CLC number: TU393.3
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2015-08-07
Cited: 0
Clicked: 3979
Jin-yu Zhou, Wu-jun Chen, Bing Zhao, Zhen-yu Qiu, Shi-lin Dong. Distributed indeterminacy evaluation of cable-strut structures: formulations and applications[J]. Journal of Zhejiang University Science A, 2015, 16(9): 737-748.
@article{title="Distributed indeterminacy evaluation of cable-strut structures: formulations and applications",
author="Jin-yu Zhou, Wu-jun Chen, Bing Zhao, Zhen-yu Qiu, Shi-lin Dong",
journal="Journal of Zhejiang University Science A",
volume="16",
number="9",
pages="737-748",
year="2015",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1500081"
}
%0 Journal Article
%T Distributed indeterminacy evaluation of cable-strut structures: formulations and applications
%A Jin-yu Zhou
%A Wu-jun Chen
%A Bing Zhao
%A Zhen-yu Qiu
%A Shi-lin Dong
%J Journal of Zhejiang University SCIENCE A
%V 16
%N 9
%P 737-748
%@ 1673-565X
%D 2015
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1500081
TY - JOUR
T1 - Distributed indeterminacy evaluation of cable-strut structures: formulations and applications
A1 - Jin-yu Zhou
A1 - Wu-jun Chen
A1 - Bing Zhao
A1 - Zhen-yu Qiu
A1 - Shi-lin Dong
J0 - Journal of Zhejiang University Science A
VL - 16
IS - 9
SP - 737
EP - 748
%@ 1673-565X
Y1 - 2015
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1500081
Abstract: The indeterminacy evaluation is an effective method for system identification; it can predict the mechanical behaviors of flexible structures in the primary design. However, the conventional indeterminacy evaluation based solely on geometry and topology has neglected the influence of material properties on mechanical behavior and the contribution of each component to the total indeterminacy. To address these issues, a distributed indeterminacy evaluation taking account of the effect of component stiffness was carried out with a view to providing reasonable interpretations and feasible applications for two concepts, i.e., the distributed static indeterminacy (DSI) and the distributed kinematic indeterminacy (DKI). A unified method for the DSI is proposed, and a comparative analysis between this and an existing method revealed that the proposed method has a wider range of applicability and is essentially identical in the kinematically determinate case. It can be concluded that since the DSI is representative of symmetric properties, a simple but efficient grouping criterion can be established which can improve the efficiency of the specific force finding method entitled double singular value decomposition (DSVD). On the other side, an evaluable method for the DKI is proposed suggesting that DKI is a useful indicator for the assessment of nodal mobility and can provide a feasible solution to the form transforming study.
This paper presents distributed static/kinematic indeterminacy (DSI/DKI) for cable-strut structures by applying mathematical formulation. Three example problems including Geiger dome, Levy dome and tensegrity are provided to explain the physical aspects of DSI and DKI. The extension of the previously developed DSI concept and introduction of DKI for cable-strut structures is interesting.
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