Initial Equilibrium Configuration Determination and Shape Adjustment of Cable Network Structures

Du, Jingli; Bao, Hong; Deng, Yang; Wang, Yanzi; Cui, Chuanzhen

doi:10.1080/15397734.2012.665799

Cited by 10 publications

(4 citation statements)

References 15 publications

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“…In fact, flexible structural dynamic analysis was carried out since 1980s, and further research on flexible structural multi-body kinetic/dynamic analysis and control technology were carried out in 1990s [62][63][64][65][66][67][68][69][70] . In the 21st century, with support of several national projects, electromechanical coupling theory and method of deployable antenna, flexible multi-body unfolding kinetic/dynamic analysis, support mesh reflector surface profile analysis, design and adjustment, and twostate (deployed and stowed) dynamic optimization [71][72][73][74][75][76][77][78][79][80][81][82][83][84][85] . China's first large-scale Spaceborne deployable antenna design software platform named SDADS has been developed by research institute on mechatronics, Xidian University, China [86] with integrating electromagnetic, structural and thermal technologies.…”

Section: Electrostatically Controlled Deployable Membrane Antennamentioning

confidence: 99%

Large Spaceborne Deployable Antennas (LSDAs) —A Comprehensive Summary

Duan

2020

Chin. j. electron.

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Section: Electrostatically Controlled Deployable Membrane Antennamentioning

confidence: 99%

Large Spaceborne Deployable Antennas (LSDAs) —A Comprehensive Summary

Duan

2020

Chin. j. electron.

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“…This element was first proposed by Jayaraman and Knudson (1981) and has been later improved by several studies (Luo et al, 2005;Ren and Gu, 2005;Andreu et al, 2006;Yang and Tsay, 2007). The Formulation of catenary element is based on the equilibrium state of the cable element which has only two nodes at its ends (Wang et al, 1986;Du et al, 2012). The differential equation of cable deflection curve is solved and the exact stiffness matrix is available.…”

Section: Introductionmentioning

confidence: 99%

A Numerical Method to Material and Geometric Nonlinear Analysis of Cable Structures

Riabi

Shooshtari

2015

Mechanics Based Design of Structures and Machines

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In this article, a numerical method is presented for computing the stiffness matrix and compatibility relations of cables under uniform distributed loads on any direction. Both the geometrical and material nonlinearities, including softening and yielding of material, are taken into account and the catenary cable element with gauss integration scheme is employed. The proposed formulation includes the effect of uniform distributed loads on any direction and 3D nodal forces to assess the geometric and possible material nonlinearity of cables. The derived equations are then applied to the analysis of cable structures. The accuracy of the responses obtained by the proposed method is evaluated by several benchmark solutions available in the literature. Results of numerical examples indicate the capability of the proposed stiffness matrix in prediction of the elastic and inelastic responses of cables. The proposed formulation is therefore recommended for cable elements to be used in the analysis of cable structures.

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“…For a flexible structure with large displacement behavior, nonlinear method is commonly incorporated into control algorithm for better accuracy. Similar nonlinear static control method had been used in cable-strut structures in the past [15]. Although the static control optimization model for cable-strut structures is not suitable for the adaptive BSS, its nonlinear static control method could still be a good reference.…”

Section: Introductionmentioning

confidence: 99%

A Static Control Algorithm for Adaptive Beam String Structures Based on Minimal Displacement

Shen

Cheng

Yang

et al. 2013

Mathematical Problems in Engineering

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The beam string structure (BSS) is a type of prestressed structure and has been widely used in large span structures nowadays. The adaptive BSS is a typical smart structure that can optimize the working status itself by controlling the length of active struts via certain control device. The control device commonly consists of actuators in all struts and sensors on the beam. The key point of the control process is to determine the length adjustment values of actuators according to the data obtained by preinstalled sensors. In this paper, a static control algorithm for adaptive BSS has been presented for the adjustment solution. To begin with, an optimization model of adaptive BSS with multiple active struts is established, which uses a sensitivity analysis method. Next, a linear displacement control process is presented, and the adjustment values of struts are calculated by a simulated annealing algorithm. A nonlinear iteration procedure is used afterwards to calibrate the results of linear calculation. Finally, an example of adaptive BSS under different external loads is carried out to verify the feasibility and accuracy of the algorithm. And the results also show that the adaptive BSS has much better adaptivity and capability than the noncontrolled BSS.

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Initial Equilibrium Configuration Determination and Shape Adjustment of Cable Network Structures

Cited by 10 publications

References 15 publications

Large Spaceborne Deployable Antennas (LSDAs) —A Comprehensive Summary

Large Spaceborne Deployable Antennas (LSDAs) —A Comprehensive Summary

A Numerical Method to Material and Geometric Nonlinear Analysis of Cable Structures

A Static Control Algorithm for Adaptive Beam String Structures Based on Minimal Displacement

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