Resilient Ribs for Pressure Surge Isolation in Retaining Members
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Solution Overview
Problem
Existing retaining members fail to effectively isolate pressure surges transmitted through lines from supports, leading to unwanted vibrations in applications like brake lines on motor vehicles, as they do not adequately absorb or distribute mechanical loads.
Innovation Solution
A plastic retaining element with a basic body and resilient ribs of varying overhangs, where ribs with larger overhangs have a lower spring constant and are protected by those with smaller overhangs, ensuring improved acoustic isolation and self-centering without damage from overload, and the ribs are oriented in parallel or circumferentially to support lines effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid basic body is used to provide structural support, then mounting stability is improved, but pressure surge transmission to the support increases
Solution Approach 1:
The retaining element is segmented into a rigid basic body for structural support and separate resilient ribs for vibration isolation. The ribs are formed as distinct elements within the line seating, allowing them to independently absorb pressure surges while the basic body maintains mounting stability.
Solution Approach 2:
Different parts of the retaining element have different mechanical properties: the basic body is rigid for stable mounting, while the ribs are resilient with varying spring constants to locally absorb vibrations. The ribs with larger overhangs have smaller spring constants for vibration absorption, while the basic body remains rigid for structural support.
2Object-generated harmful factors
If ribs with larger overhangs and smaller spring constants are used to reduce pressure transmission, then acoustic isolation is improved, but the ribs become more sensitive to mechanical loads and may be damaged
Solution Approach 1:
The ribs with smaller overhangs and larger spring constants act as protective elements that engage before the more vulnerable ribs with larger overhangs. These stiffer ribs cushion against extreme mechanical loads, preventing damage to the softer, more vibration-absorbent ribs during normal operation.
Solution Approach 2:
The ribs are designed with varying overhang lengths and corresponding spring constants to create a gradient of mechanical properties. Ribs with larger overhangs have smaller spring constants for vibration absorption, while ribs with smaller overhangs have larger spring constants for protection, creating a parameter-based differentiation that solves both vibration isolation and durability requirements.
3Reliability
If multiple ribs with different overhangs are used to protect against overload, then reliability is improved, but the device complexity increases
Solution Approach 1:
Multiple ribs with different protective functions are merged into a single integrated retaining element. The ribs with different overhangs and spring constants are formed as part of the same structure, combining vibration absorption and overload protection functions in one component rather than requiring separate elements.
Solution Approach 2:
The rib system is self-regulating and self-protecting. When overloaded, the ribs automatically engage in a sequence based on their spring constants, with stiffer ribs engaging first to protect softer ribs. The system serves itself by distributing loads according to each rib's mechanical properties without external control or intervention.
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 significantly enhances acoustic isolation by reducing pressure surge transmission to the support while protecting the ribs from damage, maintaining excellent isolation even under mechanical stress, and ensuring the ribs absorb forces effectively.
Implementation Method 1
resilient ribs which project beyond the inside at different overhangs. The ribs having the larger overhang exhibit a smaller spring constant than does the basic body
Implementation Method 2
the ribs having the smaller overhang preferably exhibit a spring constant which is at least as large or is larger than do the ribs having the larger overhang
Data Source
AI summary
A retaining member for holding and supporting an elongated element from a support includes a base portion and a holding portion. The base portion is attachable to the support. The holding portion is connected to the base portion and has a recess for holding the elongated element therein. The recess includes a tubular portion and a plurality of spaced ribs extending radially inwardly from the tubular portion to have different radial heights.