A Study on the Simulation of Flexible Link Mechanics. Development of Reduction Method and Two Nodes Element including large displacement.

This paper proposes improved methods for remotely operating orbital structures comprising connected flexible plates using real-time estimation. First, a hinge-connected plate model is introduced and a method of conducting estimation of dynamic behavior for operational spacecraft is defined. Then, a model-reduction method, which can be applied to targets with large-deformation behavior, is discussed. The proposed method is compared with the conventional one in terms of calculation cost and approximate accuracy. Next, an online parameter-identification method, that deals with the amplitude dependence of orbital flexible structures, is explained. A random decrement method is introduced to extract the natural vibration from the time history under the assumption of a random or environmental noise force. Using the extracted history, dynamic parameters are identified using an eigen system realization algorithm. Finally, these improved methods are introduced to the estimation system and a verification experiment is conducted using a ground experiment set that is representative of an extendable plate structure.

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“…The equation of motion for focused dynamics with both linear and nonlinear elements can be written according to Honke's method 9) as follows:…”

Section: Model Reduction For Large-deformation Structuresmentioning

confidence: 99%

Development of a Real-time Dynamics-Estimation System for Flexible Plate Structure Based on Telemetry Data

Honda

Nakanishi

Oda

2016

AEROSPACE TECHNOLOGY JAPAN

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Study on the frame structure modeling of the beam element formulated by absolute Nodal coordinate approach

2005

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A Study on the Simulation of Flexible Link Mechanics. Development of Reduction Method and Two Nodes Element including large displacement.

Cited by 2 publications

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Development of a Real-time Dynamics-Estimation System for Flexible Plate Structure Based on Telemetry Data

Development of a Real-time Dynamics-Estimation System for Flexible Plate Structure Based on Telemetry Data

Study on the frame structure modeling of the beam element formulated by absolute Nodal coordinate approach

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