TY - GEN
T1 - Vibration characteristics of a beam bearing high accelerations and jerks in a triaxial centrifuge
AU - Yahong, Zhang
AU - Mei, Yang
AU - Gege, Liu
AU - Shenglai, Chen
AU - Wenchao, Lu
AU - Xinong, Zhang
N1 - Publisher Copyright:
© Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019. All rights reserved.
PY - 2019
Y1 - 2019
N2 - The load of the rapid maneuver aircraft is characterized by high accelerations, high jerks and multiple directions in space. The ground load simulation test of the aircraft is usually carried out on a triaxial centrifuge. In this paper, considering the three-axis centrifugal motion and elastic vibration of the beam, velocity and acceleration model of the beam are established by the method of motion synthesis and matrix rotation. The acceleration model of the beam is the basis of the load analysis and calculation of the dynamic responses. Dynamic equations of the beam in the three-axis centrifugal environment is established. Based on the dynamic equations, responses of the beam is calculated at the cases of different motion parameters. The influence of the accelerations and jerks on the responses is analyzed. The results show that both the accelerations and jerks can result deformation on the beam. Jerks can cause vibration of the beam and a sudden change of acceleration will induce a significant vibration of the beam. For the beam, a sudden change of acceleration just likes an impact force loading on the beam.
AB - The load of the rapid maneuver aircraft is characterized by high accelerations, high jerks and multiple directions in space. The ground load simulation test of the aircraft is usually carried out on a triaxial centrifuge. In this paper, considering the three-axis centrifugal motion and elastic vibration of the beam, velocity and acceleration model of the beam are established by the method of motion synthesis and matrix rotation. The acceleration model of the beam is the basis of the load analysis and calculation of the dynamic responses. Dynamic equations of the beam in the three-axis centrifugal environment is established. Based on the dynamic equations, responses of the beam is calculated at the cases of different motion parameters. The influence of the accelerations and jerks on the responses is analyzed. The results show that both the accelerations and jerks can result deformation on the beam. Jerks can cause vibration of the beam and a sudden change of acceleration will induce a significant vibration of the beam. For the beam, a sudden change of acceleration just likes an impact force loading on the beam.
KW - Dynamic characteristic
KW - High accelerations and jerks
KW - Triaxial centrifuge
UR - https://www.scopus.com/pages/publications/85084011506
M3 - 会议稿件
AN - SCOPUS:85084011506
T3 - Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019
BT - Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019
PB - Canadian Acoustical Association
T2 - 26th International Congress on Sound and Vibration, ICSV 2019
Y2 - 7 July 2019 through 11 July 2019
ER -