## Model of a Nonlinear Pedulum

Model of a Nonlinear Pedulum The pendulum shown in Figure 9.6-1 has the following nonlinear equation of motion, if there is viscous friction in the pivot and if there is an applied moment M(t) about the pivot.  Ie +c6 +mgL sin9 = M(t) where I is the mass moment of...

## Simulation Diagrams

You develop Simulink models by constructing a diagram that shows the elements of the problem to be solved. Such diagrams are called simulation diagrams or block diagrams. Consider the equation y = 10f (t). Its solution can be represented symbolically as This solution...

## Piecewise-Linear Models

Piecewise-Linear Models Unlike linear models, closed-form solutions are not available for most nonlinear differential equations, and we must therefore solve such equations numerically. A nonlinear ordinary differential equation can be recognized by the fact that...

## Subsystems

One potential disadvantage of a graphical interface such as Simulink is that, to simulate a complex system, the diagram can become rather large and therefore somewhat cumbersome. Simulink, however, provides for the creation of sub system blocks, which playa role...

## Summary

The Simulink model window contains menu items we have not discussed. However, the oiles we have discussed are the most important ones for getting started. We have introduced just a-few of the blocks available within Simulink. Some of the blocks not discussed deal with...

## Simulation of a Vehicle Suspension

Linear or linearized models are useful for predicting the behavior of dynamic systems because powerful analytical techniques are available for such models, especially when the inputs are relatively simple functions such as the impulse, step, ramp, and sine. Often in...