The system selected to run the accelerated life test was a common, name-brand heat pump.
Validation of the Improved Material Properties through Accelerated Life Test
The fatigue test and accelerated life test demonstrated the same hoop strain characteristics as the hoop strain and hoop strain hardening tests.
Subjects include non-normal distributions that describe the Bayesian updating of atmospheric models, efficient uniform designs for mixture experiments in three and four components, designs of accelerated life tests
for periodic inspection with Burr Type III distributions, parameter estimation using Cressie-Read divergence measures with exponential grouped censored data, estimation of variance components of acceleration degradation models, production of the ration of the symmetric differences of order statistics, surface roughness measurements acquired by spatial statistics, Diallel crosses, and the characterization of distributions by conditional expectations of functions of generalized order statistics.
The accelerated life tests have as objective the determination of reliability indicators (usually the failure rate or the mean life), and are achieved by increasing the stress over the nominal margins, with the condition of maintaining the mechanisms responsible for the occurrence of failures.
This paper describes the accelerated life tests on the Puma IAR 330 helicopter blades with the purpose of determining the mean life in normal operating conditions.
To conduct the accelerated life tests a test plan has been made using the ALTA 7 software (it is the first, and still the only, commercially available software package designed expressly for quantitative accelerated life testing data analysis).