Problem 7 A closed-loop feedback system is shown in Fig. 4. For what range of values of the param...
Problem 7 A closed-loop feedback system is shown in Fig. 4. For what range of values of the parameters K and p is the system stable? Ris) Ks +! Y15) Fig. 4, Closed-loop system with parameters K and p Problem 8 Arc welding is one of the most important areas of application for industrial robots. In most manufacturing welding situations, uncertainties in dimensions of the part, geometry of the joint, and the welding process itself require the use of sensors for maintaining weld quality. Several systems use a vision system to measure the geometry of the puddle of melted metal, as shown in Fig. 5. This system uses a constant rate of feeding the wire to be melted. Calculate the maximum value for K for the system that will result in a stable system. Controller Wire-melting proces Error Paidie diameter (0.55 + 1/3 + 1) diantar Arc current Desired 1 K 1+2 Vision system Measured diameter 0.005s + 1 Fig. 5, Welder control Problem 9 A cassette tape storage device has been designed for mass-storage. It is necessary to control the velocity of the tape accurately. The speed control of the tape drive is represented by the system shown in Fig. 6. Determine the limiting gain for a stable system. Power implifier Motor and drive mechanism 10 + 207 RE) X $100 Speed
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Electrical Engineering
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abdelrahman Selim
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