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FhSim

FhSim. Time domain simulation and visualization of dynamic systems. Motivation. Accumulate knowledge through software, and avoid ad-hoc programming. Provide basis for future projects. Nonlinear dynamic systems are often best described in the time domain.

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FhSim

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  1. FhSim Time domain simulation and visualization of dynamic systems

  2. Motivation • Accumulate knowledge through software, and avoid ad-hoc programming. • Provide basis for future projects. • Nonlinear dynamic systems are often best described in the time domain. • Visualization provides improved understanding of systems.

  3. Associated projects • Present • Anchor lines for real time simulation (OSC) • State estimator for trawl system surveillance (Rolls-Royce) • Trawl optimization for fishermen • Future • Training simulator in Trondheim (Fisheries, oil spill prevention) • Trawl control systems • Further projects for OSC • Aquaculture net cage design and mooring system.

  4. Features of fhSim • Flexible • Supports various integration methods, both fixed and variable time step. • Simulation objects can be compiled into dll’s, making various programming languages possible. • License manager has separate licenses for each simulation object. • 3D visualization • Uses OGRE3D (Object-Oriented Graphics Rendering Engine) • Each simulation object contains its own visualization methods and properties. • Visualization can utilize the GPU, relieving the CPU. • Setup • The simulation is set up through XML. • Output • 3D visualization • Output file • Postscript plot

  5. Simulation object Input ports Output ports • Mass point • States: • Pos [3] • Vel [3] • Properties: • Mass [1] Pos [3] Force [3] Vel [3] dPos/dt [3] dVel/dt [3] State derivatives

  6. fhSimmain architecture FhSim Port I/O Integrator File I/O ModelStructure Method SO DllWrapper License manager Dll SO

  7. FhSimmain architecture with visualization FhSim Port I/O Integrator File I/O Visualization ModelStructure Input Scene Method SO DllWrapper Camera License manager Dll SO Extended with visualization methods Added visualization methods

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