Fuselage structural component of an aircraft or spacecraft, with a foam layer as thermal insulation

Abstract

The present invention creates a fuselage structural component (1) of an aircraft or spacecraft, with a non- load-bearing outer skin (2) and a load-bearing inner framework structure (3), wherein a foam layer (4) which effects heat insulation and / or impact protection is arranged between the outer skin (2) and the inner framework structure (3).

Description

technical field [0001] The invention relates to a structural fuselage component for an aircraft or a dirigible, in which at least one foam layer is provided, said foam layer forming a thermal insulation layer. Background technique [0002] In cruising flight, the ambient temperature is typically around -50°C. Previous building materials used for fuselage construction absorbed this temperature over time with a corresponding surface temperature inside the fuselage. Therefore, a thermal insulation layer is provided on the inner side for the protection of passengers. However, this is exposed to air circulation. As a result, warm cabin air is continuously cooled on the cold inner surfaces of the fuselage structure. In this way, a large amount of condensed water cannot be avoided. The structure forces regular re-drying of the insulation, which traps 400 kg of moisture. Furthermore, protective measures against corrosion must be implemented and must be checked regularly. In th...

AI Technical Summary

Problems solved by technology

Also this leads to an increase in weight which should only be saved by using CFK parts compared to metal parts

This results in a substantial reduction in the actual weight advantage of CFK structures in known fuselages

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