Nonlinear dynamic modeling for analysis of large spacecraft with extendible appendages

Sun, Tao; Zhang, Shuo; Du, Lin; Niu, Lizhi; Liu, Qingjun; Deng, Zichen

doi:10.1016/j.apm.2023.06.041

Cited by 6 publications

(1 citation statement)

References 39 publications

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“…where ( , ) u x t denotes the longitude deformation in x direction, and ( , ) w x t represents the transverse deformation in y direction. Considering that the two deployable symmetric TTMs will not affect each other on flexible vibration [18], this study considers only one representative side. The nonlinear coupling dynamic equations of longitude and transverse deformations are obtained based on the principle of virtual work:…”

Section: mentioning

confidence: 99%

Dynamic modelling and performance analysis of deployable Telescopic Tubular Mast

Sun,

Gasbarri,

et al. 2024

Preprint

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This work presents the longitudinal and transverse coupling vibrations of a deployable Telescopic Tubular Mast (TTM), a multi-stepped structure integrated into a spacecraft system, while considering the rigid-flexible coupling phenomenon. The model is derived using the principle of virtual work and discretized via the variable separation method. The von Kármán strain is employed to incorporate geometric nonlinear effects. Semi-analytical results for the shape functions and natural frequencies of the quasi-static multi-stepped boom are obtained using the extended transfer matrix method (ETMM). These natural frequencies are validated against results from Nastran, confirming the ETMM's accuracy Additionally, the model accounts for the continuously changing natural frequencies and shape functions during the deployment phase. Finally, the dynamic phenomena of the longitudinal and transverse displacements are analyzed at various deploying states, including locking and restart behaviors. The influence of the structural damping on the vibration evolution is also contained in the numerical analysis.

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Section: mentioning

confidence: 99%

Dynamic modelling and performance analysis of deployable Telescopic Tubular Mast

Sun,

Gasbarri,

et al. 2024

Preprint

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show abstract

Dynamic Modelling and Performance Analysis of Deployable Telescopic Tubular Mast

Sun,

Gasbarri,

et al. 2024

Aerotec. Missili Spaz.

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This work presents the longitudinal and transverse coupling vibrations of a deployable Telescopic Tubular Mast (TTM), a multi-stepped structure integrated into a spacecraft system, while considering the rigid-flexible coupling phenomenon. The model is derived using the principle of virtual work and discretized via the variable separation method. The von Kármán strain is employed to incorporate geometric nonlinear effects. Semi-analytical results for the shape functions and natural frequencies of the quasi-static multi-stepped boom are obtained using the extended transfer matrix method (ETMM). These natural frequencies are validated against results from Nastran, confirming the ETMM's accuracy. In addition, the model accounts for the continuously changing natural frequencies and shape functions during the deployment phase. Finally, the dynamic phenomena of the longitudinal and transverse displacements are analyzed at various deploying states, including locking and restart behaviors. The influence of the structural damping on the vibration evolution is also contained in the numerical analysis.

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Orbit-attitude-structure-thermal coupled modelling method for large space structures in unified meshes

Yang,

Shen,

et al. 2024

Applied Mathematical Modelling

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Nonlinear dynamic modeling for analysis of large spacecraft with extendible appendages

Cited by 6 publications

References 39 publications

Dynamic modelling and performance analysis of deployable Telescopic Tubular Mast

Dynamic modelling and performance analysis of deployable Telescopic Tubular Mast

Dynamic Modelling and Performance Analysis of Deployable Telescopic Tubular Mast

Orbit-attitude-structure-thermal coupled modelling method for large space structures in unified meshes

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