Aircraft Cabin Equipment Holding Structure for Flexible Load Transfer
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Solution Overview
Problem
The integration of cabin equipment in an aircraft fuselage structure often restricts the type of equipment that can be used due to its impact on the mechanical properties of the fuselage, limiting flexibility in interior design and installation.
Innovation Solution
A holding system with a longitudinal element having primary and monumentary connection arrangements, allowing flexible installation by decoupling the load path between monuments and the primary support structure, using crimping connections and a rope-like structure to distribute loads without affecting the primary structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cabin equipment is directly mounted to the fuselage structure, then the equipment is securely fixed, but the mechanical properties of the fuselage structure are affected and flexibility in equipment selection is restricted
Solution Approach 1:
A longitudinal element acts as an intermediary component between the monument (cabin equipment) and the primary support structure (fuselage). This mediator transfers loads from the monument to the primary structure through distributed connection points, preventing direct stress concentration on the fuselage while enabling flexible equipment installation.
Solution Approach 2:
The connection system is segmented into multiple discrete connection points along the longitudinal element rather than a single direct mounting point. This segmentation distributes the mechanical load across multiple locations on the primary support structure, reducing the impact on any single point and preserving the overall mechanical integrity of the fuselage.
2Reliability
If a rigid mounting system is used to securely attach monuments, then the connection is strong, but the system cannot accommodate differences in acceleration between cabin equipment and fuselage structure
Solution Approach 1:
The longitudinal element provides a dynamic connection that can accommodate relative motion and acceleration differences between the monument and fuselage structure. The element acts as a flexible connector that maintains connection integrity while allowing for differential movements during aircraft maneuvers, unlike a rigid mounting system.
3Strength
If multiple fixation points are used to distribute loads, then the load distribution is improved, but the complexity of the mounting system increases
Solution Approach 1:
The longitudinal element serves multiple functions simultaneously: it acts as a structural connector, a load distribution mechanism, and a positioning element for the monument. This multi-functionality reduces the need for separate specialized components, thereby managing system complexity while achieving effective load distribution across multiple fixation points.
Data Source
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AI summary
The present invention relates to a holding system. In order to provide for an improved way of connecting cabin equipment to a fuselage structure of an aircraft to provide a more flexible installation of the equipment, the holding system (10) for monuments (12) in an aircraft cabin comprises a longitudinal element (14) having a primary connection arrangement (16) comprising a plurality of first connection interfaces (18) and a monumentary connection arrangement (20) comprising at least one monument connection interface (22). The longitudinal element is mounted to at least two primary fixation points (24) at a primary support structure (26) with the plurality of first connection interfaces, wherein the at least two primary fixation points are distanced from each other in a travel direction (28) of the aircraft. The longitudinal element is connected to at least one monument fixation point (30) at a monument (32) with the at least one monument connection interface, the least at one monument fixation point being arranged on the monument in an upper section (34) of the monument. The monument is configured to be mounted to a floor support structure (36) of the aircraft cabin in a lower section (38) of the monument. The holding system is configured to transfer load (40) from the monument to the primary support structure.