scholarly journals Advanced time domain wave‐number sensing for structural acoustic systems. II. Active radiation control of a simply supported beam

1994 ◽  
Vol 95 (6) ◽  
pp. 3262-3272 ◽  
Author(s):  
J. P. Maillard ◽  
C. R. Fuller
Keyword(s):  
Time Domain ◽  
Wave Number ◽  
Simply Supported Beam ◽  
Active Radiation ◽  
Simply Supported ◽  
Radiation Control

Dimensionless wave numbers evolution of a three spans simply supported beam when the intermediate supports are moving along the whole beam

2021 ◽  
Vol 66 (1) ◽  
pp. 17-24
Author(s):  
Zeno-Iosif Praisach ◽  
Dorel Ardeljan ◽  
Constantin-Viorel Pașcu
Keyword(s):  
Vibration Mode ◽  
Frequency Equation ◽  
Wave Number ◽  
Continuous Beam ◽  
Dimensionless Wave Number ◽  
Simply Supported Beam ◽  
Simply Supported ◽  
Continuous Beams ◽  
Maximum Value ◽  
Wave Numbers

Continuous beams simply supported with several intermediate supports are very common in engineering achievements everywhere. The paper shows the evolution of the dimensionless wave number in 3D format, respectively of the eigenfrequencies for a continuous beam with three openings when the intermediate supports take any position inside the beam. The frequency equation for calculating the dimensionless wave number is presented and the modal function is given with an example for the case where the eigenfrequency has the maximum value at fist vibration mode.

Damage Identification of Simply Supported Beam Bridge Based on Time Series Analysis

2012 ◽  
Vol 236-237 ◽  
pp. 617-621
Author(s):  
Han Bing Liu ◽  
Yan Jun Song ◽  
Guo Jin Tan ◽  
Yan Yi Sun
Keyword(s):  
Time Series ◽  
Time Series Analysis ◽  
Dynamic Response ◽  
Time Domain ◽  
Damage Identification ◽  
Simply Supported Beam ◽  
Simply Supported ◽  
Series Analysis ◽  
Wide Range ◽  
Beam Bridge

Presently, the study on damage identification of bridges is very popular and it has a wide range of applications. Also the related theory and technology are constantly developing and mature. The researches based on the dynamic response of bridge in frequency domain is more, but the dynamics theory is complex and difficult for the engineering personnel to grasp. On the opposite, although the damage identification method based on the dynamic response of bridge in time domain is easy to understand, it is difficulty for applications. The Auto Regressive Moving Average model (ARMA) of time series analysis can be used to settle this problem. It is a not very abstruse theory and it is already apply for the system identification of some Structures. In this paper, we use time series analysis for the damage identification of simply supported beam bridge combined with its own dynamic response in time domain.

scholarly journals Study on the improvement of the torsional bracing system designing process for steel shaped I simply supported beam bridge

2021 ◽  
Vol 682 (1) ◽  
pp. 012045
Author(s):  
K V Nguyen ◽  
C A L Huynh ◽  
H D H Nguyen ◽  
N D Van ◽  
N T Nguyen ◽  
...  
Keyword(s):  
Simply Supported Beam ◽  
Simply Supported ◽  
Bracing System ◽  
Beam Bridge
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