Three-Dimensional Modeling and Analysis for Runner Blades of Turbine

2011 ◽  
Vol 121-126 ◽  
pp. 1521-1525
Author(s):  
Juan Xiong ◽  
Lan Feng Sun
Keyword(s):  
Three Dimensional ◽  
Freeform Surface ◽  
Two Dimensional ◽  
Modeling And Analysis ◽  
Dimensional Effect ◽  
Modeling Technology ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Turbine Runner ◽  
Cad Cam

In order to improve the design and the two-dimensional drawing identifying technology of freeform surface for the complicated components, such as turbine runner blades, based on the strong modeling technology of CAD/CAM and the software UG of CAD/CAM, detailed analyses three-dimensional modeling of turbine runner, then explain the design difficulties and three-dimensional effect of freeform surface, in order to resolve part of the design difficulties of freeform surface. Provide the original database for computer auxiliary fabricating and explain the practicability of CAD/CAM by analyses three-dimensional modeling of turbine runner.

Hydraulic Turbine Blades Modeling Based on Two-Dimensional Wooden Patterns

2013 ◽  
Vol 860-863 ◽  
pp. 1521-1524
Author(s):  
Si Qing Zhang ◽  
Guo Hua Ma ◽  
Yun Long Zhang ◽  
Dong Wang
Keyword(s):  
Numerical Simulation ◽  
Turbine Blades ◽  
Three Dimensional ◽  
Hydraulic Turbine ◽  
Francis Turbine ◽  
Two Dimensional ◽  
Three Dimensional Model ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Turbine Runner

There are many difficulties to design, processing and research on numerical simulation for Francis turbine because of the complexity of blade shape and the difficulty of solid modeling. Based on two-dimensional wooden patterns of Francis turbine blades, this article aims to complete blades three-dimensional modeling for Francis turbine runner with long and short blades by means of Pro-E software which has powerful 3D modeling function. After comparing three kinds of available methods to generate blade across section which provided by Pro-E, finally completed blades three-dimensional modeling by method of generating across section with point files, established a smooth and accurate three-dimensional model. The method provides an accurate physical model for the numerical simulation of the Francis turbine with long and short blades, as well as provides a feasible approach for hydro-mechanical blades modeling.

Development of a Forging Type Rapid Prototyping System; Automation of a Free Forging and Metal Hammering Working

2005 ◽  
Vol 17 (5) ◽  
pp. 523-528 ◽  
Author(s):  
Hidetake Tanaka ◽  
◽  
Naoki Asakawa ◽  
Masatoshi Hirao ◽  
Keyword(s):  
Rapid Prototyping ◽  
Three Dimensional ◽  
Experimental Results ◽  
Model Design ◽  
Plastic Working ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Cad Cam ◽  
Almost All ◽  
Rapid Prototyping System

The forging rapid prototyping we proposed based on CAD data involves numerically controlled free forging and metal hammer working as new three-dimensional modeling. Almost all products are now designed and developed using CAD/CAM, and rapid prototyping using CAD data is also used to model design previews or mock ups. Free forging and plastic working, however, have few ways to automate the process. We developed numerical controlled free forging and metal hammer working as new modeling for rapid prototyping. Experimental results demonstrate that our proposal provides feasible three-dimensional modeling as rapid prototyping.

Research on Modeling and Visualization Method of Geological Objects Based on VRML

2013 ◽  
Vol 448-453 ◽  
pp. 3766-3771
Author(s):  
Chang Yang ◽  
Hao Li ◽  
Peng Gao ◽  
Yu Feng Mao ◽  
Rong Chun Zhang
Keyword(s):  
Three Dimensional ◽  
Visualization Method ◽  
Analysis Software ◽  
Cross Sectional ◽  
Modeling And Analysis ◽  
Modeling Methods ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Modelling Method ◽  
Real Time Visualization

Geological strata conditions is restriction to the design and construction of projects .The significance of three-dimensional modeling of engineering rock mass is obviously for both construction and monitoring.However,the existing three-dimensional modeling methods have the disadvantages of low productivity and huge amounts of data . Focusing on these problems, a fast modelling method used to build geological model is presented in this paper. Compared with the special geological 3D modeling and analysis software ,VRML has many merits such as flexible visualization method, good transplantation of the visualization achievements , and independent platform . VRML also has the feasibility of low-bandwidth and the real-time visualization and browsing of the models .It is well suited to the visualization requirement of drilling data and cross-sectional data ,and provides a new solution for the realization of the geological visualization.

Research and Practice on the End Face Cylindrical Cam NC Machining Technology

2012 ◽  
Vol 220-223 ◽  
pp. 406-409
Author(s):  
Jie Huang ◽  
Hong Jun Liu
Keyword(s):  
Three Dimensional ◽  
Machining Accuracy ◽  
Milling Machine ◽  
Technical Problems ◽  
Research And Practice ◽  
Three Dimensional Modeling ◽  
Nc Programming ◽  
Dimensional Modeling ◽  
Cad Cam ◽  
Manufacture Engineer

This paper discussed the CAD / CAM technology of the end face cylindrical cam. The processing of end face cylindrical cam which used in textile machinery was analyzed, and the Processing plan was determined. Three-dimensional modeling and NC programming were done by respectively using PRO/E software and CAXA manufacture engineer software, machining accuracy, fixture and other key technical problems in the end face cylinder cam CAD/CAM process were solved. Acceptable product was processed in common three coordinates milling machine, and ultimately used in enterprises, and achieved good results.

Customized Orbit and Frontal Bone Implants

2020 ◽  
Vol 36 (06) ◽  
pp. 711-714
Author(s):  
Weitao Wang ◽  
Arya Namin ◽  
Tom Shokri ◽  
Yadranko Ducic
Keyword(s):  
Three Dimensional ◽  
Bone Grafts ◽  
Frontal Bone ◽  
Bone Reconstruction ◽  
Bone Implants ◽  
Modeling Technology ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Complex Anatomy ◽  
Rapid Fixation

AbstractOrbitocranial reconstruction objectives include creation of a solid barrier between intracranial contents and the environment allowing restoration of physiologic homeostasis and restoration of aesthetic craniofacial contours. Historically, bone grafts have been used for reconstruction but were fraught with unpredictable resorption and imperfect contouring given the complex anatomy of the orbitofrontal bones. With advances in three-dimensional modeling technology, alloplastic custom implants in orbital and frontal bone reconstruction have allowed for rapid fixation reducing surgical times and improved cosmesis.

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