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Modern Control System Theory and Design, 2nd Edition by Stanley M. Shinners

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PROBLEMS

1.1. Figure P1.1 illustrates the control system for controlling the angular position of a ship’s heading. The desired heading, which is determined by the gyroscope setting, is the reference. An electrical signal proportional to the reference is obtained from a resistor that is fixed to the ship’s frame. Qualitatively explain how this control system operates in following a command for a southbound direction.

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Figure p1.1

1.2. Explain how the rudder positioning system discussed in Problem 1.1 can be modified to become a closed-loop control system.

1.3. An electric hot-water heater is illustrated in Figure P1.3. The heating element is turned on and off by a thermostatic switch in order to maintain a desired temperature. Any demand for hot water results in hot water leaving the tank and cold water entering. Draw the simple functional block diagram for this closed-loop control system and qualitatively explain how it operates if the desired temperature of the thermostat is changed.

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1.4. Explain how the system discussed in Problem 1.3 operates if the ambient temperature surrounding the tank suddenly changes. Refer to the block diagram.

1.5. Figure P1.5 illustrates a control system using a human operator as part of the closed-loop control system. Draw the block diagram of this liquid ...

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