## Computer Simulation of Continuous SystemsSimulating a continuous process on a (computer) model provides a means of understanding how a system will behave when it is subject to particular constraints. Computers are of particular use for this purpose as the system is one which involves differential equations, eg. the behaviour of the vehicle suspension systems and chemical reactions. The book describes how analogue, digital and hybrid computers are used in simulating continuous systems. Their use is illustrated in the text by a number of simple problems and most chapters also contain examples of varying complexity selected from a range of scientific and engineering disciplines. A short appendix describes the functioning of analogue and hybrid units; for the rest of the book a knowledge of electric circuit theory is not required. |

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### Contents

Preface | 1 |

Analogue and Simple Parallel Logic Computers | 11 |

Study of Differential Equation Problems by Analogue | 25 |

Generation of Functions of the Independent Variable | 51 |

Generation of Functions of a Dependent Variable | 70 |

Analogue Memory and its Applications | 89 |

Miscellaneous Advanced Techniques | 113 |

Digital Simulation | 131 |

Sequential Hybrid Computing | 196 |

Applications Involving Simultaneous Computation | 228 |

Simulation in Control | 249 |

Analogue and Hybrid Computer Hardware | 289 |

Nonlinear analogue devices | 299 |

Preparation and Checking | 309 |

Computer aids | 316 |

Hybrid Computers | 177 |

### Common terms and phrases

amplifier amplitude scaling analogue computer analogue model analogue section analogue units analogue variable assumed BASIC BEDSOCS boundary value boundary value problems capacitor characteristic circuit coefficient compute period computer diagram computer model constant control systems derivative differential equations digital computer digital section digital simulation diode display DYNAMIC DYNEND effect EQUEND error evaluation example feedback friction gain high-speed hybrid computer I. C. mode independent variable initial condition initial value input integrator involving iteration language linear loop machine unit maximum value method model equations multiplier needed non-linear normal notes objective function obtained operation operational amplifiers optimisation optimum output voltage parallel logic parameter values perform positive potentiometer PRINT produce projectile problem range RESET resistor routines sampling simple simulation languages solution solved speed of launch statement static step subroutine switch technique tion transfer function velocity voltage zero