Node Part Development of Vehicle Body with Space Frame Using Design Technology for Additive Manufacturing

Yang, Min-Seok; Jang, Jin-Seok; Kim, Da‐Hye; Sung, Jihyun; Kim, Jeung-Tae; Cho, Yeong-Chul; Lee, Jaewook

doi:10.14775/ksmpe.2020.19.05.045

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…This study designed and manufactured a node part that performs the role of the shock absorber mount. The design process of the node part of the shock absorber mount was described by Yang et al [ 15 ]. In short, the shape of the space frame was derived from the entire vehicle unit, and the concept was designed as a topology optimization for the functional role of the shock absorber mount.…”

Section: Product Design and Ammentioning

confidence: 99%

“…A tensile experiment was performed to evaluate the mechanical properties of the manufactured shock absorber mounts. A load of approximately 14 kN was applied while considering the peak value of the Belgian load applied to the front shock absorber mount of the actual vehicle [ 15 ]. Accordingly, an appropriate tensile testing machine with sufficient capacity was selected so that even breakage of the designed product could be considered.…”

Section: Comparison Of the Fe Models And Experimentsmentioning

confidence: 99%

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A Study on the Mechanical Properties of an Automobile Part Additively Printed through Periodic Layer Rotation Strategies

et al. 2021

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In metal product manufacturing, additive manufacturing (AM) is a method that has the advantage of fabricating complex shapes and customized production, unlike existing machining methods. However, owing to the characteristics of the AM process, anisotropy of macrostructure occurs because of various causes such as the scan direction, melting, fusion, and cooling of the powdered material. The macrostructure anisotropy is realized from the scan direction, and when a single layer is stacked in one direction, it is expressed as orthogonal anisotropy. Here, the classical lamination theory is applied to simply calculate the individual orthotropic layers by superimposing them. Through this, the authors analyzed whether the mechanical properties of the product are isotropically expressed with a periodic layer rotation strategy. To determine if the mechanical properties can be reasonably considered to be isotropic, a shock absorber mount for a vehicle was manufactured by AM. The tensile and vibration test performed on the product was compared with the finite element analysis and experimental results. As a result of the comparison, it was confirmed that the macroscopically of the product was considered isotropic as the load-displacement diagram and the fracture location coincided, as well as the natural frequency and mode shape.

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Section: Product Design and Ammentioning

confidence: 99%

Section: Comparison Of the Fe Models And Experimentsmentioning

confidence: 99%