How Long to Read Sensitivity Analysis of Turbine Engine Sustainment

How Long Does it Take to Read Sensitivity Analysis of Turbine Engine Sustainment?

It takes the average reader 1 hour and 45 minutes to read Sensitivity Analysis of Turbine Engine Sustainment by Eliseo Enrique Iglesias

Assuming a reading speed of 250 words per minute. Learn more

Description

In current turbine engine reliability models, the relationship between the MTTF (Mean Time to Failure) and the time to failure (TTF) of individual components is not well understood. Probabilistic sensitivity analysis provides a tool to identify the critical failure modes in an engine. These sensitivity measures reveal any effect of an individual component's uncertainty on the MTTF of the entire system. Using a conservative model, the minimum function, several different methods of identifying these critical failure modes were applied to both a 5-component mock engine model and a 22-component full turbine engine module (Rear Gear Box). Complex variable numerical differentiation methods were applied in order to calculate local probabilistic sensitivities. From this investigation two numerical differentiation methods were developed: direct complex variable Monte Carlo (direct CVMC) and complex variable score function (CVSF). Direct CVMC requires fewer samples but is not robust. CVSF circumvents any discontinuities in the response of interest but inherits a larger variance in the derivatives of interest. While direct CVMC provided first order derivatives, this required an approximation of the minimum function. CVSF, with an additional order of magnitude sampling cost, circumvents discontinuities in the minimum function and provided higher order derivatives. The sensitivities found through complex variable differentiation also provided a means to estimate the MTTF via Taylor series expansion. This eliminates the need to use a computationally expensive nested Monte Carlo loop. The MTTF via Taylor series expansion approximated the MTTF computed through the nested loop in both mock engine and 22-component models.

How long is Sensitivity Analysis of Turbine Engine Sustainment?

Sensitivity Analysis of Turbine Engine Sustainment by Eliseo Enrique Iglesias is 104 pages long, and a total of 26,416 words.

This makes it 35% the length of the average book. It also has 32% more words than the average book.

How Long Does it Take to Read Sensitivity Analysis of Turbine Engine Sustainment Aloud?

The average oral reading speed is 183 words per minute. This means it takes 2 hours and 24 minutes to read Sensitivity Analysis of Turbine Engine Sustainment aloud.

What Reading Level is Sensitivity Analysis of Turbine Engine Sustainment?

Sensitivity Analysis of Turbine Engine Sustainment is suitable for students ages 10 and up.

Note that there may be other factors that effect this rating besides length that are not factored in on this page. This may include things like complex language or sensitive topics not suitable for students of certain ages.

When deciding what to show young students always use your best judgement and consult a professional.

Where Can I Buy Sensitivity Analysis of Turbine Engine Sustainment?

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