Automatic shape optimisation of structural parts driven by BGM and RBF mesh morphing

Porziani, Stefano; Groth, Corrado; Waldman, Witold; Biancolini, Marco Evangelos

doi:10.1016/j.ijmecsci.2020.105976

Cited by 17 publications

(13 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to the universal nature of the RBF interpolation, the same deformation may be applied to multiple meshes and may extrapolate or interpolate [PGWB21]. However, RBF‐based techniques only offer point handles for deformation control.…”

Section: Related Deformation Methodsmentioning

confidence: 99%

See 1 more Smart Citation

A Survey on Cage‐based Deformation of 3D Models

Ströter,

Thiery,

Hormann

et al. 2024

Computer Graphics Forum

View full text Add to dashboard Cite

Interactive deformation via control handles is essential in computer graphics for the modeling of 3D geometry. Deformation control structures include lattices for free‐form deformation and skeletons for character articulation, but this report focuses on cage‐based deformation. Cages for deformation control are coarse polygonal meshes that encase the to‐be‐deformed geometry, enabling high‐resolution deformation. Cage‐based deformation enables users to quickly manipulate 3D geometry by deforming the cage. Due to their utility, cage‐based deformation techniques increasingly appear in many geometry modeling applications. For this reason, the computer graphics community has invested a great deal of effort in the past decade and beyond into improving automatic cage generation and cage‐based deformation. Recent advances have significantly extended the practical capabilities of cage‐based deformation methods. As a result, there is a large body of research on cage‐based deformation. In this report, we provide a comprehensive overview of the current state of the art in cage‐based deformation of 3D geometry. We discuss current methods in terms of deformation quality, practicality, and precomputation demands. In addition, we highlight potential future research directions that overcome current issues and extend the set of practical applications. In conjunction with this survey, we publish an application to unify the most relevant deformation methods. Our report is intended for computer graphics researchers, developers of interactive geometry modeling applications, and 3D modeling and character animation artists.

show abstract

Section: Related Deformation Methodsmentioning

confidence: 99%

“…The specific coefficients of each RBF may be found automatically by solving a linear system [dBvdSB07; PGWB21]. The deformation of the model is computed by the interpolation defined by the previously specified RBFs.…”

Section: Related Deformation Methodsmentioning

confidence: 99%

A Survey on Cage‐based Deformation of 3D Models

Ströter,

Thiery,

Hormann

et al. 2024

Computer Graphics Forum

View full text Add to dashboard Cite

show abstract

“…in which β i coefficients are evaluated together with γ i weights solving the RBF system (see for reference [21]). Once solved, the RBF coefficients and polynomial weights are used to interpolate each imposed displacement component as an independent scalar field: Inverse multiquadric (IMQ)…”

Section: Rbf Based Mesh Morphingmentioning

confidence: 99%

“…In the present work, the optimization procedure [21] based on BGM and using RBF mesh morphing to automatically sculpt a mechanical component surfaces is first presented and then used to optimize a cross section of the coiled spring, comparing results with the ones achieved adopting the classical circular cross section and the ones computed with a parameter-based optimisation.…”

Section: Introductionmentioning

confidence: 99%

Automatic Optimization Method Based on Mesh Morphing Surface Sculpting Driven by Biological Growth Method: An Application to the Coiled Spring Section Shape

Porziani

Crescenzo

Lombardi

et al. 2021

Computational Science – ICCS 2021

Self Cite

View full text Add to dashboard Cite

HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

show abstract

“…With this approach, it is possible, in an easy and accurate way and with a low calculation effort, obtaining the deformation behavior of the bearing in order to study the stress state of the elements connected. Furthermore, thanks to the lower requirements of the simplified model, additional optimization actions can be performed for the wind turbine components, even including advanced automatic approaches [10] [11].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Wind Turbine Pitch 4-Point Contact Bearing

Porziani

Biancolini

Brutti

2023

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

In the field of renewable energy source, the wind power is certainly one of the most important and therefore the industrial and research community are devoting increasing attention to the design, construction, management and maintenance of wind turbines. Due to the relevance, technical, economic and social of this type of installation the correct maintenance is actually a crucial challenge. As in all mechanical engineering applications, numeric models, FEM based, are widely used during both the design step and monitoring on site. In fact, in the frame of Structural Health Monitoring (SHM), the availability of a Digital Twin is fundamental to interpret the signals coming from the sensors and to check the state of wear and the progression of any damage. In general, this numerical tool must have a good accuracy and a great rapidity of response. For this reason it is essential to develop condensed and reliable models of the main elements able to represent the real behaviour of the component without excessively increasing of computational costs. One of the most important element is the pitch variation slewing bearing, which allows the optimal wing orientation. Unfortunately, a complete numeric model of the bearing requires very large dimension and so the real time reply, necessary to SHM, is difficult. In this paper, to overcome this problem, a new simplified model is proposed to represent the array of spheres and its contact condition with the rings of the bearing. The new approach is based on the adoption of a toroid-shaped element replacing the rolling elements. To study this solution, a full-detailed model of a typical slewing bearing for pitch variation has been used to properly set up the contact model and to tune the properties, geometrical and elastic, of the equivalent toroidal body. The main feature of this approach is that, with a relatively low calculation effort, the deformation behaviour and the stress state of the elements connected to the bearing is available in an easy and accurate way. Then, the comparison in real time of the numerical results with the corresponding experimental ones from the site allows to deduce initiation and growth of a damaging process.

show abstract

Automatic shape optimisation of structural parts driven by BGM and RBF mesh morphing

Cited by 17 publications

References 30 publications

A Survey on Cage‐based Deformation of 3D Models

A Survey on Cage‐based Deformation of 3D Models

Automatic Optimization Method Based on Mesh Morphing Surface Sculpting Driven by Biological Growth Method: An Application to the Coiled Spring Section Shape

Analysis of Wind Turbine Pitch 4-Point Contact Bearing

Contact Info

Product

Resources

About