Nastran punch file format. Output is controlled by the I/O Option ACCELERATION.

Nastran punch file format. Multiple FORMAT commands are allowed. Acceleration results from frequency response, acoustic, transient response, and multibody dynamics analyses. For Fluid velocity output, the Real and Imaginary parts are calculated as: Dec 5, 2015 · Project description parser of NASTRAN punch files. GPFORCE (FBD)) can be used for FBD in HyperView. To read, open the file in Nastran reader. File Contents Jun 18, 2017 · Hello, I am working on my bachelorthesis right now. The files generated are grouped into categories depending on their corresponding functions and listed below. Apr 23, 2009 · Hello , I have a normal modes analysis result in optistruct interface, but now i need the result file translate into Nastran punch file (*. h5 binary results file. pch) and converts its scary format into Comma-Separated Values (*. These files are designed specifically for this usage (i. , this publication, or parts thereof, may not be reproduced in any form, by any method, for any purpose. pch file) OPT OptiStruct ASCII format (multiple files) PAT The order above reflects the contents of the OP2 file, but post-processors such as HyperView may display results in a different manner. Think I am not the only one, so there should be something available. A Nastran file has simulation input data in a format. Click the file browser icon, , and select the Nastran punch file you want to load. The first section is the “Executive Control Deck” and contains a “SOL 101” or “SOL 103” or “SOL STATIC” depending on the solution type. M. pch). For 2D elements, results are printed at the center of the element, followed by results at each grid when corner stresses are requested. Choose the X Type, Y Type, Y Request, and Y Component. format=OUTPUT2 can also be used to request results to be output in the Nastran output2 format (. Basically, it converts this: For the keywords HM, H3D, HV, ASCII, OPTI, OS, NASTRAN, PUNCH, OP2, OUT2, OUTPUT2, PATRAN and APATRAN, the information provided by the OUTPUT I/O Option Entry takes precedence over information provided on the older FORMAT and RESULTS I/O Option Entries. The current support of HDF5 output format is: In case of Linear Static and Normal Modes analysis, The Nastran Punch (PCH) format file contains various supported output across multiple solution sequences. I am having some problem on reading this file on Matlab. However, I did not find anything Does anybody know where to get simple and free import routines? Commercial programs like IMAT would be somehow overengineered for my tasks. op2 file is a Nastran output2 format for model and results data. The tool reads a Nastran Punch file (*. Hello experts, If I use "Print, Punch" for stress output into F06 file or PCH file I get only the results at corner nodes (grid points) but not of midside nodes for parabolic elements. pch file is a Nastran punch format results file. PCH is Nastran Punch Output. Card objects have methods to access data such as Mass, Area, etc. f06 file Format S. Now I have been able to convert punch file in excel file for the displacements but in the case of the forces I couldn't do it. This version of online help is no longer maintained. Except as otherwise permitted by Autodesk, Inc. Use the Complex Plot module to view the complex results and the XY Plot module to view the PSD results. The current support of HDF5 output format is: Dec 5, 2024 · PCH File Summary Five known software programs (notably, MSC Nastran developed by MSC Software) are related to the PCH file extension. It is the punch file (. After inserting "NASTRAN SYSTEMCELL (560)=1" into "File Management Section" of solution the line numbers vanished from PCH file, good to know: Thank you for that. The PUNCH file is quite easy to read and understand. It definitely improves ‘Results Attach’ performance, especially when using large models with a million degrees of freedom. com The . For programming purposes at the other hand, there is a better option in my opinion. See full list on github. Description: Double precision option for Nastran ASCII Result File (Nastran punch file format). op2 file) output for normal modes, frequency response, and transient subcases. File Creation This file is created when the Nastran or PUNCH formats are chosen. hdf5), refer to PARAM, HDF5 and . The four-letter abbreviation DISP is interchangeable with DISPLACEMENT. Noor Ul Amin Apr 21, 2025 Nastran Replies 2 Views 2K Apr 28, 2025 format=OUTPUT2 can also be used to request results to be output in the Nastran output2 format (. f06 and punch files, binary results in output2, output4, xdb files, etc. op2 file). OptiStruct generates a variety of output files depending on various factors affecting output. (See documentation for the I/O Option OUTPUT). e. The . The BDF reader/writersupports 406 cards including coordinate systems. Contribute to anick107/nastran_pch_reader development by creating an account on GitHub. I achieved to get a file format that looks exactly the same as the one that can be written from Jun 22, 2010 · Hi, I'm asking punch output file for determine displacements (at the nodes) and forces (at the centroids) in a plate model. Oct 28, 2022 · Forum Jump:Users browsing this thread: 1 Guest (s) Mar 2, 2010 · Hi, I am would like to know how can I get the stiffness matrix at some specific nodes of a Nastran Finite Element Model? I believe that I should prepare a punch file with contents similar to the following lines: DMIG KAAX 0 6 2 0 363 DMIG* KAAX Input OptiStruct Bulk Data Format Output HyperMesh Result File (Results) H3D BINARY File (Results) OptiStruct ASCII File (Results) Nastran Output2 File (Results) Nastran Punch File (Results) HyperGraph Format (Iteration history, sensitivities, effective mass) Microsoft Excel ® (Sensitivities) HDF5 The BDF (Bulk Data File) is the file format used by MSC Nastran and NX Nastran. PCH files associated with Precompiled Header Format. h5 file. And then I have to create a matrix from the values contained in this file. Jun 6, 2025 · Nastran Punch Output The PCH file extension is categorized as a Data file, most commonly associated with MSC Nastran in the role of a Nastran Punch Output. format = OUTPUT2 can also be used to request results to be output in the Nastran output2 format ( file). Here you can Nastran and Test: Compare Mode Shapes and FRFs« Go Back For details of the supported analysis types and elements when the . hdf5 file. PCH is Nastran Punch Output for analysing structures. pch) in DMIG format: param,extout,matrixpch It should be put in the NX NASTRAN Case Control section above subcase statements (in FEMAP under ANALYSIS select PREVIEW INPUT and edit your NX NASTRAN input deck). It is recommended to use the OUTPUT command instead of the FORMAT command since it is more flexible and allows different frequencies of output for different formats during an optimization. File Contents The . Input OptiStruct Bulk Data Format Output HyperMesh Result File (Results) H3D BINARY File (Results) OptiStruct ASCII File (Results) Nastran Output2 File (Results) Nastran Punch File (Results) HyperGraph Format (Iteration history, sensitivities, effective mass) Microsoft Excel ® (Sensitivities) HDF5 OptiStruct generates a variety of output files depending on various factors affecting output. How to buy Buying with Siemens Buy online Partners Academics Renewals Refund policy Oct 21, 2015 · Nastran f06 files are formatted to provide adequate readibility for users. An H3D file written with GPFORCE with " use = FBD " (i. pch-file format after doing a fft in Matlab on my results (which were calculated by RecurDyn). My model consists of: - one CHEXA with 20 nodes (8 corner + 12 midside), Therefore, the SORT1 option is recommended for results output in OUTPUT2 format and SORT2 option is recommended for results output in PUNCH format. This is due to the fundamental differences in formation between Sep 19, 2022 · Hi everyone, I need to read a punch file (. Using the OP2 interface, you can read large result files quickly and Building Plots with Nastran Punch Files HyperGraph 2D is capable of directly reading Nastran punch files for complex displacement and Power Spectral Density (PSD) results in SORT 1 format. Application: MSC Nastran. Displacement output filters are supported for static and buckling analysis in H3D and PUNCH formats. Therefore, the SORT1 option is recommended for results output in OUTPUT2 format and SORT2 option is recommended for results output in PUNCH format. Click here to visit the documentation portal OP2 Nastran Output2 format (. KPI output includes maximum value for Displacement, Stress, Strain, and Plastic Strain with respect to the corresponding property. This file is created when the Nastran or PUNCH formats are chosen. In the user guide of NX Nastran there are some sample outputs of punch data, and it is structured very differently than what I get from Autodesk Nastran. Info: I work in Simcenter NX 10 and solve static problems with NX NASTRAN 10. Jun 18, 2017 · At my university we use 'LMS VirtualLab', which works fine with the Altair PUNCH-File format. pun), does anyone know how to solve this problem? . Many checks are also performed to verify that your model is correct. OP2 Nastran Output2 format (. The Nastran Punch (PCH) format file contains various supported output across multiple solution sequences. For Fluid velocity output, the Real and Imaginary parts are calculated as: Therefore, the SORT1 option is recommended for results output in OUTPUT2 format and SORT2 option is recommended for results output in PUNCH format. File Contents Dec 19, 2017 · I thought the punch file structure and format is similar for all Nastran software. The order of data in the punch file matches the order of the data in the . At my university we use 'LMS VirtualLab', which works fine with the Altair PUNCH-File format. You do not have to deal with page breaks, empty lines or repeatitive identifiers at each page like you do in an f06 file. HyperGraph directly reads Nastran SORT1, SORT2 and PSD punch file formats, SOL 108 and SOL 111 punch file, and supports the following result types: Displacement (regular and PSD format) The SPARSE output type is only available when the OPTI output format is used. other software being able to tie into Nastran results). f06 is more "human readable" with column headers, page breaks, etc. pch file) OPT OptiStruct ASCII format (multiple files) PAT Mar 25, 2024 · Overview pyNastran is an interface library to the various Nastran file formats (BDF, OP2, OP4). I have tried to edit the output request as below The FRFs in the Nastran Punch file can be copied to the Simcenter Testlab project. Using the BDF interface, you can read/edit/write Nastran geometry without worrying about field formatting. In order to get my final results I need to imitate the . op2 file) PCH Nastran Punch format (. Examples Manually create a punch format DMIG string, treat it as a file, and read it in with a couple different options: Therefore, the SORT1 option is recommended for results output in OUTPUT2 format and SORT2 option is recommended for results output in PUNCH format. Nastran can output results in many different formats: printed results in . The Nastran Punch (PCH) format file contains various supported output across multiple solution sequences. Input OptiStruct Bulk Data Format Output HyperMesh Result File (Results) H3D BINARY File (Results) OptiStruct ASCII File (Results) Nastran Output2 File (Results) Nastran Punch File (Results) HyperGraph Format (Iteration history, sensitivities, effective mass) Microsoft Excel ® (Sensitivities) HDF5 For details of the supported analysis types and elements when the . To which results and which format are you referring? Sep 24, 2016 · I thought the punch file structure and format is similar for all Nastran software. Jul 8, 2024 · Where are the Nastran In-CAD and Inventor Nastran result files saved? For example, Viewing the LOG or OUT file can provide more insight about why an analysis is failing than the abbreviated information shown in the "Output" tab of Nastran In-CAD and Inventor Nastran. For details about the old HDF5 format (. For every mode, it prints relative Nodal displacements of all the nodes The corresponding post-processors (HyperView / HyperGraph) can easily convert the PHASE/MAG format to the required formats. In addition, they are categorized under two distinct file types, but mainly identified as the Nastran Punch Output File format. For details of the supported analysis types and elements when the . The output request initiation and corresponding parameters are controlled by the STRESS I/O Options Entry and Subcase Information Entry. format = OUTPUT2 can also be used to request results to be output in the Nastran output2 format (. By doing so, features like curve scrolling can be used to quickly overlay data. File Contents Hi, I am searching for an import routine to read NASTRAN punch files for postprocessing into MATLAB. Results in ASCII formats are output in the specified/requested FORM. Output is controlled by the I/O Option ACCELERATION. Overview pyNastran is an interface library to the various Nastran file formats (BDF, OP2, OP4). Thanks a lot, Stephan I have a normal modes analysis result in optistruct interface, but now i need the result file translate into Nastran punch file (*. Jan 24, 2014 · Output file created by MSC Nastran, a structural analysis program that enables you to test the integrity of different structures such as spacecraft or buildings; contains different types of data output depending on the card (similar to a command) that is run. The FREQ and TIME options are only valid for Modal/Direct Transient Analysis with Fourier transformation. The stress conponents avaialble and their order does depend on element type. PSDF and RMS von Mises stress results based on the Segalman Method are also written to the . Hello!, You can use EXTOUT with option MATRIXPCH, this will write an ASCII structural stiffness matrix output on the punch file (. pch file) from NX Nastran. MPCFORCE output is available for the following solution sequences: Solution Sequence Element Force Output Request Description: Requests element force output. This argument only applies to the PUNCH format (. Applied Power output is available only for Steady-State Heat Transfer Analysis in H3D and PUNCH files only. Apr 26, 2016 · Hello All, I have difficulty in outputting punch file (. Using the OP2 interface, you can read large result files quickly and OP2 Nastran Output2 format (. Format description not yet available. It contains all the results in a fixed-length text table format. pun), does anyone know how to solve this problem? The Nastran Punch (PCH) format file contains various supported output across multiple solution sequences. When set to ON, extends the data precision from 6 decimal places to 15. pch file) OPT OptiStruct ASCII format (multiple files) PAT The pyNastran software interfaces to Nastran’s complicated input and output files and provides a simplified interface to read/edit/write the various files. I achieved to get a file… Multiple FORMAT commands are allowed. The output request initiation and corresponding parameters are controlled by the ACCELERATION I/O Options Entry and Subcase Information Entry. Does anyone know of a Multiple FORMAT commands are allowed. The BDF writer writes a The Nastran Punch (PCH) format file contains various supported output across multiple solution sequences. Format: Example: ELFORCE = ALL The . . The software is compatible currently being used on Windows, Linux, and Mac. Nastran Punch（PCH）フォーマットファイルには、複数の解析タイプにわたりサポートされているさまざまな出力が含まれています。 出力要求の開始および対応するパラメータは、 ACCELERATION 入出力オプションおよびサブケース情報エントリによって制御されます。 The Nastran Punch (PCH) format file contains various supported output across multiple solution sequences. From the Complex Plot toolbar, select the Build Plots panel. f06 file printout. Input OptiStruct Bulk Data Format Output HyperMesh Result File (Results) H3D BINARY File (Results) OptiStruct ASCII File (Results) Nastran Output2 File (Results) Nastran Punch File (Results) HyperGraph Format (Iteration history, sensitivities, effective mass) Microsoft Excel ® (Sensitivities) HDF5 nastran_pch_reader NASTRAN punch file parser Installation In a virtualenv (see these instructions if you need to create one): pip3 install nastran-pch-reader The . The abbreviation SDISP is interchangeable with SDISPLACEMENT. The punch file has all of this formatting removed and just contains the data values. Oct 28, 2001 · The f06 file has output formatted for many things other than just the requested outputs, so I would expect that the act of reading it algorithmically will be much more difficult than reading the punch file or other similar files. If you also need to write loads information, use DMIGPCH Therefore, the SORT1 option is recommended for results output in OUTPUT2 format and SORT2 option is recommended for results output in PUNCH format. 2. The HDF5 output is printed to a . This use case applies to about 62% of files with the PCH extension. csv) readable by Calc or Excel. I'm considering real and imaginary values of The . File Contents For details of the supported analysis types and elements when the . However, you must first master the output requests you make in Nastran. The good thing is The HDF5 file produced by MSC Nastran is a binary file and the fastest way to access results in Patran. I see the grid Id and the frequency but the rest of the numbers I don't know what they are. Module currently support the following outputs: solution sequences: SOL101, SOL111 requests: MPCF, SPCF, ACCELERATION, DISPLACEMENTS, FORCE (only for CBUSH and CELAS2) sorting: SORT1 and SORT2 representation for frequency response: real/imaginary and magnitude/phase Example: import nastran_pch NASTRAN punch reader. Feb 4, 2004 · Hi I've ran a random vibration analysis (sol 111) and I have made an element stress punch file (ELSTRESS(SORT2,PUNCH,REAL)), but when I open the file I don't know how to read it. h3d file for Random Response Analysis (only available in the H3D format). pch file) or the OUTPUT2 format (. Category: Data files. Nastran is a powerful, highly flexible analysis and optimisation finite-element program on an open architecture for analysing stress, vibration, and heat transfer Oct 11, 2011 · Similar threads S Changing Nastran . OptiStruct supports the following input/output formats. pch ファイルは、 Nastran punchフォーマットの結果ファイルです。 ファイル生成 このファイルは、 Nastran フォーマットまたはPUNCHフォーマットが選択されたときに作成されます（入出力オプションの OUTPUT の説明をご参照ください）。 ファイル内容 The . h5 output format is requested, refer to the . 3rvxliu tzcz25 fk1o b3ontnc7ti mcyhl lsg i0dfi9 ayu 0dqp6 lh