An improved lattice structure design optimization framework considering additive manufacturing constraints

Gorguluarslan, Recep M.; Gandhi, Umesh; Song, Yu Yang; Choi, Seung-Kyum

doi:10.1108/rpj-10-2015-0139

Cited by 58 publications

(21 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Besides the physical requirements, the printability of the technology and equipment is also a crucial issue, which is ignored by above mentioned methods. Gorguluarslan et al developed a two-phase lattice structure optimization framework with full consideration of the demands of the 3D printing [13], as presented in Fig. 22.…”

Section: Lattice Structure Design Methodsmentioning

confidence: 99%

“…In order to obtain accurate modeling results, numerous meshes will be utilized to approximate the designed model, which is highly resource-consumptive. Also, dozens of parametric surfaces will be required to merge the whole geometry, which may also bring drawbacks to the final results [12,13]. With regard to the design task, diverse requirements of design should be taken into consideration, including the mechanical properties, printability and other specific demands.…”

Section: Introductionmentioning

confidence: 99%

“…Optimization design method: a Lattice design process. b Specific steps consist of MATLAB and Netfabb softwares[13] Feng et al Visual Computing for Industry, Biomedicine, and Art (2018) 1:5…”

mentioning

confidence: 99%

See 2 more Smart Citations

A review of the design methods of complex topology structures for 3D printing

Feng

Lin

et al. 2018

Vis. Comput. Ind. Biomed. Art

View full text Add to dashboard Cite

As a matter of fact, most natural structures are complex topology structures with intricate holes or irregular surface morphology. These structures can be used as lightweight infill, porous scaffold, energy absorber or micro-reactor. With the rapid advancement of 3D printing, the complex topology structures can now be efficiently and accurately fabricated by stacking layered materials. The novel manufacturing technology and application background put forward new demands and challenges to the current design methodologies of complex topology structures. In this paper, a brief review on the development of recent complex topology structure design methods was provided; meanwhile, the limitations of existing methods and future work are also discussed in the end.

show abstract

Section: Lattice Structure Design Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A review of the design methods of complex topology structures for 3D printing

Feng

Lin

et al. 2018

Vis. Comput. Ind. Biomed. Art

View full text Add to dashboard Cite

show abstract

“…Lattice structure design and optimization for lightweight stiffness, strength, and other functionalities is an especially important subset of this research field for AM applications (cf. [70] or [71] for a review), and increasing attention is devoted to incorporating AM-related constraints into the design of these structures (e.g., [107][108][109][110]).…”

Section: Classes Of Parts Uniquely Enabled By Additivementioning

confidence: 99%

Additive Manufacturing Review: Early Past to Current Practice

Beaman

Bourell

Seepersad

et al. 2020

Journal of Manufacturing Science and Engineering

135

View full text Add to dashboard Cite

Additive Manufacturing (AM) is a set of manufacturing processes that are capable of producing complex parts directly from a computer model of the part. This review provides a history of the early antecedents of these processes. In addition, the different classes of AM processes and their commercialization are presented and discussed along with their fields of use. This paper emphasizes AM processes that produce production-quality parts. The review also addresses design issues and the commercial state of the art for production of polymer, metal, and ceramic parts. A main emphasis of this paper is the development and motivations for AM especially during its nascent years. The paper is written for the general readership of manufacturing professionals and researchers.

show abstract

“…Gorguluarslan vd. [13] eğri yüzeylere sahip parçaları sonlu elemanlar ağ örgüsü ile modelleyip kafes hücrelerin dış yüzeyde de tam olarak kalmasını sağlamış ve üretilebilen en küçük çap değerini tasarım değişkenlerinin alt sınırı olarak kullanarak kafes yapı boyut optimizasyonunun otomotiv alanında uygulanabilirliğini göstermiştir. Chen vd.…”

Section: Gi̇ri̇ş (Introduction)unclassified

Kafes yapı tasarım ve optimizasyonunda kullanılan geometrik sınırların eklemeli imalat kısıtlarına bağlı olarak belirlenmesi

Gorguluarslan

2021

Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi

View full text Add to dashboard Cite

 Determining diameter and cell bounds of lattice structures  Additive manufacturing and lattice geometry constraints.  Lattice structure optimization with the proposed approach. In the lattice structure optimization, the lattice type and additive manufacturing (AM) constraints influence the geometric bounds such as the lattice cell dimensions used in the structure and the strut diameters optimized as design variables. Formulations are presented in this study to determine the lower and upper bounds of these geometric dimensions based on the lattice type and AM constraints A stiffness-based lattice optimization process is presented to effectively identify the optimized design within the determined bounds using both the topology and size optimizations. To minimize the computational cost, an optimization algorithm is developed based on the Optimality Criteria (OC) method that can quickly reach the optimized solution. Thus, the design space of the strut diameters can be identified using the developed formulations to get the benefit of using the entire design space in the allowable bounds. The proposed approach is applied for two quadcopter arm examples in the literature. The results show that the proposed approach produces designs with up to 45% better performance compared to the existing designs. Figure A. Proposed lattice structure optimization framework with geometric bounds Purpose: The aim of this study is to determine the bounds of the lattice cell dimensions and strut diameters used in the lattice structure optimization based on the lattice geometry and additive manufacturing limits. Theory and Methods: The proposed approach starts with determining the minimum printable diameter (dmin) and minimum strut angle (αt) that can be built without support in AM. The lower bound of diameters (dl) are assigned as dmin. The upper bounds of the cell lengths at each q direction (lu,q) are determined as the outer dimensions of the design space. Then, formulations are introduced for the lower bound of the cell dimensions (ll,q) and the upper bound of the diameters (du) as a function of dmin, αt, and lattice geometry such that there will be gaps between struts to enable the design with lattice cells. The formulations are specifically described for three lattice types called the simple lattice, simple face-centered lattice, and simple body-centered lattice. The design space is modeled with various lattice cell length alternatives identified within the bounds to have integer number of cells (NH,q). A truss topology optimization followed by a size optimization using the OC algorithm is used for each alternative and the optimized design is obtained among possible alternatives. Results: The optimization is implemented for two quadcopter arm designs used in the literature. The optimized lattice structure obtained from the proposed approach had 23% improvement for the first design in terms of stiffness while it had 45% improvement in terms of displacement for the second design. Conclusion: The developed formulations to determine t...

show abstract

An improved lattice structure design optimization framework considering additive manufacturing constraints

Cited by 58 publications

References 32 publications

A review of the design methods of complex topology structures for 3D printing

A review of the design methods of complex topology structures for 3D printing

Additive Manufacturing Review: Early Past to Current Practice

Kafes yapı tasarım ve optimizasyonunda kullanılan geometrik sınırların eklemeli imalat kısıtlarına bağlı olarak belirlenmesi

Contact Info

Product

Resources

About