Explain the operation of a Stepper motor; State the advantage
and disadvantage of a Stepper motor; State the difference between a
stepper motor and a DC motor.
1. Match the method of measuring competitive advantage with the
disadvantage of that method.
Accounting
profitability
A. Based on factors other than firm performance
Shareholder value
creation B. Based
on historic data.
A economic value creation C. Based on the value of goods to the
consumer.
2.
Who are stakeholders from a strategic management
perspective?
Anyone that has an equity stake in the firm.
Anyone that can materially affect the firm.
Anyone that cares about the firm.
Anyone for whom...
A) Refer to the diagram on “Speed Control of a Shunt Wound DC
Motor.
Suppose the no load voltage V = 90V, Ra +
R1 = 4 ohms, Rsh + RF = 130 ohms,
and the motor runs at a rated speed of 1000 RPM when IL
= 4 amps. What is the back EMF VB in volts when the
motor runs at IL = 6 amps?
Note: Type a 1-decimal number, rounded off to the nearest
0.1
B) How...
PD control
1. The equation of motion for the DC motor are given by the
equation:
J ¨?m + (B + KbKT Ra ) ? ?m = KT Ra Va (2)
where: J = 0.01kg · m2 , B = 0.001N · m · s, KT = 0.02N · m/A,
Kb = 0.02V /s and Ra = 10?.
(a) Suppose that feedback is added to the system to achieve
position control of the motor shaft. Given a desired shaft position...
Please define and explain the primary disadvantage or
each of the following capital budgeting methods and the alternative
methods which rectify that disadvantage: Payback Period; NPV; and
IRR.