scholarly journals Combining Integrated Informative System and Historical Digital Twin for Maintenance and Preservation of Artistic Assets

Sensors ◽  
2021 ◽  
Vol 21 (17) ◽  
pp. 5956
Author(s):  
Adriana Marra ◽  
Salvatore Gerbino ◽  
Alessandro Greco ◽  
Giovanni Fabbrocino
Keyword(s):  
Dynamic Properties ◽  
Three Dimensional ◽  
Laser Scanner ◽  
Rational Approach ◽  
Three Dimensional Model ◽  
Stress Regime ◽  
Novel Technologies ◽  
Digital Twin ◽  
Artistic Assets ◽  
Artistic Heritage

The protection of artistic and cultural heritage is a major challenge due to its peculiarities and its exposure to significant natural hazards. Several methodologies exist to assess the condition of artistic heritage and to protect it from exceptional actions. Moreover, novel digital technologies offer many solutions able to deliver a digital replica of artifacts of interest, so that a reduction in the uncertainties in the analysis models can be achieved. A rational approach to the preservation and protection of artistic heritage is based on traditional approaches supported and integrated by novel technologies, so that qualitative and quantitative indicators of the current condition of artistic heritage can be defined and validated in an interdisciplinary framework. The present paper reports the results of an approach to the maintenance and preservation of art objects housed in a museum complex based on a comprehensive digital path towards a Historical Digital Twin (HDT). A workflow aimed at estimating the stress regime and the dynamic properties of two sculptures, based on the detailed three-dimensional model resulting from a laser scanner survey, is illustrated and discussed. The results highlight the great advantages resulting from the integration of traditional and novel procedures in the field of conservation of artistic assets.

scholarly journals 3D MODELING FOR UNDERWATER ARCHAEOLOGICAL DOCUMENTATION: METRIC VERIFICATIONS

2015 ◽  
Vol XL-5/W5 ◽  
pp. 73-77
Author(s):  
S. D’Amelio ◽  
V. Maggio ◽  
B. Villa
Keyword(s):  
Cultural Heritage ◽  
3D Modeling ◽  
Video Sequence ◽  
Reference Model ◽  
Comparative Method ◽  
Three Dimensional ◽  
Laser Scanner ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Underwater Environment

The survey in underwater environment has always presented considerable difficulties both operative and technical and this has sometimes made it difficult to use the techniques of survey commonly used for the documentation of Cultural Heritage in dry environment. The work of study concerns the evaluation in terms of capability and accuracy of the Autodesk123DCatch software for the reconstruction of a three-dimensional model of an object in underwater context. The subjects of the study are models generated from sets of photographs and sets of frames extracted from video sequence. The study is based on comparative method, using a reference model, obtained with laser scanner technique.

Modeling Design and Rapid Prototyping Manufacture of Cream Bottle Based on Handheld Laser Scanning

2015 ◽  
Vol 752-753 ◽  
pp. 1301-1306 ◽  
Author(s):  
Xing Xing Wang ◽  
Jin Dong Wei ◽  
Yi Pei ◽  
Yu Zhu ◽  
Hong Jun Ni
Keyword(s):  
Rapid Prototyping ◽  
Reverse Engineering ◽  
Laser Scanning ◽  
Three Dimensional ◽  
Laser Scanner ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Engineering Technology ◽  
Cloud Data ◽  
Improve Efficiency

Reverse Engineering (RE) and Rapid Prototyping (RP) were used for manufacturing cream bottle. Points cloud data of cream bottle was accessed by handheld laser scanner firstly. Then, points cloud data was handed by Imageware software and the three-dimensional model was formed by Solidworks software. Finally, the entity model was manufacturing by RP machine. In the research, rapid prototyping was combined with reverse engineering technology, manufacturing cycle was shorten, production requirements, improve efficiency and other advantages were met.

scholarly journals Reconstruction of an architectural object. Case study: Citadel fort No. 33 “Krakus” in Krakow

2018 ◽  
Vol 63 ◽  
pp. 00010
Author(s):  
Izabela Piech ◽  
Boguslawa Kwoczynska ◽  
Artur Ciszewski
Keyword(s):  
Point Cloud ◽  
3D Model ◽  
Three Dimensional ◽  
Laser Scanner ◽  
Field Work ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Laser Measurements ◽  
The University

The aim of the study was to recreate, in the form of a 3D model, the Citadel fort No. 33 “Krakus” in Krakow. The data on the basis of which the three-dimensional model was made were obtained using a Leica ScanStation P40 terrestrial laser scanner, which is owned by the Faculty of Environmental Engineering and Geodesy of the University of Agriculture Hugona Kollataj in Krakow. The scope of field work included performing laser measurements, and then processing the point cloud in the Leica Cyclone 3D program and creating a full architectural model in SketchUp 2016.

ENERGY-BASED APPROACH TO ESTIMATE SEISMIC DEMANDS FOR ASYMMETRIC BUILDINGS

2010 ◽  
Vol 04 (03) ◽  
pp. 215-230 ◽  
Author(s):  
RAMIN TABATABAEI ◽  
HAMED SAFFARI
Keyword(s):  
Seismic Response ◽  
Dynamic Properties ◽  
Pushover Analysis ◽  
Three Dimensional ◽  
Lateral Force ◽  
Three Dimensional Model ◽  
Seismic Demands ◽  
Asymmetric Buildings ◽  
Plastic Mechanism ◽  
Response History Analysis

In this paper, an energy-based approach to estimate the inelastic response of buildings is presented. In order to estimate torsional effects on the seismic response of structure, the associated plastic mechanism is developed in the three-dimensional model using an adapted version of the DRAIN-3DX program. The changing dynamic properties due to plastic mechanism are used for the calculation of modal lateral loads. Thus, the effects of both stiffness changes and localized response mechanisms at the structure under modal loading are included. The total input energy due to seismic loading is composed of both work done by (1) lateral force pattern acting through the translation displacement and (2) torsion acting through the rotation of each floor. For assessment of the seismic response of asymmetric buildings, the proposed procedure is shown to provide superior results compared to those obtained through deployment of the other methods commonly used: the adaptive modal combination (AMC) procedure, the modal pushover analysis (MPA), and the response history analysis (RHA) approach.

Ontology-based modeling of part digital twin oriented to assembly

2020 ◽  
pp. 095440542094116
Author(s):  
Qiangwei Bao ◽  
Gang Zhao ◽  
Yong Yu ◽  
Sheng Dai ◽  
Wei Wang
Keyword(s):  
Information Filtering ◽  
Three Dimensional ◽  
Structural Heterogeneity ◽  
Machining Process ◽  
Digital Manufacturing ◽  
Three Dimensional Model ◽  
Digital Twin ◽  
Assembly Features ◽  
Inspection Data ◽  
Twin Modeling

The digital twin concept, as a widely accepted philosophy for a new generation of digital manufacturing research, plays a significant role in the Industry 4.0 era. As the prerequisite for in-depth application of digital manufacturing in assembly, the collecting, modeling and utilizing approach for historical data of machining process and inspection of part appear to be important to provide data support for integral manufacturing scenarios. However, the modeling approach to part digital twin is not comprehensive due to the structural heterogeneity of data, which hampers the real-time simulation and adjustment in assembly process. Therefore, a method of part digital twin modeling oriented to assembly is proposed in this article. The designing information of a part is obtained from a three-dimensional model with the model-based definition approach, while machining features are pre-defined and identified. Moreover, the assembly constrain relationships in the assembly unit that the part participate in are obtained, on account of which deviation transfer analysis can be accomplished, and key assembly features are filtered to be the carrier of processing and inspection data. An assembly-oriented part digital twin framework is constructed to demonstrate the main components and dataflow in creating a digital twin with information filtering and subsequent management. In addition, a case study is illustrated to show the entire process of part digital twin modeling and proves the practicality and efficiency of the method proposed.

Realization of the 3D Simulation Model of the Hui-Quan Substation

2012 ◽  
Vol 529 ◽  
pp. 195-199
Author(s):  
Qiu Long Liu ◽  
Wu Sheng Hu
Keyword(s):  
Spatial Data ◽  
Laser Scanning ◽  
3D Visualization ◽  
Three Dimensional ◽  
Laser Scanner ◽  
Target Surface ◽  
Spatial Location ◽  
Dynamic Visualization ◽  
Three Dimensional Model ◽  
Object A

3D (three-dimensional) laser scanning can be used to collect spatial location of points rapidly and abundantly, and obtain three-dimensional coordinates of the target surface, which provides new technical means for the rapid creation of three-dimensional image model of the object. A three-dimensional modeling study on spatial object was carried out using the spatial data captured via ground-based 3D laser scanner in the Hui-Quan substation. The experiment result shows that rapid 3D visualization modeling on buildings can be achieved via the methods and procedures mentioned above. It has solved that the traditional equipment and the measuring technique is insufficiency in the special domain. It will bring the application mode and technical advantage, which tradition mapping way can not have. A platform for three-dimensional model of the substation can be achieved for the resources, landscape, security, environmental management and other social resources of digital, networked and dynamic visualization.

Modal Analysis of Helical Milling Unit

2012 ◽  
Vol 482-484 ◽  
pp. 2454-2459 ◽  
Author(s):  
Xu Da Qin ◽  
Cui Lu ◽  
Qi Wang ◽  
Hao Li ◽  
Lin Jing Gui
Keyword(s):  
Finite Element ◽  
Modal Analysis ◽  
Dynamic Properties ◽  
Three Dimensional ◽  
Element Model ◽  
Helical Milling ◽  
Mode Shapes ◽  
Three Dimensional Model ◽  
Working Principle ◽  
The Finite Element Model

Based on the analysis of the working principle and structure characteristics of helical milling unit, the prototype’s three-dimensional model was built, the prototype’s finite element modal analysis was conducted, and the first 6 natural frequencies and their mode shapes were obtained. The finite element model is experimentally validated by comparing finite element and experimental modal’s parameters. This paper investigates the dynamic properties of prototype, and provides theoretical references for the subsequent dynamic analysis and structural optimization.

scholarly journals Digital Documentation and a 3-D Model of Beaufort Castle via RTK GNSS, Terrestrial Laser Scanner and UAS-based Photogrammetry

2021 ◽  
Vol 310 ◽  
pp. 05002
Author(s):  
Yousef Naanouh ◽  
Vasyutinskaya Stanislava
Keyword(s):  
Laser Scanning ◽  
3D Model ◽  
Three Dimensional ◽  
Laser Scanner ◽  
Terrestrial Laser Scanning ◽  
Three Dimensional Model ◽  
South Lebanon ◽  
Aerial Vehicle ◽  
Digital Documentation ◽  
D Model

Three-dimensional digital technology is important in the maintenance and monitoring of archeological sites. This paper focuses on using a combination of terrestrial laser scanning and unmanned aerial vehicle (Phantom 4 pro) photogrammetry to establish a three-dimensional model and associated digital documentation of Beaufort castle (Arnoun, South Lebanon). The overall discrepancy between the two technologies was sufficient for the generation of convergent data. Thus, the terrestrial laser scanning and phantom 4 photogrammetry data were aligned and merged post-conversion into compatible extensions. A three-D dimensional (3D) model, with planar and perpendicular geometries, based on the hybrid datapoint cloud was developed. This study demonstrates the potential of using the integration of terrestrial laser scanning and photogrammetry in 3D digital documentation and spatial analysis of the Lebanese archeological sites.

scholarly journals DIGITAL ANALYSIS WITH 3D SCANNING AND THREE-DIMENSIONAL MODELLING OF THE MAIN CHURCH OF ST. MARY – THE OLD CATHEDRAL, CARTAGENA (REGION OF MURCIA, SPAIN)

2020 ◽  
Vol XLIV-M-1-2020 ◽  
pp. 327-334
Author(s):  
P. E. Collado-Espejo ◽  
J. García-León ◽  
F. J. Jiménez-González ◽  
C. M. Sánchez-Yepes
Keyword(s):  
Spanish Civil War ◽  
Three Dimensional ◽  
Laser Scanner ◽  
Master Plan ◽  
Digital Analysis ◽  
Dimensional Model ◽  
13Th Century ◽  
Three Dimensional Model ◽  
Graphic Analysis ◽  
Graphic Information

Abstract. The former Church of St. Mary, known as the Old Cathedral, in Cartagena (Region of Murcia, Spain), is a construction from the beginning of the 13th century, but it was transformed in the 16th century and rebuilt at the beginning of the 20th century. The bombings occurring during the Spanish Civil War caused the partial collapse of the building and the state of ruin that it currently presents. It is protected as a PCI with the category of monument. A Master Plan is currently being developed that should lead to the recovery of the building. The "Thermal Analysis and Geomatics (TAG)" Research Group of the Polytechnic University of Cartagena has collaborated in the drafting of the Master Plan with a planimetric survey and graphic analysis of the entire building. For this purpose, digital terrestrial photogrammetry techniques and a 3D laser scanner compatible with classical topography have been used, in order to obtain an accurate three-dimensional model. All this graphic information has been contrasted with the historical, typological, material and constructive information currently available about the building, which has facilitated the making of an exhaustive three-dimensional analysis that permits us to know this ancient Cathedral in depth. This paper will describe the work methodology followed, the technical means used and the results achieved, which have been incorporated into the Master Plan that is being prepared. Undoubtedly, the digital analysis has helped to obtain a better general understanding of the building and to be able to propose a correct formal, structural and material recomposition.

scholarly journals Student Learning about Biomolecular Self-Assembly Using Two Different External Representations

2013 ◽  
Vol 12 (3) ◽  
pp. 471-482 ◽  
Author(s):  
Gunnar E. Höst ◽  
Caroline Larsson ◽  
Arthur Olson ◽  
Lena A. E. Tibell
Keyword(s):  
Student Learning ◽  
Self Assembly ◽  
Dynamic Properties ◽  
Three Dimensional ◽  
External Representations ◽  
Three Dimensional Model ◽  
Written Responses ◽  
Significant Difference ◽  
Model Condition ◽  
The Impact

Self-assembly is the fundamental but counterintuitive principle that explains how ordered biomolecular complexes form spontaneously in the cell. This study investigated the impact of using two external representations of virus self-assembly, an interactive tangible three-dimensional model and a static two-dimensional image, on student learning about the process of self-assembly in a group exercise. A conceptual analysis of self-assembly into a set of facets was performed to support study design and analysis. Written responses were collected in a pretest/posttest experimental design with 32 Swedish university students. A quantitative analysis of close-ended items indicated that the students improved their scores between pretest and posttest, with no significant difference between the conditions (tangible model/image). A qualitative analysis of an open-ended item indicated students were unfamiliar with self-assembly prior to the study. Students in the tangible model condition used the facets of self-assembly in their open-ended posttest responses more frequently than students in the image condition. In particular, it appears that the dynamic properties of the tangible model may support student understanding of self-assembly in terms of the random and reversible nature of molecular interactions. A tentative difference was observed in response complexity, with more multifaceted responses in the tangible model condition.

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