One-Piece Damping Element With Reduced Cross-Sections
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Solution Overview
Problem
Existing damping solutions for sound reinforcement devices and consumer electronics fail to evenly dampen both vertical and horizontal vibrations, leading to sound distortion and limited service life due to material compression under weight.
Innovation Solution
A one-piece damping element made from elastic plastic material with a structure featuring spaced-apart regions of reduced cross-section, providing distinct spring constants in axial and radial directions, optimized through geometric design and material selection to ensure even vibration damping across both directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a damping element is made from elastic material to dampen vibrations, then vibration damping is achieved, but the element compresses under device weight leading to limited service life and loss of damping performance
Solution Approach 1:
The damping element is divided into multiple damping zones with different material properties or geometries. Each zone is optimized for specific vibration frequencies or directions, allowing the structure to maintain damping effectiveness without excessive compression under static load. The segmented design distributes mechanical stress more evenly throughout the element.
Solution Approach 2:
Different regions of the damping element have locally optimized properties - some areas are designed with higher stiffness to support device weight, while other regions maintain higher elasticity for vibration damping. This local differentiation allows the element to simultaneously bear load and dampen vibrations without compromising service life.
2Reliability
If a damping element is designed to dampen vertical vibrations, then vertical vibration damping is improved, but horizontal vibrations are not damped to the same extent
Solution Approach 1:
The damping element is designed with a geometric structure and material distribution that provides damping capability in multiple directions simultaneously. The element can dampen vertical, horizontal, and rotational vibrations through its symmetric or multi-axial structure, making it universally effective for complex vibration environments without requiring separate damping components for each direction.
Solution Approach 2:
The damping element employs composite construction combining materials with different mechanical properties - such as elastic polymers for vibration absorption and stiffer structural components for load bearing. This composite approach enables the element to provide balanced damping performance across multiple vibration directions while maintaining structural integrity under device weight.
3Ease of manufacture
If the damping element structure is simplified for ease of manufacture, then manufacturing cost decreases, but the ability to dampen different vibration frequencies effectively is reduced
Solution Approach 1:
The damping element's performance is optimized by adjusting geometric parameters such as thickness, radius, and curvature rather than requiring complex multi-component assemblies. By varying these parameters during a single manufacturing process, the element can be tailored to dampen specific vibration frequencies effectively while maintaining manufacturing simplicity and cost-effectiveness.
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 vibration transmission to the footprint, maintains optimal damping performance over time, and prevents tonal discolorations, offering improved sound quality and durability.
Implementation Method 1
a damping element (1) made in one piece from an elastic plastic material
Data Source
Figure 1~3
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Figure 6~7
AI summary
An attenuation element (1) for an attenuator for attachment between a sound device or consumer electronics, particularly an audio playback device, or a musical instrument, and a setup space is designed as one piece from a plastic material and has a structure (11) including several spaced regions (12a...12c) having reduced cross-sections. The design according to the invention enables simple and cost-effective production, such as by way of an injection molding method, and allows specific optimization with respect to optimal sound.