VisSim/Motion Tutorial
Detailed Tutorial of an AC Induction Motor
control & simulation for the speed control of a machine tool lathe and a
DC Brushless Motor control & simulation of a servo-controlled
positioning system.
Introduction to 6-DOF Simulation of Air Vehicles
Author:
Robert Josselson, Ph.D., ITT Aerospace Systems Group
Examines the essential elements of a 6DOF (six
degrees of freedom) simulation including Coordinate Systems and
Transformations, the Derivation of Equations of Motion, Keeping Track of
True Body Attitude and Aerodynamic Forces and Movements.
Simulation of Communication Systems
Author:
Eugene Estinto, Eritek, Inc.
Describes how to model and simulate analog, digital or mixed mode
communication systems. It discusses how to use a block diagram approach
to develop models of transmitters, channels and receivers and provides
detailed coverage of Signal Encoding, Modulation (Analog & Digital),
Channel Models (WGN, Fading, Multipath, TWTA, Binary Symmetric),
Demodulation, Signal Decoding (Viterbi & Trellis) and Signal Sinks (BER
Curves, Eye Plots, Frequency Domain Plots, Phase Scatter Plots). An
example of a VisSim/Comm system level simulation is included.
Heating, Ventilation and Air Conditioning (HVAC) Controls: Variable Air
Volume (VAV) Systems
Author:
Nebil Ben-Aissa, Johnson Controls
Discusses Variable Air Volume (VAV) Systems.
Develops models for a VAV Air Handling System and a VAV Control System.
The VAV Control System includes a room model, a damper model, and a VAV
controller (including a PID controller, a pulse width modulator,
actuators and sensors). The room model is then disturbed using loads
that approximate daily environmental room conditions to test the control
algorithm and understand the dynamics of the VAV system. The results of
the simulation are reviewed.
Biomedical Systems: Modeling and Simulation of
Lung Mechanics and Ventilator Controls Design
Author:
Mike Borello, Metran America, Inc.
Develops a mechanical lung/ventilator model
and investigates the behavior of the model with a feedback control
system. Uses real time Hardware-in-the Loop Simulation to verify the
control system then discusses the transfer of the control design to an
embedded system. The process can be applied to any embedded control
design application.
Fundamentals of Mathematical Modeling and Simulation
Authors: Dr. Arun Mulpur and Peter
Darnell, Visual Solutions, Inc.
A mathematical model of a dynamic system (two
masses connected by a slotted linkage) is developed and simulated. The
dynamics of the system are analyzed and interpreted visually through the
use of plot and display blocks. Six test cases are examined changing
various parameters (e.g. gravity, mass, friction).
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