Patent · US Active

Structural element for an aircraft or spacecraft and method for producing such a structural element

US8882469B2 · kind B2 · utility

1Cited by

5References

12Claims

0Family size

Assignee

AIRBUS OPERATIONS LIMITED · DE

Inventors

Ichwan Zuardy · Hamburg, DE
Karim Grase · Hamburg, DE
Wolfgang Voege · Bremen, DE
Axel Herrmann · Lehrte, DE

Key dates

Filing date	Jul 25, 2011
Grant date	Nov 11, 2014
Priority date	—
Expiry date	May 16, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24992
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

The present invention provides a structural element, in particular for an aircraft or spacecraft, comprising a core, the material density of which varies, at least in portions, in order to optimize the natural vibration behavior of the structural element. The present invention further provides a method for producing a structural element, in particular for an aircraft or spacecraft, comprising the following steps: providing a structural element which has a core; determining the natural vibration behavior of the structural element; and varying the material density of the core of the structural element, at least in portions, in such a way that the natural vibration behavior of the structural element is optimized. The present invention provides still further an aircraft or spacecraft and a rotor blade, in particular for a wind turbine, comprising such a structural element.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.