| Project_Magenta Project Magenta - High End Flight Simulation Software. FMC, Glass Cockpit, Flight Automation |
| Promodel_Corporation Manufacturing, medical, and service simulation modeling. |
| PS1_-_Flight_and_systems_simulation_for_the_B747 PS1 is a professional research and training tool for the Boeing 747-400 series. It models the entire FMC, EFIS, EICAS, MCP, TCAS, electrics, and hydraulics simultaneously in real time. |
| QCADesigner Quantum-dot cellular automata simulator and design layout tool. QCADesigner is capable of simulation with millions of cells. Available for Linux, mac OS X, and SPARC Solaris and is free to download. |
| QuantumOctave QuantumOctave is a set of GNU Octave functions for doing quick-and-dirty simulations of quantum computers and - in general - quantum systems. |
| Raczynski_Consulting Training, consulting, articles, and software downloads representing Dr. Stanislaw Raczynski's work. |
| REBECA-3D A boundary element method (BEM) thermal analysis software for electronic assemblies and components. |
| RePast A software framework for creating agent based simulations using the Java language |
| ROSIM_Systems_Home_site_ Introduces ROSIM Systems SimKit a new business system simulation/design tool. Describes what it's for and how to use it. Screen shots included. |
| Rtz-Soft RTZ-Soft - CAE Software - Engine simulation software Spark ignition,diesel and two stroke engine simulators Scan tools, Chip tuning software ecc. |
| RUBE_Modeling_and_Simulation_Project Research in Human-Computer Interaction (HCI) teaches us how to use metaphors of real-world---or imaginary yet capable of being visually manifested---material, corporeal objects. In rube, this applies |
| Saker_Solutions_independent_simulation_services_company Independent supplier of simulation services. |
| Savannah_Simulations_–_Business_Simulations Savannah Simulations provides modeling and simulation services for business and related areas. Savannah Simulations applies the system dynamics approach and other simulation methodologies: agent based |
| Scalable_Networks Network simulator designed from the outset for maximum speed and scalability, with real-time simulation as an achievable goal. |
| Schedula_-_General-purpose_discrete-event_simulation_package_-_Shareware Schedula is a general purpose tool for simulating a network of activities that process items (documents, patients, mechanical parts,...) and compete for resources. It handles N batches (or classes) of |
| Science_Simulations_Laboratory Ten interactive simulations in Physics, Chemistry and Biology, widely used in secondary and university courses in the U.K., arranged in such a way that together they constitute a complete classical l |
| Scientific_Software_International,_Inc_ SSI publishes: LISREL for Structural Equation Modeling. HLM for Hierarchical Linear and Nonlinear Modeling. Item Response Theory (IRT) based programs for test analysis and test scoring: BILOG, BIL |
| Show_Flow_Simulation_Software Program for manufacturing, logistics and material handling. |
| SigmaPi_Neurosimulator SigmaPi is a simulator for recurrent neural neural networks. It uses the LSTM (Long Short-Term Memory) model. It runs on Unix/X11. |
| 20-sim_modeling_and_simulation_of_dynamic_systems 20-sim is a state-of-the-art modeling and simulation package for dynamic systems using iconic diagrams, block diagrams, bond graphs and equation models. Download a free full-working demo now. |
| Simplorer,_The_Multi-Domain_Simulation_System A sophisticated design package for power electronics, and drive technology. |
| Simul8_Corporation Offers software for ERP implementation, predictive dialing, staff scheduling and forecasting, call tracking, customer relationship management, and telemanagement processes. |
| Simulation_&_Consulting_Services CreateASoft is a leading provider of Windows-based business simulation software and consulting services. CreateASoft has been developing dynamic process engineering solutions for customers since 1992 |
| Simulation_and_environmental_modeling_links Interesting links in: Modeling and Simulation, Environmental Decision Support Systems. |
| Simulation_and_Training_Research_and_Development The Institute for Simulation and Training is one of the nation's leading simulation, training, modeling and virtual reality research centers. Located by the University of Central Florida (UCF) in O |
| Simulation_Center Simulate online with MSC.Nastran, IronCAD, and other engineering software. Run simulation, FEA, CAD, and analysis apps on a subscription basis. MSC.Nastran uses a finite element method for analyzing |
| Simulation_Engineering_by_Jim_Ledin Simulation veteran Jim Ledin delivers step-by-step instructions on the entire range of simulation techniques, and gives sage insight into the related management issues. Features a CD-ROM with source c |
| Simulation_links_-_Karlsruhe_University Useful simulation links gathered by the Karlsruhe University Library. |
| Simulation_of_unsteady_processes_using_nonlinear_indicial_theory Description of Nielsen Engineering and Research's indicial prediction system technology. Includes generalized impulse response identification for unsteady aerodynamics, aeroservoelasticity, earthquak |
| Simulation_Resources_-_McLeod_Institute This is an (uncomplete and never finished) overview of software for simulation development and application. Members of the McLeod Institute have experience with some of the products and are continuous |
| Simulation_Science_-_Oak_Ridge_National_Laboratory Simulation Science programs at Oak Ridge National Laboratory. Recent projects include: Environmental Systems, Engineering Applications, Physical and Chemical Sciences, Experimental Validation, Compu |
| Simulation_Software_–_Simprocess_&_Simscript Simulation software leaders for over 40 years. Free download of simulation software, Simprocess or Simscript. Use our simulation packages to design and test your business ideas and start receiving mea |
| Simulation_software_for_metal_industry Calcom is an independent company based in Lausanne (Switzerland) providing software solutions for the casting industry (Continuous casting and shape casting) as well as for the metal forming industry. |
| Simulation_Software_ITI-SIM The software for modeling, analysing and optimization of dynamically stressed, complex nonlinear systems.ITI GmbH Dresden,Germany.Simulations in hydraulics, pneumatics, mechatronics, drive system, rai |
| Simulation_Software_Survey The survey is a representation of available simulation packages. Includes a lot of simulation packages, their characteristics and vendor contacts. A good source of information in the field of simulati |
| Simulations_-_overview This document reviews the field of simulation, its major lessons and tools to consider given objectives and industry. |
| Simuledge_Simulation_Ireland The areas of supply chain modelling, logistics, material flow, and business process re-engineering have all been successfully simulated leading to several hundred percent return on investment. Using c |
| simul8-planner_-_Simulation_Scheduling SIMUL8-Planner is a customizable production planning and scheduling development platform. Production rules are designed to be flexible, easy to change, and dialog-driven through object-oriented build |
| SIMWALK_-_die_Simulationssoftware_für_Personenbewegungen SimWALK ist die flexible Simulation für Personenströme in Grossgebäuden und grossräumigen Flächen |
| Soar_Technology,_Inc_ Cognitively inspired software that encodes knowledge into systems to automate complex tasks, simplify human-system interaction, or simulate human-like behavior for military and civilian applications. |
PEDSIM is a simple, microscopic pedestrian crowd simulation system. Itconsists, for the time being, of only a small simulation coreand some functions to direct the pedestrians' desire. Theoutput of the program is some POV-Ray files generated directlyfrom the main executable (someone needs to separate this eventually),and a data stream in an XML-like format. This stream can be used to attachexternal viewers in order to watch progress of the simulation in real time.These viewers are available, but are at the moment not under GPL. This package is suitable for use in crowdsimulation (e.g. evacuation), games, and movies. At the moment, it will produce a hard-coded animation sequence of somesword-fighting warriors as an example. If there is enough interest in thissimulation package, I will definitely improve the code in a way that it becomes more generally usable (e.g. add a user interface). See the examples page for example pictures, a shortmovie, and for screenshots.PEDSIM was initially developed for RedHat Linux (i686) using gcc3.2.2, and was tested on a Opteron 64bit machine with Fedora Core 1.It should compile on every POSIX compatible operating system. However,for windos, you might have to change the networking code. You can download the source code.There is much more code available than presented here. However,not all of that code is under the GPL. Please contact me if you areinterested in other software related to this simulation package. Notethat the simulation presented here is very similar to the one used inour academical project, but was basically rewritten from scratch.Therefore, contact me as well if you consider using PEDSIM, since my future efforts on this GPL'ed project depend on the feedback I get.Please let me know in which direction this projectshould be extended, and for which purpose this could be of interest toyou.Here follows a small introduction to the technique used in the code ofPEDSIM. Much more about PEDSIM, pedestrian simulations and distributedcomputing in general can be found in the book"Distributed Intelligence in Real-Word Mobility Simulations" byChristian Gloor, Hartung-Gorre, ISBN 3-86628029-7, available e.g. here (if you cannot order this book, contactme). The simulation core takes care of the physicalaspects of the system, such as interaction of the agents with theenvironment or with each other. Typical simulation techniques for suchproblems are:In microscopic simulations, each particle is representedindividually. In macroscopic or field-based simulations, particles areaggregated into fields. The corresponding mathematical models arepartial differential equations, which need to be discretized forcomputer implementations.It is possible to combine microscopic and field-based methods,which is sometimes called smooth particle hydrodynamics. In SPH, the individuality ofeach particle is maintained. During each time step, particles areaggregated to field quantities such as density, then velocities arecomputed from these densities, and then each individual particle ismoved according to these macroscopic velocities.As a fourth method, somewhat on the side, exist the queuingsimulations from operations research. Here, particles move in anetworks of queues, where each queue has a service rate. Once aparticle is served, it moves into the next queue. For PEDSIM, we need to maintain individual particles, sincethey need to be able to make individual decisions, such as routechoices, throughout the simulation. This immediately rules outfield-based methods. We also need a realistic representation ofinter-pedestrian interactions, which rules out both the queue modelsand the SPH models.For microscopic simulations, there are essentially two techniques:methods based on coupled differential equations, and cellular automata(CA) models. In our situation, it is important that agents can movein arbitrary directions without artifacts caused by the modelingtechnique, which essentially rules out CA techniques.A generic coupled differential equation model for pedestrian movementis the social force model (by Helbing et al., see here)
where m is the mass of the pedestrian and v its velocity.v0 is its desired velocity; in consequence, the first term on the RHS models exponential approach to that desired velocity, witha time constant tau. The second term on the RHS modelspedestrian interaction, and the third models interaction of thepedestrian with the environment. The social force model should beconsidered as an example on how to model the pedestrian interaction.It is easy to understand and simple to implement. However, a future implementation of PEDSIM might use a different model. Pedestrians interact with each other, which includes avoidingcollisions (short range interaction), and attraction to enemies (longrange, which represents the "will" of the agents. This attraction toenemies is just an example and should be replaced by some morecomplicated and meaningful functions). Also avoidance of objects liketrees is implemented. 