Off-the-shelf software licensing of kdFlex, the new standard for rigorous and fast flexible multibody dynamics available now.

Enterprise customers can combine licensing with consulting,
custom development, or long-term partnership and technical collaboration engagements. Reach out for more information!

Licensing Tiers

kdFlex Personal
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For non-commercial personal use
Features Include:
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Comprehensive rigid body dynamics
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Run-time system variability
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Extensible for system level simulations
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Simulation services
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Visualization
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Robotics
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Online resources
$0
annually
kdFlex Professional
2 Months Free!
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For small team; flexible body and real-time dynamics needs
Features Include:
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All from Personal tier
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Comprehensive flexible body dynamics
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Advanced rigid body dynamics
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Sub-graphs and sub-trees
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Technical support
$5000
annually
kdFlex Enterprise
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For large teams; high accuracy simulations
Features Include:
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All from Professional tier
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Finite Element Model pipeline
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Stress recovery
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Constraint embedding
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Advanced models
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Hi-fidelity rendering
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Priority Technical Support
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Need something else? Reach out for customized solutions
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kdFlex Personal
kdFlex Professional
kdFlex Enterprise
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Commercial Use
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Rigid Body Dynamics
Recursive "O(N)" SOA/ATBI forward dynamics
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Serial and Tree systems
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Serial and Tree systems
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Large family of hinge types
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User defined custom hinges
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System CM, mass properties
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Coupler/gear constraints
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Loop constraints
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Convel constraints
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Indirect state initialization
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Exact rigid body constrained dynamics
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Collision and contact dynamics
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Constraint kinematics analysis
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Relative/absolute coordinate model converters
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Constraint embedding
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Pruning/consolidating bodies
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Flexible Body Dynamics
FEM based modal deformation representation
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Recursive "O(N)" SOA forward dynamics
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Arbitrary mix of rigid and flexible bodies
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Serial and Tree systems
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Exact flex body constrained dynamics
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Equilibration
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Linearized state space generation
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System modes
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NASTRAN FEM interfafce
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Modes selection for reduced order modeling
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Component mode synthesis
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Residual vectors
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Lumped mass handling
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Stress Recovery
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Variable Configurations
Run time addition/deletion of bodies
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Run time enabling/disabling of constraints
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Prescribed motion enabling/disabling
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Variable mass support
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Sub-graphs and Sub-trees
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Robotics
URDF Support
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ROS interfaceable
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Forward kinematics
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Generalized inverse kinematics
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Jacobians - global and relative
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Gravity compensation
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Inverse dynamics
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Feedforward (regular)
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Feedforward (underactuated)
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Mass matrix via CRB
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Mass matrix inverse via SOA
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Operational Space Inertia
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rigid
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+ flex
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+ constraints
Move/squeeze decomposition
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Serial/parallel robot kinematics and dynamics
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Centroidal momentum etc.
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Embeddable in control/autonomy stack
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System Level Simulation
Large family of fixed and adaptive step integrators
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Framework for coupling custom models with dynamics
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Multi-rate models
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Kinematics simulation mode
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Zero-crossing detection
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Time delay modeling
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Step rollback
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API for closing the loop
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Nanosecond sim time granularity
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Parametric & Monte Carlo support
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Parallelization
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Simulation Core
Frames layer for relative pose, velocity, accelerations
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Units/quantities support for data
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Model files YAML, JSON, HDF5, pickle formats
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Importer for JPL DARTS models
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Data logging
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Uninitialized data/params detection
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Model sub-blocks importers/exportsers in YAML, JSON, HDF5, pickle formats
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Web based stripcharts
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Message verbosity control
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Object usasge tracking
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Emphemerides
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Integration with Reinforcement Learning systems
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Visualization
Web based 3D graphics
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CAD meshes
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Stick figure graphics
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Shadows, trails
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Collision detection
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Collision filtering
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Phong and PBR materials
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Multiple scene layers
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Movie creation
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Nodes visualizer for multi-body, frame structure
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Blender interface
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Advanced models
Spherical harmonics gravity
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N-body gravity
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Apparent mass dynamics (parachutes, submersibles)
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Terramechanics
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Rotating "inertial/planet" frames
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Aero-elastic, servo-elastic effects
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Support
Online chatbot
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Online documentation
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Jupyter notebook tutorials
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Narrated videos
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Technical support
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Priority
Training
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