TY - GEN
T1 - Investigation of dynamic characteristics of carbon composites by laser Doppler vibrometry
AU - Krasnoveikin, Vladimir A.
AU - Konovalenko, Ivan S.
PY - 2018/12/19
Y1 - 2018/12/19
N2 - Using a laser Doppler vibrometer, a noncontact measurement of the damping factor and vibration velocity of a rectangular, cantilevered carbon composite specimen under conditions of vibration load of varying intensity is carried out. The range of loading rates is 0-255 mm/s. It has been found that, as the loading rate increases to 5 mm/s, the value of the damping factor decreases nonlinearly, and, for larger values, it fluctuates near a certain constant value. With the approach of the scanning point of the sample to the place where it is fixed, the damping factor increases. It is shown that there is a certain distance from the place where the sample is fixed, for which an increase in the intensity of the applied vibrational load causes the smallest increase in the maximum value of vibration velocity.
AB - Using a laser Doppler vibrometer, a noncontact measurement of the damping factor and vibration velocity of a rectangular, cantilevered carbon composite specimen under conditions of vibration load of varying intensity is carried out. The range of loading rates is 0-255 mm/s. It has been found that, as the loading rate increases to 5 mm/s, the value of the damping factor decreases nonlinearly, and, for larger values, it fluctuates near a certain constant value. With the approach of the scanning point of the sample to the place where it is fixed, the damping factor increases. It is shown that there is a certain distance from the place where the sample is fixed, for which an increase in the intensity of the applied vibrational load causes the smallest increase in the maximum value of vibration velocity.
UR - http://www.scopus.com/inward/record.url?scp=85059428986&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85059428986&partnerID=8YFLogxK
U2 - 10.1063/1.5084485
DO - 10.1063/1.5084485
M3 - Conference contribution
AN - SCOPUS:85059428986
T3 - AIP Conference Proceedings
BT - Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2018
A2 - Ramasubbu, Sunder
A2 - Gorkunov, Eduard S.
A2 - Panin, Victor E.
PB - American Institute of Physics Inc.
T2 - 12th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2018
Y2 - 21 May 2018 through 25 May 2018
ER -