Results 71 to 80 of about 60,070 (312)

Propulsion System for BWB Configurations in the Agile project [PDF]

open access: yes, 2018
The focus of the present paper is the preliminary design of the propulsion and on-board systems and their integration for a Blended Wing Body (BWB) aircraft.
Luca Boggero   +13 more
core   +1 more source

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

open access: yesAdvanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

Numeral simulation of droplet evaporation-atomization under hot air flow

open access: yesCase Studies in Thermal Engineering
In the field of cerium oxide preparation by spray pyrolysis, understanding the droplet atomization-evaporation process is an innovative and promising concept.
Chao Lv   +5 more
doaj   +1 more source

High accuracy robust attitude tracking control application on quadrotor UAV with the prescribed performance

open access: yesAdvances in Mechanical Engineering, 2020
In this paper, a high accuracy attitude tracking control is presented for a quadrotor unmanned aerial vehicle (UAV) under the model uncertainties and external unpredictable disturbances by using a robust feedback control method.
Jingxin Dou   +2 more
doaj   +1 more source

Novel orbits of Mercury, Venus and Mars enabled using low-thrust propulsion [PDF]

open access: yes, 2014
Exploration of the inner planets of the Solar System is vital to significantly enhance the understanding of the formulation of the Earth and other planets.
Yen, Chen-wan   +2 more
core   +1 more source

A Dislocation Perspective on Strength and Toughness in Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

Viability study of sailing propulsion combined with a conventional system [PDF]

open access: yes, 2011
For many years now, sails have been used as a propulsion system. At present, they are restricted to recreational/sport crafts since the appearance of the first steam vessels in the beginning of the 19 th century.
Pérez Arribas, Francisco Lázaro   +3 more
core   +1 more source

Design and Analysis of Compression–Torsion Coupling Metamaterials Using the Golden Section Method

open access: yesAdvanced Engineering Materials, EarlyView.
A novel compression–torsion metamaterial is engineered using inclined rods and symmetry breaking. To optimize its torsional performance, the golden section method is employed. The mechanical response of the metamaterial is validated through both numerical analysis and experimental validation.
Amirhossein Hassani, Sara Bagherifard
wiley   +1 more source

Key Technologies for the Application of the Electric Propulsion System on the GEO Satellite Platform

open access: yesMeasurement + Control, 2008
Applying the electric propulsion system on GEO satellite in the future is an inevitable trend in China. For this purpose, a lot of problems should be solved not only thruster itself but also the whole system.
Bian Bingxiu, Wei Yanming, Li Yong
doaj   +1 more source

Undulating propulsion system design

open access: yes, 2009
Selected Proceedings from the 13th International Congress on Project Engineering. (Badajoz, July 2009)
Rodríguez-García, JuanDeDios   +3 more
openaire   +2 more sources

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