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RISExperimental Investigation and Simulation of a Boeing 747 Auxiliary Power Unit
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Auxiliary power units (APUs) are a major driver of maintenance on civil aircraft. However, experimental data and performance simulations are rarely seen in public domain literature. While there is recourse to aircraft ...
Boeing 737-400 Passenger Air Conditioner Control System Model for Accurate Fault Simulation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The aircraft environmental control system (ECS) is a highly integrated and complex system. The passenger air conditioner (PACK) is the heart of the ECS and has been reported as a key driver of unscheduled maintenance by ...
Evaluation of Component Level Degradation in the Boeing 737-800 Air Cycle Machine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An aircraft is composed of several highly integrated and complex systems that enable it to deliver safe and comfortable flight. Its functionality is therefore strongly dependent on the safe operation of these systems within ...
Assessment of Heat Exchanger Degradation in a Boeing 737-800 Environmental Control System
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: There are a number of systems on an aircraft working together, in harmony, to produce safe and trouble free flight. The environmental control system (ECS) is one of these systems, and its failure is a major contributor to ...
A Preliminary Design Tradeoff Study for an Advanced Propulsion Technology Rotorcraft at Mission Level
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper aims to present an integrated rotorcraft (RC) multidisciplinary simulation framework, deployed for the comprehensive assessment of combined RC–powerplant systems at mission level. The proposed methodology ...
Computational Fluid Dynamics Investigation of a Core-Mounted Target-Type Thrust Reverser—Part 2: Reverser Deployed Configuration
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Core-mounted target-type thrust reverser (CMTTTR) design was proposed by NASA in the second half of the 90 s. NASA carried out several experiments at static conditions, and their acquired results suggested that the performance ...
Computational Fluid Dynamics Investigation of a Core-Mounted Target-Type Thrust Reverser—Part 1: Reverser Stowed Configuration
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: During the second half of the 90 s, NASA performed experimental investigations on six novel thrust reverser (TR) designs; core-mounted target-type thrust reverser (CMTTTR) design is one of them. To assess the CMTTTR ...
Multi objective Optimization of Conceptual Rotorcraft Powerplants: Trade off Between Rotorcraft Fuel Efficiency and Environmental Impact
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper aims to present an integrated rotorcraft conceptual design and analysis framework, deployed for the multidisciplinary design and optimization of regenerative powerplant configurations in terms of rotorcraft ...
A Multidisciplinary Approach for the Comprehensive Assessment of Integrated Rotorcraft–Powerplant Systems at Mission Level
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents an integrated methodology for the comprehensive assessment of combined rotorcraft–powerplant systems at mission level. Analytical evaluation of existing and conceptual designs is carried out in terms ...
Multi objective Optimization of a Regenerative Rotorcraft Powerplant: Trade off Between Overall Engine Weight and Fuel Economy
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A computationally efficient and cost effective simulation framework has been implemented to perform design space exploration and multiobjective optimization for a conceptual regenerative rotorcraft powerplant configuration ...