Rotary wing aircraft with a fuselage that comprises at least one structural stiffened panel

US10556662B2 · kind B2 · utility

Assignee

• AIRBUS HELICOPTERS DEUTSCHLAND GMBH · DE

Inventors

• Axel FINK · Donauwörth, DE
• Andreas Rack · Hanau, DE
• Helmut Fietz · Tapfheim, DE

Key dates

• Filing date: Jul 21, 2017
• Grant date: Feb 11, 2020
• Expiry date: Sep 14, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/40
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A rotary wing aircraft with a fuselage that comprises at least one structural stiffened panel, the structural stiffened panel comprising a stressed skin and a stiffening framework that is rigidly attached to the stressed skin, wherein the stressed skin comprises an inner skin, an outer skin and a core element assembly that is arranged between the inner skin and the outer skin, the core element assembly comprising at least one viscoelastic core element and at least one intermediate core element that are tessellated, wherein the at least one viscoelastic core element is provided for noise and vibration damping.