Search Results

SAE EDGE Research Reports provide examinations significant topics facing mobility industry today including Connected Automated Vehicle Technologies Electrification Advanced Manufacturing

Two Events. One Location. Greater Exposure. Exhibit or Sponsor today at the AeroTech conference, co-located with the AeroMat event.

Appendix C identifies other military and non-government standards for flat washers, helical and toothed lock washers. It identifies the materials covered by each standard with a comparison of those dimensions with those SAE J2655 washers.

A PIN is normally required for all military applications and provides a useful means of communicating fastener requirements to suppliers and manufacturers in a very succinct manner.

Furthermore, the use of red lighting should not be considered for new design and included within this document to support requirements for existing military aircraft that still operate with this system of lighting.

This document covers the same lubricating oil requirements as the former military specification MIL-L-6082. Users should consult their airframe or engine manufacturers’ manuals for the latest listing of acceptable lubricants.

“Commercial Vehicle” is defined as a Class 1 through 8 on-highway or on/off–highway truck, tractor-trailer, or bus whose primary purpose is to transport goods or people and excludes any such vehicles intended solely for use in military, farming, or construction applications. “Vehicle Dynamics” is defined as the ride, handling, stability, or load carrying ability of a truck, tractor-trailer, or bus, and excludes the aerodynamics of any such vehicles.

Beyond Boundaries: Elevating Aerospace Design With Fluorosilicones MEMS-Based Accelerometer to Measure Microgravity for In-Orbit Manufacturing Optimizing IoMT Device Battery Life With Emulation and Profiling Software Improving Battery Design for eVTOL Aircraft With Simulation Embedded Processing Advancements Enable Smarter, SWAP-Optimized Avionics Displays and Computers Space Lasers: Aiming Towards Next Leap in Global Communications To 6G and Beyond: Penn Engineers Unlock the Next Generation of Wireless Communications Testing Military-Grade Adhesive in Extreme Loading Conditions Military performance requirements for adhesives have been traditionally derived to fulfill niche defense needs in harsh operational environments with little consideration for dual-use commercial potential.

This article introduces an electric-to-aerodynamic analogy that models the lift, drag, and thrust of an airplane, a helicopter, a propeller, and a flapping bird. This model is intended to complement the recently published aerodynamic equation of state for lift, drag, and thrust of an engineered or a biological flyer by means of an analogy between this equation and Ohm’s law.

Abstract This article introduces an advanced state-of-charge (SOC) estimation method customized for 28 V LiFePO4 (LFP) helicopter batteries. The battery usage profile is characterized by four consecutive current pulses, each corresponding to distinct operational phases on the helicopter: instrument check, key-on, recharge, and emergency power output stages. ...The battery usage profile is characterized by four consecutive current pulses, each corresponding to distinct operational phases on the helicopter: instrument check, key-on, recharge, and emergency power output stages. To establish a precise battery model for LFP cells, the parameters of a second-order equivalent-circuit model are identified as a function of C-rate, SOC, and temperature.

This document establishes age limits for acceptance of hose and hose assemblies containing elastomeric materials for use in aircraft, space vehicles, missiles and component assemblies thereof at time of delivery to the contractor, procuring activity, or contracting officer. This document does not establish limitations on storage times for military/civil activities nor operating life.

Some successful applications include: Aircraft engine combustor development rig tests (aviation jet fueled) Stationary source combustor development rig tests (natural gas and diesel fueled) Afterburning military engine tests (aviation jet fueled) Internal combustion aircraft engine diagnostics (AVGAS fueled) Each application may be characterized by very different measured emissions levels (parts per million versus percent by volume) but this common approach solves the same basic combustion chemical equation.

This first edition of Volume II publishes the framework for generating and analyzing the data so that material sponsors can generate the right data, knowing how it will be analyzed by the Battelle Memorial Institute. MMPDS-2024 Volume II Process Intensive Materials and Joining Technologies does not currently have any material properties, focusing on additive manufacturing of metallic materials. MMPDS-2024 Volume II is brand new and will be focused on non-conventional processes and will be published each year moving forward. Volume I: Conventional Materials and Joint Allowables.

The Metallic Materials Properties Development and Standardization MMPDS-2024 supersedes MMPDS-23 and prior editions of the MMPDS Handbook as well as all editions of MIL-HDBK-5, Metallic Materials and Elements for Aerospace Vehicle Structures Handbook that were maintained by the U.S. Air Force. The last edition, MIL-HDBK-5J was cancelled by the U.S. Air Force in March 2006. This document contains design information on the mechanical and physical properties of metallic materials and joints commonly used in aircraft and aerospace vehicle structures. All information contained in this Handbook has been reviewed and approved using a standardized process. The development and ongoing maintenance process involves certifying agencies, including the FAA, DoD, and NASA, and major material suppliers and material users worldwide. The information and procedures in this Handbook are continuously reviewed and modified or removed as determined to be appropriate.