The Simulation on Pro/e of Blique Plane Double-Enveloping Worm Gear

2010 ◽  
Vol 455 ◽  
pp. 388-391
Author(s):  
Yue Min Zhang ◽  
S. Lu ◽  
Gang Xie
Keyword(s):  
Numerical Model ◽  
Coordinate System ◽  
Surface Structure ◽  
Curve Surface ◽  
Worm Gear ◽  
Solid Model ◽  
Motion Simulation ◽  
Set Up ◽  
3D Solid

A reasonable coordinate system of planar double-enveloping worm is set up. The curve surface structure of worm gear were been analysis. The curve surfaces have been initiated by the program with MATLAB and numerical model has been drawn. The 3D solid model and motion simulation of planar double-enveloping worm gear have been emulated with the software of Pro / e.

Study on Solid Model Methods and Techniques of AutoCAD

2011 ◽  
Vol 219-220 ◽  
pp. 341-345
Author(s):  
Sheng Min Zhang ◽  
Wan Qiang Chu ◽  
Xin Fa Dong
Keyword(s):  
Solid Modeling ◽  
Solid Model ◽  
Operation Sequence ◽  
Methods And Techniques ◽  
Set Up ◽  
3D Solid ◽  
Different Parts

The paper introduces some effective methods to solve the problems of solid modeling with the software of AutoCAD. Make good use of views to avoid converting UCS frequently and set up proper layers aimed to the building or structure and draw solid in order to control the display of different parts of solid. According to analysis and research on 3D solid model, the authors also point out other techniques, such as the skills about Boolean Calculation and conclude that different operation sequence produces different result and sometimes don't need to input a data and also complete to cut of solid. These skills are helpful to make solid model.

scholarly journals Numerical Aspects of Particle-in-Cell Simulations for Plasma-Motion Modeling of Electric Thrusters

Aerospace ◽  
2021 ◽  
Vol 8 (5) ◽  
pp. 138
Author(s):  
Giuseppe Gallo ◽  
Adriano Isoldi ◽  
Dario Del Gatto ◽  
Raffaele Savino ◽  
Amedeo Capozzoli ◽  
...  
Keyword(s):  
Numerical Model ◽  
Computing Time ◽  
Computational Time ◽  
Electric Motors ◽  
Motion Modeling ◽  
Particle In Cell ◽  
Computing Platform ◽  
Hall Effect Thruster ◽  
Set Up ◽  
Pic Code

The present work is focused on a detailed description of an in-house, particle-in-cell code developed by the authors, whose main aim is to perform highly accurate plasma simulations on an off-the-shelf computing platform in a relatively short computational time, despite the large number of macro-particles employed in the computation. A smart strategy to set up the code is proposed, and in particular, the parallel calculation in GPU is explored as a possible solution for the reduction in computing time. An application on a Hall-effect thruster is shown to validate the PIC numerical model and to highlight the strengths of introducing highly accurate schemes for the electric field interpolation and the macroparticle trajectory integration in the time. A further application on a helicon double-layer thruster is presented, in which the particle-in-cell (PIC) code is used as a fast tool to analyze the performance of these specific electric motors.

Rendering 3D Solid Model

2015 ◽  
pp. 309-316 ◽  
Author(s):  
Cheng-Wei Huang ◽  
Ran-Zan Wang ◽  
Shang-Kuan Chen ◽  
Wen-Pin Fang
Keyword(s):  
Solid Model ◽  
3D Solid

scholarly journals Reliability Analysis and Motion Simulation of Steel Coil Upender Clamp

2011 ◽  
Vol 2-3 ◽  
pp. 924-927
Author(s):  
An Yuan Jiao ◽  
Feng Hui Wang
Keyword(s):  
Reliability Analysis ◽  
Driving Force ◽  
Motion Simulation ◽  
Steel Coil ◽  
Turnover Process ◽  
Set Up ◽  
Clamping Device

A kind of new steel coil upender clamping device was designed. The model was set up by use of SolidWorks and the reliability analysis and motion simulation was further performed in ADAMS. Because of risk at steel coil upender, once the accident appears, it gently slowed-up production and damaged the device, and it could cause people’s dying vitally, it is especially important to assure the longtime work and safety of device which we studied on. The results showed that the efficiency of turnover process of the device was high and the system could save driving force. These also provided some theory bases for the design of the device.

scholarly journals TOWARDS A DIGITAL TWIN OF A STORAGE TANK USING LASER SCAN DATA

2021 ◽  
Vol XLVI-4/W4-2021 ◽  
pp. 119-124
Author(s):  
L. Truong-Hong ◽  
N. Nguyen ◽  
R. Lindenbergh ◽  
P. Fisk ◽  
T. Huynh
Keyword(s):  
Data Storage ◽  
Storage Tank ◽  
Laser Scanning ◽  
Point Clouds ◽  
Solid Model ◽  
Shell Wall ◽  
Digital Twin ◽  
Oil Storage ◽  
Oil Storage Tank ◽  
3D Solid

Abstract. This paper proposes a methodology to automatically extract components of an oil storage tank from terrestrial laser scanning (TLS) point clouds, and subsequently to create a three-dimensional (3D) solid model of the tank for numerical simulation. The proposed method is integrated into a smart analysis layer of a digital twin platform consisting of three main layers: (1) smart analysis, (2) data storage, and (3) visualisation and user interaction. In this proposed method, primary components of the tank were automatically extracted in a consecutive order from a shell wall to roof and floor. Voxel-based RANSAC is employed to extract voxels containing point clouds of the shell wall, while a valley-peak-valley pattern based on kernel density estimation is implemented to remove outlier points within voxels representing to the shell wall and re-extract data points within voxels adjoined to the shell wall. Moreover, octree-based region growing is employed to extract a roof and floor from remaining point clouds. An experimental showed that the proposed framework successfully extracted all primary components of the tank and created a 3D solid model of the tank automatically. Resulting point clouds of the shell wall were directly used for estimating deformation and a 3D solid model was imported into finite element analysis (FEA) software to assess the tank in terms of stress-strain. The demonstration shows that TLS point clouds can play an important role in developing the digital twin of the oil storage tank.

Automatic Recognition of Multi-Axis Machining Features Based on Machining Process from 3D Solid Model

2015 ◽  
Vol 789-790 ◽  
pp. 873-877 ◽  
Author(s):  
Phung Xuan Lan ◽  
Hoang Vinh Sinh
Keyword(s):  
Automatic Recognition ◽  
Machining Process ◽  
Solid Model ◽  
Machining Features ◽  
Rule Based ◽  
Machining Feature ◽  
Complex Design ◽  
3D Solid ◽  
The Relationship

This paper presents an effective rule-based method for extracting and recognizing the machining features from 3D solid model. The machining feature is automatically recognized while considering the relationship between machining feature and machining process. This proposed method is capable of recognizing not only prismatic machining features but also multi-axis machining features from many kinds of complex design features in both protrusion and depression. It also succeeds in recognizing various types of interaction in a uniform way. The capability of the proposed method is demonstrated in one specific case study.

scholarly journals Studying and Generation of Saffron Flower's 3D Solid Model

2015 ◽  
Vol 19 ◽  
pp. 62-69 ◽  
Author(s):  
Mojtaba Zeraatkar ◽  
Khalil Khalili ◽  
Abolfazl Foorginejad
Keyword(s):  
Solid Model ◽  
3D Solid

Responses of Aluminium Alloy Pistons under Mechanical and Thermal Loads

2019 ◽  
Vol 969 ◽  
pp. 231-236
Author(s):  
Chandan Kumar ◽  
Nilamber Kumar Singh
Keyword(s):  
Thermal Analysis ◽  
Combustion Engine ◽  
Topological Optimization ◽  
Solid Model ◽  
Thermal Loads ◽  
Transient Thermal Analysis ◽  
Critical Areas ◽  
Temperature Distributions ◽  
Transient Thermal ◽  
3D Solid

A comparative study of three different aluminium alloys, Al2618, Al4032 and Al6061 made internal combustion engine pistons is done on their responses under mechanical and thermal loads using finite element methods. In this study, a 3D solid model of piston is created in CATIA and the simulations of the static structural analysis, steady-state thermal analysis and transient thermal analysis are carried out in ANSYS. Stress and temperature distributions on critical areas of piston are pointed out for appropriate modification in piston design. The temperature and heat flux variations with time are presented in transient thermal analysis. Taguchi method and topological optimization are applied to optimize the process parameters and to select the appropriate material for the piston.

A New Approach to Reconstructing 3D Solid from the Two 2D Views Based on AutoCAD

2011 ◽  
Vol 88-89 ◽  
pp. 697-702
Author(s):  
Hong Sheng Zhao ◽  
Ya Xian Wu ◽  
Yun Zhen Wu
Keyword(s):  
Research Work ◽  
Special Kind ◽  
Basic Knowledge ◽  
Solid Model ◽  
Engineering Drawing ◽  
Theoretical Possibility ◽  
New Approach ◽  
Simple Operation ◽  
High Efficient ◽  
3D Solid

This paper presents a new approach to reconstructing 3D solid model from the two given 2D orthographic views based on AutoCAD, which is much more effective and high efficient for a special kind of compound object than the currently existing ways. The approach emphasizes integrated operating of AutoCAD software and basic knowledge of engineering drawing with no needs for complicated computation and 3D rich imagination and reconstruction. Using this approach, the 3D solid model can be reconstructed effectively and efficiently from the two given 2D orthographic views by several steps of simple operation on computer on the basis of judgment. The research work provides a theoretical possibility for the automatic reconstruction of 3D Solid model of such compound objects, and a simple and practical 3D solid model-reconstructing method for engineers and learners of engineering drawing.

Numerical and Experimental Studies on the Development of Variable Density Nanocomposites for Structural Applications

2018 ◽  
Author(s):  
Jayaram R. Pothnis ◽  
Dinesh Kalyanasundaram ◽  
Suhasini Gururaja
Keyword(s):  
Numerical Model ◽  
Epoxy Resin ◽  
Electric Fields ◽  
Experimental Studies ◽  
Electrical Characterization ◽  
Variable Density ◽  
Transient Nature ◽  
Structural Applications ◽  
Measured Sample ◽  
Set Up

Numerical and experimental studies performed to develop nanocomposites with varying carbon nanotube (CNT) alignment density within an epoxy matrix are presented. A 3-D numerical model has been developed that looks at the behavior of CNTs in epoxy resin subjected to non-uniform electric fields by explicitly accounting for electric field coupled with fluid flow and particle motion considering the transient resin viscosity. The transient nature of resin viscosity has been incorporated into the simulation study with data related to resin viscosity variation with time and temperature generated experimentally. The response of CNTs due to the induced dielectrophoretic force was studied using the numerical model. The model facilitated the design of an optimal electrode configuration for the processing of variable density composites. A computer controlled Arduino UNO based circuitry was developed to control supply of voltage to the electrodes during sample fabrication. The circuit was then integrated with AC voltage supply units and the electrode set-up for fabricating the variable density composite samples. Low weight fractions of CNTs (0.05 wt.% and 0.1 wt.%) in epoxy resin were used for the experimental work and preliminary experimental studies were conducted. Electrical characterization results of the variable density nanocomposites indicate over 100% and 30% increase in electrical resistance measured across sample widths in 0.05 wt.% and 0.1 wt.% CNT samples, respectively. The measured sample resistance values confirmed that variation in CNT alignment density was achieved across the samples.

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