Gray Image Composition Method for Measurement Based on Multi-Software Cooperation

2014 ◽  
Vol 889-890 ◽  
pp. 1052-1056
Author(s):  
Fei Hao ◽  
Song Qing Zhu ◽  
Hai Tao Gao
Keyword(s):  
Machine Vision ◽  
Three Dimensional ◽  
Image Synthesis ◽  
Image Composition ◽  
Gray Image ◽  
Engineering Software ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Modeling Software ◽  
Synthetic Images

One method named image synthesis was proposed for gray image composition to meet the requirement that algorithm research of machine vision needed a lot of images. Firstly, two modules, i.e., modeling module and camera module, of some engineering software were compared and images will be obtained by using three-dimensional modeling software cooperating with VRay plug-in. Then, parameter setting and adjustment for VRay plug-in was studied. Lastly, measurement experiments were carried out by using synthetic images. The experimental results demonstrate that 1μm measuring accuracy is possible under the condition that the distance between calibration part and camera was equal to that between parts and camera. The synthetic images can be used for algorithm research of machine vision.

scholarly journals Manufacturing of Flexible Surgical Guide for Fully Edentulous Patients

2012 ◽  
Vol 488-489 ◽  
pp. 1001-1005 ◽  
Author(s):  
Jamal Kashani ◽  
Zohreh Arabshahi ◽  
Mohammed Rafiq Abdul Kadir ◽  
Abbas Azari
Keyword(s):  
Three Dimensional ◽  
Internal Diameter ◽  
Surgical Guide ◽  
Three Dimensional Modeling ◽  
Surgical Guides ◽  
Dimensional Modeling ◽  
Drill Diameter ◽  
Modeling Software ◽  
Three Dimensional Models ◽  
Edentulous Patients

Despite efficiency of modern implantology, unplanned perforation and drill deviation could be happened during freehand placement. The aim of this study was to provide a methodology for fabricating dental surgical drill guide for fully edentulous patients while it was flexible in term of changing drill diameter. The data of patient consisted of bone anatomy and radio-opaque template obtained from computed tomography. Jawbone and radio-opaque template three dimensional models converted into a three dimensional modeling software by means of an image processing package. Based on jawbone anatomy and radio-opaque template, implantation plan and design of surgical guides were carried out in three dimensional software. Rapid prototyping technique was used to manufacture several surgical guides to be used in different drilling sequences. Finally stainless steel tubes were accommodated passage of drill. Sequential surgical guides were different only in terms of the metal tubes internal diameter. This provides the ability of changing diameter of the implant or drill after fabricating surgical guide.

scholarly journals A behavioral box for tactile tasks discrimination

2020 ◽  
Author(s):  
Jose Wanderson Silva ◽  
Luiz Marcos Gonçalves
Keyword(s):  
Physical Simulation ◽  
Low Cost ◽  
Three Dimensional ◽  
Sensory System ◽  
Tactile Discrimination ◽  
Open Hardware ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Modeling Software ◽  
To Receive

Among the studies done with rodents, the behavioral ones stand out. To perform these studies, the behavioral boxes are commonly used. These are devices in which the rodents perform some task to receive a reward. These animals are considered excellent subjects for studying the tactile sensory system, since they use their whiskers to locate and discriminate objects. In this work the goal is studying the sensory system of rodents in tasks in which the animals must discriminate the width of an aperture, using only their whiskers to receive a reward. We aim to develop an automated open-hardware behavioral box to perform task of tactile discrimination in rodents. For such, we designed the box using a three-dimensional modeling software and its control is implemented with Arduino, which was tested in a computer model trhough physical simulation. All used components are low cost and can be found or developed in Brazil. The present study provides an important tool for the study of the tactile sensory system, that makes possible other laboratories to build their own behavior box for tactile studies.

Fractals In Three-Dimensional Space. I-Fractals

2017 ◽  
Vol 5 (3) ◽  
pp. 51-66 ◽  
Author(s):  
Л. Жихарев ◽  
L. Zhikharev
Keyword(s):  
Dimensional Space ◽  
Three Dimensional ◽  
Georg Cantor ◽  
Fractal Sets ◽  
Three Dimensional Modeling ◽  
Mathematical Programs ◽  
Dimensional Modeling ◽  
Cutting Out ◽  
Modeling Software ◽  
Three Dimensional Models

It has long been known that there are fractals, which construction resolve into cutting out of elements from lines, curves or geometric shapes according to a certain law. If the fractal is completely self-similar, its dimensionality is reduced relative to the original object and usually becomes fractional. The whole fractal is often decomposing into a set of separate elements, organized in the space of corresponding dimension. German mathematician Georg Cantor was among the first to propose such fractal set in the late 19th century. Later in the early 20th century polish mathematician Vaclav Sierpinski described the Sierpinski carpet – one of the variants for the Cantor set generalization onto a two-dimensional space. At a later date the Austrian Karl Menger created a three-dimensional analogue of the Sierpinski fractal. Similar sets differ in a number of parameters from other fractals, and therefore must be considered separately. In this paper it has been proposed to call these fractals as i-fractals (from the Latin interfican – cut). The emphasis is on the three-dimensional i-fractals, created based on the Cantor and Sierpinski principles and other fractal dependencies. Mathematics of spatial fractal sets is very difficult to understand, therefore, were used computer models developed in the three-dimensional modeling software SolidWorks and COMPASS, the obtained data were processing using mathematical programs. Using fractal principles it is possible to create a large number of i-fractals’ three dimensional models therefore important research objectives include such objects’ classification development. In addition, were analyzed i-fractals’ geometry features, and proposed general principles for their creation.

Design and Entity Modeling of Wet Double Clutch

2012 ◽  
Vol 490-495 ◽  
pp. 2409-2413
Author(s):  
Xiao Lin Guo ◽  
Jia Ping Pan ◽  
Wei Sun ◽  
Gan Chen
Keyword(s):  
Heat Capacity ◽  
Three Dimensional ◽  
Friction Material ◽  
Friction Power ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Structural Dimensions ◽  
Modeling Software

In this paper, we calculates the main parameters of a c-class car, choose the friction material, confirm the structural dimensions of pivotal components, acquires the friction power and heat capacity, and design three kinds of wet double clutch arranged radially with hydraulic driving unit, arranged longitudinally with hydraulic driving unit and arranged longitudinally with mechanical driving unit respectively according to the dimensions of interspaces. Finally, the entity modeling of each structure is established through the three-dimensional modeling software.

Traffic Accident Reconstruction Technology Research

2013 ◽  
Vol 756-759 ◽  
pp. 946-951
Author(s):  
Xiao Long Yang ◽  
Ping Li ◽  
Tao Lv ◽  
Xue Hua Liao
Keyword(s):  
Traffic Accident ◽  
Traffic Accidents ◽  
Three Dimensional ◽  
Conservation Of Energy ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Vehicle Collision ◽  
Modeling Software ◽  
Three Dimensional Models ◽  
Energy And Momentum

Based on the virtual simulation theory, we used three-dimensional modeling software to build modeling road facilities (vehicles, trees, street lights, etc.) for simulating the accident environment, and by using OpenGL technology, achieved reading, displaying and controlling the three-dimensional models. This dynamically realized the three-dimensional animated simulation of vehicle movement. Simultaneously we have calculated in progress the simulation of vehicle crash with the basic theory of automobile collision, vehicle collision model and the law of conservation of energy and momentum. Finally, we constructed a flexible platform for the simulation experiment. The platform is enabling to add and update road, trees, street lamps and house on the simulation environment dynamically, and has ability to analysis the traffic accident. This could give an assistant to the handling traffic accidents.

Based on Pro/E and Ansys'Finite Element Analysis of Conveying Roller

2012 ◽  
Vol 271-272 ◽  
pp. 797-800
Author(s):  
Chan Juan Chen ◽  
Zhou Wen
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Local Strain ◽  
Analysis Software ◽  
Roller Conveyor ◽  
Element Analysis ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Modeling Software

In order to study conveying roller force and improve its mechanical properties, we use three-dimensional modeling software Pro/E to build the solid model of the Apple box delivery device’s conveying roller. Using finite element analysis software Ansys to analyze conveying roller’s bending stress, we can get images of local strain and displacement contours .Contrasting with factory’s broken roller conveyor, we can find that: through the establishment of appropriate boundary conditions, Ansys can accurate finite element analysis, and provide the basis for the conveying roller structure improvements.

Design of Shock-Absorbing System for Disaster Rescue Robot

2014 ◽  
Vol 989-994 ◽  
pp. 3298-3301
Author(s):  
Lei Xie ◽  
Yu Ming Qi
Keyword(s):  
Modular Design ◽  
Three Dimensional ◽  
First Aid ◽  
Parametric Model ◽  
Landing Gear ◽  
Rescue Robot ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Modeling Software

Disaster Rescue Robot is a small caterpillar robot used for carrying first aid articles, reasonable shock-absorbing system is an indispensable part to reduce the rush of the ground because it has to plummet from a certain level to the ground when it works. We use the method of modular design in this article and design the landing gear based on the performance of conical spring in order to absorb some of the forces during a fall. Then the three-dimensional modeling software is used to establish the parametric model of the robot shock-absorbing system to provide an effective way for the design of the Disaster Rescue Robot.

Finite Element Modes Analysis of Involute Planetary Gear in RV Reducer

2010 ◽  
Vol 44-47 ◽  
pp. 1018-1021 ◽  
Author(s):  
Wei Dong He ◽  
Ying Hui Zhang
Keyword(s):  
Finite Element ◽  
Natural Frequency ◽  
Vibration Mode ◽  
Three Dimensional ◽  
Planetary Gear ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Involute Gear ◽  
Modeling Software ◽  
Rv Reducer

Paper built the solid model of RV involute planetary gear with three dimensional modeling software Pro/E, dumped this model into ANSYS with IGES middle exchange file, define the three crankshaft solid connect with the three involute gear, carried on the modal analysis with finite element method, obtained the natural frequency and the vibration mode,. Results put out the danger frequency focus on 3645Hz, 8610Hz ,16729etc., then paper examined the different natural frequency and contrast them with the natural frequency of whole RV reducer, results shows that when the input speed of reducer turning at 1500r/min, for the three involute gear it’s not easy to cause resonance, but being the incentive frequency is 525Hz, it should to pay attention to avoid 451.63Hz, which was a key natural frequency of RV reducer, finally paper laid the system's dynamic response calculation and analysis of RV reducer.

The Influence of Bolt Layout Form to the Dynamic Stiffness of the Column

2014 ◽  
Vol 577 ◽  
pp. 222-227
Author(s):  
Chen Shen ◽  
Zhong Ping Hua ◽  
Meng Sha Zhang ◽  
Zhou Zhang
Keyword(s):  
Natural Frequency ◽  
Dynamic Stiffness ◽  
Three Dimensional ◽  
Element Analysis ◽  
Three Dimensional Modeling ◽  
Lower Natural Frequency ◽  
Dimensional Modeling ◽  
Modeling Software ◽  
Set Up ◽  
Bolt Arrangement

In the case of the column materials to determined, the lower natural frequency of column is determined by the number of coupling bolts and bolt arrangement. In this paper, by three-dimensional modeling software of Solidwork column model of hobbing is set up, then by using ANSYS finite element analysis software. The initial four order natural frequency to the different number of connection bolts and the different arrangement of bolt are respectively calculated. After the initial four order natural frequency are contrasted, we conclude that in the case of merely considering dynamic stiffness this study reach it is the most reasonable to select 8-12 bolts in the hobbing of YKQ31300, and different bolt arrangement of effects on the dynamic stiffness of the column is very small and can be ignored.

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