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http://dx.doi.org/10.20910/JASE.2022.16.3.63

Multibody Dynamic Model and Deployment Analysis of Mesh Antennas  

Roh, Jin-Ho (School of Aerospace and Mechanical Engineering, Korea Aerospace University)
Jung, Hwa-Young (Mechanical R&D (Space System), LIG Nex1)
Kang, Deok-Soo (Mechanical R&D (Space System), LIG Nex1)
Kang, Jeong-Min (Mechanical R&D (Space System), LIG Nex1)
Yun, Ji-Hyeon (Mechanical R&D (Space System), LIG Nex1)
Publication Information
Journal of Aerospace System Engineering / v.16, no.3, 2022 , pp. 63-72 More about this Journal
Abstract
The purpose of this paper was to understand the dynamics of deployment of large mesh antennas, and to provide a numerical method for determining the dynamic stiffness and the driving forces for the design. The deployment structure was numerically modeled using the frame elements. The eigenvalue analysis was demonstrated, with respect to the folded and unfolded configurations of the antenna. A multibody dynamic model was formulated with Kane's equation, and simulated using the pseudo upper triangular decomposition (PUTD) method for resolving the constrained problem. Based on the multibody model, the kinetics of the deployment, the motor driving forces, and the feasibility of the designed deployment structure were investigated.
Keywords
Deployable Reflector Antenna; Multibody Dynamics; Kane's Equation; PUTD(Pseudo Upper Triangular Decomposition);
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