Gradient contouring and texture modelling based CAD system for improved TB classification

Rajeswari, J.; Raja, J.; Jayashri, S.

doi:10.1007/s10515-021-00304-y

Cited by 8 publications

(4 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Include importing hull surfaces, deck generation, stiffener arrangements, and openings. To input the hull surface, it is necessary to obtain the relevant information such as the ship hull size, perform diffraction transformation on the size data to generate the hull surface, and input it into the computeraided system [18]. e generation of the deck needs to determine the deck parameters such as thickness, start and end rib, and height.…”

Section: D Structural Design Of Shipsmentioning

confidence: 99%

Application of Computer 3D Modeling Technology in Graphic Image Design

Liu

2022

Computational Intelligence and Neuroscience

View full text Add to dashboard Cite

In order to solve the problem that the manual input data work efficiency is low and the optimization cannot be achieved in the section modulus calculation, the author proposes a computer-aided 3D graphic design method for ship hull structure. First, complete the modeling of the ship hull, complete the statistical calculation of the size in the CAD platform, solve the static moment, and complete the three-dimensional modeling; Calculate the inertial load and wave load of the ship during work, and calculate the wave bending moment, and substitute it into the three-dimensional model for verification. Finally, according to the computer-aided three-dimensional graphic design process, the specification verification of the ship’s scale is completed, the graphic file is associated with the database, and the three-dimensional graphic design is completed. Experimental results show that the maximum stress of the original three-dimensional integrated graphic design of the ship is 202 MPa, and the maximum deformation is 87.352 mm. Based on the computer-aided three-dimensional integrated graphic design of the ship, the maximum stress is 226 MPa, and the maximum deformation is 76.234 mm. In conclusion: the hull obtained by the computer-aided three-dimensional graphic design of the ship can effectively reduce the total area and materials of the midsection structure of the ship, reduce the weight of the hull, and realize the optimal configuration of the midsection material of the ship.

show abstract

Section: D Structural Design Of Shipsmentioning

confidence: 99%

Application of Computer 3D Modeling Technology in Graphic Image Design

Liu

2022

Computational Intelligence and Neuroscience

View full text Add to dashboard Cite

show abstract

“…Pikina et al analyzed and introduced the evaluation criteria, entropy, and exergy of heat exchangers based on the second law of thermodynamics and studied their applications and connections [7]. Rajeswari et al proposed a thermal design method based on the optimization of the comprehensive performance of the heat exchanger, which fully considered the structure, size, performance of the heat exchange process of the heat exchanger, and the optimal relationship between them; a heat exchanger with low structural cost, low operating cost, and good heat transfer performance was obtained [8]. The entropy production reflects the understanding of the irreversible dissipation of the heat transfer process.…”

Section: Literature Reviewmentioning

confidence: 99%

Development of Intelligent CAD Technology for New Longitudinal Shell-Side Heat Exchange Equipment

Wu¹,

Zhu²

2022

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

In order to correct the errors of “periodic full-section calculation model” and “unit flow channel model,” the author proposes a numerical simulation method of a longitudinal flow shell-side heat exchanger based on CAD. The numerical simulation of the fluid flow and heat transfer characteristics of the three-blade orifice plate heat exchanger is carried out by using FLUENT software, and the “periodic full-section calculation model” and “unit flow channel model” are established, as well as the calculation results of comparative analysis. Experimental results show the following: With the increase of the inner diameter D of the heat exchanger shell, the calculation results of the two models are gradually reached. When D > 800 mm , the error of the calculation results of the two models has been reduced to about 10%; at this time, the “unit flow channel model” has practicability and applicability. When D ≤ 800 mm , the correction algorithm of the “unit flow channel model” is proposed, and the correction correlation formula of the pressure gradient and convective heat transfer coefficient is given. The revised results of the simulation can not only meet the engineering needs but also save computer resources and improve the calculation efficiency, which provides a theoretical basis for the development, improvement, and further industrial application of the “unit flow channel model” of the longitudinal shell-side heat exchanger.

show abstract

“…It solves the problem of the reuse of 3D shape models with similar shape features and has become a research hotspot after text retrieval, image retrieval, video retrieval, arti cial intelligence, computer vision, pattern recognition, and other elds. 3D shape retrieval mainly includes the following three steps: preprocessing, 3D shape feature extraction, and similarity comparison [1]. As the core technology of 3D shape retrieval, the research of 3D shape feature extraction technology has been a research hotspot in recent years.…”

Section: Introductionmentioning

confidence: 99%

Application of CAD Technology in Extracting Line Feature of Industrial Part Image

2022

Journal of Control Science and Engineering

View full text Add to dashboard Cite

In order to solve the problem that the properties of the acquired images in engineering are often poor and the features of the images are seriously lost, so that the image features cannot be effectively developed, an application method of CAD technology in the extraction of linear features of industrial parts images is proposed. Based on 3D computer-aided design (CAD) data, by solving the parameter transformation relationship between the CAD 3D Cartesian coordinate system and the image coordinate system, the target line feature is projected onto the image, and the initial value range of the image line feature is obtained. The edge point sequence is extracted by multiplication template matching, and the generated point sequence is fitted by the least square method to obtain the line equation of the image line feature. By solving the intersection of the intersecting lines of the image, the straight line segment representing the contour of the industrial part can be obtained with high precision. The experimental results show that the above algorithm is used to extract the line features of real industrial part images, and the median error of the difference between the reconstructed line length and the line length measured by the vernier caliper is 0.232 mm. The practice has proved that CAD technology has a certain auxiliary and guiding role in the research of industrial part image feature extraction algorithms. It can be applied to high-precision image measurement and reverse engineering of regular industrial parts. In engineering technology, it can help improve the automation level of industrial production.

show abstract

Gradient contouring and texture modelling based CAD system for improved TB classification

Cited by 8 publications

References 12 publications

Application of Computer 3D Modeling Technology in Graphic Image Design

Application of Computer 3D Modeling Technology in Graphic Image Design

Development of Intelligent CAD Technology for New Longitudinal Shell-Side Heat Exchange Equipment

Application of CAD Technology in Extracting Line Feature of Industrial Part Image

Contact Info

Product

Resources

About