An innovative composite energy efficiency solution / Christian Hugues in JEC COMPOSITES MAGAZINE, N° 80 (04/2013)

[article]  inJEC COMPOSITES MAGAZINE > N° 80 (04/2013) . - p. 50-51 Titre : An innovative composite energy efficiency solution Type de document : texte imprimé Auteurs : Christian Hugues, Auteur Année de publication : 2013 Article en page(s) : p. 50-51 Langues : Anglais (eng) Catégories : Aérodynamique Ailes (avions) Avions -- Fuselage Avions -- Matériaux Economies d'énergie Efficacité énergétique Index. décimale : 620.1 Mécanique de l'ingénieur (mécanique appliquée) et matériaux Résumé : Minix is an innovative wing-tip device for land, sea and air applications that procures a net economic gain of 6% per aircraft in aviation and a 14% average annual increase in power production for wind or submarine turbines. This could be a soon for the owners of wind farms that have reached their end of warranty (usually the fifth year). After a series of tests, a license for the internationally patented invention was sold in the U.S. in july 2012. Note de contenu : - Induced drag - Nature abhors a vacuum - How the Minix operates - Land, sea and air applications - Pollution - The Minix device reduces energy Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18984 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
14975	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Between the grille and the bumper / Johannes Götzelmann in KUNSTSTOFFE INTERNATIONAL, Vol. 109, N° 3 (03/2019)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 109, N° 3 (03/2019) . - p. 25-28 Titre : Between the grille and the bumper : Thermoplastic lightweight design with thermoplastic foaming, metal inserts and adaptive aerodynamics Type de document : texte imprimé Auteurs : Johannes Götzelmann, Auteur Année de publication : 2019 Article en page(s) : p. 25-28 Langues : Anglais (eng) Catégories : Aérodynamique Automobiles -- Chassis Automobiles -- Pièces Composites à fibres de carbone Composites à fibres de verre Insert (technologie) En plasturgie ou fonderie, un insert désigne une pièce d'un matériau infusible incluse dans la pièce fabriquée. Cet élément sert en général à la fixation ultérieure d'éléments mécaniques ou sert de renfort (exemple : chemise d'usure). Matériaux -- Allègement Matières plastiques dans les automobiles Mousses plastiques Polypropylène Polyuréthanes Index. décimale : 668.4 Plastiques, vinyles Résumé : High demand for high-volume SUVs and stricter CO2 regulations have forced new developments. Exterior parts should be light, functional and efficient. In addition to its product portfolio, Magna Exteriors has therefore also expanded its machine park to include manufacturing processes such as a new joining process in order to be able to offer a multi-material process mix. Note de contenu : - Liftgate inner panel produced with long glass fiber polypropylene - Investment into thermoplastic foaming processes - Working with aerodynamics - Fig. 1 : Liftgate with lock and hinge sheet and liftgate with composite frame - Fig. 2 : A new glass fiber winding machine enables light and stable frame construction. Glass fibers are wound around a polyurethane core and impregnated in HP RTM process - Fig. 3 : Cross section of a foamed thermoplastic part - Fig. 4 : The carbon fiber subframe is the result of a research and development project between Magna and Ford. The companies investigated technical challenges in the use of CF composites in chassis applications - Fig. 5 : The visible active grille shutter made of carbon fiber sheet molded compounds has reduced weight and the number of the components - Fig. 6 : Further examples of active aerodynamic parts, including an active air deflector/spoiler and an active rocker panel En ligne : https://drive.google.com/file/d/1gn7JHocd9XTqCGsXnjI5XVNE5OGYR_PK/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32118 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
20754	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Gliding farther and faster / Simon Ulrich in JEC COMPOSITES MAGAZINE, N° 134 (05-06/2020)

[article]  inJEC COMPOSITES MAGAZINE > N° 134 (05-06/2020) . - p. 40-42 Titre : Gliding farther and faster Type de document : texte imprimé Auteurs : Simon Ulrich, Auteur Année de publication : 2020 Article en page(s) : p. 40-42 Langues : Anglais (eng) Catégories : Aérodynamique Ailes (avions) Avions -- Conception et construction Avions -- Fuselage Composites à fibres de carbone Planeur Simulation par ordinateur Index. décimale : 668.4 Plastiques, vinyles Résumé : To reduce the drag on the wings of a sailplane (glider) so it could go faster and farther, engineers needed to shave a small amount of surface area from the wing. This complex task involved fluid, structural and composite material challenges that had to be solved in parallel, which could only be done using engineering simulation. Note de contenu : - Aerodynamic, structural and materials challenges - Using simulation to overcome the challenges - Answers for aerodynamics - Structures and materials - Validation - Fig. 1 : AS 33 hlider plane - Fig. 2 : Configuration investigated for the wing-fuselage junction including a high-wing position to a mid-wing position. Calculations revealed minimum drag for the mid-wing position, especially at high airspeeds - Fig. 3 : ANSYS Fluent CFD revealed unfavourable pressure peaks in the area of the wing-winglet junction, which was originally designed with classical aerodynamic tools. After design iteration with Fluent, it was possible to alleviate this problem and gain some aerodynamic efficiency - Fig. 4 : Safety factors for the carbon fibre-reinforced plastics structure in the area of the inner-wing junction were analyzed with ANSYS Composite PregPost - Fig. 5 : Safety factors for the composite wing were analyzed with ANSYS Composite PrepPost. The centr of the wing's chord has the lowest safety factors because of the compression-loaded sparflange in this area Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35376 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
21794	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 3 / 3)