Experiment and analysis of a space tether with pendulum-type elastic metamaterials

Yoon, Joo Young; Song, Weon Keun; Park, No Cheol

doi:10.1016/j.ijmecsci.2020.105557

Cited by 10 publications

(3 citation statements)

References 32 publications

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“…According to Lyapunov stability theory, the stability of the system near the equilibrium point is judged by the positive and negative of discriminant ∆ 1 and ∆ 2 of eigenvalues in Equation (20).…”

Section: Geo Anchor Pointmentioning

confidence: 99%

“…Hu studied the vibration problem of super flexible damping space structure, considered the coupling between structural vibration, attitude dynamics and track dynamics, and studied the vibration characteristics and wave propagation characteristics of space flexible damping plates with four special springs [19]. Yoon established a proportional experimental model considering the initial tension of tether in 2020, studied the band gap characteristics of metamaterials through experiments, and measured the deformation shape of meta-materials in the band gap [20]. Luo analyzed the dynamics of the space elevator system based on the absolute node coordinate formula (ANCF), and found that this method can achieve the same calculation accuracy with fewer elements, and has a faster convergence speed [21].…”

Section: Introductionmentioning

confidence: 99%

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The Stability Analysis of a Tether for a Segmented Space Elevator

et al. 2022

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The space elevator system is a space tether system used to solve low-cost space transportation. Its high efficiency, large load and other characteristics have broad application prospects in the aerospace field. The stability analysis is the foundation of the space elevator system research. Based on the new segment space elevator system model, in this paper, the stability of the system at the equilibrium point is analyzed by Lyapunov stability theory; And based on the criterion that the change rate of the system restoring torque and the anchor point tension are greater than 0, the maximum offset angle of the system inside and outside the equatorial plane is analyzed. The results show that the segment space elevator is stable near the equilibrium point; The maximum deflection angle of the space elevator inside and outside the equatorial plane is related to the design stress of the anchor point; When the space elevator is offset outside the equatorial plane, it will only lose stability because the restoring torque reaches the maximum value; When the space elevator is offset in the equatorial plane, and due to the design stress of the anchor point is small, it will lose stability because the tensile force of the anchor point is reduced to 0, and when the design stress of the anchor point is large, it will lose stability because the recovery torque reaches the maximum value; The stability of the space elevator outside the equatorial plane is better than that in the equatorial plane.

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Section: Geo Anchor Pointmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Stability Analysis of a Tether for a Segmented Space Elevator

et al. 2022

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“…With the help of a nonuniform distribution of shunting circuits, Liu et al 9 improved the vibration suppression effect of a finite hybrid piezoelectric phononic crystal beam. Yoon et al 10,11 presented a pendulum‐type elastic metamaterial for absorbing the vibration of a tether system, but it has a high‐frequency range of the band gap. In conclusion, elastic metamaterials are widely used for vibration suppression.…”

Section: Introductionmentioning

confidence: 99%

Wave control of a flexible space tether based on elastic metamaterials

Huang

Chen

Sun

et al. 2023

Int Journal of Mech Sys Dyn

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This study proposes a spider-web elastic metamaterial to suppress vibrations in space slender structures, such as flexible space tethers. The metamaterial consists of unit cells that are periodically distributed on the space tether to obtain band gaps. The finite element model of the unit cell is established by employing the absolute nodal coordinate formulation (ANCF) due to the large deformation of the structure. The eigenfrequencies and corresponding vibration modes of the unit cell are obtained by ANCF. Moreover, the band gap of the unit cell is calculated based on the phonon crystal theory. The relationship between the vibration modes and the band gaps is analyzed. Finally, an experiment is conducted to verify the vibration transmission characteristics of finite period cells. The results show the effectiveness of the spider-web elastic metamaterial for vibration suppression of a flexible tether. This study provides insights into the use of elastic metamaterials for vibration isolation in space tether systems.

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Global dynamics of a ring-tethered three-satellite system in any plane

Zhu

2023

Nonlinear Dyn

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Experiment and analysis of a space tether with pendulum-type elastic metamaterials

Cited by 10 publications

References 32 publications

The Stability Analysis of a Tether for a Segmented Space Elevator

The Stability Analysis of a Tether for a Segmented Space Elevator

Wave control of a flexible space tether based on elastic metamaterials

Global dynamics of a ring-tethered three-satellite system in any plane

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