10905 Free Vibration Test of Mass-micro Spring System

2014 ◽  
Vol 2014.20 (0) ◽  
pp. _10905-1_-_10905-2_
Author(s):  
Takahiro AOKI ◽  
Shin MORISHITA
Keyword(s):  
Free Vibration ◽  
Vibration Test ◽  
Spring System ◽  
Free Vibration Test

Free Vibration Test for Damping Characteristics of Hybrid Polyester Matrix Composite with Carbon Particles

2016 ◽  
Vol 11 ◽  
pp. 1-6
Author(s):  
K. Karthik ◽  
R. Rohith Renish ◽  
I. Irfan Ahmed ◽  
T. Niruban Projoth
Keyword(s):  
Free Vibration ◽  
Hybrid Composites ◽  
Glass Fibers ◽  
Damping Ratio ◽  
Mode Shapes ◽  
Vibration Test ◽  
Engineering Structures ◽  
Carbon Filler ◽  
Damping Characteristics ◽  
Free Vibration Test

In this research aims to study the damping characteristics of hybrid polymer composite, which can be used in engineering structures and in many other applications. Hybrid composites are namely Glass fiber and carbon filler reinforced with polyester and epoxy matrix have been prepared by vacuum bag molding fabrication technique. Then the free vibration test were conducted using FFT analyzer with Lab VIEW software. The damping ratio and natural frequency were investigated for fabricated composites. Then through ANSYS, the mode shapes and natural frequencies were determined and the results were compared with experimental results. The damping ratio increases with increased volume fractions of E-glass fibers for both the types of polymer composites. Vibrations are concerned to large structures such as aircraft, as well as small structures such as electronic equipments.

scholarly journals Estimating the flexural rigidity of Arabidopsis inflorescence stems: Free-vibration test vs. three-point bending test

2020 ◽  
Vol 37 (4) ◽  
pp. 471-474
Author(s):  
Miyuki T. Nakata ◽  
Mao Nakao ◽  
Asuka Denda ◽  
Yusuke Onoda ◽  
Haruko Ueda ◽  
...  
Keyword(s):  
Free Vibration ◽  
Flexural Rigidity ◽  
Bending Test ◽  
Vibration Test ◽  
Three Point Bending ◽  
Inflorescence Stems ◽  
Free Vibration Test

A closed-form study on the free vibration of a grid joined by a mass-spring system

2014 ◽  
Vol 22 (4) ◽  
pp. 1147-1157 ◽  
Author(s):  
Seyed Mojtaba Hozhabrossadati ◽  
Ahmad Aftabi Sani ◽  
Masood Mofid
Keyword(s):  
Free Vibration ◽  
Closed Form ◽  
Spring System ◽  
Mass Spring
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