Elastomer-Damped Mounting Fitting for Vibration Isolation
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Solution Overview
Problem
Existing mounting fittings transmit vibrations from a platform to mounted items, leading to wear, loosening of fasteners, and reduced comfort due to their rigid nature.
Innovation Solution
Incorporation of a damping assembly within the mounting fitting, comprising an elastomeric member between an inner and outer sleeve, to absorb and isolate vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid mounting fitting is used to securely mount an object to a surface, then the mounting strength and stability are improved, but vibrations from the surface are transmitted to the object causing wear, fastener loosening, and reduced comfort
Solution Approach 1:
An elastomeric member is introduced as an intermediary element between the mounting fitting and the object. This elastomeric member acts as a mediator that transmits the mounting function while filtering out harmful vibrations, thus resolving the contradiction between maintaining strong mounting and reducing vibration transmission.
Solution Approach 2:
The mounting fitting incorporates a composite structure combining rigid materials (for structural strength and mounting stability) with elastomeric materials (for vibration damping). This composite approach allows the fitting to simultaneously achieve both strong mounting and vibration isolation properties.
2Reliability
If a rigid mounting fitting is used to secure the object firmly, then the reliability of the mounting is improved, but the fasteners loosen over time due to vibration transmission
Solution Approach 1:
The elastomeric member serves as a protective intermediary that isolates the fasteners from vibrational forces. By positioning the elastomeric material between the vibration source and the fasteners, the system maintains reliable mounting while protecting the fasteners from loosening, thereby extending their service life.
3Stability of the object's composition
If a rigid mounting fitting is used to provide stable mounting, then the positional stability is improved, but the comfort of the mounted object is reduced due to vibration transmission
Solution Approach 1:
The elastomeric member acts as a vibration-filtering intermediary that allows the mounting fitting to maintain positional stability while preventing harmful vibrations from reaching the object. This resolves the contradiction by decoupling the stability function from the vibration transmission path.
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
Reduces vibration transmission, prolongs the life of fittings and fasteners, and enhances comfort by damping vibrations.
Implementation Method 1
a damping assembly defining a means for attachment of the object, in use, to the first portion and incorporating an elastomeric member between the housing and the means for attachment
Implementation Method 2
incorporating an elastomeric member between the housing and the means for attachment
Data Source
AI summary
A mounting fitting for mounting an object to a surface, the mounting fitting comprising an elongate fitting body (10) comprising a first portion (11) configured to be attached to the object, in use, and a second portion (12) configured to attach the fitting relative to the surface, in use, wherein the first portion defines a housing (104) and a damping assembly (100) mounted into the housing, the damping assembly defining means for attachment of the object, in use, to the first portion and incorporating an elastomeric member between the housing and the means for attachment.