Experimental Research on Vibration Control of High-rise Petrochemical Equipment with Lumped-mass Tuned Mass Damper

2012 ◽  
Vol 1 (1) ◽  
pp. a38
Actuators ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 44
Author(s):  
Qi Wang ◽  
Hong-Nan Li ◽  
Peng Zhang

High-rise structures are normally tall and slender with a large height-width ratio. Under the strong seismic action, such a structure may experience violent vibrations and large deformation. In this paper, a spring pendulum pounding tuned mass damper (SPPTMD) system is developed to reduce the seismic response of high-rise structures. This SPPTMD system consists of a barrel limiter with the built-in viscoelastic material and a spring pendulum (SP). This novel type of tuned mass damper (TMD) relies on the internal resonance feature of the spring pendulum and the collision between the added mass and barrel limiter to consume the energy of the main structure. Based on the Hertz-damper model, the motion equation of the structure-SPPTMD system is derived. Furthermore, a power transmission tower is selected to evaluate the vibration reduction performance of the SPPTMD system. Numerical results revealed that the SPPTMD system can effectively reduce structural vibrations; the reduction ratio is greater than that of the spring pendulum. Finally, the influence of the key parameters on the vibration control performance is conducted for future applications.


Author(s):  
Thuan Nguyen ◽  
Nanako Miura ◽  
Akira Sone

Tuned mass damper (TMD) device has been a popular vibration control system for moderns as high-rise building, bridge to suppress excessive vibration due to environment or human loading. Moreover, multiple tuned mass dampers have received much attention in the researched. An optimal design theory for bridge implemented with multiple TMD devices is proposed in this paper. The proposed method chooses the objective function with the constraints on the peaks which are at the same heights over frequency ranges of interest. This proposed method successfully reduces vibration of bridge traveled by a car. In a future study, we will extend the optimal design theory for the cases with more than one car and the bridge under seismic loading.


2012 ◽  
Vol 446-449 ◽  
pp. 3490-3494
Author(s):  
Ju Yun Yuan ◽  
Zhi Hua Dong

Based on brief introduction of the vibration control theory of tuned mass damper (TMD) and its development course, this paper puts forward the basic method in model analysis of TMD for vibration control under wind load in high-rise buildings. After analyzing the recent applications of TMD in high-rise buildings at home and abroad, the developing trend and problems to be solved in TMD design and construction are also pointed out.


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