Vehicle Wheel Helmholtz Resonator Bonding to Vertical Walls

Solution Overview

Problem

Existing vehicle wheels with Helmholtz resonators attached using adhesives face noise reduction inefficiencies due to deformation, which alters the resonator's capacity and cross-sectional area, leading to insufficient noise reduction from pipe resonance.

Innovation Solution

A vehicle wheel design featuring a pair of vertical walls extending from the outer circumferential surface of the well portion, with the Helmholtz resonator bonded to the side surfaces of these walls using an adhesive, ensuring it is not bonded to the outer circumferential surface, thus maintaining stability and noise reduction even during wheel deformation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the Helmholtz resonator is bonded to the outer circumferential surface of the well portion with an adhesive, then the fixation is simple and secure, but the resonator deforms when the wheel deforms, changing its capacity and cross-sectional area, leading to insufficient noise reduction

Engineering Contradiction:

Improvenoise reduction effectivenessVSAvoidresonator shape stability

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The attachment structure is segmented into two distinct bonding locations: the bottom surface of the resonator is not bonded to the well portion outer surface, while the side surfaces are bonded to the vertical walls. This segmentation allows the bottom surface to remain free for shape stability while the side surfaces provide secure fixation through adhesion to the vertical walls.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The vertical walls act as an intermediary structure between the resonator and the well portion. By bonding the resonator to the vertical walls rather than directly to the well portion outer surface, the design isolates the resonator from deformation stresses while maintaining secure fixation.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of manufacture

If the Helmholtz resonator is attached using circumferential grooves and elastic deformation, then the attachment is easy and secure, but it does not prevent deformation-induced changes in resonator capacity and cross-sectional area

Engineering Contradiction:

Improveattachment easeVSAvoidnoise reduction effectiveness

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The attachment structure is segmented into two distinct bonding locations: the bottom surface of the resonator is not bonded to the well portion outer surface, while the side surfaces are bonded to the vertical walls. This segmentation allows the bottom surface to remain free for shape stability while the side surfaces provide secure fixation through adhesion to the vertical walls.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The design changes the bonding location from the bottom surface to the side surfaces, and introduces vertical walls with specific geometric parameters (width, height, spacing) to create an attachment structure that maintains resonator shape stability while enabling secure fixation.

Inventive Principle:

Principle #35Parameter changes

3Strength

If the Helmholtz resonator is bonded to the outer circumferential surface, then the fixation is secure, but wheel deformation causes resonator deformation that alters its acoustic properties

Engineering Contradiction:

Improveadhesion strengthVSAvoidresonator dimensional stability

Core Design Contradiction:

StrengthVSManufacturing precision

Solution Approach 1:

The attachment structure is segmented into two distinct bonding locations: the bottom surface of the resonator is not bonded to the well portion outer surface, while the side surfaces are bonded to the vertical walls. This segmentation allows the bottom surface to remain free for shape stability while the side surfaces provide secure fixation through adhesion to the vertical walls.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The vertical walls act as an intermediary structure between the resonator and the well portion. By bonding the resonator to the vertical walls rather than directly to the well portion outer surface, the design isolates the resonator from deformation stresses while maintaining secure fixation.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 reduces noise caused by pipe resonance and prevents detachment of the Helmholtz resonator during wheel deformation, enhancing the adhesion strength through surface processing and thread formations for improved fixation.

Implementation Method 1

A Helmholtz resonator has been known to be disposed on an outer circumferential surface of a well portion of a wheel

Methodology Applied

Scientific EffectHelmholtz resonance: Helmholtz Resonance

Implementation Method 2

bonded to side surfaces of the pair of vertical walls with an adhesive

Methodology Applied

Scientific EffectAdhesion: Adhesive

Data Source

PatentUS11440345B2Vehicle wheel

Publication Date: 2022.09.13 HONDA MOTOR CO LTD

AI summary

A vehicle wheel includes a pair of vertical walls that extend vertically up from an outer circumferential surface of a well portion and extend in a wheel circumferential direction and a Helmholtz resonator that is disposed between the pair of vertical walls and bonded to side surfaces of the pair of vertical walls with an adhesive, in which the Helmholtz resonator is not bonded to the outer circumferential surface of the well portion.