Smart Vibration Damping System for Intelligent Vibration Control of Civil and Mechanical structure

Substantially improve the safety and comfort of human as well as the reliability of practicing structures by reducing vibrations, vibration-induced structural failures and vibroacoustically induced structural-bom noises.

A research team from the Department of Applied Physics and Department of Civil and Structural Engineering of the Hong Kong Polytechnic University has developed a smart vibration damping system for intelligent vibration control of civil and mechanical engineering structures. This novel and innovation system consists of smart vibration sensoridampers (i.e. vibration dampers with embedded force sensors) interfaced with intelligent control electronics to provide a simple, cost-effective and reliable means for full implementation of real-time, closed-loop vibration control strategies to mitigate structural vibrations and the resulting failures and associated noises.

Special Features and Advantages

No need to install external force sensors
High degree of sensor-damper collocation
Real-time force sensing-while-damping capability
Ease of implementing closed-loop control strategies
Simple, cost effective and reliable

Applications

Vibration control of the stay cables in cable-stayed bridges. specifically in the world’s longest cable-stayed bridges under construction including 1) Stonecutters Bridge in Hong Kong with a main span of 1018m and 2) Sutong Bridge in China with a main span of 1088m
Vibration damping of automotive seats and suspension system.
Vibration isolate of automation and or precision equipment/ machines

Awards

The Best Student Research Paper, The 9th International Conference on Electro-Rheological (ER) Fluids and MagnetoRheological Suspensions, Bejing (September 2005)
Silver Award, the 15th China National Invention Exhibition (September 2005)

Principal Investigator

Prof. Derek Siu-wing OR

Department of Electrical Engineering

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Smart Vibration Damping System for Intelligent Vibration Control of Civil and Mechanical structure

Substantially improve the safety and comfort of human as well as the reliability of practicing structures by reducing vibrations, vibration-induced structural failures and vibroacoustically induced structural-bom noises.