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Applications and challenges of ASF artificial spring damping materials in rail transit

Classification:Technology Insight
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Release time:2024-07-26 16:11
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【Summary】Introduction of applications and challenges of ASF artificials spring damping material in rail transit

Applications and challenges of ASF artificial spring damping materials in rail transit

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Applications and challenges of ASF artificial spring damping materials in rail transit

【Summary】Introduction of applications and challenges of ASF artificials spring damping material in rail transit

Classification:Technology Insight
Author:
Source:
Release time:2024-07-26 16:11
Views：

Details

With the rapid development of urbanization, rail transit, as an important part of urban public transportation, carries huge transportation pressure. However, rail transit is also faced with many problems during operation, the most prominent of which is vibration and noise. Excessive impact will not only bring hidden dangers to the safe operation of rail transit, but also cause damage and failure of equipment, such as long-term vibration of key components such as rail bed, engine, transmission system, which will lead to performance degradation and even lead to safety accidents.

1 Disadvantages of traditional materials

In the field of rail transit, traditional elastic materials such as rubber and EVA are widely used in vibration and noise reduction. However, these materials have many drawbacks. First of all, their rebound rate and damping coefficient are low, which can not meet the high requirements of vibration reduction effect. Secondly, the durability of these materials is not strong, easy to wear and aging, need to be replaced frequently, increasing maintenance costs. In addition, the traditional elastic material is highly sensitive to temperature change, easy to deform at high temperature, and easy to embrittlement at low temperature, which affects the performance stability. More importantly, most dampers have complex structural design, which increases the difficulty of manufacturing and maintenance.

2 Design challenges in the application of high-performance materials to rail transit

The selection of suitable vibration damping materials in the field of rail transit needs to consider many aspects such as equipment vibration, sensitive environment, overall coordination and production or maintenance costs. In order to ensure the safe and efficient operation of rail transit vehicles, engineers and enterprises need to face the following design challenges.

Performance optimization challenges: high-performance vibration damping materials need to achieve high elasticity, low modulus, low Poisson ratio and other performance requirements to ensure that they can provide excellent vibration isolation and noise reduction effects in different application scenarios.

The challenge of thermal stability and fatigue resistance:the equipment has long-term vibration and the outdoor environment changes greatly, so the vibration damping material needs to have good thermal stability and fatigue resistance to ensure that the vibration reduction and isolation effect is maintained at high temperatures, and there is no embrittle or performance degradation at low temperatures.

Integration and compatibility challenges: The installation of industrial equipment and vehicles is complex, and the size, shape and interface of vibration damping materials need to be compatible with the equipment components to ensure smooth installation and connection, while the overall layout and coordination with the equipment or other parts to achieve optimal vibration isolation.

Cost control and production efficiency challenges: While meeting performance requirements, it is necessary to achieve lightweight design and good regulation to reduce production costs and improve production efficiency.

3 ASF Artificial spring damping material solution

ASF artificial spring vibration damping material is innovated and developed by ACF Soft Valley Laboratory, also known as ACF elastomers, which belongs to the field of new materials. Compared with rubber and silicone, it has the advantages of high elastic weight, low modulus, low Poisson ratio, excellent vibration isolation effect, environmental protection and antibacterial, high thermal stability, fatigue resistance, etc., and has been widely used in hand-held power tools. Small household appliances (wall breaking machine) precision product production (embroidery machine), rail transit (subway track bed) and so on.

ASF artificial spring damping material

ASF artificial spring damping materials offer the following advantages:

High elasticity: with ultra-high rebound rate, elasticity up to 80%, the material can recover quickly after being stressed and the compression permanent deformation is small, and the compression deformation is excellent.

Comparison of properties of ASF materials with other elastic materials

High efficiency in vibration and noise reduction: Ultra-high compression ratio effectively reduces vibration and noise transmission, and improves stress isolation and sealing.

High temperature resistance and stability: sensitive environment adaptability is strong, the material is not easy to deform under high temperature conditions, stable energy absorption.

picture

Stress-strain curves of ACF materials at different temperatures

Wear resistance and fatigue resistance: very low dynamic and static stiffness ratio, small change in material stiffness, reduce heat generation.

The product form is diverse: can impact the sheet shape, can be molded 3D modeling, can be 3M glue after die-cutting small parts.

ASF material design in various shapes

ASF artificial spring vibration damping material meets the requirements of strong vibration damping, high load bearing, compression resistance and lightweight, providing a strong support for the field of rail transit. Its application can protect the structure of rail trains, improve operational stability, reduce noise pollution, and provide passengers with a more comfortable and safe travel experience.

Train track bed structure

With its excellent performance and wide application prospect, ASF artificial spring damping material has shown great potential in the field of rail transit. In the face of many challenges in the field of rail transit, ASF artificial spring vibration damping material provides a strong guarantee for the safe and efficient operation of rail transit through continuous optimization of performance, improving thermal stability and fatigue resistance, achieving integration and compatibility, and controlling cost and production efficiency. With the continuous progress of ACF technology, ASF artificial spring damping materials will play a more important role in the field of rail transit.

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Applications and challenges of ASF artificial spring damping materials in rail transit

Applications and challenges of ASF artificial spring damping materials in rail transit

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