Three-dimensional Digital Design Research Articles

Application of 3D Design of Overhead Transmission Line Based on Laser Point Cloud Technology

The overhead transmission line is characterized by its high quantity, widespread, and complicated spot. Besides, it is easily influenced by external factors such as climate, geographical and social environment. In order to eliminate the influences above as much as possible, three-dimensional digital design is carried out in the design stage of the transmission line. Furthermore, the data collected by laser-point cloud technology, which can provide more accurate information, can be used to model geographic information rapidly and accurately, such as cross-over objects and digital elevation models. After that, based on the geographic information model imported into the 3D design platform, the ontology model of the overhead line can be completed. The overhead line model, like that, is able to be used for route optimization, check of the important cross, electric, and collision, as well as statistics on the cleaning of transmission line corridors. Compared with ordinary measurement data, laser point cloud technology can improve the design efficiency of overhead transmission line engineering, reduce design changes, and improve quality.

Application of 3 D digital technology in transmission line engineering and waste soil disposal mechanization construction

Under the background of the innovation in the field of construction engineering toward the direction of intelligence and digitalization, the three-dimensional digital design means with the digital information model as the core has gradually become the main content of the industry discussion in the new era. According to the cumulative experience of transmission line construction in recent years in our country, three-dimensional digital technology can simulate and arrange the construction link comprehensively during the construction of the project, and shorten the construction period and reduce the cost. Therefore, on the basis of understanding the current situation of transmission line engineering and the mechanized construction of residual soil disposal, this paper deeply discusses how to apply three-dimensional digital technology in the mechanized construction of transmission line engineering and residual soil disposal according to the research situation of three-dimensional digital technology at home and abroad. The final experimental results show that the 3D digital technology has a good application effect during the project construction, which is helpful to guide the high-quality development of power design industry in the new era.

Application of 3 D digital technology in transmission line engineering and waste soil disposal mechanization construction

Under the background of the innovation in the field of construction engineering toward the direction of intelligence and digitalization, the three-dimensional digital design means with the digital information model as the core has gradually become the main content of the industry discussion in the new era. According to the cumulative experience of transmission line construction in recent years in our country, three-dimensional digital technology can simulate and arrange the construction link comprehensively during the construction of the project, and shorten the construction period and reduce the cost. Therefore, on the basis of understanding the current situation of transmission line engineering and the mechanized construction of residual soil disposal, this paper deeply discusses how to apply three-dimensional digital technology in the mechanized construction of transmission line engineering and residual soil disposal according to the research situation of three-dimensional digital technology at home and abroad. The final experimental results show that the 3D digital technology has a good application effect during the project construction, which is helpful to guide the high-quality development of power design industry in the new era.

Optimization of Assembly Process Design about Cable based on MBD in Spacecraft Field

An important part of the low-frequency cable network spacecraft, in order to improve the efficiency of the spacecraft’s low-frequency cable network assembly process, according to the characteristics of the spacecraft cable network, based on the three-dimensional digital design of the spacecraft cable network, the spacecraft based on the three-dimensional model. The design and optimization of the cable network final assembly, a digital cable network final assembly was proposed to achieve the purpose of improving the efficiency and reliability of the cable network final assembly.

Research on Auxiliary Construction System of Transmission Engineering Based on 3D Digital Achievements

In order to take full advantage of the three-dimensional digital design data and solve the traditional construction schemes’ problems better, characteristics of three-dimensional digital data and the shortcomings of traditional construction management methods in the paper are analyzed. The organization management mode of 3D digital results is studied to construct a full information 3D model library by combing the relationship between models, attributes, documents, drawings, etc. On the basis of this, combined with the construction process of transmission engineering, a three-dimensional auxiliary construction application platform for transmission engineering based on three-dimensional digital design results is established. Through the software platform to manage, process, analyze and mine massive data, on the one hand, the integration, interaction and sharing of multi-source heterogeneous data are realized; on the other hand, the three-dimensional digital technology is applied to the construction process to realize the three-dimensional visualization of the construction process of the transmission engineering, thus providing a new solution for solving the construction problem.

Three-Dimensional Digital Design for Osteotomy in the Treatment of Congenital Hemivertebra

To establish a new three-dimensional (3D) digital design method for osteotomy and assess its application value in the surgical treatment of hemivertebrae. Preoperative 3D digital designs for osteotomy of the hemivertebrae were performed, which included computer simulation of the osteotomy and the internal fixation process, and computer-assisted design (CAD) of the templates for osteotomy of the hemivertebrae, pedicle screw positioning, and internal fixation rods. Template-guided osteotomy of the hemivertebrae plus pedicle screw and rod internal fixation were accurately implemented. The preoperative use of this new computer-aided 3D digitized and paperless surgical design can improve the safety, accuracy, and operative time for osteotomy in the treatment of hemivertebrae.

Three-Dimensional Digital Design for Osteotomy in the Treatment of Congenital Hemivertebra

To establish a new three-dimensional (3D) digital design method for osteotomy and assess its application value in the surgical treatment of hemivertebrae. Preoperative 3D digital designs for osteotomy of the hemivertebrae were performed, which included computer simulation of the osteotomy and the internal fixation process, and computer-assisted design (CAD) of the templates for osteotomy of the hemivertebrae, pedicle screw positioning, and internal fixation rods. Template-guided osteotomy of the hemivertebrae plus pedicle screw and rod internal fixation were accurately implemented. The preoperative use of this new computer-aided 3D digitized and paperless surgical design can improve the safety, accuracy, and operative time for osteotomy in the treatment of hemivertebrae.

The Information Model of 3D Design and Manufacture Facing Digital Factory

Digital factory is a new form of organization of production. To meet the urgent needs of three-dimensional digital design and manufacture in business, the paper put forward the new digital factory concept and foundation .On the based of MBD(Model based Definition) , the phase of integrated design information, process information and manufacturing information were integrated, the data, organizational model were researched, which realized he paperless management of digital design and manufacturing. Finally, the practical application was the validation to theoretical in an enterprise. The results showed that digital factory achieved the optimal management of product design and manufacturing process.

Mixed Reality-Based Visualization Interfaces for Architecture, Engineering, and Construction Industry

Varied computing devices and automated sensors will enable new human-computer interface paradigms for interacting with digitally managed project information. The writers therefore propose the development of Mixed Reality (MR)-based computer interfaces, and especially Augmented Reality systems, for the architecture, engineering, and construction industry and describe the technologies and principles for applying such computer interfaces to support all phases of the constructed facility project life cycle. An Augmented Reality computer-aided drawing prototype is described as an experimental platform to study the human factors issues in interacting with Augmented Reality three-dimensional digital design models. Two critical research needs are cited for realizing effective Augmented Reality systems: (1) human factors research for development of visualization tools to enhance design comprehension and support collaborative work, and (2) the development of a technology infrastructure for “augmented” control and inspection interfaces to directly access digital project plan and site information that may be spatially referenced and displayed in the field. Research should be geared to advance knowledge regarding spatial cognition, human–computer interfaces, and computer-mediated human-to-human interactions, and it should address application of MR to all phases of the project life cycle.

Spatial Integration in Construction

Work in construction always requires moving within, and interacting with, a complex environment while handling heavy materials and building elements to be joined, inserted, or aligned. Modern design software is able to digitally model all of those elements in their spatially correct configuration, and without interference. When it comes to the actual construction, however, the spatial models do not find any use. Twenty years after the manufacturing industry began using electronic design data to control their machinery, construction is also getting ready to move away from its longstanding tradition of working with paper-based blueprints. The newest steps on the path toward the use of three-dimensional digital design data in support of site operation are stimulated by the global positioning system and the many uses of lasers. Surveying has always performed critical functions on construction sites, such as marking building layouts, anchor bolts, concrete formwork, or bridge bearings. The objective of spatial...

Spatial Mechanism Design in Virtual Reality With Networking

Mechanisms are used in many devices to move a rigid body through a finite sequence of prescribed locations. The most commonly used mechanisms are four-bar planar mechanisms that move an object in one plane in space. Spatial mechanisms allow motion in three-dimensions (3D), however, to date they are rarely implemented in industry in great part due to the inherent visualization and design challenges involved. Nevertheless, they do provide promise as a practical solution to spatial motion generation and therefore remain an active area of research. Spatial 4C mechanisms are two degree-of-freedom kinematic closed-chains consisting of four rigid links simply connected in series by cylindrical (C) joints. A cylindrical joint is a two degree-of-freedom joint, which allows translation and rotation about a line in space. This paper describes a synthesis process for the design of 4C spatial mechanisms in a virtual environment. Virtual reality allows the user to view and interact with digital models in a more intuitive way than using the traditional human-computer interface (HCI). The software developed as part of this research also allows multiple users to network and share the designed mechanism. Networking tools have the potential to greatly enhance communication between members of the design team at different industrial sites and therefore reduce design costs. This software presents the first effort to provide a three-dimensional digital design environment for the design of spatial 4C mechanisms.