NEW CRITERION FOR TRENDS DISTINCTION OF
BIDIMENTIONAL RETRIEVAL OF REGISTRATION PARAMETERS OF GAS TURBINE ENGINES
TECHNICAL STATE
V.F.
Design is executed and
application results of methods of two-dimensional trend control conformably to
a problem of technical state diagnosing of gas turbine engine during continuous
exploitation. Two trend statistics, difference and new two-dimensional Hald –Abbe type, which allow to determine the fact of trends distinction in researched
time series at a basic hypothesis about presence and identity of trends are
offered. For difference statistics property are determined in an analytical
mode, and for offered new DR-statistics - by a method of statistical modeling.
The example two-dimensional trend control for real data of gas turbine engine
operation is presented.
Key words: diagnostics, statistical mode,
technical state, trend control.