This presentation is the property of its rightful owner.
1 / 18

# Air-Breathing Hypersonic Flight Vehicle PowerPoint PPT Presentation

S P A C E Structures, Propulsion, And Control Engineering C e n t e r. Air-Breathing Hypersonic Flight Vehicle. Presented by: Alfie Gil Antonio Martinez. Team Members Danny Covarrubias Alfie Gil Antonio Martinez. Faculty Advisors Dr Chivey Wu. Objective.

Air-Breathing Hypersonic Flight Vehicle

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

#### Presentation Transcript

S P A C E

Structures, Propulsion, And Control Engineering

C e n t e r

## Air-Breathing Hypersonic Flight Vehicle

Presented by:

Alfie Gil

Antonio Martinez

Team Members

Danny Covarrubias

Alfie Gil

Antonio Martinez

Dr Chivey Wu

NASA Grant URC NCC NNX08BA44A

### Objective

• To understand the system model behavior before applying the control algorithm

• To apply an adaptive control to the current model

NASA Grant URC NCC NNX08BA44A

### Overview

• Hypersonic Model

• Future Goals

NASA Grant URC NCC NNX08BA44A

### Hypersonic Model

Conditions:Trim State:

M = 10 (Mach Number)

Altitude = 98,425 feet

Image from Semi-Final Report p62

NASA Grant URC NCC NNX08BA44A

### Ridge Body Equations

where T = Fuel Ratio

e = Elevon Deflection Angle (rad)

V = Velocity (ft/s)

 = Flight Path Angle (rad)

h = Altitude (ft)

 = Angle of Attack (rad)

NASA Grant URC NCC NNX08BA44A

### (conti) Equations

NASA Grant URC NCC NNX08BA44A

### Disturbance

Disturbance due to the longitudinal and vertical wind gusts dx and dz.

where V0 is the velocity of Mach 10 in terms of ft/s

NASA Grant URC NCC NNX08BA44A

• Some fun facts:

• 1 mach = 761.2 mph (Speed of Sound)

FA-18 Hornet Breaking the sound barrier, Photo Custody of the Navy

NASA Grant URC NCC NNX08BA44A

• Some fun facts:

• 1 mach = 761.2 mph (Speed of Sound)

• 10 mach = 7,612 mph ~ 2 miles/sec

• AHFV would fly from CSULA to Santa Monica (~20 miles) in 10 seconds!

Hyper-X at mach 7, Photo Custody of the Nasa

NASA Grant URC NCC NNX08BA44A

NASA Grant URC NCC NNX08BA44A

NASA Grant URC NCC NNX08BA44A

Preliminary Tests: Varying Fuel Ratio

INPUT:

FuelRatio

2

Defl. Angle

- 25 deg

INPUT:

FuelRatio

5

Defl. Angle

- 25 deg

NASA Grant URC NCC NNX08BA44A

Preliminary Tests: Varying Deflect. Angle

INPUT:

FuelRatio

2

Defl. Angle

- 25 deg

INPUT:

FuelRatio

2

Defl. Angle

+5 deg

NASA Grant URC NCC NNX08BA44A

Additional uncertainty due to structural deformation.

Elastic Deflection:

n = 2.5751 x 10-8 (rad, local change in angle of attack)

t = 3.0666 x 10-8 (rad, elevon deflection)

NASA Grant URC NCC NNX08BA44A

### (continued)Future Goals

• Once the modeling of the Hypersonic Vehicle is done, we would test the control algorithm

• Mix μ Compensator

NASA Grant URC NCC NNX08BA44A

### References

• Anderson, John D. Fundamentals of Aerodynamics. McGraw-Hill. 1984.

• Intelligent Flight Control. Semi-Final Report. Prepared by USC students.

• Brandt, Steven et al. Introduction to Aeronautics: A Design Perspective. AIAA. 5th printing.1997.

• Wu, Chivey. Mechanical Engineering Professor. California State University, Los Angeles.

NASA Grant URC NCC NNX08BA44A

### Questions?

NASA Grant URC NCC NNX08BA44A

### Extra Slide 1

NASA Grant URC NCC NNX08BA44A