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Viewing 1 to 30 of 3481
Event
2014-10-05
The SAE Chassis Brake Standards Committee plays a central role in the establishment of essential consensus-based industry standards. Each committee develops a full suite of standards that are related to quality, durability, environmental effects, and safety. The development or revision of SAE Standards need to incorporate the global perspective as a key success factor. This panel presentation and discussion will provide a direct insight into recent developments and activities from the SAE Chassis Brake Standards Committees. Additionally, the panel will include different regions and Standard Development Organizations including Asia-Pacific, Europe, and Latin America. The panel will provide an excellent platform to detect opportunities for integration and harmonization among SDOs from around the world.
Event
2014-09-25
This session shall include papers related to military manned aircraft and air vehicle electrical power management and distribution (relays, circuit breakers, SSPCs), control & protection, arc fault protection, power conversion (AC/DC, DC/DC/ AC/AC) and power conditioning. AC (fixed & variable frequency) and DC (28 VDC and 270 VDC) systems are planned for discussion.
Event
2014-09-25
This session shall include papers related to military manned aircraft and air vehicle electrical power management and distribution (relays, circuit breakers, SSPCs), control & protection, arc fault protection, power conversion (AC/DC, DC/DC/ AC/AC) and power conditioning. AC (fixed & variable frequency) and DC (28 VDC and 270 VDC) systems are planned for discussion.
Event
2014-09-24
This session is dedicated to topics dealing with the integration between the Powerplant system & the airframe. This session covers the physical & functional interfaces between the different components, and their aerodynamic, thermal, structural, loads & Dynamic integration. This session covers: the Engine, Nacelle, Pylon & associated local sub systems (Fuel, Bleed, Oil, Fire, Etc).
Event
2014-09-24
This session focuses on the use of the engines as novel flight effectors, including integrated control of flight path and engines, strategies and architectures for improved flight safety and fuel efficiency, engine and flight control interfaces, novel flight and engine control requirements and restrictions due to integration, flight and propulsion control law design, and model based control law design and validation.
Event
2014-09-24
This session focuses on the use of the engines as novel flight effectors, including integrated control of flight path and engines, strategies and architectures for improved flight safety and fuel efficiency, engine and flight control interfaces, novel flight and engine control requirements and restrictions due to integration, flight and propulsion control law design, and model based control law design and validation.
Event
2014-09-23
Event
2014-09-23
Technical Paper
2014-09-16
Darcy Allison, Edward Alyanak
Abstract For the design process of the class of aircraft known as an efficient supersonic air vehicle, particular attention must be paid to the propulsion system design as a whole including installation effects integrated into a vehicle performance model. The propulsion system assumed for the efficient supersonic air vehicle considered in this paper is a three-stream variable cycle engine. A computational model has been built with the Numerical Propulsion System Simulation (NPSS) software to analyze this engine. This engine model was based on the generic adaptive turbine engine model developed at the turbine engines division of the US Air Force Research Laboratory. Along with this variable cycle NPSS model, a three-ramp external compression inlet model meant for conceptual design has been developed. This model will be used to capture inlet installation effects, including those attributable to angle of attack changes at supersonic Mach numbers. These models have been integrated into the Service ORiented Computing EnviRonment (SORCER), which enables parallel execution of the installed NPSS model to rapidly evaluate a full flight envelope.
Technical Paper
2014-09-16
Christine Ross, Michael Armstrong, Mark Blackwelder, Catherine Jones, Patrick Norman, Steven Fletcher
Abstract The Turboelectric Distributed Propulsion (TeDP) concept uses gas turbine engines as prime movers for generators whose electrical power is used to drive motors and propulsors. For this NASA N3-X study, the motors, generators, and DC transmission lines are superconducting, and the power electronics and circuit breakers are cryogenic to maximize efficiency and increase power density of all associated components. Some of the protection challenges of a superconducting DC network are discussed such as low natural damping, superconducting and quenched states, and fast fault response time. For a given TeDP electrical system architecture with fixed power ratings, solid-state circuit breakers combined with superconducting fault-current limiters are examined with current-source control to limit and interrupt the fault current. To estimate the protection system weight and losses, scalable models of cryogenic bidirectional current-source converters, cryogenic bidirectional IGBT solid-state circuit breakers (CBs), and resistive-type superconducting fault current limiters (SFCLs) are developed to assess how the weight and losses of these components vary as a function of nominal voltage and current and fault current ratings.
Technical Paper
2014-09-16
Ruiqiang Lu
Abstract With the development of many new technologies in aircraft manufacturing area and the increasing competition of the global market, aircraft manufacturing enterprises have to reduce their production time and increase the cost-efficiency, with the consideration of high speed response to the changes inside enterprises or in the environment. Production scheduling is a significant process in manufacturing, especially for complicated part or component processing. This paper proposes an agent based multi-objective optimization approach for production scheduling based on Genetic Algorithms. It aims to minimize the total production cost and simultaneously reducing the emission released during production, and the delivery time and equipment constraints are satisfied as well. The new approach is tested in a virtual plant for turbine blade manufacturing. Experimental results show that a group of Pareto optimal solutions are obtained, which can be provided to the decision maker of the manufacturer to select according to different actual conditions.
Standard
2014-09-16
This SAE Aerospace Recommended Practice (ARP) defines a method of numbering aricraft engine cylinders.
Standard
2014-09-16
This Aerospace Standard establishes the details of the maximum and minimum thread profile and tolerance classes for the metric 60° screw threads recommended for use in the aerospace industry for metric module bolts and nuts.
WIP Standard
2014-09-12
This document covers the performance requirements for solid dry film lubricants, air dried, or heat cured for use in aerospace applications. These lubricants are intended to prevent galling, and may be capable of remaining effective for extended periods of time after exposure to extreme environmental conditions.
Viewing 1 to 30 of 3481

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