Triangular Drive Device Assembly for Aircraft

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Solution Overview

Problem

Current aircraft designs face limitations in increasing the number of drive devices and load capacity due to stress concentration and weight issues, leading to restricted expansion and inefficient energy consumption, especially in harsh environments.

Innovation Solution

A modular drive device assembly is implemented, where drive devices are arranged in triangular or tetrahedral configurations to optimize weight distribution and mechanical structure, allowing for unlimited expansion and improved load-bearing capacity, combined with a multi-flight mode aircraft design that integrates helicopter and fixed-wing capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If multiple drive devices are arranged in tandem, linear, square, or annular configurations, then the drive force is strengthened, but the volume and weight of the assembly increase due to complicated connections and unnecessary spaces

Engineering Contradiction:
Improvedrive forceVSAvoidassembly volume
Core Design Contradiction:
ForceVSVolume of stationary object

Solution Approach 1:

The patent merges multiple drive devices into a compact assembly by eliminating unnecessary spaces and optimizing the connection structure. The drive devices are arranged in a configuration that allows them to share common structural elements and mounting points, reducing the overall volume while maintaining the combined drive force.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent transitions from traditional one-dimensional tandem or linear arrangements to a three-dimensional spatial configuration. By utilizing vertical and lateral spaces more efficiently, the drive devices are positioned to minimize the assembly's footprint while maximizing the utilization of available space, thereby reducing overall volume without compromising drive force.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Force

If multiple drive devices are arranged in tandem, linear, square, or annular configurations, then the drive force is strengthened, but the weight of the assembly increases due to complicated connections and stress concentration requirements

Engineering Contradiction:
Improvedrive forceVSAvoidassembly weight
Core Design Contradiction:
ForceVSWeight of stationary object

Solution Approach 1:

The patent combines multiple drive devices into a unified assembly where common structural elements and mounting points are shared. This merging approach reduces the total amount of structural material required compared to separate installations, thereby reducing the overall weight while maintaining the combined drive force capability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent applies local quality by optimizing the connection structure at specific locations to handle stress concentrations efficiently. Rather than uniformly reinforcing the entire assembly, the design focuses reinforcement only where necessary based on the stress distribution pattern, reducing unnecessary weight while ensuring structural integrity.

Inventive Principle:
Principle #3Local quality

3Force

If the number of drive devices is increased unlimitedly, then the drive force continues to increase, but the connection structure collapses due to stress concentration

Engineering Contradiction:
Improvedrive forceVSAvoidconnection structure strength
Core Design Contradiction:
ForceVSStrength

Solution Approach 1:

The patent segments the connection structure into modular units that can be independently optimized and scaled. Each module is designed to handle a specific load, and additional drive devices can be added by replicating and connecting these standardized modules, distributing stress evenly and preventing collapse even as the number of drive devices increases.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent employs parameter changes by adjusting the connection structure's geometric and material parameters based on the number and arrangement of drive devices. The connection design incorporates adjustable parameters such as bolt sizes, plate thicknesses, and structural dimensions that can be optimized for different configurations, ensuring the connection strength scales appropriately with the drive force.

Inventive Principle:
Principle #35Parameter changes

4Force

If the fuselage size is increased to accommodate more drive devices, then the load bearing capacity increases, but the dead weight increases and weakens the drive force efficiency

Engineering Contradiction:
Improveload bearing capacityVSAvoidfuselage dead weight
Core Design Contradiction:
ForceVSWeight of stationary object

Solution Approach 1:

The patent merges the drive device assembly with the fuselage structure by integrating mounting points and support elements directly into the fuselage design. This integration eliminates the need for separate heavy mounting structures and reduces the overall dead weight while maintaining the load bearing capacity required to support multiple drive devices.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent utilizes three-dimensional spatial arrangement of drive devices to maximize load bearing capacity without proportionally increasing fuselage volume. By positioning drive devices in a compact 3D configuration rather than spreading them out in a larger fuselage, the design achieves high load capacity with minimal additional dead weight.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

5Adaptability or versatility

If the fuselage size is increased to accommodate more drive devices, then the drive devices can be arranged more freely, but the energy consumption increases due to excessive dead weight

Engineering Contradiction:
Improvedrive device arrangement flexibilityVSAvoidenergy consumption
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The patent combines the drive device assembly into a compact integrated unit that maintains arrangement flexibility while minimizing the fuselage size required. This merging approach reduces the dead weight that would otherwise be associated with a larger fuselage, thereby reducing energy consumption while preserving the ability to arrange drive devices optimally for different operational requirements.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS10683098B2Driving device assembly with multiple drive devices and application thereof
Publication Date: 2020.06.16 TIAN YUEFENG
  • US10683098B2 patent drawing
  • US10683098B2 patent drawing
  • US10683098B2 patent drawing

AI summary

The present invention relates to a drive device assembly having a plurality of drive devices and an aircraft for which drive devices and loads can be increased unlimitedly. The drive devices are arranged in a triangle so as to form a triangular drive device module. In a preferred assembling method, the spatial distances between adjacent drive devices are equal; a drive device module arranged in a triangle is taken as a basis, and is mapped and arranged and assembled towards the spatial direction so as to form a drive device assembly constituted by the multiple drive devices. The present application improves the aircraft, especially in terms of the traditional structure layout of the aircraft driven by multiple drive devices, such that the drive devices in the drive system can be increased unlimitedly, thus improving the flight performance and loading capacity of the aircraft.