Monolithic Dampener Insert with Friction Particles for Vibration Reduction
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Solution Overview
Problem
Existing vehicle dampeners are inefficient in reducing vibration and noise due to limited energy dissipation mechanisms, particularly in oscillating motions, which affects vehicle comfort and performance.
Innovation Solution
A monolithic dampener with a chamber containing dampening particles that generate friction through movement, embedded within a vehicle component, utilizing intrusions and protrusions for secure fixation and energy absorption, and a support structure for enhanced vibration transfer and dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional dampeners with limited energy dissipation mechanisms are used, then the structure is simple, but the vibration reduction efficiency is insufficient
Solution Approach 1:
The dampener is divided into multiple functional segments: a housing structure, multiple dampening elements arranged in series, and energy dissipation components. This segmentation allows each element to contribute to vibration reduction through different mechanisms while maintaining overall system efficiency without excessive complexity
Solution Approach 2:
The dampener employs composite construction combining rigid housing material with viscoelastic dampening material. This composite approach enables the structure to simultaneously provide mechanical support and energy dissipation functions, improving vibration reduction efficiency without proportionally increasing structural complexity
2Reliability
If multiple surfaces rubbing against each other are used to dissipate energy, then vibration reduction improves, but friction and wear between surfaces increase
Solution Approach 1:
The patent replaces traditional mechanical friction-based damping with viscoelastic material damping. The viscoelastic material dissipates energy through internal molecular friction rather than surface-to-surface contact, significantly reducing wear while maintaining effective energy dissipation capability
Solution Approach 2:
The dampener utilizes the temperature-dependent properties of viscoelastic materials to optimize energy dissipation. By designing the dampening elements to operate within specific temperature ranges where the material exhibits optimal loss factors, the system achieves high energy dissipation without excessive friction-induced heating or degradation
3Loss of energy
If dampening particles are used to generate friction through movement, then kinetic energy dissipation improves, but particle distribution and containment complexity increases
Solution Approach 1:
The dampening particles are contained within nested chambers or cavities inside the dampener housing. This nested structure allows particles to be confined in specific zones where they can effectively interact with vibration-induced motion while being protected from contamination and maintaining proper distribution without requiring complex external containment mechanisms
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 and noise by dissipating kinetic energy through friction between the dampening particles and other components, enhancing vehicle comfort and performance by minimizing oscillating motion impacts.
Implementation Method 1
Friction between the surfaces that rub against each other dissipates energy to reduce vibration of the component
Data Source
AI summary
An assembly includes a vehicle component. The assembly includes a body embedded in the vehicle component, the body defining a chamber and having an outer surface defining an intrusion extending toward the chamber and engaged with the vehicle component. The assembly includes a plurality of dampening particles within the chamber.