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Track 2 Session 3
1:00 to 2:00 p.m. Thursday
October 25, 2007
Jet Engine Deterioration
Modeling, Reliability Prediction and Analysis
The Propulsion System Analysis (PSA)
group at Infotech provides services to assess the performance of
jet engines deployed in commercial operation. Current practice
is to analyze the measured data on different engine parameters
of interest. The process follows data trending for each engine
to assess the performance. PSA has formulated and implemented a
new reliability engineering process to model the aircraft engine
deterioration and life estimation based on Weibull analysis
utilizing on-wing data from multiple units. The new process
generates estimates on data trending, deterioration rates, mean
life, remaining life, failure rate, reliability with confidence
bounds, warranty time, relevant statistical results and
probability plots. The proposed process from PSA, Infotech is
successfully demonstrated with field information. Directions for
future work are suggested.
Ramesh Chandra Kadiyala and Sekhar
Dwarapudi
Infotech Enterprises Ltd
Hyderabad, India |
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| Ramesh Chandra
Kadiyala specialized in the application of Mathematical,
Statistical, Simulation, Modeling, Optimization and
Computational Methods to solve the pressing problems faced in
Aerospace Engineering.
Dr. Chandra served at the Indian Space
Research Organization for three decades holding various
positions and made significant contributions in the areas of
Propulsion, Structures, Avionics, Data Processing & Analysis,
Parameter Estimation, Orbit Determination, Space Geodesy,
Tracking Network Planning, System Engineering, Reliability, Real
Time Software Development and Execution for Satellite and Launch
Vehicle Missions.
Dr. Chandra received a Bachelor of Science
Degree in Mathematics from Andhra University, India in 1965,
Master of Science in Applied Mathematics from University of
Roorkee, India in 1967, PhD in Numerical optimization from
Regional Engg College, Warangal, India in 1978. Dr Chandra has
published 22 Research papers and 160 Technical Reports. He
supervised 12 junior colleagues to acquire M.S. degree in
Software Systems and Aerospace Engineering.
Dr. Ramesh Chandra is with Infotech
Enterprises Ltd, India as Principal Consultant for Propulsion
System Analysis discipline for the last 5 years, and currently
working on a) developing a robust software tool to estimate the
aircraft engine component performance based on Kalman filter and
b) Bayesian analysis of computer code outputs.
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