Flight Craft Envelope Attachment via Intermediate Member Groove
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In flight crafts equipped with envelopes, the risk of the envelope moving from between tightening members due to external forces, such as a load suspended beneath, is high, potentially leading to damage like tearing at the points where the envelope contacts the bolts.
Innovation Solution
The implementation of an intermediate member with an annular shape and a tightening mechanism that brings the front and rear side members closer, effectively catching the gores and preventing them from moving between the tightening members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the envelope is attached to the assembly using tightening members with surface contact, then the force distribution is improved and envelope damage risk is reduced, but the envelope may still shift and move from between the inner and outer members when downward force exceeds frictional forces
Solution Approach 1:
The patent introduces an intermediate member with a groove structure that acts as a mediator between the inner and outer members. This groove catches the envelope material, preventing it from sliding out while distributing forces effectively. The intermediate member's groove structure resolves the contradiction by providing both position stability and damage resistance.
Solution Approach 2:
The patent segments the attachment structure into distinct components: inner member, outer member, and intermediate member with groove. This segmentation allows each component to perform its specific function - the inner and outer members provide clamping force while the intermediate member's groove prevents envelope displacement, addressing both strength and reliability requirements.
2Device complexity
If a bolt shaft penetrates the envelope to tighten the inner and outer members, then the tightening mechanism is simplified, but the envelope may tear at the contact point with the bolt shaft
Solution Approach 1:
The intermediate member with its groove structure serves as a mediator that prevents direct contact between the bolt shaft and the envelope. The groove catches the envelope material, distributing the contact forces and preventing localized tearing while maintaining the simplicity of the bolt-based tightening mechanism.
Solution Approach 2:
The patent applies local quality by creating a specialized groove structure in the intermediate member at the critical contact area. This groove provides enhanced envelope engagement and force distribution precisely where the bolt shaft contacts the envelope, preventing tearing without complicating the overall tightening mechanism.
3Weight of moving object
If the envelope is made of thin and lightweight sheet-like material to reduce weight, then the flight craft weight is reduced, but the envelope becomes easily damaged when subjected to large localized external forces
Solution Approach 1:
The intermediate member with groove structure acts as a protective intermediary between the lightweight envelope and external forces. It distributes localized forces across a larger area and prevents stress concentration at the envelope, allowing the envelope to remain thin and lightweight while resisting damage.
Solution Approach 2:
The groove structure in the intermediate member provides beforehand cushioning by preemptively distributing and mitigating external forces before they can damage the envelope. This protective mechanism allows the envelope to maintain its lightweight construction while being protected against damaging forces.
Data Source
AI summary
A flight craft comprises: an intermediate member, which has an annular shape in a plan view and has a flat cross-sectional shape when cut along a plane that includes a straight line in a direction of the plan view; a plurality of gores, each of which extends from an outer side to an inner side of the intermediate member in the plan view, passes through an inner opening of the intermediate member, is folded back, and then extends from the inner side to the outer side of the intermediate member in the plan view; a front side member, which is positioned on a front side of the intermediate member, where the front side is defined as a side facing outward in the plan view, and a rear side is defined as a side opposite to the front side; a rear side member that is positioned on a rear side of the intermediate member; and a tightening mechanism that tightens the front side member and the rear side member in a direction that brings them closer to each other.