Polyhedral Rotary-Wing Mobile Object for Wind-Resistant Flight
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Solution Overview
Problem
Existing mobile objects, such as drones, are not stably movable in the presence of external factors like wind, which affects their navigation and stability during flight.
Innovation Solution
A mobile object design featuring a body in the form of a regular hexahedron with rotary-wing modules attached at its vertices, where the rotary wings have rotation axes connected to a reference point, typically the center of gravity or geometric center of the body, and a surrounding cage that maintains the body's attitude, allowing for stable movement and attitude adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rotary-wing modules are arranged at vertices of a polyhedral body with rotation axes connected to a reference point, then flight stability and resistance to external factors are improved, but device complexity increases
Solution Approach 1:
The mobile object is divided into a body and multiple rotary-wing modules, with each module independently controllable. This segmentation allows the system to achieve stable flight by coordinating the rotation of individual modules, resolving the contradiction between flight stability and structural simplicity.
Solution Approach 2:
The rotary wings are positioned asymmetrically at the vertices of a polyhedron rather than in a symmetric circular arrangement. This asymmetric configuration with rotation axes connecting to a reference point creates better aerodynamic balance and stability against external factors like wind, while the polyhedral geometry provides structural efficiency.
2Reliability
If rotary wings are located outside the body with rotation axes connecting to a reference point, then propulsion consistency is improved, but manufacturing complexity increases
Solution Approach 1:
The rotary-wing modules serve multiple functions: they provide propulsion, maintain attitude, and can be independently controlled for stable flight. This multi-functionality justifies the increased manufacturing complexity by delivering superior flight performance and reliability.
Solution Approach 2:
The rotation axes are pre-configured to connect vertices to a reference point during manufacturing, establishing the geometric relationship before assembly. This preliminary configuration ensures consistent propulsion and aerodynamic balance while streamlining the assembly process.
3Object-affected harmful factors
If a cage is added to maintain body attitude, then resistance to wind gusts is improved, but device complexity and weight increase
Solution Approach 1:
The cage is designed as a thin-walled polyhedral structure that provides attitude maintenance with minimal material usage. This flexible yet structurally sound design offers resistance to wind gusts while keeping weight and manufacturing complexity to a minimum.
Solution Approach 2:
The cage can be constructed using composite materials that provide high strength-to-weight ratio, enhancing wind resistance while minimizing added weight. The polyhedral geometry optimizes material distribution for maximum structural efficiency.
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 design enables stable movement and flight stability regardless of external factors, reducing the probability of falling and maintaining consistent propulsion even when the attitude changes, thus providing enhanced resistance to wind gusts and obstacles.
Implementation Method 1
rotary-wing modules each including a rotary wing and a drive unit, the drive unit being configured to drive the rotary wing
Data Source
AI summary
A mobile object 1 according to the present disclosure includes a body 10 provided as a first polyhedron, and rotary-wing modules 20 attached to the body 10 at all vertices of the first polyhedron. The rotary-wing modules 20 each include a rotary wing 21 and a drive unit 22. The drive unit 22 is configured to drive the rotary wing 21. The rotary wings 21 are located outside the body 10 and each have a rotation axis that is a straight line connecting a reference point PO and a corresponding one of the vertices of the first polyhedron. The reference point PO is defined inside the body 10.