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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Transformations enable to manipulate the shape, size and position of model. true false