Aircraft Pushing Device for Broken Damping Parts

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Solution Overview

Problem

Aircraft moving components, such as damping devices, can break and impact stationary structures, causing damage and jams, leading to malfunction of the moving mechanism.

Innovation Solution

A pushing device with a support member and a pushing assembly, including a pin and a spring, is installed to catapult broken parts of the damping device to an offset position, preventing impact with stationary structures and potential jams.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a damping device is installed on a moving component, then the stability of the moving component is improved, but the risk of broken parts impacting stationary structures and causing damage increases

Engineering Contradiction:

Improvestability of the moving componentVSAvoiddamage to stationary structure

Core Design Contradiction:

Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The pushing device is pre-installed on the damping device to automatically push broken parts away from the stationary structure before impact can occur. This preliminary protective action prevents the harmful effect of broken parts damaging the stationary structure while maintaining the damping device's stability function.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The pushing device acts as an intermediary mechanism between the broken damping device parts and the stationary structure. It intervenes to redirect broken parts away from the stationary structure, preventing direct contact and potential damage.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Stability of the object's composition

If a damping device is installed on a moving component, then the stability of the moving component is improved, but the risk of broken parts causing a jam increases

Engineering Contradiction:

Improvestability of the moving componentVSAvoidnormal operation of the moving mechanism

Core Design Contradiction:

Stability of the object's compositionVSReliability

Solution Approach 1:

The pushing device is pre-configured to automatically activate when the damping device breaks, pushing broken parts away before they can cause a jam. This preliminary action maintains the reliability of the moving mechanism by preventing broken parts from interfering with the moving component's operation.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The pushing device converts the harmful effect of broken parts (which could cause jams) into a beneficial outcome by using the breaking event itself as a trigger to activate the pushing mechanism, which then redirects broken parts to a safe position where they cannot interfere with operation.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Object-affected harmful factors

If a pushing device is added to prevent broken parts from impacting stationary structures, then the protection of stationary structures is improved, but the device complexity increases

Engineering Contradiction:

Improvedamage to stationary structureVSAvoidcomplexity of the moving mechanism

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The pushing device is designed to be self-activating through the breaking event itself. When the damping device breaks, the pushing device automatically pushes broken parts away without requiring external control systems, sensors, or additional power sources, thereby minimizing the increase in device complexity.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The pushing device uses simple, inexpensive mechanical components that can be easily replaced if needed. The design prioritizes simplicity and cost-effectiveness over complex, durable systems, accepting that the pushing device itself may be a temporary or disposable protective measure.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution effectively prevents damage to stationary structures and maintains the functionality of the moving mechanism by safely redirecting broken parts, allowing the mechanism to continue operating normally.

Implementation Method 1

an energy storage element... The pushing element is adapted to push a broken part of the auxiliary moving device to an offset position from a normal working position by means of energy from the energy storage element

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentUS10000276B2Pushing device, moving mechanism and aircraft

Publication Date: 2018.06.19 AIRBUS BEIJING ENG CENT

AI summary

The present application relates to a pushing device, a moving mechanism and an aircraft. According to an aspect of the present application, a pushing device for a moving mechanism of an aircraft is provided, the moving mechanism including a primary moving device and an auxiliary moving device assisting the primary moving device, the pushing device including a support member and a pushing assembly supported by the support member, and the pushing assembly including a pushing element and an energy storage element. The pushing element is adapted to push a broken part of the auxiliary moving device to an offset position from a normal working position by means of energy from the energy storage element when the auxiliary moving device breaks. According to the present application, it is possible to provide an effective fault protection to the moving mechanism of the aircraft.