The effect of energy dissipation in the material on the vibrations of an elastic element under random excitation

1966 ◽  
Vol 2 (11) ◽  
pp. 52-57
Author(s):  
V. M. Goncharenko
Keyword(s):  
Energy Dissipation ◽  
Elastic Element ◽  
Random Excitation

Parameter Optimization of Liquid Viscous Damper Based on Energy and Control Indexes under Random Excitation

2015 ◽  
Vol 777 ◽  
pp. 64-68
Author(s):  
Li Xian Wang ◽  
Qi Yang Liu ◽  
Sheng Kui Di ◽  
Chang Sheng Xiang
Keyword(s):  
Energy Dissipation ◽  
Structural Control ◽  
Seismic Waves ◽  
Random Excitation ◽  
Steel Tube ◽  
Arch Bridge ◽  
Energy Evaluation ◽  
Evaluation Functions ◽  
Optimization Parameters ◽  
Control Evaluation

The damper parameter of a concrete-filled steel tube arch bridge is optimized. Random Fourier spectrum based on physical model is used to synthesis the random time-domain excitation. Four evaluation functions have been constructed as optimization of the objective functions based on energy dissipation and structural control indexes. Comparing two energy evaluation function combinations and traditional control evaluation functions, the damper optimization parameters have been obtained. Result shows that: Optimized damper parameters of concrete-filled steel tubular arch bridge under various seismic waves have high damping effect. After introducing the energy dissipation indexes, evaluation functions avoided the extreme value disadvantages of the traditional target, the final optimization results could be more economical and practical.

Study on Reliability of Structure with Energy Dissipation Dampers

2011 ◽  
Vol 383-390 ◽  
pp. 6396-6403
Author(s):  
Zhi Qiang Bai ◽  
Wen Feng Liu ◽  
Huan Qiang Luan
Keyword(s):  
Energy Dissipation ◽  
Random Excitation ◽  
Viscoelastic Dampers ◽  
Random Method ◽  
Determinant Factor

In this paper, Kanai-Tajimi spectrum as earthquake random excitation is applied. A Structure with Viscoelastic Dampers is analyzed by random method and reliability of energy dissipation is presented. The effect of energy dissipation of viscoelastic dampers added to building is studied under four working situations. The result of calculation indicates that the reliability of energy dissipation will be higher if more dampers are installed. Supposing that the quantity of dampers is fixed, the reliability of energy dissipation will be decrescent if energy dissipation degree is larger. If the reliability of energy dissipation is fixed, the dampers parameter is the determinant factor.

Energy Dissipation Processes of Singlet Excited 1-Hydroxyfluorenone and its Hydrogen-Bonded Complex with N-Methylimidazole

2004 ◽  
Author(s):  
Krisztina Sebők-Nagy ◽  
László Biczók ◽  
Akimitsu Morimoto ◽  
Tetsuya Shimada ◽  
Haruo Inoue
Keyword(s):  
Energy Dissipation ◽  
Dissipation Processes ◽  
Hydrogen Bonded

ENERGY DISSIPATION FOR BOUNCING DROP

2018 ◽  
Author(s):  
Praveen K. Sharma ◽  
Harish N Dixit
Keyword(s):  
Energy Dissipation
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