Adjustable Tuned Liquid Damper for Efficient Vibration Control
Here’s PatSnap Eureka !
Summary
Problems
Current vibration damping solutions for tall buildings, such as tuned liquid dampers, are either expensive, require extensive customization, or are not adjustable, making them unsuitable for modern structures like slim skyscrapers, and often fail to efficiently dampen wind-induced vibrations due to limitations in frequency tuning and space constraints.
Innovation solutions
A tuned liquid damper with a membrane liquid-gas interface that includes a gas spring system with adjustable parameters, allowing for flexible membrane positioning and gas volume adjustment, which eliminates the contribution of gravity to stiffness, enabling tuning to lower frequencies and efficient vibration damping in slender buildings.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If a standard TLCD is used, then the damper can be tuned to a particular frequency, but it cannot be tuned to a different frequency without major retrofit and requires large horizontal space
Why choose this principle:
The patent applies dynamics by making the damper system adjustable and adaptable through movable membranes that can be repositioned to change the liquid column length and gas volume, enabling frequency retuning without major structural retrofit. The system transitions from a fixed configuration to a dynamically adjustable one.
Principle concept:
If a standard TLCD is used, then the damper can be tuned to a particular frequency, but it cannot be tuned to a different frequency without major retrofit and requires large horizontal space
Why choose this principle:
The patent segments the liquid column into adjustable sections using movable membranes that can be independently positioned. This segmentation allows the liquid column length to be modified in discrete steps, enabling frequency tuning while maintaining a compact vertical configuration.
Application Domain
Data Source
AI summary:
A tuned liquid damper with a membrane liquid-gas interface that includes a gas spring system with adjustable parameters, allowing for flexible membrane positioning and gas volume adjustment, which eliminates the contribution of gravity to stiffness, enabling tuning to lower frequencies and efficient vibration damping in slender buildings.
Abstract
A tuned liquid damper, including a first outer housing having two ends, the first end being open to the atmosphere and the second end being connected by a conduit to a gas-filled second outer housing. The conduit may be adapted to allow gas flow between the second end and the second outer housing. The tuned liquid damper may also include first and second membranes, each attached to the inside of the first outer housing, and a sealed compartment within the first outer housing defined by the first and second membranes. The sealed compartment may be at least partially filled with a liquid, which prevents gas flow through the first outer housing from the first end to the second end.