Wheel Resonator Flat Welding Plane for Noise Control
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Solution Overview
Problem
Existing wheel resonators face challenges in accurately controlling the resonance frequency while improving productivity, as variations in welding height lead to deviations in the target resonance frequency, affecting noise reduction efficacy.
Innovation Solution
A wheel resonator design that integrates a first member with a first welding surface and a second member with a second welding surface, both on a single welding plane extending in the circumferential and width directions, where the volume chamber and communicating tube are divided, allowing for precise control of resonance frequency through molding and welding of divided portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a wheel resonator is produced by welding divided portions to improve productivity, then manufacturing efficiency increases, but variations in welding height cause deviations in resonance frequency
Solution Approach 1:
The resonator body is divided into multiple portions that are welded together, allowing for improved productivity through modular manufacturing while maintaining the ability to control resonance frequency through precise design of the communication hole position and dimensions in each segment
Solution Approach 2:
The invention controls the resonance frequency by precisely adjusting parameters such as the cross-sectional area of the communication hole, the volume of the air chamber, and the position of the communication hole, allowing the resonator to maintain target resonance frequency despite being constructed from welded portions
2Object-affected harmful factors
If the resonator volume chamber is increased to reduce road noise, then noise reduction efficacy improves, but the resonator occupies more space inside the tire
Solution Approach 1:
The resonator body is designed with a flat shape that extends in the width direction of the wheel rather than occupying radial space, allowing the volume chamber to be increased for better noise reduction while maintaining a compact profile that fits within the tire's available space
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 design enhances productivity and reduces variations in resonance frequency, ensuring the resonator maintains the target frequency, effectively reducing road noise caused by air column resonance inside tires.
Implementation Method 1
The first welding surface and the second welding surface are welded to each other
Implementation Method 2
a resonator including a volume chamber and a communicating tube is provided... restrain air column resonance inside a tire by using a resonator provided inside the tire
Data Source
AI summary
A wheel resonator, which is provided by integrating a first member having a first welding surface with a second member having a second welding surface and includes a volume chamber and a communicating tube. The volume chamber has a flat shape and is configured to extend along an outer surface of a vehicle wheel when the wheel resonator is attached to the vehicle wheel. The first welding surface and the second welding surface are welded to each other, and are provided on a single welding plane. The welding plane extends in a circumferential direction and a width direction of the vehicle wheel when the wheel resonator is attached to the vehicle wheel, is a plane on which the volume chamber is divided into two volume portions, and is a plane on which the communicating tube is divided into two communication portions. The communicating tube extends along the welding plane.