Damping behaviors of steel-based Kelvin lattice structures fabricated by indirect additive manufacture combining investment casting

Yan, Weizhen; Yu, Bo; Yang, Quanzhan; Gao, Peng; Miao, Zhuang; Cheng, Jingchang; Sun, Xun

doi:10.1088/1361-665x/ab78b8

Cited by 7 publications

(2 citation statements)

References 40 publications

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“…This makes them appropriate for crashworthiness designs and for controlling shock absorption, vibration, and acoustic noise, all of which are useful for the automotive, aerospace, ergonomics, ballistics, packaging, robotics, and tool manufacturing fields [12,13,16,17,20,38,61]. According to [33,62], Kelvin cells must be cited as structures derived from basic beam cells with the best performance for dampening vibrations.…”

Section: Applicationsmentioning

confidence: 99%

Bird’s Eye View on Lattice Structures: Design Issues and Applications for Best Practices in Mechanical Design

Ahmad,

Belluomo,

Bici

et al. 2023

Metals

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Lattice structures for engineering applications are patterns of unit cells designed to make a larger functional structure. Research on lattice structures ranges in many fields, from mechanical characterization and cell and pattern designs in respect of their applications, to the manufacturing process and its final shape control. From the manufacturing point of view, some kinds of lattice structures can be infeasible when approached with traditional manufacturing methods. It may offer an inevitable limitation of their adoption. However, advancements in Additive Manufacturing (AM) have solved this manufacturing issue to a great extent, allowing to obtain major complexity of the cells that can be achieved. The topology, shape of the unit cell, and the characteristics of its replication pattern allow us to obtain many kinds of structures in respect of the different engineering requirements and manufacturing constraints. Nevertheless, the necessity of new or dedicated CAD-CAE approaches arises to manage the domains of multiscale modeling. These are some of the advantages and disadvantages that may arise while approaching the design of a component using lattice structures. The aim of this paper is to provide an overview that integrates the most recent applications of lattice structures with their related design and manufacturing issues so that, from a practical design point of view, any state-of-the-art improvements may be established in respect of the related field of applications. In this article, engineers and researchers may find a practical summary of the capabilities and processes of lattice structures that are currently available from a design and development point of view.

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Section: Applicationsmentioning

confidence: 99%

Bird’s Eye View on Lattice Structures: Design Issues and Applications for Best Practices in Mechanical Design

Ahmad,

Belluomo,

Bici

et al. 2023

Metals

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show abstract

“…The response of the element will mainly be in the axial direction of the rod, so the relative modulus changes almost linearly with the relative density. For low coordination number geometries such as Kelvin lattice [24], the beams transmit loads through bending, and the relative stiffness shows a quadratic relation with relative density [23]. The typical value of α can also be in other non-integer forms.…”

Section: Analytical Model Of Latticementioning

confidence: 99%

A morphing wing with cellular structure of non-uniform density

Zhang

Song

et al. 2021

Smart Mater. Struct.

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This paper proposes an optimization design method for the modular cellular structure of non-uniform density, which is filled into the morphing wing to generate variable torsion angle. By actively adjusting the distribution of the span-wise torsion angle, the lift distribution on the wing surface can be properly adjusted to avoid the problem of aeroelastic divergence or reduce the bending moment at the wing root. This ability is validated using CFD simulation. In the optimization framework proposed, the adaptive gradient algorithm is used to suppress the divergence of iteration. A finite element model with geometrical nonlinear effects is then proposed to correct the errors of the linear analysis and verify the effectiveness of the optimization method. This design is shown to be able to reduce the overall weight of the structure and achieve control of the macro mechanical performance of the wing. The work provides a general optimization design method for similar modular structures, allowing independent programmable adjustment of the parameters of each single structural cell.

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Compression behavior of 316L lattice structures produced by indirect additive manufacturing

Yan

Yang²,

Cheng

et al. 2023

China Foundry

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Damping behaviors of steel-based Kelvin lattice structures fabricated by indirect additive manufacture combining investment casting

Cited by 7 publications

References 40 publications

Bird’s Eye View on Lattice Structures: Design Issues and Applications for Best Practices in Mechanical Design

Bird’s Eye View on Lattice Structures: Design Issues and Applications for Best Practices in Mechanical Design

A morphing wing with cellular structure of non-uniform density

Compression behavior of 316L lattice structures produced by indirect additive manufacturing

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