|
曝光台 注意防骗 网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者
1. AGENCY USE ONLY (Leave blank) 2. REPORT DATE July 1999 3. REPORT TYPE AND DATES COVERED Technical Publication 4. TITLE AND SUBTITLE Helicopter Flight Simulation Motion Platform Requirements 5. FUNDING NUMBERS 548-40-12 6. AUTHOR(S) Jeffery Allyn Schroeder 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) Ames Research Center Moffett Field, CA 94035-1000 8. PERFORMING ORGANIZATION REPORT NUMBER A-9900432 9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) National Aeronautics and Space Administration Washington, DC 20546-0001 10. SPONSORING/MONITORING AGENCY REPORT NUMBER NASA/TP–1999-208766 11. SUPPLEMENTARY NOTES Point of Contact: Jeffery Allyn Schroeder, Ames Research Center, MS 262-2, Moffett Field, CA 94035-1000 (650) 604-4037 12a. DISTRIBUTION/AVAILABILITY STATEMENT Unclassified — Unlimited Subject Category 01 Distribution: Standard Availability: NASA CASI (301) 621-0390 12b. DISTRIBUTION CODE 13. ABSTRACT (Maximum 200 words) To determine motion fidelity requirements, a series of piloted simulations was performed. Several key results were found. First, lateral and vertical translational platform cues had significant effects on fidelity. Their presence improved performance and reduced pilot workload. Second, yaw and roll rotational platform cues were not as important as the translational platform cues. In particular, the yaw rotational motion plat-form cue did not appear at all useful in improving performance or reducing workload. Third, when the lateral translational platform cue was combined with visual yaw rotational cues, pilots believed the platform was rotating when it was not. Thus, simulator systems can be made more efficient by proper combination of platform and visual cues. Fourth, motion fidelity specifications were revised that now provide simulator users with a better prediction of motion fidelity based upon the frequency responses of their motion control laws. Fifth, vertical platform motion affected pilot estimates of steady-state altitude during altitude repositionings. Finally, the combined results led to a general method for configuring helicopter motion systems and for developing simulator tasks that more likely represent actual flight. The overall results can serve as a guide to future simulator designers and to today’s operators. 14. SUBJECT TERMS Flight simulation, Helicopters, Motion platforms 15. NUMBER OF PAGES 84 16. PRICE CODE A05 17. SECURITY CLASSIFICATION OF REPORT Unclassified 18. SECURITY CLASSIFICATION OF THIS PAGE Unclassified 19. SECURITY CLASSIFICATION OF ABSTRACT 20. LIMITATION OF ABSTRACT NSN 7540-01-280-5500 Standard Form 298 (Rev. 2-89) Prescribed by ANSI Std. Z39-18 298-102
|
