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Journal Article

Conceptual Design, Material, and Structural Optimization of a Naval Fighter Nose Landing Gear for the Estimated Static Loads

2019-12-13
Abstract The Naval Nose Landing Gear (NLG) structural assembly consists of components with complex structural geometry and critical functionalities. The landing gear components are subjected to high static and dynamic loads, so they must be appropriately designed, dimensioned, and made by materials with mechanical characteristics that meet high strength, stiffness, and less weight requirements. This article contributes to the shape, size, and material optimization for the NLG of a supersonic naval aircraft for the estimated static loads. The estimated modal frequency values of the NLG assembly using Finite Element Analysis (FEA) software were compared with available Ground Vibration Test data of an aircraft to literally prove the accuracy and suitability of finite element (FE) model that can be used for any further analysis.
Journal Article

ERRATA

2020-05-12
Abstract ERRATUM
Standard

Aerospace Epoxy Technologies

2019-04-05
WIP
AIR7993
To detail the different epoxy types available for different aerospace applications which require different temperature ranges. Explain incoming/final inspection requirements and storage requirements. Examine the epoxy chemical make up with explanations of purpose in performance.
Standard

FIBER OPTIC DESIGN GUIDELINES FOR AEROSPACE

2018-10-18
WIP
AIR8448
This document provides guidance on key areas of system design to achieve high performance and high reliability for mission critical aerospace systems and platforms. The fundamental element of a reliable, functional aerospace fiber optic application is the system design. It is the system designers’ task to define the methods, components, installation and processes supporting the transmission of the optical signal through the platform, while providing a physical layer with the necessary performance, reliability, and readiness for the application.
Standard

IEEE-1394 Beta PHY Enhancements

2022-05-25
WIP
AS5643/3
Define IEEE-1394 Beta PHY Enhancements that drive faster 1394 port connects and increased robustness. These enhancements include Detect loss of descrambler synchronization, Fast-ReTrain, Fast Power-on Re-connect, Fast Connection Tone Debounce and Programmable invalidCount.
Standard

S200 Copper Media Interface Characteristics Over Extended Distances

2022-05-25
WIP
AS5643/2
This SAE Aerospace Standard (AS) establishes guidelines for the use of IEEE-1394-2008 Beta (formerly IEEE-1394b) as a data bus network in military and aerospace vehicles. It encompasses the data bus cable and its interface electronics for a system utilizing S200 over copper medium over extended lengths. This document contains extensions/restrictions to AS5643/1 to support S200 data rate. This document does not identify specific environmental requirements (electromagnetic compatibility, temperature, vibration, etc.); such requirements will be vehicle-specific and even LRU-specific. However, the hardware requirements and examples contained herein do address many of the environmental conditions that military and aerospace vehicles may experience. One should reference the appropriate sections of MIL-STD-461E for their particular LRU, and utilize handbooks such as MIL-HDBK-454A and MIL-HDBK-5400 for guidance.
Standard

Converged Aerospace Integrated Network (CAIN)

2015-04-14
WIP
AS6509
Fibre Channel is the primary avionics bus on many modern military aircraft. It is also the defined High-Speed bus for MIL-STD-1760E weapons applications. Profiled Ethernet networks are the primary avionics bus in many commercial aircraft and Commercial Ethernet is an ever increasing presence in modern military aircraft as well. This network standard is a convergence of Fibre Channel and Ethernet into a unified network standard which will provide a seamless approach to integrating end systems from either technology into a merged network structure. This work is based upon the commercial data storage market industry’s work on the Converged Data Storage Network or FCoE (Fibre Channel over Ethernet). This effort will look at profiling the FCoE work done in the commercial industry and adding information where necessary to affect a networking standard that will seamlessly integrate end systems from Commercial Ethernet, Fibre Channel, or FCoE enhanced devices.
Standard

Aerospace TSN Profile

2019-10-24
WIP
AS6675
Develop a profile of the TSN set of standards that is applicable to Avionics use cases, including AS6509 CAIN
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