Downloaded from https://www.everyspec.com ADS-79D-HDBK CONTENTS FIGURE PAGE 5 CBM development for new acquisition ...............................................................33 B-1 Army flow of data for regimes ............................................................................43 B-2 Regime recognition processes with usage spectrum update ................................44 B-3 Regime recognition processes with individual component fatigue damage assessment ..........................................................46 B-4 Loads monitoring and estimation processes ........................................................48 B-5 Fatigue life management usage and load validation loops ..................................51 B-6 Effect of data rate on vertical acceleration (EXAMPLE ONLY) .......................55 C-1 Current approach of determining inspection interval ..........................................67 C-2 Effect of inspection time on risk reduction .........................................................68 C-3 Illustration of damage progression and effect of inspections ..............................69 D-1 Schematic of prognostic accuracy .......................................................................76 D-2 Example of color code score card .......................................................................81 D-3 Example of an input bevel gear fault ...................................................................84 D-4 CI development flow diagram .............................................................................85 D-5 An example of a typical schematic of intermediate gear box used to understand physical parameters .........................................................86 D-6 An example of method of physical and functional modeling ..............................87 D-7 Example of typical signal processing steps from data collection To CI comparison ...........................................................................................88 D-8 An example correlation of fault dimension and CI value ....................................89 D-9 Two examples of CI plots to compare detectability ............................................90 D-10 An example of a framework for model based development of CIs .....................92 D-11 Comparison of AH-64D aft hanger bearing faulted spectra ................................96 D-12 Damaged ball from 01-05270 aft hanger bearing ................................................97 D-13 AH-64D aft hanger bearing energy .....................................................................97 D-14 Aft hanger bearing energy CI (saltwater corrosion fault) ...................................98 D-15 Aft hanger bearing energy CI (coarse sand fault) ...............................................98 D-16 Aft hanger bearing energy CI (fine sand fault) ...................................................99 E-1 Sensor response characteristics .........................................................................103 G-1 GE T700 Turboshaft Engine .............................................................................115 G-2 Cross Section of T700 .......................................................................................115 G-3 Auxiliary power unit (reproduced from TM 55-2835-205-23) .........................116 G-4 Progression of turbine engine monitoring technology ......................................118 G-5 HUMS time scale ..............................................................................................125 H-1 LRU electrical subsystems ................................................................................138 H-2 Diagnostic using BIT tests and embedded sensor .............................................142 I-1 Information gain as function of sample size ......................................................150 I-2 CI data before and after gear replacement .........................................................158 I-3 CI data before and after gear replacement .........................................................158 I-4 CI data before and after gear replacement .........................................................158 xiv