摘要: |
This project originally titled 'Assessment of Operational and Safety Benefits of Functionally Integrated Flight Guidance and Control' was retitled 'Advanced Guidance and Control - Operational and Safety Benefits' with the funding participants in mind (FAA, Honeywell, Gulfstream, and Smiths Aerospace) and with the goal of emphasizing the benefits that would accrue to these participants (government and industry). The project launched with multiple objectives, one of which included evaluating the suitability and effectiveness of this technology compared to a more traditional control scheme. Of particular interest was the ease of reuse and the associated performance achievable with the generic design when applied to an actual production program. The generic Total Energy Control System (TECS) outer loop design was evaluated for reuse and robustness without customizing the TECS outer loop design to achieve optimum performance. Instead, a test of the TECS was chosen in which the outer loop design of a traditional autoflight system was replaced with the TECS outer loop design. Very few adjustments were made to the Federal Aviation Administration-provided generic TECS outer loop design. No modifications were made for compatibility of the inner loop and outer loop designs for the hybrid system. The only modifications involved aligning the operational philosophies of the two control approaches so that a tangible performance comparison could be performed. A series of flight scenarios were run to compare the performance of the hybrid TECS/traditional design with the customized traditional design. Of particular interest was the relative performance of the two systems. Since the traditional system was tuned to yield a desired performance, a good response match of the TECS hybrid system would indicate good viability for reuse. The absolute performance of the systems was deemed less meaningful because many other factors independent of the control approach, such as simulation model fidelity, adversely influenced the absolute performance. Significantly improved TECS performance, over and above what is presented in this report, would likely be achieved by tuning the TECS. / NOTE: Final rept. / Supplementary Notes: Prepared in cooperation with Gulfstream Aerospace Corporation, Savannah, GA. Sponsored by Federal Aviation Administration, Washington, DC. Aviation Research and Development. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |