A Vibration Suppression Method Using Root Rotation of Flexible Parts
A flexible component and vibration suppression technology, applied in mechanical vibration control, non-electric variable control, motor vehicles, etc., to achieve the effect of reducing disturbance
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[0038] This embodiment is a satellite with one flexible member. The flexible part can perform three-dimensional rotation relative to the satellite connection root.
[0039] 1. Establishment of satellite dynamics model with flexible rotating parts.
[0040] In this embodiment, the vibration model of the flexible part takes the first 5 orders, and the satellite model parameters are established as follows:
[0041]
[0042]
[0043]
[0044] Ω S =diag{0.67 0.89 1.51 2.54 4.53},
[0045] ζ=diag{0.005 0.005 0.005 0.005 0.005}.
[0046] In the calculation, the initial attitude angle of the satellite is zero, the initial angular velocity is zero, the initial value of the second-order modal coordinate of the flexible component vibration is 0.1, and the initial value of the second-order to fifth-order modal coordinates is zero. Simulates the case where a flexible part has an initial vibrational displacement.
[0047] 2. Calculation of root rotation control of flexible com...
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