Structural optimization and dynamic analysis for double-layer spherical reticulated shell structures

Li, L.J.; Xie, Zhi Hong; Guo, Yong; Liu, F.

doi:10.1016/j.jcsr.2006.01.010

Cited by 14 publications

(6 citation statements)

References 15 publications

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“…A few papers [19][20][21][22] describe new isolation devices and the dynamic performance of single-and double-layer domes with dampers. The optimization of dome structures with dynamic constraints is presented in [23,24], while, in [25], the dynamic analysis and seismic design method for reticulated domes with semi-rigid joints are discussed. Recently, an interesting nonlinear dynamic analysis of lattice domes was presented in [26], where the uncertainty of structural parameters is taken into account.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Characteristics of Reticulated Domes Built of Composite Elastic/Viscoelastic Rods Modeled by the Fractional Zener Model

2022

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The new method for the determination of the dynamic characteristics of reticulated domes is proposed. Reticulated domes are built of composite rods. Each rod contains two layers made of elastic and viscoelastic materials, respectively. The viscoelastic material is modeled using the Zener model with fractional derivatives. A new formulation for the composite rod is proposed. The natural frequencies, the non-dimensional damping ratios and the modes of vibration are obtained as a solution to the nonlinear eigenvalue problem, which is solved using the continuation method. Moreover, the frequency response functions are determined in the usual way. The results of representative calculations are also presented and briefly discussed.

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Section: Introductionmentioning

confidence: 99%

Dynamic Characteristics of Reticulated Domes Built of Composite Elastic/Viscoelastic Rods Modeled by the Fractional Zener Model

2022

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“…With the development of new technology and the improvement of building level, the long-span prestressed spatial steel structure, such as chord dome structure, has developed rapidly as a new force [1].The system can greatly reduce the amount of steel used, give full play to the strength of steel in the space stress, have a variety of forms in the building configuration, and have a good visual effect, so it is widely used in engineering [2][3][4][5].In this paper, the whole process of prestressed cable construction in Hebei North University Gymnasium is simulated and analyzed.…”

Section: Introductionmentioning

confidence: 99%

The influence of coupling on the whole process of construction simulation of chord dome structure

et al. 2020

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：Chord dome structure is a new type of hybrid prestressed spatial steel structure system, which is often used in large-span structures. During the construction of the structure, it is necessary to apply prestress to the ring cable. Taking the chord dome roof of Hebei North University gymnasium as an example, the whole process of prestressed cable construction is simulated and analyzed by using the finite element software ANSYS. The hoop cable of the dome roof can slide freely in the hoop direction, and the attribute of free sliding in the ANSYS interface is "coupling". In this paper, two kinds of simulation models, coupling and uncoupling, are established to compare, and then to explore the influence of coupling on the construction process of string dome structure.

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“…At present, most researches on reticulated shell structures focuses on stability analysis, buckling and path tracking, and elasto‐plastic simulations with large deformation . Only a few researchers have carried out structural optimization of reticulated shell structures, aiming to reduce structural weight . On the other hand, reticulated shell structures are hard‐to‐process by traditional manufacturing methods, resulting in high manufacturing cost and long production cycles.…”

Section: Introductionmentioning

confidence: 99%

Compressive Properties of Bio‐Inspired Reticulated Shell Structures Processed by Selective Laser Melting

Wang

Lin

et al. 2019

Adv Eng Mater

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Owing to reasonable stress, large rigidity and large span, the reticulated shell structure is widely used in the field of aerospace industry. However, its hardto-process nature hinders, the progress of design optimization, and experimental investigation. In this paper, a series of reticulated shell structure, inspired from the diving bell of the water spiders, is designed and fabricated by selective laser melting (SLM) additive manufacturing technology from AlSi10Mg powder. The effects of strut diameter on dimensional accuracy, densification behavior, and mechanical properties of SLM-processed reticulated shell structures are investigated. The results show that all the SLMprocessed reticulated shell structures exhibit high relative density (>99%), which decrease with the increase of strut diameter. The load-displacement curves of all reticulated shell structures exhibit a similar trend including three distinct stages. The structure with strut diameter of 1.25 mm (D 1.25 ) has relatively high specific energy absorption, and energy absorption capability. The fracture mechanism of SLM-processed reticulated shell structures with different strut diameters is analyzed through a combination of finite element simulations and experimental observations. With an increasing strut diameter, the dominant mechanism changes from stress-controlled to porositycontrolled fracture.

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Structural optimization and dynamic analysis for double-layer spherical reticulated shell structures

Cited by 14 publications

References 15 publications

Dynamic Characteristics of Reticulated Domes Built of Composite Elastic/Viscoelastic Rods Modeled by the Fractional Zener Model

Dynamic Characteristics of Reticulated Domes Built of Composite Elastic/Viscoelastic Rods Modeled by the Fractional Zener Model

The influence of coupling on the whole process of construction simulation of chord dome structure

Compressive Properties of Bio‐Inspired Reticulated Shell Structures Processed by Selective Laser Melting

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