Electric Guitar Body Structure With Slit-Linked Resonance Chambers
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Solution Overview
Problem
Existing electric guitars with multiple chambers face challenges in controlling acoustic phenomena due to similar resonance frequencies, making it difficult to achieve a beautiful and reverberant sound.
Innovation Solution
The electric guitar body structure incorporates a first and second chamber connected by a slit, forming a composite chamber with a larger volume, and the slit's cross-sectional area is smaller than each chamber's, allowing control over resonance frequencies and maintaining rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If multiple chambers of substantially the same volume are provided in the body, then weight reduction is achieved, but the resonance frequencies become substantially the same making acoustic control difficult
Solution Approach 1:
The body is divided into multiple chambers (first chamber and second chamber) that are spatially separated but acoustically connected through the slit, allowing each chamber to contribute to weight reduction while the slit enables acoustic interaction for controlled resonance
Solution Approach 2:
The slit acts as an intermediary element connecting the first chamber and second chamber, enabling acoustic communication between them. This mediator allows the chambers to interact acoustically, creating controlled resonance frequencies while maintaining the weight reduction benefit of multiple chambers
2Device complexity
If multiple grooves are provided on the inner surface of chambers, then acoustic phenomenon control is attempted, but it remains difficult to achieve desired acoustic control in multi-chamber bodies
Solution Approach 1:
The invention extracts the acoustic control function from complex inner surface modifications (grooves) and implements it through a simpler structural element - the slit connecting chambers. This removes the need for complex groove patterns while achieving effective acoustic control
Solution Approach 2:
Instead of modifying the inner surfaces of chambers with grooves to control acoustics, the invention inverts the approach by controlling acoustics through the connection structure (slit) between chambers. This reverse approach simplifies the solution while maintaining acoustic control effectiveness
3Reliability
If chambers are connected by a slit with small cross-sectional area, then resonance frequencies are controlled and structural rigidity is maintained, but the connection between chambers is limited
Solution Approach 1:
The slit's cross-sectional area is optimized to a specific small dimension that simultaneously maintains structural rigidity of the body and enables sufficient acoustic coupling between chambers. This parameter optimization resolves the contradiction by finding the optimal value that satisfies both requirements
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 enables the generation of a beautiful and reverberant sound while reducing weight, by differing resonance frequencies and maintaining structural integrity.
Implementation Method 1
the resonance frequencies of the plurality of chambers become substantially the same, giving rise to the necessary to control the acoustic phenomenon of the body
Implementation Method 2
control the acoustic phenomenon of the body having a plurality of chambers
Data Source
AI summary
A body structure of an electric guitar includes a body including a first chamber and a second chamber formed spaced apart from each other, and a slit that connects the first chamber and the second chamber.