Monolithic Composite Paramotor Frame Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional paramotor frames are heavy, costly, and limited in structural strength and aerodynamic shape, failing to provide the performance benefits and manufacturing advantages needed for advanced flight capabilities.
Innovation Solution
A monolithic, non-metallic molded body serves as the structural support for a paramotor assembly, incorporating a hoop and spars, allowing for reduced weight, increased strength, and complex aerodynamic shapes, while optionally housing a fuel tank, eliminating the need for external metallic frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional metallic frames are used for paramotor assembly, then structural strength is maintained, but weight increases and cost increases
Solution Approach 1:
The patent employs composite materials, specifically carbon fiber reinforced polymers, to replace traditional metallic frames. This composite construction achieves comparable or superior structural strength while dramatically reducing frame weight, directly resolving the contradiction between strength and weight.
Solution Approach 2:
The frame is divided into modular components that can be independently optimized and assembled. This segmentation allows for strategic placement of high-strength materials only where structurally necessary, reducing overall weight while maintaining required strength characteristics.
2Strength
If traditional metallic frames are used for paramotor assembly, then structural support is provided, but cost increases
Solution Approach 1:
The patent merges the frame structure with the fuel tank into a single integrated composite component. This consolidation eliminates the need for separate metallic frame construction and external fuel tank installation, reducing manufacturing steps, material costs, and assembly complexity while maintaining structural integrity.
Solution Approach 2:
Composite materials offer lower material costs compared to aerospace-grade metals, and their molding processes are more efficient than metal fabrication. The composite construction allows for near-net-shape manufacturing, minimizing waste and reducing overall production costs.
3Stability of the object's composition
If traditional metallic frames are used for paramotor assembly, then structural stability is maintained, but aerodynamic shape complexity is limited
Solution Approach 1:
Composite materials can be molded into complex three-dimensional aerodynamic shapes that are impossible to achieve with traditional metallic tube structures. The patent utilizes these material properties to create optimized airfoil sections and streamlined contours while maintaining structural stability through appropriate fiber orientation and laminate design.
Solution Approach 2:
The patent employs varying fiber orientations, laminate thicknesses, and material compositions throughout the frame structure. These parameter changes allow different sections to be optimized for both aerodynamic performance and structural stability, creating shapes that would be impossible with uniform metallic construction.
4Adaptability or versatility
If traditional metallic frames are used for paramotor assembly, then component mounting is enabled, but weight and space are increased
Solution Approach 1:
The patent integrates component mounting features directly into the composite frame structure itself, eliminating the need for separate mounting brackets, bolts, and fasteners. This integration reduces overall weight while maintaining full adaptability for mounting motors, fuel tanks, and other paramotor components.
Solution Approach 2:
The composite frame serves multiple functions simultaneously: it provides structural support, acts as a mounting structure for all components, and functions as part of the aerodynamic surface. This multi-functionality reduces the total weight compared to traditional designs where each function requires separate structural elements.
Data Source
AI summary
A paramotor assembly, a unibody frame for such a paramotor assembly, and a method of making a paramotor assembly are provided. The paramotor assembly includes a monolithic, non-metallic molded body, a hoop extending at least partially around the molded body, and spars coupling the hoop and the molded body. Each of the spars includes an inner end coupled to the molded body and an outer end coupled to the hoop. The inner ends of the spars are spaced from one another and held in position relative to one another by the molded body. The method includes molding the monolithic molded body from the non-metallic material, attaching inner ends of the spars to the molded body at spaced apart inner locations, and attaching outer ends of the spars to the hoop at spaced apart outer locations.