Musical String Winding with Variable Pre-Tension
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Solution Overview
Problem
Conventional musical strings have homogeneous mechanical properties, leading to limited sound and playing possibilities, restricting virtuosos' expression and instrument performance, as shorter string lengths result in distinct sound characters and handling differences.
Innovation Solution
A method of producing musical strings by winding a first winding element around a string core with varying pre-tensions in different longitudinal sections, creating distinct contact pressure forces and distances between turns, allowing for expanded sound and handling possibilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single constant pre-tension is applied during the entire winding process, then the manufacturing process is simple, but the sound properties and playing capabilities are limited
Solution Approach 1:
The patent applies different pre-tensions to different longitudinal sections of the string core during the winding process. This creates local variations in contact pressure force and distance between adjacent turns, resulting in non-uniform mechanical properties along the string that enable differentiated sound characteristics and playing capabilities in various regions of the string.
Solution Approach 2:
The patent changes the pre-tension parameter during the winding process, applying a first pre-tension during winding of a first longitudinal section and a second pre-tension (different from the first) during winding of a second longitudinal section. This parameter variation allows the string to have expanded sound properties and playing capabilities while maintaining a relatively simple winding process.
2Speed
If shorter string lengths are used, then higher oscillation frequencies are achieved, but the sound character becomes increasingly closed or constricted
Solution Approach 1:
The patent creates different mechanical properties in different longitudinal sections of the string through varying pre-tensions. This allows the string to maintain rich sound character even at shorter lengths by having sections with optimized contact pressure forces and turn distances that compensate for the overall length reduction, preventing the closed or constricted sound effect.
3Adaptability or versatility
If different pre-tensions are applied to different longitudinal sections, then expanded sound properties are achieved, but the manufacturing precision requirements increase
Solution Approach 1:
The patent systematically changes the pre-tension parameter during the winding process, applying a first pre-tension during winding of a first longitudinal section and a second pre-tension during winding of a second longitudinal section. This controlled parameter change enables expanded sound properties while maintaining manageable manufacturing precision through a structured approach to variation rather than random complexity.
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 approach enables musical strings with enhanced sound properties and playing capabilities, suitable for both bowing and plucking, allowing for greater virtuosity and adaptability across different musical applications.
Implementation Method 1
at least one first winding element is wound on a string core of the musical string in the form of a helical line around the string core
Implementation Method 2
During the winding of a first longitudinal section of the string core using the first winding element, a first pre-tension is applied to the string core
Data Source
AI summary
In a method for producing a musical string, wherein at least one first winding element is wound on a string core of the musical string in the form of a helical line around the string core, it is proposed that during the winding of a first longitudinal section of the string core using the first winding element, a first pre-tension is applied to the string core, and during the winding of a second longitudinal section of the string core, which is different from the first longitudinal section, using the first winding element, a second pre-tension, which is different from the first pre-tension, is applied to the string core.