Results 21 to 30 of about 305,654 (266)

Principle and Control of Active Engine Mount Based on Magnetostrictive Actuator

open access: yesChinese Journal of Mechanical Engineering, 2022
Engine mount system affects the automobile NVH performance. Active mounts would achieve excellent vibration isolation and relative displacement control performance in a broad frequency bandwidth by outputting controlled force to the mounting system.
Zhiyuan Si   +3 more
doaj   +1 more source

Modelling of a SMA Blade Twist System Suited for Demonstration in Wind Tunnel and Whirl Tower Plants

open access: yesApplied Sciences, 2023
In this work, the modeling of a demonstrator of a morphing system aimed at altering the twist of a rotorcraft blade is presented. The device was conceived for two different representative environments: the wind tunnel plant of the University of Bristol ...
Salvatore Ameduri   +7 more
doaj   +1 more source

Structure-Integrated Thin-Film Supercapacitor as a Sensor

open access: yesSensors, 2022
Today, aircraft composite structures are generally over-dimensioned to avoid catastrophic failure by unseen damages. This leads to a higher system weight and therefore an unwanted increase in greenhouse gas emissions.
Jan Petersen   +3 more
doaj   +1 more source

Adaptive Index Structures [PDF]

open access: yes, 2002
Traditional indexes aim at optimizing the node accesses during query processing, which, however, does not necessarily minimize the total cost due to the possibly large number of random accesses. In this paper, we propose a general framework for adaptive indexes that improve overall query cost. The performance gain is achieved by allowing index nodes to
Yufei Tao 0001, Dimitris Papadias
openaire   +1 more source

A controlled recipient evacuation process to form composite profiles from flat multi-angle prepreg stacks – infrastructure and C-profile verification

open access: yesAdvanced Manufacturing: Polymer & Composites Science, 2019
Single-diaphragm forming is a cost saving alternative to labor-intensive ply-by-ply layup. This paper reports on forming of flat uncured multi-angle prepreg stacks into C shape.
E. Kappel, M. Albrecht
doaj   +1 more source

Automated, Quality Assured and High Volume Oriented Production of Fiber Metal Laminates (FML) for the Next Generation of Passenger Aircraft Fuselage Shells

open access: yesScience and Engineering of Composite Materials, 2019
The use of fiber-metal laminates (FML) allows for substantial advantages over a fuselage skin made of monolithic aluminum materials. Glass fiber prepreg reinforced aluminium is characterized by high damage tolerance capabilities, supporting the ...
Ucan Hakan   +14 more
doaj   +1 more source

Status and Perspectives of Commercial Aircraft Morphing

open access: yesBiomimetics, 2022
In a previous paper, the authors dealt with the current showstoppers that inhibit commercial applicability of morphing systems. In this work, the authors express a critical vision of the current status of the proposed architectures and the needs that ...
Michelangelo Giuliani   +4 more
doaj   +1 more source

Hierarchical Adaptive Structural SVM for Domain Adaptation [PDF]

open access: yesInternational Journal of Computer Vision, 2016
A key topic in classification is the accuracy loss produced when the data distribution in the training (source) domain differs from that in the testing (target) domain. This is being recognized as a very relevant problem for many computer vision tasks such as image classification, object detection, and object category recognition.
Jiaolong Xu   +3 more
openaire   +2 more sources

A Preliminary Technology Readiness Assessment of Morphing Technology Applied to Case Studies

open access: yesBiomimetics, 2023
In an innovative system, it is essential to keep under control the crucial development phases, which should consider several aspects involving, for instance, the modeling or the assessment of suitable analytical representations.
Marco Fabio Miceli   +4 more
doaj   +1 more source

Structural Adaptivity of Directed Networks

open access: yesCoRR, 2022
Network structure plays a critical role in functionality and performance of network systems. This paper examines structural adaptivity of diffusively coupled, directed multi-agent networks that are subject to diffusion performance. Inspired by the observation that the link redundancy in a network may degrade its diffusion performance, a distributed ...
Lulu Pan   +4 more
openaire   +2 more sources

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