Downloaded from https://www.everyspec.com ADS-79D-HDBK CONTENTS PARAGRAPH PAGE APPENDIX A FATIGUE LIFE MANAGEMENT .....................................................................34 A.1 SCOPE .................................................................................................................34 A.2 APPLICABLE DOCUMENTS ...........................................................................34 A.3 DEFINITIONS ....................................................................................................35 A.4 INTRODUCTION ...............................................................................................35 A.5 POTENTIAL APPLICATIONS ..........................................................................36 A.5.1 Updating service usage spectrums .......................................................................36 A.5.2 Managing service life of CSI components ..........................................................37 A.5.3 Component remediation ......................................................................................37 A.5.4 Managing service life of damage tolerant structure ............................................38 A.5.5 Maximizing FLM benefits ...................................................................................39 A.6 RELIABILITY GUIDANCE ..............................................................................39 A.6.1 Reliability analysis ..............................................................................................39 A.6.2 Evaluation of reliability when usages are monitored and fatigue strength and flight loads are statistically evaluated ......................................................39 A.6.3 Evaluation of reliability when loads are monitored and fatigue strengths are statistically modeled .................................................................40 A.6.4 Evaluation of reliability when usages are monitored and design damages applied ..................................................................................40 A.6.5 Evaluation of reliability for usage spectrum update ............................................40 APPENDIX B REGIME RECOGNITION/FLIGHT STATE CLASSIFICATION WITH VALIDATION OF REGIME RECOGNITION ALGORITHMS ......................41 B.1 SCOPE .................................................................................................................41 B.1.1 Scope ...................................................................................................................41 B.2 REFERENCES AND APPLICABLE DOCUMENTS .......................................41 B.2.1 References ...........................................................................................................41 B.2.2 Applicable documents .........................................................................................41 B.2.2.1 Government documents .......................................................................................41 B.2.2.2 Other Government documents, drawings, and publications ................................42 B.3 DEFINITIONS ....................................................................................................42 B.4 GENERAL GUIDANCE .....................................................................................42 B.5 DETAIL GUIDANCE .........................................................................................50 B.5.1 Flight regime definition .......................................................................................50 B.5.1.1 Aircraft configuration ..........................................................................................51 B.5.1.2 Flight environment ..............................................................................................53 B.5.2 Digital source collector design for structural usage monitoring .........................53 B.5.2.1 Onboard flight state sensing ................................................................................53 B.5.2.2.
Flight state sampling rate .....................................................................................54 B.5.2.3 Classification of flight regimes ...........................................................................55 B.5.2.4 Component lifecycle tracking ..............................................................................56 B.5.2.5 Data compromise recovery ..................................................................................56 B.5.3 Digital source collector validation for structural usage monitoring ....................57 B.5.3.1 Algorithm validation methodology .....................................................................57 v