A variety of learning modules and simulators using Java® applets have been developed to simulate structural engineering and dynamics concepts.
Tuned Mass Damper
This simulation demonstrates the behavior of buildings when they are damped.
Ground Excitation of a Single Degree of Freedom Building
This simulation demonstrates the behavior of buildings under earthquake excitation.
Mass Shaker on the Same Building
This simulation demonstrates the behavior of a building subjected to sinusoidal loading.
Motion Lab for Undergrads
This simulator demonstrates a building's behavior under dynamic loading. (Courtesy of Emma Shepherdson. Used with permission.)
Single Degree of Freedom Nonlinear Analysis Tool
This program was developed by the Federal Emergency Management Agency. It's very impressive and should be a useful tool. You can download the program onto your computer.
Introductory Matlab® Tutorial
This tutorial covers basic Matlab® commands.