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Consider the experimental setup of an inverted pendulum shown in Figure P9.25
Suppose that direct fuzzy logic control is used to keep the inverted pendulum upright. The process measurements are the angular position, about the vertical (ANG) and the angular velocity (VEL) of the pendulum. The control action (CNT) is the current of the motor driving the positioning trolley. The variable ANG takes two fuzzy states: positive large (PL) and negative large (NL). Their memberships are defined in the support set [-30°, 30°] and are trapezoidal. Specifically:
In air-conditioning systems, streams of cold and warm air are mixed to get air with the right temperature. Consider a mixing chamber into which cold air enters at 8C and 100 kPa at a rate of 0.55 m^3 /s and warm air enters at 300C and 100 kPa. The ra..
a plant has two identical standby generator units for emergency power use. in the area of the generators the normal
A 680 liter oxygen tank is filled to the pressure of 13.7 Mpa, and used to help a respiratory patient in a room with a temperature of 20 degrees C. During one treatment, 135 Liters of oxygen is supplied from the tank to the patient. The tank is then ..
a 4140 steel alloy beam is designed to support a load at 50 of the yield stress. the beam is bolted to a bridge truss
1750g of air performs an expansion work of 3100kJ on the surrounding as it expands isothermally to a pressure of 63000kPa ad a volume of 0.065 cubic meters. Determine the temperature of the air and the initial volume.
three wires are made of the following materials. one wire is pure al. one wire is pure cu. one wire is pure ni. which
Compute an Arrow-Debreu equilibrium for an economy with two consumers, A and B, and two states, 1 and 2. Each consumer has a von Neumann-Morgenstern utility function for lotteries of money, and for each consumer the utility of x units of money is ..
Air enters a 28-cm diameter pipe steadily at 200 kPa and 20°C with a velocity of 5 m/s. Air is heated as it flows, and leaves the pipe at 180 kPa and 40°C. Determine
Indicate on a sketch of the effective potential the total energy for circular motion.
determine Wf and the force of attraction that acts to attempt to reduce the gap at t = 1 second. Where is the energy of the coupling field stored in this system?
find the following equivalent amounts if the interest rate is 8 compounded annually.a the present value of series of
ammonia enters the expansion valve of a refrigeration system at a pressure of 10 bar and a temperature of 248c and
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