Soccer ball modal analysis using a scanning laser doppler vibrometer (SLDV)

2007 ◽  
Vol 10 (1) ◽  
pp. 49-54 ◽  
Author(s):  
J. Ronkainen ◽  
A. Harland
Keyword(s):  
Modal Analysis ◽  
Laser Doppler Vibrometer ◽  
Laser Doppler ◽  
Scanning Laser ◽  
Soccer Ball ◽  
Scanning Laser Doppler Vibrometer

scholarly journals Implementation of the Scanning Laser Doppler Vibrometer Combined with a Light-Weight Pneumatic Artificial Muscle Actuator for the Modal Analysis of a Civil Structure

2012 ◽  
Vol 19 (3) ◽  
pp. 421-431 ◽  
Author(s):  
K. Deckers ◽  
P. Guillaume ◽  
C. Vuye ◽  
D. Lefeber
Keyword(s):  
Modal Analysis ◽  
Laser Doppler Vibrometer ◽  
Artificial Muscle ◽  
High Sensitivity ◽  
Setup Time ◽  
Laser Doppler ◽  
Scanning Laser ◽  
Artificial Muscles ◽  
Scanning Laser Doppler Vibrometer ◽  
Pneumatic Artificial Muscles

The identification of the modal parameters of bridges and other large civil constructions has become an important research issue. Different approaches have been proposed depending on the excitation used: ambient excitations (due to wind, traffic, …) or artificial excitations (e.g. impact test with heavy drop weights). In practice it turns out that not all modes are well excited by the ambient forces. Hence the application of an artificial actuator is advisable. The problem is that larger constructions often require large and heavy excitation devices, which are hard to manipulate. Another difficulty encountered in performing a modal analysis on large civil constructions is the necessity for a large number of high sensitivity sensors. Consequently a large number of cables has to be installed resulting in a large setup time.This paper is a proof-of-concept which demonstrates the possibility of using lightweight Pneumatic Artificial Muscles combined with the scanning laser Doppler vibrometer to perform a modal analysis on a civil structure. This combination allows for an important reduction in setup time and allows for sine testing as well as the application of broadband signals such as periodic chirps, true noise or multisines.

Identification of pavement material properties using a scanning laser Doppler vibrometer

2016 ◽  
Author(s):  
Navid Hasheminejad ◽  
Cedric Vuye ◽  
Wim Van den Bergh ◽  
Joris Dirckx ◽  
Jari Leysen ◽  
...  
Keyword(s):  
Material Properties ◽  
Laser Doppler Vibrometer ◽  
Laser Doppler ◽  
Scanning Laser ◽  
Scanning Laser Doppler Vibrometer ◽  
Pavement Material
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