An innovative and inexpensive experimental setup for testing connections in gridshell structures

Seifi, Hamed; Javan, Anooshe Rezaee; Lin, Xiaoshan; Xie, Yi Min

doi:10.1016/j.engstruct.2020.110257

Cited by 10 publications

(5 citation statements)

References 12 publications

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“…The floating sleeve and the surface of the dentine bearing are defined as friction constraints. The surface of the floating sleeve and roller bearing is also defined as a friction constraint [13][14][15][16] . The friction coefficient of the floating sleeve is 0.2.…”

Section: Modeling and Finite Element Analysismentioning

confidence: 99%

Mechanical Friction Simulation and Optimization Design of Floating Bearing of Mechanical Tricone Bit

Liu

Peng

Zhang

et al. 2023

J. Phys.: Conf. Ser.

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This paper aims to find out the most vulnerable position and the suitable clearance ratio of the floating sleeve between the inside and outside floating sleeve of the tricone bit. In this paper, the mechanical analysis model of the drill bit is established to get the simulated working condition of the tri-cone bit, and then the stress condition of the floating bearing is simulated. Finally, the multi-factor variable orthogonal test method is used to optimize the clearance ratio of the floating sleeve. The results show that the simulation results are consistent with the wear position of the floating sleeve: during the operation of the floating sleeve, the most vulnerable position is the edge position, the largest deformation is the opening position, the recommended internal clearance of the floating sleeve is 0.06–0.07 mm, the recommended external clearance is 0.02–0.04 mm, and the recommended internal clearance ratio is 2.0–2.4.

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Section: Modeling and Finite Element Analysismentioning

confidence: 99%

Mechanical Friction Simulation and Optimization Design of Floating Bearing of Mechanical Tricone Bit

Liu

Peng

Zhang

et al. 2023

J. Phys.: Conf. Ser.

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“…Such shortcoming is mostly due to the limited quantity of load combinations which can reasonably be considered for the optimisation process. Should multi-axial bending and shear add to the tension and compression stresses, the TO procedure would escalate several levels of complexity and yield less intuitive results, in which validation would become a critical issue [427]. In fact, experimental testing of these joint details under a multitude of load cases is an inevitable step towards the broader employment of TO in steel joints detailing [139,427].…”

Section: Joints Detailingmentioning

confidence: 99%

“…Should multi-axial bending and shear add to the tension and compression stresses, the TO procedure would escalate several levels of complexity and yield less intuitive results, in which validation would become a critical issue [427]. In fact, experimental testing of these joint details under a multitude of load cases is an inevitable step towards the broader employment of TO in steel joints detailing [139,427]. A further step towards the application of TO in joints design can be envisaged in Wang et al's comprehensive method for optimizing and fabricating joints in three-like structures [428].…”

Section: Appl Sci 2021 11 X For Peer Review 27 Of 66mentioning

confidence: 99%

“…As such, the nature-inspired structural concept is particularly prone to TO, in which a solution for optimising and manufacturing its joints is paramount. Other interesting developments in the TO of joints among tubular elements can be found in the [422] (reproduced under the Creative Commons Attribution-NonCommercial-NoDerivs License); (e) joint specimens topologically optimized with the bi-directional evolutionary structural optimisation (BESO) method for axial loads and bending in the RMIT University [427].…”

Section: Appl Sci 2021 11 X For Peer Review 27 Of 66mentioning

confidence: 99%

“…Examples of topologically optimised and additively manufactured metallic connections for civil engineering structures. Left to right and top to down: (a) Non-TO and TO joint specimens by ARUP[355]; (b) several joints designed in the University of Leeds[139]; (c) wire and arc additive manufacturing (WAAM) printed bolted joint in the Technical University of Darmstadt[422] (reproduced under the Creative Commons Attribution-NonCommercial-NoDerivs License); (d) WAAM printed node in the Technical University of Darmstadt[422] (reproduced under the Creative Commons Attribution-NonCommercial-NoDerivs License); (e) joint specimens topologically optimized with the bi-directional evolutionary structural optimisation (BESO) method for axial loads and bending in the RMIT University[427].…”

mentioning

confidence: 99%

See 2 more Smart Citations

Topology Optimisation in Structural Steel Design for Additive Manufacturing

2021

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Topology Optimisation is a broad concept deemed to encapsulate different processes for computationally determining structural materials optimal layouts. Among such techniques, Discrete Optimisation has a consistent record in Civil and Structural Engineering. In contrast, the Optimisation of Continua recently emerged as a critical asset for fostering the employment of Additive Manufacturing, as one can observe in several other industrial fields. With the purpose of filling the need for a systematic review both on the Topology Optimisation recent applications in structural steel design and on its emerging advances that can be brought from other industrial fields, this article critically analyses scientific publications from the year 2015 to 2020. Over six hundred documents, including Research, Review and Conference articles, added to Research Projects and Patents, attained from different sources were found significant after eligibility verifications and therefore, herein depicted. The discussion focused on Topology Optimisation recent approaches, methods, and fields of application and deepened the analysis of structural steel design and design for Additive Manufacturing. Significant findings can be found in summarising the state-of-the-art in profuse tables, identifying the recent developments and research trends, as well as discussing the path for disseminating Topology Optimisation in steel construction.

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Experimental investigations of optimized 3D Printing Planar X-joints manufactured by stainless steel and high-strength steel

Huang

Deng

Wang

2023

Engineering Structures

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An innovative and inexpensive experimental setup for testing connections in gridshell structures

Cited by 10 publications

References 12 publications

Mechanical Friction Simulation and Optimization Design of Floating Bearing of Mechanical Tricone Bit

Mechanical Friction Simulation and Optimization Design of Floating Bearing of Mechanical Tricone Bit

Topology Optimisation in Structural Steel Design for Additive Manufacturing

Experimental investigations of optimized 3D Printing Planar X-joints manufactured by stainless steel and high-strength steel

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