Composite Wheel Cladding for Stiffness and Strength

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Solution Overview

Problem

Modern high-performance vehicle wheel assemblies face a trade-off between enhanced aerodynamics and strength, where aesthetic enhancements like plated surfaces or claddings do not significantly improve stiffness or strength, leading to increased weight and material costs.

Innovation Solution

A composite wheel assembly is developed with a wheel cladding made of high-strength materials like carbon fiber, fiberglass, or Kevlar, bonded to the wheel using adhesives such as urethane foam or silicone, which enhances stiffness and strength by 2-16% without increasing weight or size.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If plated surfaces or cladding are added to enhance aesthetic appearance, then appearance is improved, but strength and bending stiffness remain largely unaffected

Engineering Contradiction:
Improveaesthetic appearanceVSAvoidstrength and bending stiffness
Core Design Contradiction:
ShapeVSStrength

Solution Approach 1:

The patent applies composite materials by bonding wheel cladding made of high-strength materials (carbon fiber, fiberglass, Kevlar, or metal) to the wheel structure. This creates a composite construction where the cladding material contributes both aesthetic appearance and structural strength, resolving the contradiction between appearance enhancement and strength maintenance.

Inventive Principle:
Principle #40Composite materials

2Strength

If metal material is increased to meet strength and bending resistance requirements, then strength is improved, but weight and size increase

Engineering Contradiction:
Improvestrength and bending resistanceVSAvoidweight and size
Core Design Contradiction:
StrengthVSWeight of moving object

Solution Approach 1:

The patent uses composite materials (carbon fiber, fiberglass, Kevlar, or metal cladding) bonded to the wheel structure to provide the required strength and bending resistance. These materials have high strength-to-weight ratios, allowing the wheel to meet strength requirements without increasing overall weight and size, thus resolving the contradiction between strength and weight.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent applies cladding selectively to specific regions of the wheel where strength and bending resistance are most needed, rather than uniformly increasing metal material throughout the entire wheel structure. This localized application provides necessary strength while minimizing weight and size increases.

Inventive Principle:
Principle #3Local quality

3Speed

If wheel material thickness is reduced to enhance aerodynamics, then aerodynamic performance is improved, but strength and stiffness are compromised

Engineering Contradiction:
Improveaerodynamic performanceVSAvoidstrength and bending stiffness
Core Design Contradiction:
SpeedVSStrength

Solution Approach 1:

The patent uses high-strength composite materials (carbon fiber, fiberglass, Kevlar) for the wheel cladding that can provide exceptional strength and stiffness at reduced thicknesses. These materials allow the wheel to maintain structural integrity while having thinner sections that improve aerodynamic performance, resolving the contradiction between aerodynamics and strength.

Inventive Principle:
Principle #40Composite materials

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 composite wheel assembly achieves improved stiffness and strength while maintaining a minimal weight and aerodynamic profile, addressing the limitations of traditional metal-only wheel designs.

Implementation Method 1

fixedly bonded to at least one of the inwardly facing surface and the outwardly facing surface of the wheel

Methodology Applied
Scientific EffectAdhesive bonding: Adhesive

Data Source

PatentUS10688823B2Reinforced composite vehicle wheel and method of construction thereof
Publication Date: 2020.06.23 LACKS ENTERPRISES INC
  • US10688823B2 patent drawing
  • US10688823B2 patent drawing
  • US10688823B2 patent drawing

AI summary

A composite wheel assembly and method of construction thereof is provided. The composite wheel assembly includes a wheel having an inwardly facing surface, an outwardly facing surface, a generally cylindrical barrel portion, and a plurality of apertures formed about a central hub aperture. At least one wheel cladding is fixedly bonded to at least one of the inwardly facing surface, the outwardly facing surface, and the generally cylindrical barrel portion. The wheel cladding increases the stiffness and/or strength of the wheel between about 2-16% or greater as compared to the wheel not having the at least one cladding.