Abstract
The altitude engine test is carried out to measure the performance of the engine of flight vehicle at the high altitude environment prior to the flight test. During the test, The measured pressures and temperatures at various positions, air flow rate, fuel flow rate, thrust of the engine are measured. These measured values are used to calculate the representative performance values such as the net thrust and the specific fuel consumption. Hence each of the measured parameter has effects on the total uncertainly of the performance values. In this paper, the combined standard uncertainties of the net thrust and the specific fuel consumption were estimated from the uncertainties of the various measured values. Also, by estimating the repeatability and the reproducibility, the confidence levels of the altitude engine test were validated by the analysis of variation on the repeated test data by different tester groups.
Similar content being viewed by others
References
Decisioneering, Inc., 2005, “Crystal Ball 7 User Manual.”
Devore, J. L., 2000, “Probability and Statistics for Engineering and the Science,”Duxbury Thomson Learning, pp. 402–412.
ISO (International Standardization Organization), 1993, “Guide to the Expression of Uncertainty in Measurements.”
Jun, Y., Yang, I., Kim, C., Yang, S., 2004, “Uncertainty Analysis and Improvement of an Altitude Test Facility for Small Jet Engines,”Journal of Korean Society for Aeronautical and Space Science, Vol. 5 No. 1, pp. 46–56.
Jun, Y., Yang, I., Nam, S., Kim, C., Yang, S., Lee, D., 2002, “Small Turbojet Engine Test and Uncertainty Analysis,”Journal of Korean Society for Aeronautical and Space Science, Vol. 30 No. 5, pp. 118–126.
KOLAS (Korea Laboratory Accreditation Scheme), 2002, “Guide to the Expression of Uncertainty in Measurements.”
Lee, D., Yang, I., Jun, Y., Kim, C., Yang, S., 2002, “Improving the Measurement Uncertainty of Altitude Test Facility for Gas Turbine Engines,”Journal of Korean Society of Mechanical Engineers, Vol. 26 No. 11, pp. 1496–1502.
Lee, D., Yang, I., Kim, C., Yang, S., 2003a, “Uncertainty Assessment Using Monte Carlo Simulation in Gas Flow Measurement,”Journal of Korean Society of Mechanical Engineers, Vol. 27 No. 12, pp. 1758–1765.
Lee, J., Kim, C., Cha, B., Yang, S., Lee, D., 2003b, “Constructions of KOLAS and ISO 9001 Quality Management System,”Journal of Korean Fluid Machinery Association, Vol. 6, No. 4, pp. 66–69.
Papadopoulos, C. E., Yeung, H., 2001, “Uncertainty Estimation and Monte Carlo Simulation Me-thod,”Flow Measurement and Instrumentation, Vol. 12, pp. 291–298.
Pyzdek, T., 2003, “Six Sigma Handbook,” McGraw-Hill.
Yoon, M., Yang, S., Lee, D., 2001, “Uncertainty Analysis of Altitude Performance of a Gas Turbine Engine,”Journal of Korean Society for Aeronautical and Space Science, Vol. 29, No. 1, pp. 128–133.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Lee, J., Yang, I., Yang, S. et al. Uncertainty analysis and ANOVA for the measurement reliability estimation of altitude engine test. J Mech Sci Technol 21, 664–671 (2007). https://doi.org/10.1007/BF03026971
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF03026971