.3 Adaptive (p-Element) Analysis with the MSC Nastran Preference......Page 28 Element Creation......Page 29 Element and p-Formulation Properties......Page 30 Loads and Boundary Conditions......Page 31 Analysis Definition......Page 32 Results Import and Postprocessing......Page 33 Potential Pitfalls......Page 34 Adaptive Analysis of Existing Models......Page 35 2.4 Coordinate Frames......Page 36 Nodes......Page 37 Elements......Page 38 Multi-point Constraints......Page 40 MPC Types......Page 42 Structural......Page 46 Superelements......Page 62 Select Boundary Nodes......Page 65 2.6 Material Library......Page 66 Materials Application Form......Page 67 Material Input Properties Form......Page 69 Material Constitutive Models......Page 70 Linear Elastic......Page 81 Nonlinear Elastic......Page 83 Hyperelastic......Page 84 Elastoplastic......Page 89 Failure......Page 92 Failure 1, Failure 2, Failure 3......Page 93 Creep......Page 96 Hypoelastic......Page 97 User Defined......Page 98 Viscoelastic......Page 99 Stress-Life (SN) and Strain Life (eN), Spot Weld (Top and Bottom Sheet), Seam Weld (Stiff and Flexible)......Page 100 Cohesive......Page 103 Composite......Page 107 Element Properties Form......Page 109 0D - Coupled Point Mass (CONM1)......Page 116 0D - Grounded Scalar Mass (CMASS1)......Page 117 0D - Lumped Point Mass (CONM2)......Page 118 0D - Grounded Scalar Spring (CELAS1/CELAS1D)......Page 119 0D - Grounded Scalar Damper (CDAMP1/CDAMP1D)......Page 120 0D - Grounded Bush (CBUSH/PBUSH)......Page 121 1D - Beam - General Section (CBAR) - Standard Formulation......Page 122 1D - Beam - General Section (CBEAM) - P-Formulation......Page 128 1D - Beam - General Section (CBAR) - Linear/Cubic Closed Section......Page 130 1D - Beam - General Section (CBAR) - Linear-Shear......Page 131 1D - Beam - Curved with General Section (CBEND)......Page 132 1D - Beam - Curved with Pipe Section (CBEND)......Page 134 1D - Beam - Lumped Section (CBEAM/PBCOMP)......Page 136 1D - Beam - Tapered Section (CBEAM) - Standard Formulation......Page 138 1D - Beam - Tapered Section (CBEAM) - P-Formulation......Page 140 1D - Beam - General Section (CBEAM) - Standard Formulation......Page 141 1D - Beam - General Section (CBEAM) - Linear/Cubic Closed Section......Page 143 1D - Beam - General Section (CBEAM) - Linear/Cubic Open Section......Page 144 1D - Beam - General Section (CBEAM) - Linear-Shear......Page 145 1D - Rod - General Section (CROD) - Standard Formulation......Page 146 1D - Rod - General Section - CONROD......Page 147 1D - Rod - Pipe Section (CTUBE)......Page 148 1D - Spring (CELAS1)......Page 149 1D - Damper - Scalar (CDAMP1)......Page 150 1D - Damper - Viscous (CVISC)......Page 151 1D - Gap - Adaptive / Non Adaptive (CGAP)......Page 152 1D - Scalar Mass (CMASS1)......Page 154 1D - PLOTEL......Page 155 1D - Bush (CBUSH)......Page 156 1D- Bush (CBUSH2D/PBUSH2D)......Page 158 1D - Spot Weld Connector (CWELD)......Page 160 1D - Fastener Connector (CFAST)......Page 161 2D - Shell - Thin - Homogeneous - Standard Formulation......Page 164 2D - Shell - Homogeneous - Revised Formulation......Page 167 2D - Shell - Thin - Homogeneous - P-Formulation......Page 169 2D - Shell - Thin - Homogeneous - Linear Discrete Kirchhoff......Page 171 2D - Shell - Thin - Laminate Plate- Standard Formulation......Page 173 2D - Shell - Thin - Laminate - Revised Formulation......Page 175 2D - Shell - Thin - Equivalent Section - Standard Formulation......Page 177 2D - Shell - Thin - Equivalent Section - Revised Formulation......Page 179 2D - Shell - Thin - Equivalent Section - P-Formulation......Page 181 2D - Shell - Thick - Standard Formulation......Page 183 2D - Shell - Thick - Reduced Integration......Page 185 2D - Shell - Field Point Mesh......Page 187 2D - Bending Panel - Standard Formulation......Page 188 2D - Bending Panel - Revised Formulation......Page 190 2D - Bending Panel - P-Formulation......Page 192 2D - 2D Solid - Plane Strain - Standard Formulation......Page 194 2D - 2D Solid - Plane Strain - Reduced Integration......Page 196 2D - 2D Solid - Plane Strain - Revised Formulation......Page 197 2D - 2D Solid - Plane Strain - P-Formulation......Page 198 2D - 2D Solid - Plane Strain - Hyperelastic Formulation......Page 200 2D - Plane Strain - Laminated Composite......Page 201 2D - 2D Solid - Plane Strain - Incompressible......Page 202 2D - 2D Solid - Plane Strain - Interface......Page 203 2D - 2D Solid - Plane Stress - Standard Formulation......Page 204 2D - 2D Solid - Plane Stress- Reduced Integration......Page 206 2D - 2D Solid - Plane Stress - Interface......Page 207 2D - 2D Solid - Axisymmetric - Standard Formulation......Page 208 2D - 2D Solid - Axisymmetric - Reduced Integration......Page 210 2D - 2D Solid - Axisymmetric - Twist......Page 211 2D - 2D Solid - Axisymmetric - Hyperelastic Formulation......Page 212 2D - 2D Solid - Axisymmetric - Laminated Composite......Page 213 2D - 2D Solid - Axisymmetric - PLPLANE......Page 214 2D - 2D Solid - Axisymmetric - Incompressible......Page 215 2D - 2D Solid - Axisymmetric - Interface......Page 216 2D - 2D Solid - Acoustic Infinite......Page 217 2D - Membrane - Standard Formulation......Page 218 2D - Membrane - Revised Formulation......Page 220 2D - Membrane - P-Formulation......Page 221 2D - Shear Panel......Page 223 3D - Solid - Homogeneous - Standard Formulation......Page 225 3D - Solid - Homogeneous - Reduced Integration......Page 227 3D - Solid - Homogeneous - P-Formulation......Page 228 3D - Solid - Homogeneous - Hyperelastic......Page 230 3D - Solid Shell - Homogeneous - Standard Formulation......Page 231 3D - Solid - Homogeneous - Incompressible......Page 232 3D - Solid - Laminate......Page 233 3D - Solid - Interface......Page 234 3D - Body Pair- Geometric......Page 235 3D - Body Pair- Physical......Page 237 Cross Section Definition......Page 238 Create Action......Page 239 Supplied Functions......Page 241 Cross Section Orientation......Page 242 Stiffened Cylinder Example......Page 246 Loads & Boundary Conditions Form......Page 248 Static......Page 252 Time Dependent......Page 255 Displacement / Velocty / Acceleration......Page 256 Force......Page 259 Pressure......Page 260 Temperature......Page 262 Inertial Load......Page 265 Initial Velocity......Page 266 Distributed Load......Page 267 CID Distributed Load......Page 268 Contact......Page 269 Total Load......Page 278 Description......Page 279 2.10 Load Cases......Page 283 2.11 Defining Contact Regions......Page 284 Contact......Page 286 2.12 Rotor Dynamics......Page 288 Rotor Dynamics Form......Page 289 Spin Profile Form......Page 292 Spin History Form......Page 293 Unbalance Form......Page 294 Unbalance Properties Form......Page 296 Chapter 3: Running an Analysis......Page 299 3.1 Review of the Analysis Form......Page 300 Analysis Form......Page 301 Interactive......Page 303 Overview of Analysis Job Definition and Submittal......Page 304 3.2 Translation Parameters......Page 306 This option is OFF by default. This option can be turned ON to write continuation markers for Bulk Data entries.......Page 307 Prompts you for the filename of the include file.......Page 308 Numbering Options......Page 309 Select File......Page 312 3.3 Solution Types......Page 313 Selects Solution Sequence 700.......Page 314 Brings up a solution-type-dependent subordinate form that allows you to specify parameters which apply to the complete solution.......Page 315 600......Page 316 700......Page 317 3.4 Direct Text Input......Page 318 Linear Static......Page 320 Indicates the node ID that is to be used for the Grid Point Weight Generator. This is the GRDPNT parameter.......Page 322 Nonlinear Static......Page 323 On the Results Output Format form you choose which output formats you want to use with your solution type. For more details, please see Results Output Format, 405.......Page 325 2......Page 326 Normal Modes......Page 327 48......Page 328 On the Results Output Format form you choose which output formats you want to use with your solution type. For more details, please see Results Output Format, 405.......Page 329 Defines the degree-of-freedom component at the Normalization Point to be used. This can only be selected if Normalization Method is set to Point. This parameter cannot be specified if Extraction Method is set to Lanczos. This is the C field on the EI.........Page 331 Buckling......Page 334 Defines the conversion factor between weight and mass measures. This defines the setting of the WTMASS parameter.......Page 335 On the Results Output Format form you choose which output formats you want to use with your solution type. For more details, please see Results Output Format, 405.......Page 336 Indicates what type of eigenvalue normalization is to be done. This parameter can take one of two settings: Maximum or Point. This parameter cannot be specified if Extraction Method is set to Lanczos. This is the NORM field on the EIGB entry.......Page 338 Defines the degree-of-freedom component at the Normalization Point to be used. This, too, can only be selected if Normalization Method is set to Point. This parameter cannot be specified if Extraction Method is set to Lanczos. This is the C field on .........Page 339 Complex Eigenvalue......Page 340 Defines the conversion factor between weight and mass measures. This defines the setting of the WTMASS parameter.......Page 341 On the Results Output Format form you choose which output formats you want to use with your solution type. For more details, please see Results Output Format, 405.......Page 342 Indicates what type of eigenvalue normalization is to be done. This parameter can take one of two settings: Maximum or Point. This is the NORM field on the EIGC entry.......Page 344 Defines the degree-of-freedom component at the Normalization Point to be used. This can only be selected if Extraction Method is set to Inverse Power or Determinate. This is the C field on the EIGC Bulk Data entry.......Page 345 Frequency Response......Page 346 Limits the amount of CPU time expressed in CPU minutes that can be used by this run. This is used to prevent runaway jobs. This defines the setting of the TIME Executive Control statement.......Page 347 On the Results Output Format form you choose which output formats you want to use with your solution type. For more details, please see Results Output Format, 405.......Page 348 Transient Response......Page 349 Limits the size of the MSC Nastran print file that will be generated. This defines the setting of the MAXLINES Case Control command.......Page 350 On the Results Output Format form you choose which output formats you want to use with your solution type. For more details, please see Results Output Format, 405.......Page 351 Nonlinear Transient......Page 352 Implicit Nonlinear......Page 354 Specifies the solver to be used in numerically inverting the system matrix of linear equilibrium equations.......Page 356 Contact Parameters Subform......Page 358 Restart Parameters Subform......Page 369 Advanced Job Control Subform (SOL 600)......Page 371 Domain Decomposition is used to partition the model into seperate parts (domains) for parallel processing. The Method used to do this is named Domain Decomposition Method (DDM). This form designates that domain decomposition be done manually, semi-au.........Page 372 Click Create to create Domain Information spreadsheet rows. After doing this the number of rows will equal the value of Number of Domains in the form. If Decomposition Method is set to Manual, the previously created group names will be selectable in .........Page 374 User Defined Services......Page 375 MSC_SDK_PATH and User Source File fields appear on the simple form and show the current settings of the variables, whether they are defined or not. If the variables are defined then the textboxes show the (the actual settings of the variables).........Page 376 Optional input data (integer, real, characters) required for a user subroutine. Clicking on the cell will open a spreadsheet where you can enter the data.......Page 377 Fatigue Parameters Subform......Page 378 DDAM......Page 386 DDAM in Patran......Page 387 Indicates that MSC Nastran will define grid point normals for a Faceted Shell Surface based on the Tolerance Angle. This data appears on a PARAM, SNORM entry.......Page 389 On the Results Output Format form you choose which output formats you want to use with your solution type. For more details, please see Results Output Format, 405.......Page 390 Limits the amount of CPU time expressed in CPU minutes that can be used by this run. This is used to prevent runaway jobs. This defines the setting of the TIME Executive Control statement.......Page 391 Sol700 Parameters Subform......Page 392 .......Page 393 Hourglass Setting Subform......Page 394 .......Page 395 Merge Rigid Material Subform......Page 396 .......Page 397 Dynamic Relaxation for Restart Subform......Page 398 Click the checkbox to specify that convergence control is to be automatic using the Papadrakakis method.......Page 399 Damping Per Property Subform......Page 400 This subordinate form appears when Rigid Body Switch and Merge button is selected on the Sol700 Parameters and Extra Data form of either Explicit Nonlinear or other structural Solution Type where Sol700 is available such as:......Page 401 .......Page 402 Define Set of Parts to be Switched Subform......Page 404 Define Inertial Properties of Rigid Body Subform......Page 406 Eulerian Parameters Subform......Page 407 This subordinate form appears when SPH Control Parameters (SPH refers to smooth “particle hydrodynamics”) button is selected on the Sol700 Parameters and Extra Data form of either Explicit Nonlinear or other structural Solution Type where Sol700 .........Page 410 .......Page 411 Results Output Format......Page 413 ADAMS Preparation......Page 415 3.6 Select Superelements......Page 417 3.7 Subcases......Page 419 Deleting Subcases......Page 420 Editing Subcases......Page 421 Linear Static Subcase Parameters......Page 422 Nonlinear Static Subcase Parameters......Page 424 Arc-Length Method Parameters......Page 426 Nonlinear Transient Subcase Parameters......Page 427 Normal Modes Subcase Parameters......Page 429 Complex Eigenvalue Subcase Parameters......Page 431 Transient Response Subcase Parameters......Page 433 Frequency Response Subcase Parameters......Page 436 Implicit Nonlinear Subcase Parameters......Page 443 Static Subcase Parameters for Implicit Nonlinear Solution Type......Page 444 Implicit Nonlinear Buckling Subcase Parameters......Page 445 Implicit Nonlinear Transient Dynamic Subcase Parameters......Page 446 Implicit Nonlinear Creep Subcase Parameters......Page 448 Implicit Nonlinear Body Approach Subcase Parameters......Page 449 Implicit Nonlinear Complex Eigenvalue Subcase Parameters......Page 450 Load Increment Parameters......Page 451 Iteration Parameters......Page 459 Contact Table......Page 464 Advanced Parameters Subform......Page 467 Contact Boundary Subform......Page 470 Defines groups of elements to be active or deactive for the subcase.......Page 471 Defines parameter values for modeling break squeal. (SOL 400 only).......Page 472 Solvers/Options......Page 473 DDAM Subcase Parameters......Page 476 Explicit Nonlinear Subcase Parameters......Page 478 Contact Table......Page 482 Additional Contact Data......Page 483 Additional Information......Page 484 3.9 Output Requests......Page 486 Basic Output Requests......Page 487 Advanced Output Requests......Page 489 Requests nodal accelerations.......Page 490 Requests the form and type of nonlinear element stress output.......Page 491 Edit Output Requests Form......Page 499 or_value......Page 501 x......Page 502 25......Page 503 Subcases Direct Text Input......Page 504 SOL 600 Output Requests......Page 505 DDAM Output Requests......Page 511 Mode by Mode Output......Page 512 3.10 Select Explicit MPCs.........Page 516 CONROD, PBAR, PBARL, PBCOMP, PBEAM, PBEAML, PBEND, PCOMP, PCONEAX. PRAC2D, PROD, PSHEAR, PSHELL, PTUBE......Page 517 3.12 Select NSM Properties.........Page 522 3.13 Subcase Select......Page 523 Select Steps for New Subcases (Step Creation)......Page 525 Define Fatigue Load Sequences......Page 527 Fatigue Load Sequences for time domain SOLs 101, 103, & 111......Page 529 Fatigue Load Sequences for SOLs 108 & 111(frequency response)......Page 531 3.14 Restart Parameters......Page 539 3.15 Optimize......Page 545 3.16 Toptomize......Page 547 Objectives & Constraints......Page 549 Optimization Control......Page 550 Design Domain......Page 553 Postprocessing......Page 557 Scenario 2......Page 558 Miscellaneous......Page 559 Analysis Form......Page 560 Select Modal Results .DBALL......Page 561 Loading Form......Page 563 Create a Field Form......Page 565 Output Selection Form......Page 566 Define Frequencies Form......Page 567 Chapter 4: Read Results......Page 569 4.1 Accessing Results......Page 570 Output2 Formats......Page 571 MASTER Formats......Page 572 3dplot Formats......Page 574 OUTPUT2......Page 575 Defining Translation Parameters for DDAM (SOL 187)......Page 576 XDB and HDF5......Page 577 MASTER......Page 578 T16/T19......Page 581 Results......Page 582 Global Variables......Page 588 XY Plots......Page 589 Model Data......Page 590 4.3 Supported T16/T19 Results Quantities......Page 591 Nodal Results......Page 596 Elemental Results......Page 603 4.5 Supported 3dplot Results Quantities......Page 623 4.6 Supported HDF5 Result Quantities......Page 625 Chapter 5: Read Input File......Page 627 5.1 Review of Read Input File Form......Page 628 Read Input File Form......Page 629 Entity Selection Form......Page 631 Define Offsets Form......Page 634 Summary Data Form......Page 636 Reject Card Form......Page 638 Coordinate Systems......Page 639 Referential Integrity......Page 640 Elements and Element Properties......Page 641 BAROR and BEAMOR Definitions......Page 644 Set Name Extensions......Page 645 Materials......Page 646 Load Sets......Page 647 TABLES......Page 649 Fatigue Related Entries......Page 650 Conflict Resolution for Entities Identified by Names......Page 651 Chapter 6: Delete......Page 653 6.1 Review of Delete Form......Page 654 6.2 Deleting an MSC Nastran Job......Page 655 Chapter 7: Files......Page 657 7.1 Files......Page 658 Chapter 8: Errors/Warnings......Page 661 8.1 Errors/Warnings......Page 662 Ap. A: Preference Configuration and Implementation......Page 663 1.1 Software Components in Patran MSC Nastran......Page 664 1.2 Patran MSC Nastran Preference Components......Page 665 1.3 Configuring the Patran MSC Nastran Execute File......Page 668 Index......Page 669