Proceedings of the 2015 International Conference on Modeling, Simulation and Applied Mathematics

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92 articles

Time-varying Stiffness Characteristics of Shaft with Slant Crack

Hengheng Xia, Zhinong Li, Yaoxian Xiao
The stiffness matrix of a shaft with slant transverse crack under the common action of axial force, moment and torque was derived based on material mechanics, local flexibility and fracture mechanics theory and apply strain energy release rate method. The opening and closing regularity of the crack and...

Numerical Simulation 3D of Local Scour around Subsea Caisson Structures in Steady Currents and Waves

Xuyen Hoang
This paper studied the local scour processes at subsea structures using using the computational fluid dynamics codes (OPENSOURCE CODE). The model solved the fully three-dimensional, Reynolds-averaged Navier–Stokes equation closed with the LES model. Stokes and Cnoidal Waves were generated using Fenton’s...

Effects of Current Pacing and Electrical Field on The Turbulence Induced by Voltage Oscillations in Hearts

Hong Zhang, Ruijuan Li, Dan Zhao, Yuan Liu
To the turbulence induced by local voltage oscillations during repolarizing phase of the cardiac action potential, the effects of current pacing and electrical field were investigated to reveal their feasibilities in elimination of the turbulence. A local pathological 2-dimensional tissue including 401...

Mobility Force Model for Microscopic Simulation of Motorcycle Traffic Behavior

Tienpen Hsu, Yuchen Chen
This paper presents the conceptual structure of a novel microscopic traffic flow behavior simulation model for motorcycle traffic based on a mobility force structure, called mobility force car-following model. The mobility force is defined as the interactive force of motorcycle by surrounding vehicles...

The Integrated Autonomous Underwater Navigation System based on Open Platform for Robotic Services

Youngho Choi, Jungwoo Lee, Jinho Suh, Jongdeuk Lee
This paper introduces how to easily integrate the modular navigation system for the autonomous underwater vehicle (AUV), which consists of the various hardware and software modules. This paper is focused on how to build the integrated underwater navigation module which is applicable to various types...

A Multi-scale Parallel Numerical Solver for Modeling of Two-phase Viscoelastic Fluids Based on the OpenFOAM

Xiaowei Guo, Yu Cao, Miao Wang, Qian Wang
With the rapid development of high performance computing technology, the simulation of viscoelastic fluids has become an extremely important research area and numerous new promising techniques have been proposed over the last decades. In this paper we proposed a numerical algorithm for solving the multi-scale...

Application of Multiple-Scale Analysis In Eco-hydrodynamic Simulation-Combination and comparison between different mathematic models

Xiwen Zhang, Runpeng Zhang, Yu Qiao, Junhui Gao
In the simulation of ecological formation process, as the complexity of the environment increases, only one model is usually not enough to correctly predict the change. In this program, we introduced another way--- the multi-scale analysis to simulate the formation process by combining two models together....

Modelling of Stagnation-Point Flow and Diffusion of Chemically Reactive Species Past A Permeable Quadratically Stretching/Shrinking Sheet

Roslinda Nazar, Norihan Md Arifin, Ezad Hafidz Hafidzuddin, Ioan Pop
A numerical study has been conducted to investigate the modelling of steady two-dimensional stagnation-point flow and diffusion of chemically reactive species of a viscous and incompressible fluid past a permeable quadratically stretching/ shrinking sheet. Similarity transformation has been used to reduce...

Quantitative Relationship between Readiness and Availability of Weapon System and Its Application

Jianwei Lv, Zongren Xie, Yifan Xu
The definition and calculation of the operational readiness and availability of weapon system have been described. The relationship and difference between them have been analyzed. On the assumption that the repair time, logistic delay time and the relaxation time are subject to different distributions,...

Vision Calibration of Mobile Robot

Mingqin Liu, Xiaoguang Zhang, Guiyun Xu
In consideration of robot’s bumpy moving condition, a camera height dynamic compensation algorithm which based on characteristics of parallel lines was raised up, this camera height dynamic compensation algorithm is based on inherent characteristics that two parallel lines parallel to each other to conduct...

An Approximate Semantic Model of Hybrid Systems

Shihan Yang, Houwen Liu, Qiong Yu, Jinzhao Wu
Hybrid system is a dynamic system. However, it is difficult to formally analyze hybrid systems due to the continuous parts. In this paper, we propose an approximate semantic model of hybrid systems, in order to employ formal analyzing techniques; furthermore, the error could be under control. This method...

Build Prediction Models for Gold Prices Based on Back-Propagation Neural Network

Chingpei Lin
In recent years, international gold prices have been constantly rising, gold investment and preserve (or even appreciation) effects have been widely concerned by the market. Whether it is based on speculation, investment or hedging purposes, the gold has been incorporated into the asset allocation by...

An Improved Passivity-Based Control to Buck Dc-Dc Converter

Yanhua Xian, Xiaoshu Luo
For the nonlinear characteristic of buck dc-dc converter and high demand of dynamic quality and robustness for the converter, a passivity-based control with an adjustable parameter for buck converter is proposed. Based on the nonlinear error model of buck converter, a feedback equivalence system is obtained...

An Application of the Direct Method of Liapunov in Stability Analysis of Semilinear Systems

Igor Dobovšek
An application of the direct method of Liapunov for establishing stability criteria of smooth solutions for a certain class of initial boundary value problems described by a system of semi-linear hyperbolic partial differential equations is discussed. The concept of Liapunov-like functional is utilized...

Research on Braking Force Distribution Strategy of Composite Braking System of Electric Vehicle

Kuiyang Wang, Liang Zhu, Shanfeng Wang
Based on analyzing the necessity of research on composite braking system of electric vehicle and its braking force distribution strategy, according to the ECE regulations and the requirements of braking stability, the optimized braking force distribution strategy and control logic are proposed for a...

Finite Element Analysis on Rubber Sealing Ring of the Rotary Liner Hanger Bearing

Weiqing Li, Yu Wang, Detian Miao
Rotary liner hanger bearing will be wear sharply and decreased its service life if the sealing structure is not able to prevent the drilling fluid to enter into the bearing. A two-dimensional finite element model of the self-designed non-standard rubber sealing ring was carried out on the software of...

The Role of Government Climate Policy in an Oil Price Shock: A CGE Simulation Analysis

Saeed Solaymani, Nora Yusma Bte Mohamed Yusof, Arash Yavari
Malaysia has made a pledge to reduce its 2005 GDP emission intensity levels by up to 40% by 2020 as its contribution to combat climate change. One of the proposed policies to achieve this goal is carbon taxation. We used a computable general equilibrium model to analyse the results of three scenarios...

Key Nodes Analysis of Microblogging Public Opinion Spread about Public Emergencies-Such as the Missed Malaysia Flight MH370

Cuiyou Yao, Guimin He
Microblog plays a very important role in the process of public opinion dissemination after the occurrence of public emergencies. As a Micro blogging platform based on user information sharing, dissemination and access, it is suitable for using social network analysis method to analyze because of forming...

Medical Equipment Logistics Capability Evaluation of third-party Logistics Service Providers

Zijuan Zhang, Xianliang Shi
Medical equipment third-party logistics service has positive significance to standardized, intensive management for storage and transportation processes, evaluation of logistics capability is the first premise for product manufacturer or operator to select providers. According to the characteristics...

The Study of GRNN for Wind Speed Forecasting Based on Markov Chain

Shujie Gao, Jianyan Tian, Fang Wang, Yang Bai, Shengqiang Yang, Wei Gao
In view of modeling accuracy problems of General Regression Neural Network (GRNN), the improved GRNN has been used to forecast wind speed. Firstly, K-fold cross validation was used to select smooth parameter of GRNN, and the influence of K value was analyzed. Then, Markov Chain (MC) was introduced to...

Real-Time Fault Simulation of Mechanic-Electronic-Hydraulic System Based on Virtual Prototyping

Deyu He, Niaoqing Hu, Lei Hu, Ling Chen
Lack of historical fault data in real-time working condition is a pivotal problem in safety analysis of large-scale mechanic-electronic-hydraulic systems. To deal with this problem, this paper proposed a real-time fault injection and simulation method based on virtual prototyping. First, the virtual...

Research on Atmospheric Density Online Measurement Technology Based on Spacecraft Platform

Chaojie Wang, Xiao Li, Lai’an Qin, Chunlei Li, Tao Yan
It is necessary to implement online measurement of atmospheric density around spacecraft in order to better design aerodynamic appearance of hypersonic spacecraft and meet the demand of pneumatic identification. This is one of important problems that should be solved in domestic spacecraft design field...

Providing Support for Today’s Decision Making Processes-Decision making

Sylvia Encheva
Current decision making processes often involve uncertain information obtained from a number of sources. In addition the available data might be incomplete and/or collected at different time periods, i.e. its significance may require adjustments. In many cases experiments cannot be repeated and conclusions...

Research on Domestic Bank Customer Satisfaction Based on Logistic Regression Analysis

Chengming Chang
As modern people have higher expectations for banking services and hope to get perfect services, the banking service satisfaction is more and more important, and competition among banks grows with each passing day. Therefore, I studied service satisfaction rating among banks so as to improve the relationship...

FDTD Simulation of a Mobile Phone Operating Near Metals

Nuttaka Homsup, Terapass Jariyanorawiss
This paper presents Finite Difference Time Domain (FDTD) simulation results of operating mobile phone near metal wall sheet and near a one metal cell. Results show that placing a one metal cell closed to a mobile phone is more harmful to human health than a metal wall sheet. The one metal cell is the...

Numerical Simulation of Solid-Liquid Two-Phase Flow and Wear Characteristics in Rotary Liner Hanger Bearing

Weiqing Li, Ying Wang
The sand of drilling flow that enters into rotary liner hanger bearing will wear the bearing, which will reduce its service life seriously. Applying the fluid software, this paper simulated the wear characteristic of fluid domain inside the bearing. Based on the Finnie wear model, this paper analyzed...

Computational Modeling of Planar Light-Emitting Diode with Mesh-Like Electrode

Yohei Nishidate, Irina Khmyrova, Julia Kholopova, Evgeny Polushkin, Valery Zemlyakov, Sergei Shapoval
Numerical procedure is developed for modeling of a planar light-emitting diode (LED) with top metal electrode patterned like a mesh with square cross sectional strips. The procedure is applied for modeling LED output performance at different parameters of the mesh-like electrode. Our numerical analysis...

The linear Programming Model of Vegetables Transport Scheme Design

Tian’e Wang, Baocheng Wan, Cong Xiao, Yicheng Feng
Due to many factors, vegetable transportation scheme decision is more complicated, thus we put forward a reasonable and practical meaningful vegetables transport model that has considerable practical significance. Based on the rationality and feasibility of transportation scheme, and the limitation of...

Strategic Game Approach in Multistage Simulation for Supply Chain Planning

Yenming J. Chen
This study employs strategic game approach along with multistage simulation to find a supply chain plan in an equilibrium state, in which the configuration design stage and the production dispatching stage hold their coordinated strategies such that no one has incentive to unilaterally change her action,...

Some Connectedness and Related Property of Hyperspace with Vietoris Topology

Meili Zhang, Bo Deng, Yue Yang, Pilin Che
For a Hausdorff space , we denote by the collection of all closed subsets of . In this paper, we discuss the connectedness and locally connectedness of hyperspace endowed with the vietoris topology. Further path connectedness is investigated. The results generalize some theorems of E. Micheal.

Asymptotic Stability of Runge-Kutta Methods for Linear Delay-integro-diffrential-Algebraic Equation

Qiong Li, Yuxia Wang
This paper deals with the asymptotic behavior of Runge-Kutta methods for linear delay-integro-differential-algebraic equations. It was shown that R-K of A-stability preserves the asymptotic stability of the equations under some conditions if applied to the equations.

GA and ACO-based Hybrid Approach for Continuous Optimization

Zhiqiang Chen, Ronglong Wang
This paper presents an hybrid algorithm based on genetic algorithm and ant colony optimization for continuous optimization, which combines the global exploration ability of the former with the local exploiting ability of the later. The proposed algorithm is evaluated on several benchmark functions. The...

Partial Linear Regression Method in the Application of the Accurate Calculation of PQDIF Harmonic Responsibility

Aiqiang Pan, Xingang Yang, Yijun Liu
Quantitatively evaluating the harmonic responsibility of harmonic source at the point of common coupling (PCC) is an important task of power quality management. Considering the change of background harmonic and the fact that the current monitoring system can only provide the voltage and current statistical...

Extinction and Permanence of a Predator-prey System with Impulsive Control

Yan Song, Wen Xiao, Yajun Gao, Xiaoyu Qi
Based on the biological control strategy in the pest management, we studied a predator-prey model with delayed stage structure and impulsive control. Using the theories and methods of impulsive delayed differential equations, we obtain the sufficient conditions, which guarantee the global attractivity...

Research on Optimization of clinical Pathway Execution based on Multi-agent Simulation

Lili Song, Xueqing Guo
The clinical pathway execution is a complex system engineering related to multidisciplinary or multi-department collaboration such as examination, laboratory test, operation, nursing, etc. This paper has proposed a multi-agent based simulation method from the hospital system level, and some key technologies...

An Improved Delay-Dependent Globally Asymptotically Stability Criterion for the Static Neural Networks with Time-Varying Delay

Kai Mao, Bao Shi, Shudong Zhang
The globally asymptotic stability for static neural networks with time-varying delay is concerned in this paper. By delay fractioning technique and taking more delayed-state variables into account, a newly Lyapunov-Krasovskii Functional was constructed, together with the Jessen integral inequality and...

An Optimization Model for Inventory System based on Supply-demand Balance

Qingsong Jiang, Wei Xing
In order to investigate the inventory optimization of circulation enterprises, demand analysis was carried out firstly considering supply-demand balance. Then it was assumed that the demand process complied with mutually independent compound Poisson process. Based on this assumption, an optimization...

Analysis of Parallel Photovoltaic Inverters with Improved Droop Control Method

Ruixing Lin, Mao Yang, Hongping Li
In this paper, an improved droop control strategy is presented to restrict the maximum power of inverters and to enhance the accuracy of reactive power sharing for parallel inverters in low voltage microgrid. The improved method can decouple active and reactive power through rotating orthogonal transformation,...

Numerical Imitation of the Synchronization of Gene Repressilators

Yu Wu, Junhui Gao
Jordi Garcia-Ojalvo and his partners published an article on PNS in 2004, building numerical models of synchronization of many gene oscillators. We got the examples of the process of synchronization by imitating the model with numerical value and studied on the relationship between the value of Q, the...

Improved Fast Time Reversible Algorithm and Its Applications to Large-Scale Simulation of Ice

Yasuhiro Kajima, Shuji Ogata
A time-reversible algorithm for the rotation of rigid body in the quaternion representation named “Improved Fast Time-reversible algorithm (IFT)” is proposed. In a preceding paper, we have proposed “Fast Time-reversible algorithm (FT)” that is not only time reversible but also conserves the total energy...

Rapid Defects Features Extract Techniques with Chirp Signal in Plate Structures

Fei Deng, Honglei Chen
This work presents a convenience means to get defects features with linear chirp signal and demonstrate it with finite element method and BP neural networks. Aluminum plate models with various kinds of defects modeling with numerical simulation software ABAQUS to get pattern recognition samples.In order...

The Analysis of a HBV Model with Vaccination

Xiaoxia Yuan, Yakui Xue
In this paper, we introduce an improved hepatitis B virus(HBV) model to discuss the impact of vaccination. The basic reproductive number determine the extinction and the persistence of virus infection.When is less than one,the disease-free equilibrium is globally-asymptotically stable and the infection...

Optimal Construction of Stroage Clusters for the Deployment of Cloud Platforms

Cong Xu
Improving the deployment efficiency for large-scale cloud computing platforms is critical for the performance of IaaS (Infrastructure-as-a-Service) cloud, especially under heavy workloads and the ever-changing demands of the tenants. Most of the state-of-the-art automatic deployment mechanisms use a...

WBFS: An Interactive Virtual Simulation Landscape System Based on Kinect

Yuecheng Peng, Qiuhai He, Xinyuan Huang
Using gesture to implement 3D navigation still exists many problems to be solved. This paper introduces a solution about gesture interaction in 3D virtual scenes. In order to protect the intangible culture heritage of Dai Ethnic, a nationality of China, we designed and developed the interactive virtual...

Projection Filter Method Based on State Estimation to Nonlinear Systems

Lijuan Chen, Jizhang Sang, Jianli Du, Junyu Chen
For nonlinear systems (NLS), the estimator design is a crucial and important problem. In this paper, projection-filter-method (PFM) based state estimation approach is proposed to NLS. As the weak solution of stochastic differential model of NLS is denoted by the Kolmogorov's forward equation, this paper...

Mining Time Series Data with Two Dimensional Fuzzy Pattern Rules

Haifeng Xia, Bing Chen, Jiawei Fan, Zhi Li, Dan Gao
Based on association rules and fuzzy pattern theory, this paper presents a data mining model to extract patterns using two-dimensional fuzzy pattern rules, focusing on the discretization of the time series of dependent and independent variables. The referential vector distance is established as a similarity...

Newton Iteration Method for Analysis of Suspension Cable

Jian Qin, Yierta Ba, Yan Ding, Jieming Bai, Hongqiang Zhang
A Newton iteration method is proposed based on the analytic method of segmental catenary for the suspension cable. The method is developed from the Newton iteration method for the nonlinear equations according to the analysis of different common methods. The tangent stiffness matrix of the iteration...

A Demodulation Algorithm for Time-Phase Modulation Based on Nonstationary Signal Analyzing

Zhongyang Mao, Hongxing Wang, Xiao Liu, Zhiyong Zhao, Xiguo Liu
In this paper, the time-frequency distribution property of Time-Phase modulation (TPM) signal is discussed based on nonstationary signal analyzing method. And the mapping relationship between abrupt phase change and time-frequency distribution amplitude in TPM signal is further explored, whereby a TPM...

Research on the Effectiveness of Economic Structural Adjustment in Tianjin

Xuelin Zheng, Zhanxin Ma, Yunling Luo, Jianye An
The economic growth rate of China has gradually present a downward trend after 30 years sustained high-speed growth. Therefore, the improvement of economic efficiency and the optimization of industrial structure is a necessary requirement for sustainable development of China's economy. This paper not...

Nonlinear Cobweb Model with Time Delays

Akio Matsumoto, Keiko Nakayama
We study the effects of production delays on the local as well as on global dynamics of nonlinear Cobweb model in a continuous-time frame- work. After reviewing a single delay model, we proceed to two models with two delays. When the two delays are used to form an expected price or feedback for price...