Multi-Chamber Pipe Shock Absorber for Vibration Damping

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Solution Overview

Problem

Existing vibration reduction methods for pipelines and shafting systems, such as improving support stiffness and using shock absorbers, fail to collectively address vibration issues, leading to vibration amplification and interference with terminal equipment and power sources.

Innovation Solution

A damping shock absorber with a main body and inner chambers filled with granular damping medium, strategically positioned and configured to absorb vibrations, combined with external support brackets and buffer brackets, and a design method involving vibration testing and simulation to optimize installation and parameters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If shock absorbers are installed on the pipeline to absorb vibration, then vibration propagation is reduced, but the support stiffness of the pipeline cannot be improved

Engineering Contradiction:

Improvevibration propagationVSAvoidsupport stiffness

Core Design Contradiction:

Object-affected harmful factorsVSStrength

Solution Approach 1:

The shock absorber is divided into multiple independent chambers (first chamber, second chamber, third chamber) that are segmented along the pipeline. Each chamber contains damping medium and can independently absorb vibrations, allowing the system to maintain stiffness while reducing vibration propagation through distributed damping zones.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The damping medium (granular material or liquid) acts as an intermediary between the pipeline and the shock absorber housing. It transfers vibrational energy from the pipeline and dissipates it through internal friction and particle interaction, enabling vibration absorption without compromising the structural stiffness of the pipeline support.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If multiple chambers are added to the shock absorber to improve vibration damping, then vibration absorption capability increases, but the device complexity increases

Engineering Contradiction:

Improvevibration damping capabilityVSAvoidshock absorber structure

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Multiple chambers perform the same vibration damping function simultaneously, each chamber acting as an independent vibration absorption unit. This modular approach increases damping capability without requiring fundamentally different mechanisms, thereby limiting the increase in complexity to simple replication of proven chamber designs.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Object-affected harmful factors

If granular damping medium is used in the shock absorber, then vibration absorption effectiveness improves, but the manufacturing and filling process becomes more complex

Engineering Contradiction:

Improvevibration absorption effectivenessVSAvoidfilling process

Core Design Contradiction:

Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The granular damping medium is nested within flexible bags that are placed inside the rigid shock absorber housing. This nested structure protects the granular material during handling and installation, simplifying the manufacturing and filling process while maintaining the vibration absorption effectiveness of the granular medium.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The shock absorber uses a composite structure combining flexible bags (containing granular damping medium) with a rigid housing. This composite approach allows the granular material to be easily contained and installed while providing structural support and protection, thereby improving ease of manufacture without sacrificing vibration absorption effectiveness.

Inventive Principle:

Principle #40Composite materials

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

Effectively reduces vibrations in pipelines and shafting systems, preventing damage and interference, ensuring smooth operation and safety while enhancing noise reduction.

Implementation Method 1

a damping medium filled in the main body... absorb the vibration generated by the pipeline

Methodology Applied

Scientific EffectFriction: Friction

Implementation Method 2

absorbing the vibration generated by the pipeline to reduce vibration propagation

Methodology Applied

Scientific EffectVibration damping: Damping

Data Source

PatentUS12498010B2Damping shock absorber and vibration reduction design method

Publication Date: 2025.12.16 XIAMEN ZHEN-WEI TECH CO LED

AI summary

A damping shock absorber includes a pipe and a plurality of shock absorbers configured on the pipe. The shock absorber includes a main body sleeved on the outer periphery of the pipe and a damping medium filled in the main body. The main body is provided with an inner cavity, and the inner cavity is divided into a plurality of chambers for placing the damping medium separately. A method for designing the damping shock absorber, wherein the main body is filled with the damping medium, such that the shock of the pipe or a shaft body is reduced, ensuring the smooth operation of the pipe or the shaft body, and further ensuring the safety and efficiency of the pipe or the shaft body in a working process. The damage to the pipe or the shaft body and the shock interference to other linked apparatuses are greatly avoided.