Salt Lake City, Utah
June 23, 2018
June 23, 2018
July 27, 2018
In academia, aircraft design is a unique capstone course(s), measured in one or two semesters. In some cases, aircraft design courses introduce the student to both the design process as well as the complexities associated with designing an object that travels through the air.
In industry, aircraft design is a unique and complex process, measured in years. Success or failure of an aircraft development program is often the result of decisions made in the initial stages of the design process. At these early stages, design knowledge is low and technical risk is high. These factors increase the likelihood of requirements creep, and if not managed properly, can result in significant cost overruns, schedule slips, and cancellation of an aircraft program.
The first analysis step in aircraft design is the initial weight estimate. Initial sizing of an aircraft defines its rough size and weight based upon its intended requirements. At this very early stage of design, there is often no means of directly assessing the impact of creep-type changes in design parameters (e.g., range, payload, etc.) on the size of the aircraft, nor the effects of changing the input parameters themselves. This denies useful information to the students at the beginning stages of a course, educationally beneficial information to increasing student knowledge and intuition, as well as managing or reducing the risk inherent in design.
This paper presents an interactive sizing results using response surface techniques. It is intended to provide parametric information about the design space up-front, including the ability to perform several “what-if” scenarios early in the process. The interactive results presented in this paper provide value to the student and quantifiable information to reduce uncertainty in their design decisions. This method provides important student learning outcomes to the classroom environment.
Stringer, D. B., & Bunner, D. W., & Winkler, R. W. (2018, June), Aerospace Capstone Design: Interactive Initial Sizing Estimates for Increasing Designer Intuition and Mitigating Risk in the Early Stages of Aircraft Conceptual Design Paper presented at 2018 ASEE Annual Conference & Exposition , Salt Lake City, Utah. https://peer.asee.org/29760
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