MBDyn — Multibody Dynamics
Politecnico di Milano
Solver for the dynamics of multibody mechanical systems, including flexible bodies and aeronautical systems.
Get it from the vendorNumerical computing and mathematics are the layer beneath most engineering work: solving systems of equations, integration, curve fitting, signal processing and plotting. This is where the alternatives to the expensive commercial packages live, along with the language that has become the de-facto standard.
How to choose
- If you already have scripts in MATLAB syntax — one tool here runs them with almost no changes.
- If you also need a block diagram for control system simulation — one package brings both capabilities together.
- If you want an analytical result rather than a number — a formula, not a value — you need a computer algebra system.
- And if you are building something that will grow, a programming language with numerical libraries gives you the broadest base.
Moving from a spreadsheet to a tool in this category is the highest-return investment in engineering work: a calculation you can review, version and re-run to the same result.
68 results
MFEM
Lawrence Livermore National Laboratory
A high-order finite-element library from Livermore National Laboratory, with GPU support, for electromagnetics, mechanics and topology optimisation.
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Netgen / NGSolve — Multiphysics Finite Elements
TU Wien / NGSolve Project
High-order finite element mesher and solver for mechanics, flow and electromagnetics.
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oemof.solph
oemof developer group
A model generator for energy system optimisation (LP/MILP) — combined heat and power, storage, heat pumps and renewables.
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OpenTURNS
OpenTURNS consortium
A Python and C++ library for uncertainty treatment — probabilistic modelling, reliability, sensitivity and metamodels for engineering risk.
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OSRM — Open Source Routing Machine
OSRM Project
A very fast road network routing engine — routes, distance matrices and service areas.
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pandapower
University of Kassel and Fraunhofer IEE
Power grid analysis in Python — load flow, optimal power flow, short circuit and state estimation for distribution and transmission.
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Pastas
Pastas developers (open-source community)
Python library for groundwater level time series analysis: response models to rainfall, evaporation and pumping, calibration and decomposition of effects.
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PEST++
USGS
Parameter estimation, uncertainty analysis and optimisation for any numerical model — common for groundwater and surface water.
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PFLOTRAN
PFLOTRAN development team (Sandia, LANL, PNNL, ORNL and partners)
Parallel code for multiphase subsurface flow and reactive transport, developed at US DOE national laboratories.
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Pinocchio
Stack of Tasks (LAAS-CNRS, INRIA and contributors)
Open-source C++ and Python library for rigid multibody dynamics: kinematics, Jacobians, and inverse and forward dynamics for robots.
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pvlib python
pvlib python contributors
A Python library for solar PV modelling — sun position, irradiance on tilted surfaces and PV system output.
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pyFDA
Christian Münker
Open-source digital filter design and analysis: FIR and IIR, frequency and time responses, poles and zeros, and fixed-point simulation.
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Pyomo
Sandia National Laboratories and Pyomo contributors
An optimisation modelling language in Python — linear, nonlinear and mixed-integer problems for processes, energy and scheduling.
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PyPSA
PyPSA community (TU Berlin)
Optimisation of power and energy systems — economic dispatch, capacity expansion, storage and sector coupling.
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Python
Python Software Foundation
The language behind most modern engineering computation, and its full ecosystem.
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Pyzo
Pyzo Project
A lightweight Python environment for scientific and engineering work.
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R
R Foundation
The leading language for statistics and data analysis — quality control, experiment analysis, reliability and forecasting.
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Reaktoro
Allan Leal and contributors
A C++ and Python framework for chemical equilibrium and kinetics of multiphase systems — water, gases and minerals.
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REopt
National Laboratory of the Rockies (formerly NREL)
Online tool for the economics and optimal sizing of PV, wind, storage and CHP for a building, campus or microgrid.
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Robotics Toolbox for Python
Peter Corke and contributors
Open-source Python robotics library: arm kinematics and dynamics, inverse kinematics, trajectories and path planning for mobile robots.
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RStudio Desktop
Posit
A convenient workspace for R — editor, console, plots and automated reports in one place.
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SAGA GIS
SAGA Development Team
Advanced spatial analysis, especially on elevation models and terrain.
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SageMath
The Sage Developers
A large open mathematics system — symbolic algebra, calculus, numerics and plotting, an alternative to Mathematica and Maple.
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