MAE 792 Research

MAE 792 Research

Set up meeting with Dr. Rodriguez Wendesday nites.

Next time I meet with him I have to get cd vs Re for  3 different boxes.

how does Cd effect Re? Is it linear

Re=rho*V*d/mu

Cd=D/(0.5*rho*v^2)*A

Here are some guidelines for your upcoming ACC Hypersonic Vehicle Design presentation…..

The following questions should be answered in any presentation, paper, thesis, etc….

The question listed below should be thought of as providing a “scaffold” for the presentation, paper, thesis, etc….

PROBLEM

What problem is being addressed?

Why is this problem important?

LITERATRURE SURVEY

What approaches have been taken to address the problem?

What are the pros and cons of each approach?

APPROACH TO BE TAKEN

What approach are we taking?

Why?

What are the pros and cons of our approach?

What is the cost function being optimized?

What model is being used?

What are the issues?

vehicle design issues

(aero, structural, propulsion….minimizing drag, minimizing weight,

                                 constraining minimum structural flexibility, minimizing energy use)

and

control design issues

(properties at input/output, minimizing coupling,

minimizing control effort, maximizing bandwidth subject to robustness constraints)

ILLUSTRATIVE EXAMPLE

               Give the simplest possible example to illustrate our approach and how it compares with other approaches

               Here, we seek some simple graphical visualization or a  few graphical visualizations

MAIN EXAMPLE

                What is main problem being solved?

                State the precise mathematical problem that is being used to address the above

                Show  why this mathematical problem  addresses the problem being addressed

MAIN RESULTS

               Show a family of results ….to illuminate critical tradeoffs…always have a family of curves….never a single curve….

               How has the approach taken worked?

When is the approach good? When is it sufficient/adequate?

When is the approach not good? When is another approach essential?

Relevant questions:

When can we obtain a decoupled vehicle?

When is a coupled vehicle essential?

When is a decentralized controller adequate?

When is a centralized (MIMO) controller essential?

How does approach taken address uncertainty?

How does approach taken address control properties at output? input?

If an aero person solved the problem, what type of vehicle would they get?

If a controls problem solved the problem, what type of vehicle would they get?

How does our approach permit us to address the concerns of both campls?

How does the approach taken address each of the above?

DIRECTIONS FOR FUTURE RESEARCH

                What open issues remain

Prioritize the order in which they should be addressed in the future

HERE ARE SOME GENERAL COMMENTS:

slides should be easy to read…uncluttered!....just a few bullets on each slide….supported by 1-2 figures….

MAIN SLIDES: Contributions of Work (1-2 slides)…these are the hardest slides to develop because they (in principle) should summarize everything concisely in a few bullets!!!!

Lets speak soon….

aar

Dr. Armando Antonio Rodriguez

Professor of Electrical Engineering

School of Electrical, Computer and Energy Engineering

Ira A. Fulton Schools of Engineering

Arizona State University

aar@asu.edu

http://aar.faculty.asu.edu/