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COCKPIT SYSTEM DESIGN FOR GENERAL AVIATION FREE FLIGHT USING A
COGNITIVE ENGINEERING APPROACH
Jie Rong, Yuanyuan Ding, and John Valasek
Texas A&M University, College Station, Texas 77843-3141
AIAA Paper 2003-5774
The realization of general aviation Free Flight requires advanced
cockpit systems to assist pilots in managing information and
decision-making. In this paper, the application of cognitive engineering
concepts to cockpit system design for general aviation is discussed. The
design of an Aircraft Approach and Landing Assistant is presented as an
example of this method. Its purpose is to enhance pilot situational
awareness, aid pilot decision-making, and reduce pilot workload during
the approach and landing phase in an environment with complex weather,
traffic and terrain conditions. The ongoing development of the system is
based on the cognitive model of general aviation pilots. It is
implemented into existing flight software and a real-time,
pilot-in-the-loop flight simulation system is developed for its
validation. The proposed approach appears to be a promising candidate
for designing intelligent cockpit systems and decision-aiding tools for
future general aviation Free Flight pilots. |
DESIGN SHEET: AN ENVIRONMENT FOR FACILITATING FLEXIBLE TRADE STUDIES
DURING CONCEPTUAL DESIGN
M. J. Buckley, K. W. Fertig, and D. E. Smith
Rockwell International Science Center, Palo Alto Laboratory
Palo Alto, CA 94301
AIAA Paper 1992-1191
This paper summarizes the capabilities of Design Sheet, a software
program that facilitates trade studies during conceptual design. Design
Sheet permits the designer to build a model for use in conceptual design
by entering a set of algebraic equations in a very flexible form. The
designer can then use Design Sheet to easily change the set of
independent variables in the algebraic model, and to rapidly perform
trade studies, optimization, and sensitivity analyses. The basic
mathematics and algorithms used in Design Sheet are outlined. The
functionality of Design Sheet is illustrated first with a simple
example, and then with a more complex example involving initial aircraft
sizing. For realistic conceptual design problems, it is argued that
Design Sheet provides the capability to perform trade studies with
significantly increased flexibility and efficiency. |
GPS-BASED TERRAIN AVOIDANCE SYSTEMS - A SOLUTION FOR GENERAL
AVIATION
Controlled Flight into Terrain
Jonathan Baldwin, Rick Cassell, Alexander Smith
Rannoch Corporation, Alexandria, VA
Of the 2,533 fatal general aviation (GA) accidents from 1982-1988, a
total of 646 fatal accidents (nearly 26%) were attributed to controlled
flight into terrain (CFIT). This category of accident was the single
biggest cause of GA aircraft fatalities during this period. This paper
discusses a concept for a low-cost GA Ground Proximity Warning System (GPWS)
that can satisfy the operational requirements for avoiding CFIT
incidents, thereby improving the utility and safety of GA flight
activities. The results from this work are expected to validate the
concept of operation, determine the functional and physical
characteristics of the device, and validate the design through modeling
and simulation. Assuming a successful conclusion to the concept
validation stage, fabrication of a preliminary hardware prototype will
also be initiated in preparation for flight testing. The device relies
on two extensive databases and a GPS sensor to develop a low-cost GPWS
designed specifically for the small, single engine, single pilot GA
aircraft— referred to as the TWAS (Terrain Warning and Avoidance
System). |
AN INTEGRATED DECISION-MAKING METHOD TO IDENTIFY DESIGN REQUIREMENTS THROUGH AGENT-BASED SIMULATION FOR PERSONAL AIR VEHICLE SYSTEM
Jung-Ho Lewe, Byung-Ho Ahn, Daniel A. Delaurentis, Dimitri N. Mavris,
Daniel P. Schrage
Aerospace Systems Design Laboratory
School of Aerospace Engineering
Georgia Institute of Technology
Atlanta, Georgia 30332-0150
AIAA Paper 2002-5876
A product's design requirements guide the next development efforts.
Thus, correct decision-making is critical in generating design
requirements as vehicle concepts are being formulated. A new method is
proposed to account for system-of-systems aspects and to aid a
decision-making process in synthesizing design requirements for a
personal air vehicle system. The use of an agent-based modeling
technique facilitates the abstraction of the key elements in the whole
system. A traveling party is treated as an agent, and the infrastructure
environment in the national transportation system is easily represented
in the model. A number of simulations are performed to demonstrate the
capability of this new approach. The method not only measures the effect
of design requirements of a personal air vehicle system through
sensitivity analyses, but also evaluates the effect of system
technologies quantitatively, while maintaining the system-of-systems
perspective. With this powerful method, designers can extract essential
technical requirements that allow polishing of concept vehicles; policy
makers can investigate the infrastructure and technology impact of new
systems; and business planners can perform an analysis based on their
own market assumptions. |
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