scholarly journals MAXIMUM DISPLACEMENT RESPONSE ESTIMATION FROM ACCERELATION RECORD FOR RANDOM EXCITATION

2010 ◽  
Vol 66 (3) ◽  
pp. 477-490 ◽  
Author(s):  
Masato ABE ◽  
Yozo FUJINO
Keyword(s):  
Random Excitation ◽  
Maximum Displacement ◽  
Displacement Response

Dynamic Response Analysis for the Solar-Powered Aircraft Composite Wing Panel with Viscoelastic Damping Layer

2011 ◽  
Vol 105-107 ◽  
pp. 491-494
Author(s):  
Tie Jun Liu ◽  
Yong Zhang ◽  
Gang Li ◽  
Feng Hui Wang
Keyword(s):  
Dynamic Response ◽  
Vibration Isolation ◽  
Viscoelastic Damping ◽  
Response Analysis ◽  
Aircraft Wing ◽  
Maximum Displacement ◽  
Displacement Response ◽  
Stiffened Structures ◽  
Solar Powered ◽  
Wing Panel

In design of solar powered aircraft wing panel, vibration properties of wing panel should be considered, especially for the peak value of dynamic response. In this research, a viscoelastic damping layer is built for vibration isolation, wing panel finite element models of stiffened and no-stiffened structures base on fiber-reinforced laminates with damping layer in the middle are built. Natural frequency and displacement response are analyzed with different thickness of damping layer and structures. Result shows natural frequencies decrease as thickness increased, and that of laminates are lower than stiffened structure. The maximum displacement response value decreased when thickness increased and that of laminates is higher than structured with stiffer. The presented work is helpful for type selection and designing of solar powered aircraft wing panel.

The Optimization of Damping of Four Configurations of a Vibrating Uniform Beam

1963 ◽  
Vol 85 (3) ◽  
pp. 259-264 ◽  
Author(s):  
Alex Henney ◽  
J. P. Raney
Keyword(s):  
Digital Computer ◽  
Empirical Formula ◽  
Response Curves ◽  
Maximum Displacement ◽  
Single Degree Of Freedom ◽  
Displacement Response ◽  
Single Degree ◽  
Uniform Beam ◽  
Computer Response ◽  
Analytical Expressions

Approximate analytical expressions for optimum damping for four configurations of forcing and damping a uniform beam were evaluated and the displacement responses for optimum damping values obtained from these expressions were calculated by a digital computer. It was found that the responses were accurately optimized. The sensitivity of maximum displacement response to deviation from optimum damping was investigated, but no analytical expressions relating change to deviation were obtained. An empirical formula, based upon consideration of the response of the beam as a single-degree-of-freedom system, was shown to be a good approximation of results obtained from the computer response curves. The four configurations investigated were relatively insensitive to changes in damping from optimum.

Analysis of Wind-Induced Vibration Control of Long-Span Space Structure

2011 ◽  
Vol 255-260 ◽  
pp. 1204-1208
Author(s):  
Zhi Qiang Zhang ◽  
Yan Chen ◽  
Guan Xing Su ◽  
Xing Gang Zhu
Keyword(s):  
Wind Tunnel Test ◽  
Time History ◽  
Space Structure ◽  
Wind Pressure ◽  
Filter Method ◽  
Maximum Displacement ◽  
Displacement Response ◽  
Long Span ◽  
History Of ◽  
Wind Induced Vibration

Based on improved linear regression filter method presented by Iwatani and wind tunnel test data, the program simulated 3-D time history of fluctuating wind pressure of Fuzhou Strait International Conference and Exhibition Center considering spatial correlation of wind loads, which is consistent with the object power spectrum .The simulation result is used in nodes of the structure to analyze response of wind-induced vibration. Analytical results show it has the maximum displacement response in 0° wind direction .Due to the installation of TMD, node displacement response of roof truss is reduced from 44.14mm to 33.16mm, with best reduction 26.67%.

scholarly journals Estimation Procedure of Nonlinear Maximum Displacement Response of Steel Bridge Pier in Seismic Design.

1997 ◽  
pp. 297-304
Author(s):  
Akinori Nakajima ◽  
Daisuke Miyama ◽  
Hisanori Otsuka ◽  
Takashi Sato ◽  
Motoyuki Suzuki
Keyword(s):  
Seismic Design ◽  
Estimation Procedure ◽  
Bridge Pier ◽  
Steel Bridge ◽  
Maximum Displacement ◽  
Displacement Response
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