Tubular Vibration Damper Identification Layout for Balanced Spring Properties
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional tubular vibration damping devices face challenges in maintaining identification signs without compromising the spring properties and durability of the main rubber elastic body, particularly due to the adverse effects of paint-based identification methods and integral protrusions.
Innovation Solution
The solution involves forming a comprehensive pattern of first and second identification protrusions on the axial end surfaces of the main rubber elastic body, which are arranged to maintain weight balance on the central axis, thereby dispersing stress and strain, and avoiding directionality and anisotropy in spring properties, allowing for effective identification without compromising vibration damping performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If identification signs are formed by painting on the surface, then identification is achieved, but the painting process is complex and paint peeling occurs during transportation
Solution Approach 1:
The patent uses molded protrusions that replicate identification information directly on the rubber elastic body during manufacturing, eliminating the need for separate painting processes. The protrusions serve as durable, integrated copies of identification data that cannot peel or fade.
2Loss of information
If an annular identification protrusion is integrally formed on the main rubber elastic body, then identification is achieved, but spring properties and vibration damping properties are adversely affected
Solution Approach 1:
The patent divides the continuous annular protrusion into multiple discrete circumferential protrusions separated by gaps. This segmentation reduces the overall volume and stiffness contribution of the protrusions, minimizing their adverse effect on the spring properties and vibration damping performance while still providing visible identification.
3Loss of information
If an annular identification protrusion is integrally formed, then identification is achieved, but stress and strain concentrate during external force action, reducing durability
Solution Approach 1:
By segmenting the protrusions circumferentially with gaps between them, the patent prevents stress and strain from concentrating continuously around the entire circumference. The gaps act as stress relief zones, distributing mechanical loads more evenly and preventing crack propagation that would occur with a continuous annular protrusion.
4Loss of information
If identification protrusions are formed on one end surface only, then identification is achieved, but directionality and anisotropy in spring properties occur
Solution Approach 1:
The patent employs asymmetric distribution of protrusions on opposite end surfaces, where the pattern on one end differs from the other. This controlled asymmetry, combined with circumferential segmentation, allows identification while maintaining relatively uniform spring properties in all axial directions by balancing the structural asymmetry across both ends.
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 approach enables accurate identification and maintains the original vibration damping properties and durability of the tubular vibration damping device, facilitating easier installation by eliminating the need for precise alignment and reducing the risk of damage during transportation.
Implementation Method 1
an inner shaft member and an outer tubular member are connected by a main rubber elastic body
Data Source
AI summary
A tubular vibration damping device includes an inner shaft member and an outer tubular member connected by a main rubber elastic body. A plurality of first identification protrusions protruding outward are formed apart in a circumferential direction on one axial end surface of the main rubber elastic body, and a plurality of second identification protrusions protruding outward are formed apart in the circumferential direction on another axial end surface. The first identification protrusion and the second identification protrusion are arranged at positions differing from each other in the circumferential direction in an axial projection, and the first identification protrusion and the second identification protrusion have a comprehensive overall pattern in which weight balance is maintained on a central axis of the main rubber elastic body.