3d Geometric Model of Transparent Tower Equipment Display in OpenGL

2014 ◽  
Vol 722 ◽  
pp. 281-284 ◽  
Author(s):  
Hai Ru Yang ◽  
Guo Zhi Chen ◽  
Hui Zhen Wang ◽  
Liang Li
Keyword(s):  
Dynamic Model ◽  
3D Model ◽  
Geometric Model ◽  
Three Dimensional ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Tower Equipment ◽  
3D Geometry ◽  
High Level ◽  
3D Geometric Model

It’s difficult to describe the 3d geometry and to establish the 3d model of tower equipment in OpenGL. High-level command functions to define complex three-dimensional modeling is not provided in OpenGL. This paper introduces 3d model of the tower equipment how to display dynamically in OpenGL. Interface of OpenGL import 3d model is description in detailed. Storaging format and reading file of STL (Stereo Lithography) are elaborated. How to build the 3d model is descripted. When tower equipment displayed dynamically, what is the key step to establish the model of tower equipment. The dynamic model of the whole tower equipment is displayed, in order to see clearly the structure of tower equipment.

Profile Surface Construction and Pressure Angle Analysis of a New Type of Globoidal Indexing Cam

2010 ◽  
Vol 29-32 ◽  
pp. 1608-1614 ◽  
Author(s):  
Lei Li ◽  
Xian Ying Feng ◽  
Zi Ping Zhang ◽  
Xing Chang Han ◽  
Ya Qing Song
Keyword(s):  
Geometric Model ◽  
Three Dimensional ◽  
Surface Equation ◽  
Cam Mechanism ◽  
Pressure Angle ◽  
Three Dimensional Modeling ◽  
Meshing Equation ◽  
New Type ◽  
Three Dimensional Coordinate ◽  
3D Geometric Model

This paper presents a new type of globoidal indexing cam mechanism with steel ball. The characteristic of this mechanism has double circular arc section for cam raceway. Due to this kind of cam raceway section the mechanism can realize approximate rolling transmission. According to rotary transform tensor theory profile surface equation of globoidal cam is established. Meshing equation is built through meshing theory, and profile surface equation is determined by meshing equation. Based on profile surface equation 3D geometric model for globoidal cam is established. MATLAB software is used to calculate three-dimensional coordinate points, these coordinate points are imported into Pro/E software, and finally 3D model for globoidal cam is established by three-dimensional modeling function of Pro/E software. Pressure angle equation of globoidal cam is also established. On the condition that the other parameters remain unchanged the variation law of values of pressure angle depended on cam angle and indexing plate rotary radius is obtained respectively.

Three-Dimensional Modeling of Container Cranes

2013 ◽  
Author(s):  
Andrea Arena ◽  
Arnaldo Casalotti ◽  
Walter Lacarbonara ◽  
Matthew P. Cartmell
Keyword(s):  
3D Modeling ◽  
3D Model ◽  
Initial Conditions ◽  
Three Dimensional ◽  
Container Cranes ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Time Marching ◽  
Constrained Model ◽  
2D And 3D

This work deals with three-dimensional (3D) modeling of container cranes including the hoisting cable length commands. The proposed models allow to effectively study the 3D motion caused by the eccentricity of initial conditions or loading conditions such as those induced by wind. The container is modeled as a 3D rigid body while the hoisting cables are treated either as inextensible trusses or as linearly elastic straight, taut cables. The 3D model with inextensible cables is shown to coalesce into existing two-dimensional models under the relevant planarity constraints. Details about the treatment of the internal inextensibility constraints are discussed. Time-marching simulations are carried out to show representative 2D and 3D responses to initial conditions and commanded motion of the trolley. The main differences between the constrained model and that with the elasticity of the cables are highlighted in the framework of a few significant design scenarios.

Three-Dimensional Recognition Technology for Rare English Words

2014 ◽  
Vol 644-650 ◽  
pp. 4121-4124
Author(s):  
Qiang Chen ◽  
Li Mei Xu
Keyword(s):  
3D Modeling ◽  
3D Model ◽  
Parallel Evolution ◽  
Three Dimensional ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
3D Data ◽  
Evolution Computation ◽  
Fitting In ◽  
The Relationship

This paper mainly studies modeling and recognition of 3D English words’ images. With the development of secondary modeling, segmentation and recognition theories and the application of evolution computation in 3D modeling and recognition, this paper analyzes the issues of parameter fitting in the 3D model, multi-object scene segmentation and parts recognition aiming at the 3D data features in the English words. The 3D model is used as the primitives part to model and segment the scenes and the group parallel evolution and the relationship matching theories are introduced into the 3D modeling and recognition to deeply identify the rare English words’ images. The paper searches for a practical and efficient three-dimensional modeling and identification scheme.

MRI-Based Three Dimensional Modeling of Stenting Procedure

2011 ◽  
Author(s):  
Shijia Zhao ◽  
Linxia Gu ◽  
Shailesh Ganpule
Keyword(s):  
Computational Simulation ◽  
Three Dimensional ◽  
Patient Specific ◽  
Open Cell ◽  
Mechanical Responses ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Closed Cell ◽  
Stenosed Artery ◽  
3D Geometry

In this work, the stents-induced mechanical responses of a patient-specific common carotid artery (CCA) were evaluated through computational simulation. The realistic 3D geometry of the artery was constructed from the MRI data. Two types of self-expanding stent design (open-cell and closed-cell) were used to restore the blood flow inside the 60% stenosed artery. The resulting lumen gain, dog-boning effect and arterial stress were estimated. Results suggested that the artery was straightened after stent implantation, and the open-cell design led to bigger lumen gain, better conformability, and less dog-boning effect. This work may facilitate the development of new stent designs.

scholarly journals Agustín de Betancourt’s Optical Telegraph: Geometric Modeling and Virtual Reconstruction

2020 ◽  
Vol 10 (5) ◽  
pp. 1857 ◽  
Author(s):  
José Ignacio Rojas-Sola ◽  
Eduardo De la Morena-De la Fuente
Keyword(s):  
3D Modeling ◽  
Geometric Modeling ◽  
3D Model ◽  
18Th Century ◽  
Three Dimensional ◽  
Assembly System ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Virtual Reconstruction ◽  
History Of

This article shows the geometric modeling and virtual reconstruction of the optical telegraph by Agustín de Betancourt and Abraham Louis Breguet developed at the end of the 18th century. Autodesk Inventor Professional software has been used to obtain the three-dimensional (3D) model of this historical invention and its geometric documentation. The material for the research is available on the website of the Betancourt Project of the Canary Orotava Foundation for the History of Science. Thanks to the three-dimensional modeling performed, it has been possible to explain in detail both its operation and the assembly system of this invention in a coherent way. After carrying out its 3D modeling and functional analysis, it was discovered that the transmissions in the telegraph were not performed by hemp ropes but rather by metal chains with flat links, considerably reducing possible error. Similarly, it has also been found that the use of the gimbal joint facilitated the adaptability of the invention to geographical areas where there was a physical impediment to the alignment of telegraph stations. In addition, it was not now necessary for the telescope frames to be located parallel to the mast frame (frame of the indicator arrow) and therefore they could work in different planes.

Three-Dimensional Modeling Design on Multifunctional Office Chair for Fitness on Solidworks

2013 ◽  
Vol 655-657 ◽  
pp. 245-248
Author(s):  
Qing Quan Li ◽  
Hai Tao Wu ◽  
Hong Bin Liu ◽  
Jie Liu
Keyword(s):  
3D Modeling ◽  
3D Model ◽  
Three Dimensional ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Modeling Software ◽  
Design Requirements ◽  
Office Chair

Established the model of multifunctional office chair for fitness, using 3D modeling software Solidworks, finished the 3D model of parts and parts assembly according to the design requirements of multifunctional office chair, visually and efficientlly. Importantly, this chair is the combination of fitness and massage function. So it is practical and cnvenient to the office crowd.

Using 3D Scanning Techniques in Orthopedic Systems Modeling

2017 ◽  
Vol 15 (13) ◽  
pp. 41-47 ◽  
Author(s):  
Mihai-Constantin Balaşa ◽  
Ştefan Cuculici ◽  
Cosmin Panţu ◽  
Simona Mihai ◽  
Alexis-Daniel Negrea ◽  
...  
Keyword(s):  
Reverse Engineering ◽  
Human Body ◽  
3D Model ◽  
Three Dimensional ◽  
Orthopedic Implants ◽  
3D Scanning ◽  
Specialized Software ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Modeling Techniques

AbstractDesigning orthopedic implants with a long lifespan is essential for improving patients’ quality of life. It is necessary to develop new products with a high degree of personalization for the human body. Physicians and engineers analyzed the geometry and behavior of healthy joints’ motion under specific load conditions as well as the behavior over time and lifetime of orthopedic implants fitted to patients to improve their quality. The paper presents the way in which three-dimensional modeling techniques using specialized software (Catia, SolidWorks) can be combined with reverse engineering techniques (3D scanning) to optimize the design of orthopedic implants. The design of an implant consists of its three-dimensional modeling, as well as simulation of its integration into the human body, in order to analyze its behavior during motion. Therefore, it is necessary not only to 3D model the parts that make up the implant itself, but also to 3D model the bone to which the implant will be fitted. The paper highlights the complementarity of the classic modeling techniques with the reverse engineering techniques, which is necessary because the design of the parts that make up the implant itself can be achieved by specialized software modeling techniques, while the bones, having complex geometries, are better suited to 3D Modeling by scanning.

Research of Characteristics of a Remote Control Weapon Station's Muzzle Vibration when Shooting on the Move

2012 ◽  
Vol 510 ◽  
pp. 467-471 ◽  
Author(s):  
Dong Ming Dai ◽  
Bao Quan Mao ◽  
Li Xu ◽  
Chuan You Wang ◽  
Yong Liang Wu
Keyword(s):  
Remote Control ◽  
Dynamic Analysis ◽  
Dynamic Model ◽  
Three Dimensional ◽  
Dynamics Simulation ◽  
Analysis Software ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Stable Conditions ◽  
Modeling Software

Through analysising the structure of the Remote Control Weapon Station (RCWS) and simulating shooting on the move to obtain the characteristics of the muzzles vibration, we use the three-dimensional modeling software SolidWorks and dynamic analysis software RecurDyn to build the integrated dynamic model with road, cars and guns. Meanwhile we verify the correctness of the model. At different speeds and different road conditions we did the dynamics simulation of the Remote Control Weapon Station for the continuous firing on the move and obtained the vibration characteristics of the muzzle, which provided a reference for the operator to control the Remote Control Weapon Station in more stable conditions and improved shooting accuracy.

scholarly journals ОСОБЛИВОСТІ ЗАСТОСУВАННЯ СУЧАСНИХ ПРОГРАМ У ДИЗАЙН-ПРОЕКТУВАННІ ЮВЕЛІРНИХ ВИРОБІВ

2020 ◽  
pp. 109-118
Author(s):  
М. М. Рубанка ◽  
Н. В. Остапенко ◽  
А. І. Рубанка
Keyword(s):  
Comparative Analysis ◽  
3D Model ◽  
Three Dimensional ◽  
Mechanical Systems ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Modern Methods ◽  
General Scientific ◽  
3D Software

The purpose of the article is to analyze the applicability of modern software for design-projecting of models of jewelry on the example of creation of a 3D model of a flat medallion; such process of creation includes the following steps: development of an algorithm; check for the errors; determination of the main characteristics. When conducting the researches, a set of general scientific approaches has been used, in particular: visual-analytical and system-informational approaches, modern methods of analysis of mechanical systems, as well as the method of classifications. The programs for three-dimensional modeling are listed; the peculiarities of their use and their functional possibilities are revealed. Based on the analysis of peculiarities of design-projecting of jewelry, the applicability of modern software is identified, in particular, the applicability of Rhinoceros 3D commercial software for three-dimensional NURBS-modeling. The development of engineering methods of designing of jewelry. The comparative analysis of programs for design-projecting of jewelry is performed. The proposed algorithm for creation of 3D model of a flat medallion using the Rhinoceros 3D software for three-dimensional NURBS-modeling is described. A standard algorithm for the creation of a 3D model of a flat medallion is developed. The recommendations regarding the use of Rhinoceros 3D software for three-dimensional NURBS-modeling in jewelry are made.

scholarly journals Improving the accuracy of manufacturing long shafts and axes of precast rotors

2019 ◽  
Vol 135 ◽  
pp. 01060
Author(s):  
Mikhail Popov ◽  
Andrei Popov ◽  
Luai Al-Obaidi
Keyword(s):  
Technological Process ◽  
3D Model ◽  
Three Dimensional ◽  
Axial Direction ◽  
Work Piece ◽  
Functional Relationships ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Combine Harvester ◽  
Special Complex

The article is devoted to the methods which help to achieve precision of manufacturing long parts by means of mathematical modeling and dimensional analysis. The possibility of three-dimensional modeling of the shaft of the beater combine harvester “Vector” is considered and the model of turning of a long shaft is presented. The solution of problems arising in the manufacture of long shafts is possible by selecting the best way to install the work piece on the machine and calculate the optimal allowances of the work piece. Method of ad-justing the milling machine, using a special complex is introduced. For the analysis of technological process we will use the method of graph theory. Graph functional relationships established technological dimensional chains and is made up of the original equation. The solution of these equations allows us to find the optimal operating allowances and dimensions in the axial direction. To simplify and improve the calculations, we use the T-Flex CAD 3D complex module, translating the obtained formulas into a parametric table and linking the variables with the 3D-model. Thus, we obtain a simulation dynamic model of dimensional connections of the technological process of manufacturing the shaft. Simulation of dimensional connections of the shaft manufacturing process in the radial direction also determined the operating allowances and dimensions. The proposed research methods are universal and can be applied to any details of this class.

Sign in / Sign up

Export Citation Format

Share Document