Impact force identification in structures using time-domain spectral finite elements

2020 ◽  
Vol 231 (11) ◽  
pp. 4513-4528
Author(s):  
Raghavendra B. Kulkarni ◽  
S. Gopalakrishnan ◽  
Manish Trikha
Keyword(s):  
Finite Elements ◽  
Time Domain ◽  
Impact Force ◽  
Force Identification ◽  
Spectral Finite Elements

Group sparse regularization for impact force identification in time domain

2019 ◽  
Vol 445 ◽  
pp. 44-63 ◽  
Author(s):  
Baijie Qiao ◽  
Zhu Mao ◽  
Jinxin Liu ◽  
Zhibin Zhao ◽  
Xuefeng Chen
Keyword(s):  
Time Domain ◽  
Impact Force ◽  
Sparse Regularization ◽  
Force Identification

An enhanced sparse regularization method for impact force identification

2019 ◽  
Vol 126 ◽  
pp. 341-367 ◽  
Author(s):  
Baijie Qiao ◽  
Junjiang Liu ◽  
Jinxin Liu ◽  
Zhibo Yang ◽  
Xuefeng Chen
Keyword(s):  
Regularization Method ◽  
Impact Force ◽  
Sparse Regularization ◽  
Force Identification

scholarly journals Instrumentation for mechanical vibrations analysis in the time domain and frequency domain using the Arduino platform

2016 ◽  
Vol 38 (1) ◽  
Author(s):  
Marcus Varanis ◽  
Anderson Langone Silva ◽  
Pedro Henrique Ayres Brunetto ◽  
Rafael Ferreira Gregolin
Keyword(s):  
Signal Processing ◽  
Finite Elements ◽  
Time Domain ◽  
Good Accuracy ◽  
Low Cost ◽  
Analytical Models ◽  
Experimental Setup ◽  
Mechanical Vibrations ◽  
Python Language ◽  
The Time Domain

In this paper, we use the Arduino platform together with sensors as accelerometer, gyroscope and ultrasound, to measure vibrations in mechanical systems. The main objective is to assemble a signals acquisition system easy to handle, of low cost and good accuracy for teaching purposes. It is also used the Python language and its numerical libraries for signal processing. This paper proposes the study of vibrations of a beam, which is measured by position, velocity and acceleration. An experimental setup was implemented. The results obtained are compared with analytical models and computer simulations using finite elements. The results are in agreement with the literature.

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