After some engine model replacement, an aircraft model is experiencing some aggressive nose up phenomenon which may lead to stall. To combat this problem, a new control system has been introduced to the Flight Control Computer, FCC. When activated, the new system measure the aircraft pitch from an Angle of Attack, AOA sensor to analyze either the aircraft is nosing up or down. If the pitch angle is too high, describing that the aircraft might be in a dangerously nose up position, the FCC will gain control of the horizontal stabilizer using a linear motor (FIG 1), thus bringing the nose of the aircraft down into safer pitch angle range (FIG 2). a. What is the input/output of the control system? b. Is this system is a close loop or open loop? c. What is the actuator used in this control system? d. Draw the Block Diagram to describe the control system. Horizontal stabilizer Pivot Horizontal stabilizer Jackscrew moves the angle of the horizontal stabilizer up or down. Motor Figure 1: Horizontal Stabilizer mechanism Pitch Angle Figure 2: Pitch angle of an aircraft
After some engine model replacement, an aircraft model is experiencing some aggressive nose up phenomenon which may lead to stall. To combat this problem, a new control system has been introduced to the Flight Control Computer, FCC. When activated, the new system measure the aircraft pitch from an Angle of Attack, AOA sensor to analyze either the aircraft is nosing up or down. If the pitch angle is too high, describing that the aircraft might be in a dangerously nose up position, the FCC will gain control of the horizontal stabilizer using a linear motor (FIG 1), thus bringing the nose of the aircraft down into safer pitch angle range (FIG 2). a. What is the input/output of the control system? b. Is this system is a close loop or open loop? c. What is the actuator used in this control system? d. Draw the Block Diagram to describe the control system. Horizontal stabilizer Pivot Horizontal stabilizer Jackscrew moves the angle of the horizontal stabilizer up or down. Motor Figure 1: Horizontal Stabilizer mechanism Pitch Angle Figure 2: Pitch angle of an aircraft
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Question
![After some engine model replacement, an aircraft model is experiencing some aggressive
nose up phenomenon which may lead to stall. To combat this problem, a new control
system has been introduced to the Flight Control Computer, FCC. When activated, the
new system measure the aircraft pitch from an Angle of Attack, AOA sensor to analyze
either the aircraft is nosing up or down. If the pitch angle is too high, describing that the
aircraft might be in a dangerously nose up position, the FCC will gain control of the
horizontal stabilizer using a linear motor (FIG 1), thus bringing the nose of the aircraft
down into safer pitch angle range (FIG 2).
a. What is the input/output of the control system?
b. Is this system is a close loop or open loop?
c. What is the actuator used in this control system?
d. Draw the Block Diagram to describe the control system.
Horizontal
stabilizer
Pivot
Horizontal
stabilizer
000000c
Jackscrew moves the
angle of the horizontal
stabilizer up or down.
Motor
Figure 1: Horizontal Stabilizer mechanism
Pitch Angle
Figure 2: Pitch angle of an aircraft](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Feec23434-5af2-4efb-8048-a22daef19129%2F7221900d-4c79-4c9f-9a84-1890d6ebc550%2Fjmwirv_processed.jpeg&w=3840&q=75)
Transcribed Image Text:After some engine model replacement, an aircraft model is experiencing some aggressive
nose up phenomenon which may lead to stall. To combat this problem, a new control
system has been introduced to the Flight Control Computer, FCC. When activated, the
new system measure the aircraft pitch from an Angle of Attack, AOA sensor to analyze
either the aircraft is nosing up or down. If the pitch angle is too high, describing that the
aircraft might be in a dangerously nose up position, the FCC will gain control of the
horizontal stabilizer using a linear motor (FIG 1), thus bringing the nose of the aircraft
down into safer pitch angle range (FIG 2).
a. What is the input/output of the control system?
b. Is this system is a close loop or open loop?
c. What is the actuator used in this control system?
d. Draw the Block Diagram to describe the control system.
Horizontal
stabilizer
Pivot
Horizontal
stabilizer
000000c
Jackscrew moves the
angle of the horizontal
stabilizer up or down.
Motor
Figure 1: Horizontal Stabilizer mechanism
Pitch Angle
Figure 2: Pitch angle of an aircraft
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