Adjustable Damping System for Micro-Vibration Control
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Solution Overview
Problem
Existing vibration damping devices are ineffective in addressing micro-vibrations of around 3 Hz, which are critical for precision instruments and sensitive environments.
Innovation Solution
A vibration damping construction system featuring a first construction body with a reaction surface and groove wall, a second construction body with a lower concrete structure and a damping unit, including a chamber and gas chamber separated by a wall, allowing for adjustment of the center of gravity to absorb vibrations through a cut-off valve and fluid or gas manipulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional damping devices are used, then general vibration damping is achieved, but micro-vibrations of about 3 Hz cannot be effectively damped
Solution Approach 1:
The damping device employs adjustable damping coefficients that can be modified based on vibration frequency. The damping force is not fixed but can be dynamically adjusted through the damping coefficient adjustment mechanism, allowing the device to adapt to different vibration frequencies including micro-vibrations around 3 Hz.
Solution Approach 2:
The invention changes the damping parameter (damping coefficient) to optimize performance for specific frequency ranges. By adjusting the damping coefficient, the device can effectively target and dampen micro-vibrations at 3 Hz while maintaining effectiveness across broader frequency ranges from 1 to 100 Hz.
2Reliability
If the damping force is increased to improve damping effectiveness, then vibration absorption improves, but the device becomes less adaptable to different vibration frequencies
Solution Approach 1:
The damping coefficient is made adjustable rather than fixed, allowing the damping force to be dynamically modified. This enables the device to maintain high damping effectiveness while adapting to different vibration frequencies by optimizing the damping coefficient for each frequency range.
Solution Approach 2:
The damping device is divided into multiple damping units, each potentially with different damping coefficients. This segmentation allows different parts of the system to handle different frequency ranges, with some units optimized for micro-vibrations and others for higher frequency vibrations.
3Device complexity
If a fixed damping coefficient is used, then the device structure is simple, but it cannot effectively dampen micro-vibrations at specific frequencies
Solution Approach 1:
The damping coefficient adjustment mechanism adds controlled complexity to enable dynamic adaptation. While the basic structure remains relatively simple, the ability to adjust the damping coefficient provides the necessary functionality to effectively dampen micro-vibrations at specific frequencies like 3 Hz.
Solution Approach 2:
The invention implements damping adjustment capability that may be more complex than a simple fixed damping system, but this partial addition of complexity (adjustment mechanism) provides excessive damping capability that ensures effective micro-vibration damping across the required frequency range.
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 environmental micro-vibrations, supporting precision instruments by compensating for vertical micro-vibrations and maintaining stability across a range of frequencies from 3 to 100 Hz.
Implementation Method 1
the damping unit receives a reaction force from the reaction surface to support the second construction body and to absorb a vibration from the first construction body
Implementation Method 2
the damping unit can be introduced into or discharged from the chamber or gas can be introduced into or discharged from the gas chamber to adjust a center of gravity of the second construction body so as to absorb vibrations from the environment
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The present invention provides a vibration damping construction system including a first construction body (3), a second construction body (2), and a damping unit (4). The first construction body includes a reaction surface (35). The second construction body (2) is accommodated in the first construction body. The damping unit (4) is disposed between the second construction body (2) and the reaction surface (35) of the first construction body (3) for reducing the vibration transferred from the first construction body.