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This SAE Aerospace Information Report (AIR) provides guidance on the definition, development, integration, qualification/certification, and deployment of Structural Health Monitoring (SHM) technologies applied to commercial and military rotorcraft. Increased implementation of SHM is believed to have numerous potential benefits, including enhanced operational safety and reduced maintenance burden. The focus is on augmenting ARP6461 to address specific unique aspects of implementing SHM on rotorcraft without unnecessarily duplicating guidance already contained in the ARP that is generally applicable to both fixed-wing and rotary-wing aircraft. For the purpose of this document, SHM is defined as “the process of acquiring and analyzing data from on-board sensors in order to determine the health of a structure”. Note that this is irrespective of whether the on-board sensors are a permanent or temporary installation.

Perform a model based system engineering gap analysis of a Structural Damage Detection System complementary to Structural Health Management based on selected generic use cases covering E2E product life cycle (design, development, manufacturing, integration, deployment and operation).

This SAE Aerospace Information Report (AIR) provides information regarding guidance when utilizing an SHM system for “airworthiness credits”. This document is applicable to civil fixed-wing aerospace airframe structural applications where stakeholders are seeking guidance on the approvals of structural health monitoring (SHM) technologies for aircraft health management applications. While this initial guidance is from the United States’ Federal Aviation Administration (FAA), Technical Innovation Policy Branch, other regulatory agencies may elect to add requirements as needed. Future revisions to this document could include the guidance from other regulatory agencies. This document does not teach how to design an SHM function, how to do a safety or risk analysis, prescribe hardware or software assurance levels, or answer the question “how much mitigation and evidence are enough.”

This SAE Aerospace Information Report (AIR) is prepared for stakeholders seeking information about the evolution, integration, and approval of SHM technologies for military aircraft systems. The report provides this information in the form of (a) two military organizations’ perspectives on requirements, and (b) general SHM challenges and industry perspectives. The report only provides information to generate awarness of prespectives for military aircraft and, hence, assists those who are involved in developing SHM systems understanding the broad range of regulations, requirements, and standards published by military organizations that are available in the public domain from the military organizations.

This document is applicable to civil aerospace airframe structural applications where stakeholders are seeking guidance on the definition, development and certification of Structural Health Monitoring (SHM) technologies for aircraft health management applications. For the purpose of this document, SHM is defined as “the process of acquiring and analyzing data from on-board sensors to evaluate the health of a structure.” The suite of on-board sensors could include any presently installed aircraft sensors as well as new sensors to be defined in the future.

This document is applicable to civil aerospace airframe structural applications where stakeholders are seeking guidance on the definition, development, and certification of structural health monitoring (SHM) technologies for aircraft health management applications. Inputs to the structural health management are obtained from SHM equipment and/or from onboard sensors, delivering the detection and characterization of damage, load, or environmental parameters for operational and damage monitoring. For the purpose of this document, SHM is defined as “the process of acquiring and analyzing data from on-board sensors to characterize the health of a structure.” The suite of on-board sensors could include any presently installed aircraft sensors, as well as new sensors to be defined in the future.

The nature of SHM data differs from that seen in traditional NDE applications in that the position of SHM sensors is fixed and that SHM data will be available much more frequently (if not continuously) over time.