Dual-Flange Isolator Assembly for Tuned Vibration Damping
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Solution Overview
Problem
Existing damping and isolator assemblies fail to adequately damp or isolate vibrations, particularly at specific frequencies, and may not be configured for universal use.
Innovation Solution
The proposed isolator assembly includes a bracket connected to a first and second isolator via pins, with the isolators featuring radial flanges and legs that are configured to limit movement and absorb vibrations, allowing for customizable frequency behavior through varying leg numbers and configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing damping and isolator designs are used, then the structure is simple, but they do not adequately damp or isolate vibration at specific frequencies
Solution Approach 1:
The isolator is divided into multiple functional segments: a body portion containing damping material, multiple legs extending from the body, and radial flanges with specific geometric configurations. Each segment serves a specific function in vibration isolation at different frequencies, allowing the complex vibration control requirement to be met through modular design
Solution Approach 2:
Different portions of the isolator have different material properties and geometric characteristics tailored to specific frequency ranges. The damping material in the body portion provides broadband damping, while the legs with specific cross-sectional areas and lengths provide frequency-specific isolation. The radial flanges have varying outer diameters to control insertion depth and engagement with the aperture, creating localized frequency response characteristics
2Adaptability or versatility
If the isolator is designed with fixed geometry, then manufacturing is simple, but it cannot be configured for universal use across different applications
Solution Approach 1:
The isolator design allows for variation of key geometric parameters including the number of legs, cross-sectional area of legs, length of legs, outer diameters of radial flanges, and thickness of the damping material. By changing these parameters, the same basic isolator design can be adapted to different frequency requirements and application scenarios without requiring completely different designs
Solution Approach 2:
The isolator is designed with a universal mounting interface consisting of radial flanges that engage with apertures in the bracket. The body portion with damping material provides broadband vibration isolation, while the adjustable leg configurations allow the same isolator type to serve multiple frequency-specific applications. This universal design enables the isolator to be used across different vehicle components and vibration control scenarios
3Reliability
If the isolator allows free movement, then installation is simple, but it cannot effectively limit movement of the mass
Solution Approach 1:
The isolator is pre-configured with legs that have specific lengths and cross-sectional areas designed to engage with the bracket at predetermined positions. The radial flanges are designed with specific outer diameters that correspond to the aperture dimensions, creating a self-limiting insertion mechanism. This preliminary configuration ensures that when the isolator is installed, it automatically limits the movement of the mass without requiring additional adjustment mechanisms or complex installation procedures
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 configuration effectively absorbs and damps vibrations across a range of frequencies, providing improved isolation and movement limitation, suitable for various applications including vehicle components.
Implementation Method 1
Some damping or isolating designs do not adequately damp or isolate vibration
Implementation Method 2
a first isolator connected to the bracket, a second isolator connected to the bracket
Data Source
AI summary
An isolator assembly includes a bracket, a first isolator connected to the bracket, a second isolator connected to the bracket, and/or a mass connected to the bracket via the first isolator and the second isolator. The first isolator and the second isolator may include a plurality of legs. The first isolator may include a first radial flange and a second radial flange. The first radial flange and the second radial flange may be axially spaced from each other. An outer diameter of the first radial flange may be larger than an outer diameter of the second radial flange. A distance between the first radial flange and the second radial flange may correspond to a thickness of the bracket.