Vehicle Wheel Helmholtz Resonator Friction Mounting
Solution Overview
Problem
Conventional vehicle wheels with Helmholtz resonators mounted on the outer circumferential surface face complications in production due to the need for cutting circumferential grooves, increasing production costs, and are prone to detachment under centrifugal force during high-speed rotation.
Innovation Solution
A vehicle wheel design featuring a pair of vertical walls on the outer circumferential surface of the well portion, where the Helmholtz resonator is held by frictional force generated between the resonator and the vertical walls, eliminating the need for grooves and enhancing stability against centrifugal forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If circumferential grooves are formed by cutting the rim to mount the Helmholtz resonator, then the resonator can be securely mounted, but the production steps become complicated and production cost increases
Solution Approach 1:
The invention extracts the resonator mounting function from the rim structure itself by using a separate holder component. The holder is fitted into the circumferential groove and provides the mounting interface for the resonator, separating the groove formation (performed once on the rim) from the resonator attachment (performed on the holder). This reduces rim complexity while maintaining secure mounting.
Solution Approach 2:
The holder acts as an intermediary component between the rim and the Helmholtz resonator. It receives the resonator through frictional engagement and transfers mounting forces, eliminating the need for direct resonator-to-rim attachment and simplifying the overall assembly process.
2Reliability
If circumferential grooves are formed by cutting the rim to mount the Helmholtz resonator, then the resonator can be securely mounted, but production cost increases
Solution Approach 1:
The mounting function is extracted into a separate holder component that can be manufactured independently and more economically. The holder absorbs the complexity of the mounting interface, allowing the rim to be produced with simpler geometry, thereby reducing overall production cost.
Solution Approach 2:
The holder is designed as a simpler, more economical component compared to modifying the rim structure. By using a separate holder that can be produced through less expensive processes (avoiding rim cutting operations), the overall manufacturing cost is reduced while maintaining mounting reliability.
3Ease of operation
If the Helmholtz resonator is mounted on the outer circumferential surface of the well portion, then it can be easily fitted by elastic deformation, but the mounting configuration must withstand great centrifugal force during high-speed rotation
Solution Approach 1:
The holder features a curved outer circumferential surface that matches the curvature of the well portion, allowing elastic deformation during insertion while maintaining structural integrity. The curved geometry enables easy fitting through radial compression while the arc-shaped reinforcement provides strength against centrifugal forces during rotation.
Solution Approach 2:
The holder is constructed with composite structure including arc-shaped reinforcement that combines materials or structural elements with different properties - the base material provides elasticity for easy insertion, while the arc-shaped reinforcement (potentially different material or structure) provides high strength to withstand centrifugal forces during high-speed rotation.
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
This configuration simplifies production, reduces costs, and effectively prevents the detachment of the Helmholtz resonator from the rim due to centrifugal forces, ensuring a stable mounting solution.
Implementation Method 1
a Helmholtz resonator that is provided between the pair of vertical walls and held by frictional force generated between the Helmholtz resonator and the pair of vertical walls
Data Source
AI summary
A vehicle wheel includes: a pair of vertical walls that are provided upright on an outer circumferential surface of a well portion and extend in a circumferential direction; and a sub air chamber member that is provided between the pair of vertical walls to be held by frictional force generated between the sub air chamber member and the pair of vertical walls and includes an extending wall portion.