Elastomeric Mounting Fitting for Vibration Isolation
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Solution Overview
Problem
Existing mounting fittings in vehicles and aircraft transmit vibrations from the platform to the mounted items, leading to wear, loosening of fasteners, reduced lifespan, and discomfort.
Innovation Solution
A mounting fitting with an elastomeric damping assembly integrated into the housing, comprising an inner and outer sleeve with a rubber member between them, 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 through the fitting to the object, causing wear, fastener loosening, and reduced lifespan
Solution Approach 1:
The patent introduces a damping assembly as an intermediary element between the housing and the attachment means. This damping assembly incorporates an elastomeric member that acts as a mediator to absorb and isolate vibrations, preventing them from being transmitted through the rigid mounting fitting to the mounted object, thereby reducing wear and extending fitting lifespan while maintaining mounting strength
Solution Approach 2:
The patent employs composite construction by combining rigid materials (housing, attachment means) with elastomeric damping materials. The damping assembly integrates an elastomeric member within a rigid housing structure, creating a composite system that simultaneously provides structural strength and vibration damping properties, resolving the contradiction between mounting strength and fitting durability
2Stability of the object's composition
If a rigid mounting fitting is used to securely mount an object to a surface, then the mounting stability is improved, but vibrations are transmitted through the fitting causing discomfort to passengers
Solution Approach 1:
The damping assembly serves as an intermediary vibration isolation layer between the rigid mounting structure and the mounted object. The elastomeric member within the damping assembly absorbs vibrational energy, preventing its transmission to the object and reducing passenger discomfort while maintaining the stability provided by the rigid housing and attachment means
Solution Approach 2:
The patent changes the physical parameters of the mounting system by introducing materials with different vibration transmission characteristics. The elastomeric member has high damping capacity and low vibration transmission, contrasting with the rigid materials, thereby altering the overall vibration behavior of the mounting assembly to reduce harmful vibrations while preserving stability
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, enhancing the durability and comfort of mounted items by absorbing external forces, while maintaining ease of assembly and adaptability.
Implementation Method 1
a 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
Implementation Method 2
incorporating an elastomeric member between the housing and the means for attachment
Data Source
Figure 1~2
Figure 3~4
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.