Open Source BSD Mechanical and Civil Engineering Software

A cross-platform, open-source, alternative to NIST REFPROP. Based on reference-accuracy equations of state and transport property correlations for refrigerants like Water, CO2, R134a, Nitrogen, Argon, Ammonia, Air, R404a, R410a, Propane and many others. A selection of secondary working fluid properties are also available. Can also make use of REFPROP when available. In addition, calculations for Humid Air Properties based on ASHRAE RP-1485 are provided. Wrappers are available for MATLAB, Octave, Python, C#, Fortran and many more.

SUMO is an open source, highly portable, microscopic and continuous traffic simulation package designed to handle large networks. It allows for intermodal simulation including pedestrians and comes with a large set of tools for scenario creation. The code and the issue tracker can be found at https://github.com/eclipse-sumo/sumo/ The documentation can be found at https://sumo.dlr.de/docs/

The EdytorNC project now consists of four applications that can be useful for programming and operating CNC machine tools. EditorNC is a specialised text editor for CNC programmers. FTPserver is a simple FTP server for transferring cnc programs to and from the machine. SerialPortFileServer is a simple server for transferring cnc programmes to and from the machine via RS232 ports. ProgramManager is a program that makes it easy to search for cnc programs based on, for example, part number, part name contained in the first three comments in the cnc program. Some EdytorNC features : bolt holes calculation; solutions of triangles calculation; speed, feed calculation; conversion inch/mm, mm/inch; code colouring; RS232 data transmission with automatic file saving and possibility to download new CNC program directly from machine (beta function, look in tool tips in serial port configuration dialog). Clipboard to keep texts from system clipboard.

SWAN is a third-generation wave model, developed at Delft University of Technology, that computes random, short-crested wind-generated waves in coastal regions and inland waters.

AsterixInspector - displays contents of files in Eurocontrol Asterix format. Asterix is a binary data exchange format in aviation, standardized by Eurocontrol.

itom is an open source software suite for operating measurement systems, laboratory automation and data evaluation. One main application of itom is the development and operation of sensor and measurement system for instance in a laboratory environment. Therefore, the software has to be able to communicate with a wide range of different hardware systems, such as cameras or actuators and should provide a diversified and as complete as possible set of evaluation and data processing methods. Additionally, the rapid prototyping of modern measurement and inspection setups requires a system, where parameters or components can easily be changed at runtime, necessitating the availability of an embedded scripting language. Finally, when operating a measurement system, it is also desirable to extend the graphical user interface by system adapted dialogs and windows. The project has been moved mid 2023 to github: https://itom-project.github.io https://github.com/itom-project

Parametric analysis is often needed for exploring design options, especially when a global optimization method is not available, or the optimization result is in doubt. Parametric analysis can also be applied to all design variables simultaneously, which forms an exhaustive search that, providing that the search grid is fine enough, will guarantee a global optimum solution. In order to perform complex parametric analyses on multiple parameters with more than a handful of alternative values each, a tool to generate commands for the simulation model to run, and to collect results afterwards will be needed. jEPlus has been developed as such a parametric tool for EnergyPlus. To see jEPlus in action, check out this video: http://youtu.be/jBA7Q7npNK4 The source code of the jEPlus project is now hosted on GitHub: https://github.com/jeplus/jEPlus/

SWASH is a general-purpose numerical tool for simulating unsteady, non-hydrostatic, free-surface, rotational flow and transport phenomena in coastal waters as driven by waves, tides, buoyancy and wind forces. It provides a general basis for describing wave transformations from deep water to a beach, port or harbour, complex changes to rapidly varied flows, and density driven flows in coastal seas, estuaries, lakes and rivers.

This is the Textron Bell412 helicopter for the Flightgear flight simulator. This rotorcraft is designed in order to provide the most realistic flight experience to player, including design and behaviour. This project is updated every 1 to 6 months with major improvments. Keep updated and happy Flightgear. My Youtube Channel: https://www.youtube.com/channel/UCmxlWKtFn19wYVe2DYU9XCw/videos v0.9.1- r54 released Feb/2018 : * FDM: updated. Better IT. * MODEL: new texture & model updated * BOMBABLE: WIP (weapons ready) * MISC: 3rd Party COPYRIGHT Included and 3rd party data clearly detailed. ===> see CHANGELOG.

MATSim is a framework for building multi-agent transport simulations. MATSim has moved to GitHub: https://github.com/matsim-org/matsim Source code and newer releases are now hosted at GitHub!

The TFEL library is a collaborative effort of the French Atomic Commission and Électricité de France. TFEL mostly includes the MFront code generator. MFront is based on C++ and provides several domain specific languages which were designed to simplify the implementations of new material properties, mechanical behaviours and simple material models. A particular focus was made on mechanical behaviours which are by essence more complex and may have significant impact on the numerical performances of mechanical simulations. Various performance benchmarks show that the code generated using MFront is in most cases on par or better than other implementations, generally written in Fortran. For mechanical behaviours, MFront introduces interfaces for various finite element or FTT solvers (Cast3M, Code-Aster, ZeBuLoN, Abaqus, Europlexus, AMITEX_FFT, etc..). The authors hope that it will prove usefull for researchers and engineers, in particular in the field of solid mechanics.

pfcalc is a pipe friction calculator using the Darcy-Weisbach equation. gpfcalc is a Gtk front-end for pfcalc. Qpfcalc is a Qt front-end for pfcalc.

continuous beam analysis - calculates member forces and support reactions of a continuous beam

geoStarsLib has functions for dealing with many geodesy-based problems found in positioning, pointing, and surveying situations. It is useful to determine absolute position on the earth, pointing vectors, coordinate transformations, and other functions.

A multidomain building performance simulation program.

This library contains several of user material subroutines for implicit quasi-static (UMAT) and explicit dynamic (VUMAT) versions of the Abaqus solver. The project web site: http://abumpack.sf.net. The Abaqus is a proprietary finite element (FE) code ( http://www.3ds.com/products-services/simulia/products/abaqus/). Users can write subroutines for use with the Abaqus. Linear elastic, isotropic hardening plasticity, Gurson-Tvergaard-Needleman (GTN), Rousselier constitutive models are provided. Quote this code as: A. Shterenlikht, N. A. Alexander, Levenberg-Marquardt vs Powell's dogleg method for Gurson-Tvergaard-Needleman plasticity model, Computer Methods in Applied Mechanics and Engineering 237-240:1-9 (2012). DOI: http://dx.doi.org/10.1016/j.cma.2012.04.018

Linear and nonlinear (from version 2.0.0) finite element analysis of 3-dimensional frames, trusses and other such structures, designed for use in civil engineering. SDL 1.2 or 2 can be used for graphics and an executable file for Window$ is included in version 2.1.0, as well as a program for analysing 2-dimensional structures, written in Sinclair BASIC for ZX Spectrum computers. A free emulator written in JavaScript, i.e. JSSpeccy v1, which was tested in FIrefox 10 from 2012 (and obviously works in all later versions), is also provided.

The collection MICROMECHANICS (micromechanics.zip) includes: (1) lecture notes (microbook.pdf) on the analysis of heterogeneous materials and homogenization, and (2) source codes (microcode.tar.bz2) that accompany the computational exercises in Part II of the notes. Instructions on using the codes are given in the README file of each exercise. Further instructions can be found in the file microcode.tar.bz2. The MATLAB codes are used for visualization, evaluating analytical bounds and estimates as well as in the generation of digital and particulate microstructures. The Fortran codes are based on the finite element method in linear and nonlinear settings, the latter capable of finite deformations with damage. The underlying theory is outlined in the lecture notes. -- İlker Temizer Assistant Professor Department of Mechanical Engineering Bilkent University 06800 Bilkent, Ankara Turkey

Advanced Quality Assurance for Aerometric-Data (AQUA) is an open-source quality assurance platform for wind resource data. Developed and currently maintained by the Wind Energy Center at the University of Massachusetts. See www.umass.edu/windenergy

Spreadsheet Template for Structural Engineering (FEA Analysis for beams, trusses, 2D-frames). It makes possible to create your own parametric models.Templates for engineering calculation (fatigue, concrete plates, etc)

An urban air pollution model based on the mass-conservation principle and the advection-diffusion equation. A technical report R-207-2012 can be found in http://www.nies.go.jp/kanko/kenkyu/index-e.html

CASUP is a Cellular Automata (CA) library for HPC and supercomputers. It can be used in materials science (microstructure evolution, grain coarsening, fracture etc.), physics (Ising magnetisation) and for many other CA. If you use the library, please reference it as: A. Shterenlikht, L. Margetts, Three-dimensional cellular automata modelling of cleavage propagation across crystal boundaries in polycrystalline microstructures, Proc. Roy. Soc. A 471:20150039, DOI: http://dx.doi.org/10.1098/rspa.2015.0039. CASUP can be linked with FE (e.g. MPI FE library ParaFEM, http://parafem.org.uk) for a multi-scale multi-physics CA-FE framework. CASUP extensively uses Fortran 2008 and 2018 coarrays, as well as MPI, OpenMP and do concurrent. CASUP can be used with Cray, Intel and GCC/OpenCoarrays compilers. Scaling beyond 100,000 cores on Cray XC30 was demonstrated.

Combustion analysis of internal combustion engine in-cylinder pressure data. For use in the development, calibration and modelling of internal combustion engines. Compatible with data recorded with AVL Indiwin/Indimaster/Indiset I-File format. Go to www.catool.org to download the latest version

DualSPHysics is based on the Smoothed Particle Hydrodynamics method and can be downloaded from the official website (www.dual.sphysics.org). The code is developed to study free-surface flow phenomena where Eulerian methods can be difficult to apply, such as waves or impact of dam-breaks on off-shore structures. DualSPHysics is a set of C++, CUDA and Java codes based on the SPHysics FORTRAN project (www.sphysics.org) that are designed to deal with real-life engineering problems and are provided along with pre-compiled binaries and source for Windows/Linux/Unix as well as a number of example test cases.

** This project has moved to GitHub. ** ** https://github.com/OpenWaterAnalytics/epanet-rtx **