AIRCRAFT DESIGN

AIRCRAFT DESIGN

AE469 COURSE OUTLINE Spring 2006

Instructor: Dr. Judah Ari-Gur, Room F-246, Tel.: (269) 276-3419, Fax: 276-3421,

Webpage: http://www.wmich.edu/mae/faculty/jag.htm

Office Hours: Tue. 12-12:50, Fri. 1-1:50 or by appointment

Textbook: Raymer, D.P., Aircraft Design: A Conceptual Approach, Third Edition, AIAA, 1999. (optional RDS-Student: Software for Aircraft Design, Sizing and Performance, v. 4.2).

Prerequisites: AE450, AE460.

OBJECTIVES

The primary objective is to involve the student in conceptual and preliminary designs of aeronautical vehicles. It requires the synthesis of various disciplines like aerodynamics, controls, propulsion, structures and manufacturing to develop a smooth and cost-effective design that satisfies mission and payload requirements. The use of computer-aided-engineering, to improve productivity and enhance design vision and communication, will be emphasized. The course will stimulate creativity, enhance communication skills and reward for applying optimization in the engineering design process.

DESCRIPTION

This is a project oriented course. There will be two individual mini-projects and a large team project. The lecture topics will guide along the development of the projects as they progress.

For all the projects, the mission requirements and design constraints will be described by the course instructor, that will play the role of the customer. The solutions should be developed by the students. As in the work-place, it is the responsibility of the engineer (student) to consult with the customer, seek and acquire expert advise and study the necessary knowledge to complete these projects.

The two small design projects will require only early conceptual proposals in the form of "artistic impressions". Each student will have to submit three different ideas for each project.

The large project is an extension of the second mini-project. The class will be divided into teams. Each team will be assigned one concept from the pool of ideas and will complete the concept development and its preliminary design. Mutual discussions, sharing the work load and assigning areas of individual responsibilities between the team members are essential to a successful design.

There will be two due dates for the team project. The first one is for the completion of the conceptual design. The second due date is for the final preliminary design. On both due dates bound written reports will be submitted and the proposed designs will be orally presented to the class (active participation of every student in the team is required). The reports must be wordprocessed and typewritten, and should use high quality graphics. In the oral presentations the audience will learn, discuss and evaluate the various proposals. For quality communication, both, written reports and oral presentations, should be clearly outlined, rich in graphics and concise in language.

TOPICS

The iterative design process.

Conceptual design:

Sketch; size estimates.

Fuselage plan.

Wing selection and geometry; tail.

Engines.

Control surfaces.

Sizing.

Preliminary design:

Layout; lofting.

Loads; propulsion.

Inboard arrangement.

Systems.

Case studies.

GRADING ( !!! 2006 Due Dates !!! )

Artistic impressions - 20% (Thur., 19 Jan. ; Tue., 31 Jan.)

Midterm exam - 10% (Tue., 7 Mar.)

Team project (concept) - 25% (Tue., 21 Feb.)

Team project (prelim.) - 30% (Thur., 20 Apr.)

Final exam - 15% (Mon., 24 Apr., 12:30-2:30)

Project grades are based on the following:

* Final report and design quality - 75%

* Presentation - 25%

Failure to participate in any of the above means failure ("E") in the course.

A=90%- ; BA=85%- ; B=80%- ; CB=75%- ; C=70%- ; DC=65%- ; D=60%-

Remember: You have to earn your grades. Consistent effort is essential,

but grades are assigned for the level of accomplishment.

ALL THE ASSIGNMENTS/PROJECTS MUST BE SUBMITTED UNTIL DUE DATE.

LATE SUBMISSIONS WILL NOT BE ALLOWED (=ZERO GRADE) !!