Transporte

Transporte

Identification of the key design inputs for the FEM-based preliminary sizing and mass estimation of a civil aircraft wing box structure
- FEM-based preliminary structural sizing has been successfully carried out for a typical single-aisle wing box structure using MSC Nastran, by considering various load cases representing typical...
Minimum-mass optimisation for high-rate manufacture of damage tolerant and unbuckled composite components
15/03/2022 - A significant increase in the rate of composite manufacture is needed to meet demand for short-range commercial aircraft. The enabling automated manufacturing processes can, however, induce...
Synthesis of Crosslinkable Polyetherimide and Application as an Additive in 3D Printing of Photopolymers
05/01/2022 - Three-dimensional printing of photopolymers is now technically mature and economical, but its widespread use is hampered by the limited availability of resins tailored for specific industrial...
A new many-objective aerodynamic optimization method for symmetrical elliptic airfoils by PSO and direct-manipulation-based parametric mesh deformation
- A new many-objective aerodynamic optimization method is proposed to design the distinctive symmetrical elliptic airfoil applied on the canard rotor wing aircraft with special requirements on both...
Impact of non-latching booms on a nanosatellite attitude control system
- The Scintillation Prediction Observations Research Task (SPORT) nanosatellite is being developed in partnership with the National Aeronautics and Space Administration agency and the Brazilian...
UAV Path Planning and Collision Avoidance in 3D Environments Based on POMPD and Improved Grey Wolf Optimizer
- Due to the complexity and uncertain factors of the environment, a 3D path planning algorithm is urgently needed. This paper presents a 3D optimal feasible flight path generation and collision...
Detection of corrosion under insulation on aerospace structures via pulsed eddy current thermography
- Corrosion degradation mechanics play a significant role in the safe operability and availability of aircraft components. To defend against corrosion, coating systems and insulation are used on...
Cutting force and specific energy for rotary ultrasonic drilling based on kinematics analysis of vibration effectiveness
- Rotary ultrasonic drilling (RUD) has become an effective approach for machining advanced composites which are widely using in the field of aeronautics. The cutting kinematics and the corresponding...
Experimental investigation on ice-breaking performance of a novel plasma striker
- Aircraft icing has long been a plague to aviation for its serious threat to flight safety. Recently, researches about a newly proposed deicing method based on Plasma Synthetic Jet Actuator (PSJA)...
Binders Used for the Manufacturing of Composite Materials by Liquid Composite Molding
27/12/2021 - Binders, or tackifiers, have become widespread in the production of new composites materials by liquid composite molding (LCM) techniques due to their ability to stabilize preforms during laying-up...
Effect of Fibre Orientation on Impact Damage Resistance of S2/FM94 Glass Fibre Composites for Aerospace Applications: An Experimental Evaluation and Numerical Validation
27/12/2021 - This study aims to investigate the influence of fibre orientation and varied incident energy levels on the impact-induced damage of S2/FM94, a kind of aerospace glass fibre epoxy/composite regularly...
Simulation of Landing and Take-Off Noise for Supersonic Transport Aircraft at a Conceptual Design Fidelity Level
- The German Aerospace Center has launched an internal project to assess the noise impact associated with supersonic transport aircraft during approach and departure. A dedicated simulation process is...
Structural Batteries for Aeronautic Applications—State of the Art, Research Gaps and Technology Development Needs
- Radical innovations for all aircraft systems and subsystems are needed for realizing future carbon-neutral aircraft, with hybrid-electric aircraft due to be delivered after 2035, initially in the...
Tribological performance and phase transition of MAX-phase/YSZ abradable seal coating produced by air plasma spraying
- MAX-phase has excellent high-temperature lubrication performance, which has the potential to be used as the abradable seal coating in aircraft engine combustion chamber. Various concentrations of...
Intelligent Fault-Tolerant Control for AC/DC Hybrid Power System of More Electric Aircraft
- This paper presents a novel intelligent fault-tolerant control method for a kind of more electric aircraft AC/DC hybrid electrical power system, in order to ensure the safe operation of the engine...
Wing Structural Model for Overall Aircraft Design of Distributed Electric Propulsion General Aviation and Regional Aircraft
- In the context of reducing the environmental footprint of tomorrow’s aviation, Distributed Electric Propulsion (DEP) has become an increasingly interesting concept. With the strong coupling...
Low-Noise Design of Medium-Range Aircraft for Energy Efficient Aviation
- Promising low-noise aircraft architectures have been identified over the last few years at DLR. A set of DLR aircraft concepts was selected for further assessment in the context of sustainable and...
Increasing the Efficiency of Aircraft Ground Handling—A Case Study
- This research was focused on increasing the efficiency of aircraft ground handling at the airport. The main goal of the research was to improve the individual processes that are part of the aircraft...
On the Use of Carbon Cables from Plastic Solvent Combinations of Polystyrene and Toluene in Carbon Nanotube Synthesis
21/12/2021 - For every three people on the planet, there are approximately two Tonnes (Te) of plastic waste. We show that carbon recovery from polystyrene (PS) plastic is enhanced by the coaddition of solvents to...
Decadal changes in global phytoplankton compositions influenced by biogeochemical variables
- The global environmental changes owing to natural and anthropogenic influences are challenging the structure and functioning of the ocean ecosystem. The complex processes interacting within the...
Experimental study of basalt fiber/steel hybrid laminates under low-velocity impact
- Due to their excellent impact resistance, fibre-metal laminates are widely utilised in modern engineering industries such as the construction of aircraft, vehicles and ships. In this study, the...