Proceedings of the International Symposium on Mechanical Engineering and Material Science

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85 articles

Characterization of Superplastic Behavior of AA2195 by Bulging Test

Ho-Sung Lee, Jong-Hoon Yoon, Joon-Tae Yoo, Kyung-Ju Min
Superplasticity is the ability of polycrystalline materials to deform plastically to exhibit very large strains. Using this property in manufacturing process makes many of aerospace components lighter and stiffer, with efficient energy and cost saving. Since in most sheet metal forming operation biaxial...

A Study on Microstructure of AA2219 Friction Stir Welded Joint

Ho-Sung Lee, Jong-Hoon Yoon, Joon-Tae Yoo, Kyung-Ju Min
Friction Stir Welding (FSW) is an environment friendly solid-state joining technology that uses a rotating tool to generate frictional heat and plastic deformation with mixing of the soft material by the pin along the welding line. The advantages are low distortion, lack of traditional defects commonly...

Study on joint formation evolution in laser microwelding of Pt-10%Ir and 316 LVM SS crossed wiresCrossed wire, Laser microwelding, Simulation, Joint formation

Jinrong Mao, Yongde Huang, Peng He
In order to identify the evolution of joint formation about crossed wires of Pt-10% Ir to 316 LVM SS in laser microwelding, the experimental and computational study was carried out. The results showed that, with the increase of peak power of laser microwelding, the laser joint evolution of the crossed-wires...

Study on Apoptosis of Human Hepatoma Cell line HepG-2 Induced by Total Alkaloids in H.littoralis

Ning Chen
The purpose of this study is to investigate the effect of Total Alkaloids in H.littoralis on the induction of apoptosis involved in Human Hepatoma Cell line HepG-2. HepG-2 cells were treated with different concentrations of Alkaloids in H.littoralis at different time. MTT method was used to study Alkaloids...

Effect of Surface Roughness on the Determination of the Creep Properties of Material by Using Three Points Bending Creep Test

Shifeng Wen, Sibo Zhou, Xianglei Liu
The purpose of this paper is to understand the effect of surface roughness of the specimen on obtaining the creep characteristics by using bending creep tests. To this aim, a numerical study has been performed on the creep damage development of the specimen by implementing the different surface roughness...

On the Determination of the Threshold Content of Fibrous Nanomodifier

Vladimir Alexeevich Smirnov, Engenij Valerjevich Korolev, Alexandr Viktorovich Evstigneev
Currently, numerous specific methods directed to the improvement of the building materials are developed. Many of such methods are intrinsically the implementations of the nanotechnology; the random reinforcement by nanoscale fibers is a well known way for the enhancement of operational properties. The...

Study on magnetic loss properties of ultra-thin nanocrystalline soft magnetic alloy Fe73.4Cu0.6Nb3.5Si13.5B9.0

KunMing Qian, Jie Hao, Song Ji, YanSong Zhang, Ang Ding, MingLi Li, JingHui Huang
The magnetic loss characteristics of ultra-thin nanocrystalline magnetic alloy Fe73.4Cu0.6Nb3.5Si13.5B9.0 with 14 m were studied, and compared with conventional nanocrystalline magnetic alloy strip with the thickness of the 26 m. It was found that reducing the thickness of alloy strip could significantly...

Synthesis of Polyethylenamine Cellulose and Its Absorbing Ability to Chromium (VI)

Rui Liu, Jiao-Qiang Zhang, Na Yi, Tie-zheng Ji, Ying Zhang
The study was conducted regarding the adsorption effect of Cr(VI) on polyethylenamine cellulose, the affecting factors on the adsorption of Cr(VI), such as pH value, adsorption time, polyethylenamine cellulose dose and initial concentration of Cr(VI) were investigated. The results showed that adsorption...

Investigations of continuous casting extrusion on the microstructures and properties of Zn-Al and Zn-Al-Ti alloys

Y L Li, L Z He
The microstructures and mechanical properties of Zn-Al and Zn-Al-Ti alloys wires prepared by continuous casting and extrusion (CASTEX) were studied in detail. The Al3Ti intermetallics in Zn-Al-Ti alloy distribute homogeneously at matrix of Zn-Al eutectics/eutectoid phase, and can effectively refine microstructure...

Preparation and Characterization of CA/GO Mixed Matrix Forward Osmosis Membranes

X.J. Wang, S.Q. Liu, S.F. Hou, P. Lu, K. Hou, Z.P. Wang, L.G. Wang
In this paper, a novel mixed matrix forward osmosis (FO) membrane was fabricated by introducing graphene oxide (GO) into the cellulose acetate (CA)-based casting solution using phase inversion methods. The factors---GO content and blending temperature were tested for their effects on pure water flux...

Effect of ultrasonic cavitation on the wetting and reaction of Al-Ti/C interface

Y.L. Li, L.Z. He, J.T. Zhao
Al-Ti-C alloy is a kind of fine refinement agent. However, the wetting of Al/C interface and TiC synthesis are the key technical problems to be solved in the preparation of Al-Ti-C grain refinement. In this paper, the acoustic cavitation effect was used to improve the wettability of Al-Ti/C interface,...

Welding Material Selection for a Specific Butt V-Weld by Means of Assisted Stress and Fatigue Calculations

Maria-Cristina Dijm rescu, Manuela-Roxana Dijm rescu
When talking about welding joints, an important issue is choosing the proper welding material in order to comply with design requirements, if possible, without undertaking physical tests. The present research focuses on an assisted approach for the selection of the proper welding material for a specific...

The influence of oxygen pressure on the crystallographic structure and magnetic properties of BaM films on Al2O3(0001) substrate

Hui Zheng, Mangui Han, Peng Zheng, Liang Zheng, Jiangxia Deng, Huibin Qin
In this work, hexagonal barium ferrite thin films have been deposited on Al2O3(0001) substrates by pulsed laser deposition. The influence of oxygen pressure on the crystallographic structure and magnetic properties of BaM films has been studied. X-ray diffraction theta-2theta reveals the films have a...

The Dynamic Scheduling of Spray Booth Machine in 4S Auto Maintenance Shop

Jinqi Li, Xiangyang Li, Qin Yang
Theory of constraint point out that the bottleneck is a major factor which restricts the system going toward the target. Therefore, the bottleneck is the key of scheduling process in entire system. In fact, due to the factors of long processing time, high cost and few amounts, spray booth machine become...

SMFF Computation for Probe of Online Magnetic Flux Leakage Detection System with combination of ANSYS and Virtual Work Method

Jin-zhong Chen, Yi-lai Ma, Ren-yang He
Numerical analysis of static magnetic field force for probe of online magnetic flux leakage detection system was conducted by combining ANSYS and Virtual work method. The result shows that combination of ANSYS and virtual work method could accurately calculate the static magnetic field force between...

Materials Forming of Dolphin Model for Hydrodynamic Research Based on the 3D Printing Technology

Heng Zhang, Jiajun Chen, Zhe Wu, Gucheng Zhu, Zhiguo Zhang
Traditional manufacturing techniques used for developing the models for hydrodynamic research are slow and costly. Based on the development of current technology, 3D printing technology could be the fastest way to generate the model for with high accuracy for experimental test. With the help of 3D printing...

An Optimal Selection Method for Product Conceptual Design and Materials Evaluation Based on Quality Function Deployment and Grey Relational Projection

Kailiang Zhu, Xiao Wang, Yufeng Zhang, Rui Mu, Shupeng Wang
Quality Function Deployment (QFD) is widely used in optimizing schemes (e.g., product designs and materials evaluation). However, the traditional QFD focuses only on the demands of quality and measures to assure the quality. Furthermore, the general methods to evaluate the weight of factors used in QFD...

Advance on Al2O3 Particulates Reinforced Aluminum Metal Matrix Composites (Al-MMCs) Manufactured by the Power Metallurgy Techniques- Microstructure and Properties

Lina Xu, Xuetao Yue, Fengqing Zhang, Qingbo Tian
Aluminum metal matrix composites (Al-MMCs) with Al2O3 particulates as reinforcement fabricated by the power metallurgy (PM) techniques have gained much attention due to their unique characteristics, which combine the roles of the process method, Al2O3 particles and aluminum matrix. The contents and sizes,...

Fiber Optic Sensors Materials based Spontaneous Combustion Detection in Goaf Areas

Enji Sun
The main objective of this paper is to provide a possible monitoring system, which includes multiple sensors such as fiber optic temperature sensor, gas sensor and differential absorptive methane optic fiber sensor. Optic fiber sensors offer a number of unique advantages for safety monitoring in explosive...

Investigation of Speckle Image Correction Technique Based on Coding Assistance

Zhijing Yu, Zhen Hua, Fan Yan, Shuo Wang, Wei Wang, Jun Wu
The effect of image correction on digital speckle correlation method (DSCM) is researched. And the error caused by differences in attitude is analyzed. Then the theoretical model of image correction based on coding assistance is established. According to the model, computer simulation is conducted. The...

Research on the material and structure to the intelligent clutch control system

Cun Xiang Liu, Xue Jun Liu, Tu Gan Lin
With the continuous expansion of the road network, the construction growth rate of car ownership is also increasing. Although automatic transmission car owners increase rapidly, manual transmission cars are still the main car in the middle and low level car market. However, due to traffic congestion...

Individual Weight Estimation of Cynoglossus-gracilis Based on Measurement of Irregular Image Area

Guoqiang Ma, Yunchen Tian, Xiaolan Lin
For aquaculture, the classification of live fish and the deconcentrition of fish into more ponds are very important process. Non-contact and no-harm are always the target of this process. Using the technology of digital image processing, the binary irregular image of Cynoglossus Gracilis is got and measurement;...

Correction of axis tilt error for 40Cr ring gear measurement based on collinear measuring heads

Chengzhi Su, Fangchao Shao, Biao Zhou, Chun Yan, Lei Zhong
The ring gear and flywheel are interference fit. In order to verify whether magnitude of interference meets the processing requirements, the size change of the 40Cr ring gear before and after heating is measured. Measurement accuracy of ring gear measurement equipment should reach 0.01mm. Due to the...

An Empirical Study on the Coordinated Development of the Service Industry and the Innovation of Science and Technology

Ling Li, Feng Feng, Wei Zhang
The purpose of this paper is to make empirical research on the coordination between the service industry and science and technology innovation, and constructed theirs synergy degree measurement model, then made empirical analysis on the coordination using the data of China's service industry and the...

Design and Topology Optimization of Collimation Frame for Two-Dimensional Turntable

Yongqiang Zhang, Zhaohui Liu, Zhiguo Li
Space two-dimensional turntable is the main load-bearing structure of space photoelectric detection equipment, and collimation frame is the key support component of turntable, so its stiffness characteristics are vital for the performance of turntable. Therefore, the structure of collimation frame was...

An Improved DCT Based Color Image Watermarking Scheme

Xiangguang Xiong
In this paper, an improved blind color image watermarking algorithm based on relationship embedding strategy is proposed. Firstly, the original RGB color image is transformed into YCbCr color space. Secondly, the Y channel of YCbCr color space is divided blocks sized 8ž8, and then perform two dimensional...

Research on the Precision Measuring System of Steel Bearing Aperture Based on Machine Vision

Xiao-jie Liu, Tian-hu Wang, Man-li Wang
A new measurement system was designed in order to improve the accuracy of the non-contact type high-precision measurement of Steel bearing aperture. Firstly, the median filter preprocessing algorithm was designed to remove the impulse and salt-pepper noise in the image, and the edge details of the image...

Implementing Computer Aided Material Design of Multiple Cursors for Disabled People with InLinPreRa

Ching-Tien Shih, Shu-Chen Hsu
Through adjusting the curriculum, comprehensive learning environment design, and information technology aids to effectively integrate disabled students with learning, in order to assist them to control environment or communicate with people, and to improve their ability of independent living. Orange...

Lime composition for the walls of buildings made of aerated concrete

V.I. Loganina, M.V. Frolov, Yu.P. Skachkov
It is proposed to use for finishing the aerated concrete composition with limy binder. Composition includes limy binder, ground aerated concrete and additives based on a mixture of silicate and calcium aluminum silicates. It has been shown, that the introduction in lime composition ground aerated concrete...

Effective profiles for building constructions

Nezdanov Kirill, Laskov Nikolay, Garkin Igor
Describes a new more efficient double-tee rolling bar comprising a wall and two flanges and having invariable sectional area equal to the cross section of standard profile, wherein each of the shelves is conjugate with the wall by a pair of circular triangles, with the radius of each of them is where...

Influence of initial hydration conditions of cement on the process and fracture parameters of hardened cement paste structure of different age

N.I. Makridin, I.N. Maksimova, J.V. Polubarova
The experimentally obtained kinetic dependencies of the influence of super plasticizer on the fracture process and structural quality parameters of the compared series of the hardened cement paste samples are shown. Its analysis shows that modification of cement stone structure by superplastiticizer...

New Composite Cement for Construction 3D Printers

Vladimir Ivanovich Kalashnikov, Elena Aleksandrovna Belyakova, Roman Nikolaevich Moskvin
A composite binder based on a mixture of fine fly ash with standard cement grade CEM I 42,5 was developedÿin accordance with the requirements of the concrete mixtures for molding products using of construction 3D printers. The influence of the ratio between ash and cement on the strength characteristics...

The Influence of Plasticizerson the Composition of Cement Stone Hydration Products

Oleg Vyacheslavovich Tarakanov, Elena Aleksandrovna Belyakova, Vladimir Ivanovich Kalashnikov, Olga Vasilyevna Grintsova, Nikolai Ivanovich Makridin
The influence of polycarboxylate superplasticizerson composition changes of silicate and aluminate cement phases is analyzed. The retarding effect of organic additives on silicate phases hydration and stabilizing effect of additives on calcium metastable hydroaluminates and ettringite isestablished

Punching Shear Strength Model for RC Slab-Column Connection Based on Multiaxial Strength Theory of Concrete

H.Y. Pang, Z.J. Wang, C.T. Huang, S. Pu
A strength model was presented to give the mechanical explanation of the punching phenomenon, and to predict the punching shear strength of the interior reinforced concrete (RC) slab-column connection without shear reinforcement. The model assumes that the punching shear force is resisted mainly by the...

Hybrid TLBO and BFGS for structural health monitoring optimisation problems

Nantiwat Pholdee, Sujin Bureerat
This paper proposes hybrid teaching learning based optimisation (TLBO) and the Broyden-Fletcher-Goldfarb-Shanno algorithm (BFGS) for solving structural health monitoring optimisation problems. Two structural damage detection problems from two different truss structures are used to examine the search...

System Reliability Analysis of Half-through Concrete-filled Steel Tubular Arch Bridge Based on Optimization Technique

Lv Jing
The object of this paper analyzes the reliability of half-through concrete-filled steel tubular arch bridges. Load and resistance parameters are treated as random variables. The statistical parameters are based on the available literature, test data and survey results. Reliability indices of main components...

Reliability analysis of aerostatic instability of suspension bridge under stochastic wind loading on Bayesian theory

Huasheng Wang
Based on the structural reliability theory, the extreme wind speed forecast method was used to establish the reliability model for analyzing aerostatic instability of long-span suspension bridge. The limit state equation of reliability analysis model is a function of conversion factor, critical wind...

Estimation of the thermal loads on buildings with CAD systems support

Alexis Cordov,s Garc¡a, Gerardo M. Ramos Gordon, Jorge A. Mora Aguilar, Arlys M. Lastre Aleaga
The goal of this paper is the design and implementation of an algorithm for estimating thermal loads in a civil construction, in which the capture geometric information of the architectural plan of a building created in a CAD system (Computer Aided Design), and the calculation of thermal loads in the...

Method and Software for Modeling the Building Materials as Dispersions

Vladimir Alexeevich Smirnov, Evgenij Valerjevich Korolev, Alexandr Viktorovich Evstigneev, Olga Igorevna Poddaeva
Particle system dynamics is the well known method that can be used in wide range of spatial scales - from molecular to astronomic. However, numerical experimentation with constructional composites requires adequate representation of peculiar forces that are due to solvation shells, steric conditions...

Advances in Study on Structure of Polysaccharide

Miao Yu, Yue Cao, Guosong Xin, Chenfeng Ji, Shiyong Gao, Xiang Zou, Zheng Qi
Polysaccharide has many biological functions, such as anti-tumor, anti-virus and so on. The function of polysaccharide is closely related to its structure. The structure of polysaccharides can be classified into primary structure and advanced structure. There are many methods for the analysis of polysaccharide...

Light Weight Medium (Pottery Spherical) Cultivation of Plants Used in Green Roof Feasibility Studies

Chiou-Chuan Chen, Yi-Hong Pengb, Chun-Lin Chen, Chiou-Chuan Lee
We tested 8 plants and 3 medium and tested pottery spherical base, thus achieving the results.The green coverage for light media S2 (pottery spherical to sandy loam is 8:2) is suitable for Alpinia speciosa the best growth, followed is Zoysia matrella, with Duranta repens as the third. The green coverage...

Finite Element Analysis and Optimization Design of Combined Vehicle Suspension Girder Lateral Stabilizer Bar Bushing

Yinan Zhu, Daoshuang Ceng, Nawen Lin
The stabilizer bar bushing as one of the most important parts of the automobile shock absorber, because of its complex structure using the rubber, and the rubber has nonlinearity and incompressibility, therefore using traditional numerical analysis method optimization calculation is very difficult. With...

Vibration Detect and Analysis on a Large-scale Coal Screening Factory Building

Daode Qiu, Chao Shen
It puts forward a method of dynamic detection, through studying on the problem of resonance between structure and machine about a large-scale coal screening factory building. The detection result shows that partial flats of this multilayer factory building have reflected a resonance phenomenon between...

The research on the response of the structure and the load of gantry cranes cylindrical structures based on strain-measuring method

Aihua Jiang, Xianyuan Deng, Zhongliang Guo, Shan He
In this paper, a shipbuilding gantry crane serviced for up to 18 years is studied; the strain-measuring method is used for testing and analyzing the response of the structure and the load about the main force component-cylindrical structural. By arranging the measuring point 90 ø to each other on the...

Effect of Turntable Structure on Electromechanical Characteristics of Laser Tracker System

Erfang Cao, Wenji She, Liang Zhou
Laser tracker is composed of a mechanical structure and a servo control system. And the characteristics of them all affect the error and stability of the laser tracker measurement system. The cut-off frequency and the response speed are important index to characterize the system performance. Among them,...

Analysis of Natural Frequency Sensitivity of Truck Body

Xue Liu, Qing Shao, Tao Xu, Guikai Guo
Sensitivity is extremely important in computer aided material and structural design. The present paper focuses on the sensitivity with respect to the design variables of truck body. This paper proposes a solution procedure of truck body for natural frequency sensitivity calculation in vibration analysis...

Research of Portal Crane Vibration Modal Analysis

Xianyuan Deng, Zhongliang Guo, Aihua Jiang, Shan He
Portal crane is an important port production machinery what frequently work in moist environment leads to greater structural damage. The weight of the metal structure is usually 60% to 90% of the whole weight. Steel Q235B material in the early is widely used in the portal crane design and manufacture....

Coastline Identification from Remote-sensing Image Using Informative Vector Machine Learning

Guoshao Su, Xiaochun Hu, Liubin Yan, Yanming Liu
For a more rapid and accurate coastline identification method, this paper presents a method of coastline identification on remote-sensing image using Informative Vector Machine and then the coastline of Beihai Silver Beach in Guangxi has been identified. The results show that method of coastline identification...

"San Cai" Human Factors Analysis Model of Civil Aviation Maintenance

Xiaojin Han, Linlin Wang
Two famous civil aviation accident Human Factors analysis models SHELL model and Reason model were introduced in this article. The advantages and disadvantages of the models were both discussed. After that, a new Human Factors analysis model of civil aviation maintenance was proposed, which is named...

Research on the determination method of the intermittent grounding faults of shipboard medium voltage power system

Ya-wei Song, Bing Shen, Liang Chen
In order to ensure shipboard medium voltage power system work successfully. In this paper, the existence of intermittent grounding fault of the shipboard power system is analyzed and studied. Meanwhile, A simulation model of shipboard medium voltage power system with multiple branches is built on MATLAB/SIMULINK,...