Open AccessResearch on damping addition and vibration reduction technology of frame aerospace electronic chassis
Author(s) -
Yu Zhang,
Bolin Zhang
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1754/1/012050
Subject(s) - chassis , vibration , aerospace , stiffness , damping ratio , modal , structural engineering , engineering , frame (networking) , mechanical engineering , automotive engineering , materials science , acoustics , physics , aerospace engineering , composite material
This paper poses a box instrumentation in aerospace electronic chassis TO-5 encapsulation relay under the action of impact environmental load state of reverse fault mode, by reasonable single frames of viscoelastic damping materials added, increasing box style structure between the PCB mechanical installation interface damping ratio and frequency ratio, finally realizes the transfer rate is reduced, achieve instrumentation relay PCB, lower impact acceleration response. By adding damping cushion to the frame machine installation interface, the load transfer path of impact mechanics is optimized to reduce the installation stiffness and change the fundamental frequency characteristics of the whole machine.