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Health and Usage Monitoring Metrics Monitoring the Monitor

HM-1 Integrated Vehicle Health Management Committee
  • Aerospace Standard
  • ARP5783
  • Current
Published 2018-05-03 by SAE International in United States
This recommended practice applies to vibration monitoring systems for rotorcraft and fixed-wing drive trains, airframes, propulsion systems, electric power generators, and flight control systems. It addresses all aspects of metrics, including what to measure, how to measure, and how to evaluate the results.
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Software Interfaces for Ground-Based Monitoring Systems

HM-1 Integrated Vehicle Health Management Committee
  • Aerospace Standard
  • AS4831A
  • Current
Published 2018-05-03 by SAE International in United States
To establish a specification for software input and output interfaces for condition monitoring and performance programs used to monitor equipment from multiple manufacturers. The purpose of standardizing these interfaces is to improve operational flexibility and efficiency of monitoring systems as an aid to cost effectiveness (e.g., easier implementation).
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Health and Usage Monitoring System Data Interchange Specification

HM-1 Integrated Vehicle Health Management Committee
  • Aerospace Standard
  • AS5395
  • Current
Published 2018-05-03 by SAE International in United States
This document establishes the Rotorcraft Industry Technology Association (RITA) Health and Usage Monitoring System Data Interchange Specification. The RITA HUMS Data Interchange Specification will provide information exchange within a rotorcraft HUMS and between a rotorcraft HUMS and external entities.
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Design & Run-Time Information Exchange for Health-Ready Components

HM-1 Integrated Vehicle Health Management Committee
  • Aerospace Standard
  • JA6268_201804
  • Current
Published 2018-04-02 by SAE International in United States
This Surface Vehicle & Aerospace Recommended Practice offers best practices and a methodology by which IVHM functionality relating to components and subsystems should be integrated into vehicle or platform level applications. The intent of the document is to provide practitioners with a structured methodology for specifying, characterizing and exposing the inherent IVHM functionality of a component or subsystem using a common functional reference model, i.e., through the exchange of design-time data and the application of standard vehicle data communications interfaces. This document includes best practices and guidance related to the specification of the information that must be exchanged between the functional layers in the IVHM system or between lower-level components/subsystems and the higher-level control system to enable health monitoring and tracking of system degradation severity. The intent is to provide an IVHM system that can robustly report the degradation of a given component before it reaches the point where it goes outside its operational performance envelope by providing sufficient advance notice to deal with the issue. This document does not specify or address how each…
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Use of Health Monitoring Systems to Detect Aircraft Exposure to Volcanic Events

HM-1 Integrated Vehicle Health Management Committee
  • Aerospace Standard
  • AIR6212
  • Current
Published 2016-12-13 by SAE International in United States
This document collates the ways and means that existing sensors can identify the platform’s exposure to volcanic ash. The capabilities include real-time detection and estimation, and post flight determinations of exposure and intensity. The document includes results of initiatives with the Federal Aviation Administration (FAA), the European Aviation Safety Agency (EASA), the International Civil Aviation Organization (ICAO), Transport Canada, various research organizations, Industry and other subject matter experts. The document illustrates the ways that an aircraft can use existing sensors to act as health monitoring tools so as to assess the operational and maintenance effects related to volcanic ash incidents and possibly help determine what remedial action to take after encountering a volcanic ash (VA) event. Finally, the document provides insight into emerging technologies and capabilities that have been specifically pursued to detect volcanic ash encounters but are not yet a part of an airplane’s standard fit.
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Functional Specification of Miniature Connectors for Health Monitoring Purposes

HM-1 Integrated Vehicle Health Management Committee
  • Aerospace Standard
  • ARD6888
  • Current
Published 2016-07-19 by SAE International in United States
The purpose of this document is to specify the functional requirements for a miniature connector to be used for health monitoring purposes on aircraft (including harsh environments such as found in propulsion systems). It is actually a family of miniature connectors that is specified in this document for various uses (e.g., pin counts) and environments. This specification will be used by the SAE committee for connectors (AE-8C1) to study the feasibility of developing a dedicated connector standard.
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Helicopter Health and Usage Monitoring System Accelerometer Interface Specification

HM-1 Integrated Vehicle Health Management Committee
  • Aerospace Standard
  • AS5391A
  • Current
Published 2016-06-16 by SAE International in United States
Accelerometers are transducers, or sensors, that convert acceleration into an electrical signal that can be used for airframe, drive, and propulsion system vibration monitoring and analysis within vehicle health and usage monitoring systems. This document defines interface requirements for accelerometers and associated interfacing electronics for use in a helicopter Health and Usage Monitoring System (HUMS). The purpose is to standardize the accelerometer-to-electronics interface with the intent of increasing interchangeability among HUMS sensors/systems and reducing the cost of HUMS accelerometers. Although this interface was specified with an internally amplified piezoelectric accelerometer in mind for Airframe and Drive Train accelerometers, this does not preclude the use of piezoelectric accelerometer with remote charge amplifier or any other sensor technology that meets the requirements given in this specification. This SAE HUMS Accelerometer Interface Specification includes the minimal interface and performance requirements for commonality. Compliance with this Interface Specifications can be referenced in more comprehensive procurement and device specifications.
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IVHM Concepts, Technology and Implementation Overview

HM-1 Integrated Vehicle Health Management Committee
  • Aerospace Standard
  • ARP6803
  • Current
Published 2016-03-16 by SAE International in United States
This SAE Aerospace Recommended Practice (ARP) examines a comprehensive construct of an Integrated Vehicle Health Management (IVHM) capability. This document provides a top-level view of the concepts, technology, and implementation practices associated with IVHM. This keystone document of the SAE HM-1 Committee is not intended as a legal document and does not provide detailed implementation steps, but does address general implementation concerns and potential benefits. Figure 1 provides a document flow map of the documents currently in work or planned by the Committee. The documents shown below will provide the recommended practices for IVHM implementation. This document map reflects the current SAE IVHM document configuration as of the date of publication. Future documents that are released will be included in the flow map in future updates of this document. An indication of the scope of IVHM is diagrammed in Figure 2. When an organization decides to implement an IVHM capability as part of their product sustainment strategy, the decision must consider the business objectives and user perspectives driving the decision, the system architecture and design…
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Determination of Cost Benefits from Implementing an Integrated Vehicle Health Management System

HM-1 Integrated Vehicle Health Management Committee
  • Aerospace Standard
  • ARP6275
  • Current
Published 2014-07-07 by SAE International in United States
This ARP provides insights on how to perform a cost benefit analysis (CBA) to determine the return on investment that would result from implementing an integrated Health Management (HM) system on an air vehicle. The word “integrated” refers to the combination or “roll up” of sub-systems health management tools to create a platform centric system. The document describes the complexity of features that can be considered in the analysis, the different tools and approaches for conducting a CBA and differentiates between military and commercial applications. This document is intended to help those who might not necessarily have a deep technical understanding or familiarity with HM systems but want to either quantify or understand the economic benefits (i.e., the value proposition) that a HM system could provide. Prognostics is a capability within some HM systems that provides an estimation of remaining useful life (RUL) or time to failure and so Prognostic Health Management (PHM) is used where this predictive element exists. IVHM refers to an integrated vehicle level system deployed on a fleet of platforms and…
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Health and Usage Monitoring System, Blade Tracker Interface Specification

HM-1 Integrated Vehicle Health Management Committee
  • Aerospace Standard
  • AS5393
  • Current
Published 2009-10-21 by SAE International in United States
Blade trackers measure: (a) rotor blade height and (b) lead-lag for use in a Rotor Track and Balance (RT&B) function in a Health and Usage Monitoring System (HUMS). HUMS is a generic term for a system used to measure, monitor, process, and store information relating to the functioning and usage of an aircraft's on-board primary systems, including the engine(s).
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