Optimization Design Method for Body Frame of Vehicular Glass Edge Grinding Machine Based on Goal-Driven Optimization

2013 ◽  
Vol 345 ◽  
pp. 561-565 ◽  
Author(s):  
Jian Hu ◽  
Zhan Jin Wang ◽  
Bin Duan ◽  
Gang Yan Li
Keyword(s):  
Cantilever Beam ◽  
Optimization Design ◽  
The Body ◽  
Grinding Wheel ◽  
Body Frame ◽  
Wheel Load ◽  
Cross Sectional ◽  
Maximum Deformation ◽  
Cross Sectional Size ◽  
Maximum Body

In the application of the Vehicular Glass Grinding Edge Machine (VGGEM), in order to enhance the body frame rigidity, it is necessary to reduce the maximum body frame deformation by optimizing the body frame cantilever beam cross-sectional size. Considering to this point, a CAD model of the VGGEM is built by using Pro/E, then, further be divided into a simplified grid model by using ANSYS WorkBench. Based on goal-driven optimization method, the grinding wheel load is worked out by using the maximum body frame deformation, and the optimum body frame cantilever beam cross-sectional size is figured out by using the stress distribution of the grinding wheel and the maximum deformation constraints. After the performance analysis of the optimized designed body frame of VGGEM, its rigidity and strength are proved.

Study on the Optimal Design of the Members of Contaniner Building with Building Materials I: Side Board Optimization

2013 ◽  
Vol 859 ◽  
pp. 270-273 ◽  
Author(s):  
Xiao Xiong Zha ◽  
Yang Zuo ◽  
Shi Yun Chen
Keyword(s):  
Software Package ◽  
Design Theory ◽  
Optimization Design ◽  
Building Materials ◽  
Steel Structure ◽  
Building Construction ◽  
Cross Sectional ◽  
Design Variables ◽  
Cross Sectional Dimension ◽  
Cross Sectional Size

Container, as a light steel structure, being increasingly used in building construction, containers used in construction has many advantages and applications. However, the current study mostly from the view of the architecture, as for the mechanical properties of the container building has not mentioned, that brings obstacles of the application and development of the container building. Based on the software package of HyperWorks and optimization design theory, the cross-sectional size of container building is taken as design variables, and then selected objective function and constraint functions. Finally, calculated by software, get the optimal cross-sectional dimension.

Model and Finite Element Analysis of a Bus Body

2012 ◽  
Vol 605-607 ◽  
pp. 596-599
Author(s):  
Feng Wang ◽  
Qin Man Fan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
The Body ◽  
Body Frame ◽  
Element Analysis ◽  
Maximum Deformation ◽  
Emergency Braking ◽  
Computing Platform ◽  
Bus Body ◽  
Stress And Deformation

ANSYS is used as the finite element computing platform to analysis a certain type of bus body frame under four load conditions of bending conditions, reversing conditions, the bending and torsion conditions and the emergency braking conditions. The constraints and load approach in the four conditions are given in this paper. A certain type of bus body skeleton program and the finite element analysis are conduct. The result shows that: (1) Bus body frame changing brings the re-distribution of the stress, making the overall stress and deformation of the body skeleton relatively uniform. (2) The improved program makes more than 250KG weight losing of the body frame and the changing location of the maximum deformation under the bending conditions. The maximum bending deform increased is only 8.92%.

Finite Element Modeling and Analysis for a Certain Urban Bus Frame

2013 ◽  
Vol 433-435 ◽  
pp. 2239-2245
Author(s):  
Ya Hui Li ◽  
Wei Dong Luo ◽  
Rui Zhou
Keyword(s):  
Finite Element ◽  
Element Model ◽  
The Body ◽  
Body Frame ◽  
Cross Sectional ◽  
Modeling And Analysis ◽  
Calculation Results ◽  
Bus Body ◽  
Urban Bus ◽  
Set Up

Using CATIA set up a 3d model of urban bus frame in this paper, And ANSYS13.0 is used to establish the body frame finite element model of the certain urban bus body frame, Based on this model, the static characteristics under various conditions were analyzed, and the features of stress and strain distribution are gotten. Through the analysis of calculation results, we can conclude that this body frame around the column to the rear windscreen beam junction strength in insufficient, need to increase cross-sectional area of the left column; The floor behind driver seats strength is not enough, need to add two beams to strengthen the support. And the calculation result shows that the rest of the frame has a certain extent optimization space, and can provide the basis for the next step of lightweight.

Optimization Design of a Bus Body Frame

2012 ◽  
Vol 605-607 ◽  
pp. 600-603
Author(s):  
Feng Wang ◽  
Yong Hai Wu
Keyword(s):  
Optimization Design ◽  
Reference Value ◽  
Parametric Modeling ◽  
Operating Conditions ◽  
The Body ◽  
Body Structure ◽  
Total Quality ◽  
Body Frame ◽  
Nsga Ii ◽  
Bus Body

This paper selects a certain type of Golden Dragon bus body structure as the research object, by using ANSYS parametric modeling, and achieve optimization process through the ISIGHT software integration ANSYS. Choose the body frame minimum total quality as optimal objective; the average stress level is introduced to the objective function when the body frame is under the bending and twisting joint working conditions. According to the bus operating conditions, restrictions including strength, stiffness, and frequency of the body frame are put forward .NSGA-II algorithm is employed to optimize the design. The results showed that: 8.08% total mass reduction of Bus Body Structure. The NSGA-II method combined with finite element method this article uses has a certain reference value on the similar structure optimization design.

Bi-Level Optimization for Cross-Sectional Size of Bus Body

2013 ◽  
Vol 437 ◽  
pp. 434-438 ◽  
Author(s):  
Jing Xin Na ◽  
Jian Feng Gao
Keyword(s):  
Line Search ◽  
Lightweight Design ◽  
Optimization Method ◽  
The Body ◽  
Design Stage ◽  
Concept Design ◽  
Body Frame ◽  
Cross Sectional ◽  
Multi Objective ◽  
Bus Body

A bi-level optimization method, integrating both local line search and overall multi-objective optimization, is proposed aiming to provide a solution for lightweight design of integral bus bodies. On the first level, the lightest structure under the strength condition is obtained via implementing line-search process in local bar models of the body frame based on the section libraries. On the second level, the design variables are screened by means of sensitivity analysis, and then the bus body structure is optimized by using the multi-objective genetic algorithm. This approach is implemented into an integral bus body frame during the concept design stage. It is verified that the obtained structure scheme is 10.57% lighter than the target bus model and the major mechanical performances are also better than the target one.

Study on the Optimal Design of the Members of Contaniner Building with Building Materials II: Joint and Corner Column Optimization

2013 ◽  
Vol 859 ◽  
pp. 266-269 ◽  
Author(s):  
Xiao Xiong Zha ◽  
Yang Zuo ◽  
Shi Yun Chen
Keyword(s):  
Optimal Design ◽  
Software Package ◽  
Optimization Design ◽  
Building Materials ◽  
Element Analysis ◽  
Cross Sectional ◽  
Design Variables ◽  
The Finite Element Analysis ◽  
Cross Sectional Size ◽  
Strength And Stiffness

Containers are widely used for building, in order to promote the use of container building, it is necessary to do the research on optimal design. The corresponding optimal design has been achieved through the software package of HyperWorks, the lightest total weight is taken as the objective function, and the strength and stiffness are taken as the constraint conditions. Based on the finite element analysis of the joint and corner column, the cross-sectional size is taken as design variables, and then the optimization design of joint and corner column of container building is made.

X-ray micro tomography in the scanning electron microscope

1978 ◽  
Vol 36 (1) ◽  
pp. 106-107 ◽  
Author(s):  
W. Brünger
Keyword(s):  
Electron Beam ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Target Surface ◽  
The Body ◽  
X Rays ◽  
Cross Sectional ◽  
X Ray ◽  
Micro Tomography ◽  
Scanning Electron

Reconstructive tomography is a new technique in diagnostic radiology for imaging cross-sectional planes of the human body /1/. A collimated beam of X-rays is scanned through a thin slice of the body and the transmitted intensity is recorded by a detector giving a linear shadow graph or projection (see fig. 1). Many of these projections at different angles are used to reconstruct the body-layer, usually with the aid of a computer. The picture element size of present tomographic scanners is approximately 1.1 mm2.Micro tomography can be realized using the very fine X-ray source generated by the focused electron beam of a scanning electron microscope (see fig. 2). The translation of the X-ray source is done by a line scan of the electron beam on a polished target surface /2/. Projections at different angles are produced by rotating the object.During the registration of a single scan the electron beam is deflected in one direction only, while both deflections are operating in the display tube.

Gender determination of caucasoid hair using image analysis

1993 ◽  
Vol 51 ◽  
pp. 216-217
Author(s):  
T.B. Ball ◽  
W.M. Hess
Keyword(s):  
Image Analysis ◽  
Cross Sections ◽  
Scalp Hair ◽  
The Body ◽  
Equivalent Diameter ◽  
Cross Sectional ◽  
Hair Samples ◽  
Length Width ◽  
Morphological Differences

It has been demonstrated that cross sections of bundles of hair can be effectively studied using image analysis. These studies can help to elucidate morphological differences of hair from one region of the body to another. The purpose of the present investigation was to use image analysis to determine whether morphological differences could be demonstrated between male and female human Caucasian terminal scalp hair.Hair samples were taken from the back of the head from 18 caucasoid males and 13 caucasoid females (Figs. 1-2). Bundles of 50 hairs were processed for cross-sectional examination and then analyzed using Prism Image Analysis software on a Macintosh llci computer. Twenty morphological parameters of size and shape were evaluated for each hair cross-section. The size parameters evaluated were area, convex area, perimeter, convex perimeter, length, breadth, fiber length, width, equivalent diameter, and inscribed radius. The shape parameters considered were formfactor, roundness, convexity, solidity, compactness, aspect ratio, elongation, curl, and fractal dimension.

PEMBELAJARAN SIMULASI PENCITRAAN CT DENGAN MENGGUNAKAN PRINSIP REKONSTRUKSI CITRA DALAM SOFTWARE MATLAB

2015 ◽  
Vol 8 (3) ◽  
pp. 161
Author(s):  
Samuel Gideon
Keyword(s):  
Image Reconstruction ◽  
Ct Imaging ◽  
The Body ◽  
Reconstruction Technique ◽  
Imaging Features ◽  
Back Projection ◽  
Cross Sectional ◽  
Low Contrast ◽  
Image Reconstruction Technique ◽  
Imaging Algorithms

This research was conducted as a learning alternatives for study of CT (computed tomograpghy) imaging using image reconstruction technique which are inversion matrix, back projection and filtered back projection. CT imaging can produce images of objects that do not overlap. Objects more easily distinguishable although given the relatively low contrast. The image is generated on CT imaging is the result of reconstruction of the original object. Matlab allows us to create and write imaging algorithms easily, easy to undersand and gives applied and exciting other imaging features. In this study, an example cross-sectional image recon-struction performed on the body of prostate tumors using. With these methods, medical prac-titioner (such as oncology clinician, radiographer and medical physicist) allows to simulate the reconstruction of CT images which almost resembles the actual CT visualization techniques.Keywords : computed tomography (CT), image reconstruction, Matlab

Kajian Kandungan Fe dalam Air Tanah Terhadap Kadar Ekskresi Yodium dalam Urin pada Anak Sekolah di Desa Cerme Kecamatan Panjatan Kabupaten Kulon Progo

2017 ◽  
Vol 19 (1) ◽  
pp. 7-11
Author(s):  
Vivi Linda Fristianti ◽  
Nur Hidayat ◽  
Slamet Iskandar
Keyword(s):  
Elementary School ◽  
Ground Water ◽  
School Children ◽  
Laboratory Data ◽  
Simple Random Sampling ◽  
Optimal Level ◽  
The Body ◽  
Design Data ◽  
Cross Sectional ◽  
Fe Content

Background : IDD problem is a serious problem, 33% of districts in Indonesia are endemic, 21% of endemic mild, moderate endemic 5% and 7% by weight endemic. Urine Iodine Excretion (EYU) illustrates the iodine intake of a person, because 90% of the iodine that enter the body are excreted through the urine. Blocking agents are substances certain minerals such as iron, manganese and calcium, which can bind iodine in groundwater. Objectives : This study aims to determine the relationship of Fe content in ground water sources against EYU levels in school children in the village of the District Cerme Panjatan Kulon Progo. Methods : An observational analytic research with cross sectional design. Data collection is done in May - June 2015. Location research Elementary School Cerme, District Panjatan Kulon Progo. The subjects of the study as many as 34 children in elementary school classroom Cerme 3, 4 and 5 were taken by simple random sampling. Well water and urine samples taken students then tested the iron in the Central Health Laboratory test Yogyakarta and iodine in urine in Magelang BP2GAKY Laboratory. Data analysis using Spearman Range test with significancy level : 0.05. Result : Fe content in the ground water is below the normal threshold is <0.3 mg / L. While levels EYU school children who are under the optimal level of 5.9%, the optimal level of 32.4%, and the optimum levels above 61.8% (optimal: 100 - 199μg / L). Conclusion : There was no significant relationship between the Fe content in groundwater with levels of EYU in school children in District Panjatan Kulon Progo (p = 0.447).   Keywords: Fe, EYU

Sign in / Sign up

Export Citation Format

Share Document