Chapter seventeen
Basic system models
Objectives
The objectives of this chapter are that, after studying it, the reader should be able to:
- Explain the importance of models in predicting the behaviour of systems.
- Devise models from basic building blocks for mechanical, electrical, fluid and thermal systems.
- Recognise analogies between mechanical, electrical, fluid and thermal systems.
17.1 Mathematical models
Consider the following situation. A microprocessor switches on a motor. How will the rotation of the motor shaft vary with time? The speed will not immediately assume the full-speed value but will only attain that speed after some time. Consider another situation. A hydraulic system is used to open a valve which allows water into a ...
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