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Solved: Refer to Figure 10.3.9, which shows a speed

System Dynamics | 3rd Edition | ISBN: 9780073398068 | Authors: William J Palm III ISBN: 9780073398068 208

Solution for problem 10.77 Chapter 10

System Dynamics | 3rd Edition

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System Dynamics | 3rd Edition | ISBN: 9780073398068 | Authors: William J Palm III

System Dynamics | 3rd Edition

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Problem 10.77

Refer to Figure 10.3.9, which shows a speed control system using an armature-controlled dc motor. The motor has the following parameter values. Create a Simulink model by modifying Figure 10.3.9 to use PI control instead of P control. Use the PI control gains computed in 10.50 part (b). Kb = 0.199 V-sec/rad Ra = 0.43 KT = 0.14 lb-ft/A ce = 3.6 104 lb-ft-sec/rad Ie = 2.08 103 slug-ft2 La = 2.1 103 H N = 1 a. Run the simulation using a unit-step command starting at t = 0 and a unit-step disturbance starting at t = 4 sec. Plot the speed and the motor current versus time. b. Run the simulation for 0 t 2 sec using a unit-ramp command. Plot the speed error and the motor current versus time.

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Monday, September 28, 2015 Reading Questions Friedman 1) Friedman believed that the purpose of a firm was to act based around the interests of the firm in order to produce maximum profit and benefit of its employees. Friedman does limit this definition to exclude social responsibility stating that it is not the main goal or interest of the firm because you would be spending that of which you have no right to dictate and therefor out of the realm of your job duties. 2) A manager has a specific job title, and that as a general statement is to act in the best interests of his firm, excluding social responsibility, in order to achieve maximum profit. Maximum profit also includes services rendered in a situation such as

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Chapter 10, Problem 10.77 is Solved
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Textbook: System Dynamics
Edition: 3
Author: William J Palm III
ISBN: 9780073398068

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Solved: Refer to Figure 10.3.9, which shows a speed