An overview of 3D laser scanning techniques and application on digitization of historical structures

Bhatti, Abdul Qadir; Wahab, Abdul Hadi Abdul; Sindi, Wadea

doi:10.1007/s41062-021-00550-9

Cited by 8 publications

(4 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The added thrust value of all the lost blade sections leads to 𝐹 𝑃 𝑎1 𝑧 , as given by Eq. (32). 𝜉 𝑗 𝑘 is a boolean which has a value of 1 when the blade section is damaged and 0 when it is in its nominal state.…”

Section: B Aerodynamic Forces and Momentsmentioning

confidence: 99%

“…Further work in the simulation of propeller damage could be oriented towards the refinement of the model developed in this chapter in order to remove one or multiple of the aforementioned assumptions; contributing to its generalisation and application to different propeller types. For instance, the geometrical assumptions 1)-4) could be eliminated by creating a 3D model (digital twin) of the propeller using scanning technologies that probe the propeller through physical touch (with contact), such as Coordinate Measuring Machines [30], or scanning technologies that exploit acoustic, optical or magnetic approaches (without contact), such as laser scanning, structured light or photogrammetry [31,32] (e.g. structure from motion).…”

Section: Assumptions and Recommendationsmentioning

confidence: 99%

See 1 more Smart Citation

Blade Element Theory Model for UAV Blade Damage Simulation

de Alvear Cárdenas,

de Visser

2024

AIAA SCITECH 2024 Forum

View full text Add to dashboard Cite

From fault-tolerant control to failure detection, blade damage simulation is integral for developing and testing failure-resilient modern unmanned aerial vehicles. Existing approaches assume partial loss of rotor effectiveness or reduce the problem to centrifugal forces resulting from the shift in the propeller centre of gravity. In this study, a white-box blade damage model based on Blade Element Theory is proposed, integrating both mass and aerodynamic effects of blade damage. The model serves as plug-in to the nominal system model, enables the simulation of any degree of blade damage and does not require costly experimental data from failure cases. A complementary methodology for the identification of the airfoil lift and drag coefficients is also presented. Both contributions were demonstrated with the Bebop 2 drone platform and validated with static test stand wrench measurements obtained at 3 levels of blade damage (0%, 10%, 25%) in a dedicated wind tunnel experimental campaign with velocities up to 12 m/s. Results indicate high accuracy in simulating a healthy propeller. In the presence of blade damage, the model exhibits a relative error between 5% and 24% at high propeller rotational speeds and between 15% and 75% at low propeller rotational speeds.

show abstract

Section: B Aerodynamic Forces and Momentsmentioning

confidence: 99%

Section: Assumptions and Recommendationsmentioning

confidence: 99%

Blade Element Theory Model for UAV Blade Damage Simulation

de Alvear Cárdenas,

de Visser

2024

AIAA SCITECH 2024 Forum

View full text Add to dashboard Cite

show abstract

“…The main advantages of TLS over traditional measurement technologies include having a high speed, large sampling capacity, much more information, high automation, no need for contact, and relatively high accuracy [5]. A study by Wu et al [6] suggested that the five major applications of TLS are 3D model reconstruction [7][8][9][10][11][12][13][14][15][16][17][18][19], object recognition [1,18,[20][21][22], deformation measurement [23,24], quality assessment [2,3,21,23,[25][26][27][28][29][30][31][32][33][34][35][36][37], and progress tracking [18,22,[38][39][40][41][42]. Additional applications to these applications could be included, such as urban area [43]…”

Section: Introductionmentioning

confidence: 99%

Reverse Engineering of Building Layout Plan through Checking the Setting out of a Building on a Site Using 3D Laser Scanning Technology for Sustainable Building Construction: A Case Study

Kim,

Shin

2024

Sustainability

View full text Add to dashboard Cite

Among smart construction technologies, 3D laser scanning technology is used in a variety of applications, including progress measurement, quantity management, reverse engineering (RE), health monitoring, mechanical electronic plumbing (MEP), and so on, using point clouds data (PCD) in the architecture, engineering, and construction (AEC) field. This technology is one of the important data acquisition technologies in construction status to perform active project management through the complete and accurate three-dimensional and visual judgment of building acts. The surveying work for setting out a building is the first step in constructing a building; the location of the building must match the design plan for a building to be sustainable. This is because, if a location deviation exceeds the permitted range, the building must be demolished and rebuilt. When this happens, sustainable construction management is impossible due to delays in the construction schedule, increased construction costs, waste generation, and so on. The purpose of this study is to investigate a case where the accuracy of setting out a building was measured in the construction stage of a building and the building layout design was modified by RE. Although the foundation construction of the case building was in progress, it was confirmed that the setting out of the building measured using a 3D laser scanner did not match with the building layout plan. Therefore, there was no legal problem even if the layout plan is modified according to the measured results, so the building layout plan was modified through RE. Consequently, it was confirmed that a case building under construction became sustainable through RE, and that sustainable construction management was possible by preventing construction schedule delays, increased construction costs, and waste generation.

show abstract

“…Cultural and historical heritage of a country plays a role of paramount importance for education and developing of group identity and stimulating tourism with positive effect to economy. In recent years, cultural heritage safety and conservation are rapidly evolving thanks to the growing of advanced and non-invasive technologies and methods [1,2,3]. Among them, Structure from Motion (SfM) photogrammetry is a low-cost, fast, contactless, non-invasive and nondestructive technique, which has a large number of application areas (archaeology, geoscience, structural geology, etc.)…”

Section: Introductionmentioning

confidence: 99%

Structure From Motion Survey of Statue for Finite Element Modelling

Vincenti,

Caponero,

Lamonaca

et al. 2023

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

View full text Add to dashboard Cite

Iconic sculptures are a fundamental part of the cultural heritage of a country, being also a crucial tourism pull factor for the museums housing them. However, they are frequently rather antique, damaged during the elapsed centuries and often made of fragile materials. Moreover, they can be exposed to substantial natural and anthropic hazards, such as earthquake and traffic vibrations. This is also the case of the "Sarcophagus of the Spouses" at the National Etruscan Museum of Villa Giulia in Rome, Italy, which is exposed to the vibrations generated by a surface tramway line and an underground railway line. The multidisciplinary MONALISA project will design a base isolation system starting from the finite element modelling of the statue, whose geometry is however rather complex and whose location is within a glass case. Therefore, a contactless survey procedure was necessary and a low-cost structure from motion technique delivered a geometric mesh, which was revised and simplified to be imported in a finite element code. The finite element model was then used to perform preliminary dynamic modal analyses, to be further calibrated with ambient vibration data.

show abstract

An overview of 3D laser scanning techniques and application on digitization of historical structures

Cited by 8 publications

References 20 publications

Blade Element Theory Model for UAV Blade Damage Simulation

Blade Element Theory Model for UAV Blade Damage Simulation

Reverse Engineering of Building Layout Plan through Checking the Setting out of a Building on a Site Using 3D Laser Scanning Technology for Sustainable Building Construction: A Case Study

Structure From Motion Survey of Statue for Finite Element Modelling

Contact Info

Product

Resources

About