Optimum Design of Cylindrical Worm Drive by Wang Yuandong

“…Taking a cylindrical worm drive mechanism as the research object,the minimizing the volume of worm gear as objective function,the limit of the worm gear tooth surface contact strength,worm stiffness,number of worm threads,worm gear module and worm diameter coefficient as constraint conditions,the mathematical model of optimization design is established. …”
Get full text

Pulsation Calculation of Cylindrical Underwater Gas Explosion Products in Well by A. M. Sheiko, V. V. Ivashechkin, V. V. Veremenuk

“…The paper considers a mathematical model of pulsation process of cylindrical underwater gas explosion products in the well at gas-impulse regeneration filters. …”
Get full text

Application of Generalized Fractional Thermoelasticity Theory with Two Relaxation Times to an Electromagnetothermoelastic Thick Plate by A. M. Abd El-Latief

“…The fractional mathematical model of Maxwell’s equations in an electromagnetic field and the fractional generalized thermoelastic theory associated with two relaxation times are applied to a 1D problem for a thick plate. …”
Get full text

Optimum Design of Cone Type Friction Clutch based on Fuzzy Comprehensive Evaluation by Yang Yongqiang, Li Xiaoying, Cao Botao, Zhang Chunxia, Zhang Man

“…Based on the dynamics research,an optimum mathematical model of cone type friction clutch is established with the working space for the optimization objective.Aiming at the fuzzy factor analysis of some important design parameters,the fuzzy comprehensive evaluation method is used to optimize this clutch.It is shown by calculation that the working space can be obviously decreased by optimization.Therefore,this optimization method provides the theoretical foundation to research the performance of cone friction clutch.…”
Get full text

Numerical Solution of Problem for Non-Stationary Heat Conduction in Multi-Layer Bodies by R. I. Esman, V. A. Ustimovich

“…A mathematical model for non-stationary heat conduction of multi-layer bodies has been developed. …”
Get full text

Research of CNC Gear Hobbing Automatic Programming Technology by Diao Xiuhui, Li Jinbo

“…In order to improve the efficiency of gearprocessing,a kind of CNC hobbing automatic programming system is presented. Firstly,the mathematical model of the hober- axial roll cut method is established.Then,the hober hardware platform of CNC gear hobbing automatic programming system is established,the several functional modules and the software page set are designed. …”
Get full text

Synthesis of Automatic Control System of Step-Up DC Voltage Converter Operating in Boundary-Continuous Current Conduction Mode by A. V. Mironovich, P. P. Primshits

“…Functional diagram of a logic unit ensuring boundary-continuous mode has been developed. A mathematical model of a converter operating in a boundary-continuous mode, has been built in the paper. …”
Get full text

IPTV user’s on-demand behavior based on adaptive segmental stretched exponential model by Buhua CHEN, Ge CHEN, Jie LIANG

“…The IPTV user’s on-demand behavior model based on adaptive segmental stretched exponential (ASSE) was proposed to optimize the configuration of IPTV CDN system,to improve the video scheduling and storage strategy,and to provide users with better experience for video access.At the same time,the probability of the video access by using the actual IPTV user’s on-demand data of China Telecom was simulated.Experiments show that compared with the traditional modeling methods,the ASSE model proposed not only achieves the purpose of simplifying the mathematical model and reducing the computation,but also improves the accuracy of the curve fitting.It has good consistency with the actual data.…”
Get full text

Stability Analysis of Predator-Prey System with Fuzzy Impulsive Control by Yuangan Wang

“…Having attracted much attention in the past few years, predator-prey system provides a good mathematical model to present the correlation between predators and preys. …”
Get full text

DEVELOPING THE PROGRESSIVE TIME NORMS ON THE OPERATION OF REPAIR MANUFACTURE FOR THE AIRCRAFT ENGINES USING THE EXPERIMENT PLANNING THEORY by A. Tikhonov, A. Komarova

“…Proved the necessity and possibility of using the method of rotatable experiment planning when building the mathematical model of time norms for performing the technological repair operation. …”
Get full text

Flow of electrorheological fluid under conditions of slip on the boundary by R. H. W. Hoppe, M. Y. Kuzmin, W. G. Litvinov, V. G. Zvyagin

“…We study a mathematical model describing flows of electrorheological fluids. …”
Get full text

Stress Redistribution in Statically Indeterminate Corroded Reinforced Concrete Beams by A. G. Tamrazyan

“…It is noted that the ability of a reinforced concrete beam to rotate is crucial for both operational and limit states, as it affects the deflection, moment redistribution and energy absorption. A mathematical model that predicts the moment redistribution factor is developed. …”
Get full text

Global Dynamics of an HTLV-1 Model with Cell-to-Cell Infection and Mitosis by Sumei Li, Yicang Zhou

“…A mathematical model of human T-cell lymphotropic virus type 1 in vivo with cell-to-cell infection and mitosis is formulated and studied. …”
Get full text

DEVICE AND METHODS FOR RESEARCH ROLLING FRICTION AND CONTACT ADHESIONE IN PRE-ROLLING by I. Z. Gilavdary, N. N. Riznookaya

“…Describes the experimental setup and the experimental results, which are consistent with a mathematical model with high accuracy. In all the experiments gives estimates of accuracy.…”
Get full text

Dynamics Analysis of the Melt Conveying Process in a Novel Extruder by Zan Huang

“…Here we present a mathematical model to analyze dynamics in the melt conveying process. …”
Get full text

System Reliability Modeling and Analysis of Distributed Networks by Guanghui Wei

“…Meanwhile, task request, task scheduling, and execution phase will be also studied, and the establishment of reliability mathematical model of distributed network will be discussed to provide actual reference significance for the design of the distributed network system.…”
Get full text

Tolerance Design for RV Reducer based on the Method of Weighting by Gong Linhuan, Zuo Jianming

“…A new method for the tolerance design of RV reducer- method of weighting is proposed. The mathematical model is established in the first step,the model is related to hysteretic errors and the input designed parameters. …”
Get full text

Optimal Design of Tooth Profile Parameter of Straight-conjugate Internal Gear Pair by Hu Hanlin, Cui Jiankun, Xu Jinbo

“…The optimal design of the straight-conjugate internal gear pair tooth profile parameter is carried out,the performance parameter functional equation of the straight-conjugate internal gear pair is analyzed.The optimization design mathematical model is set up,and the design variables are decided.By making use of the Matlab optimizing software tool,the optical calculation to the whole gear pair and he detailed comparison about the performance and tooth profile parameters of the before and after are carried out.…”
Get full text

Matching Optimized of Clearance of Bearing Inner and Outer Ring by Chen Guojin, Jin Duting, Chen Chang, Su Shaohui, Li Long

“…The 10 pairs inner and outer rings is chosen after step matching to second matching,the mathematical model of second matching is established and the directed test matrix is introduced to establish the solving model of a new iterative algorithm. …”
Get full text

Analysis of optimization for properties of UWB indoor multipath channel by HU Luo-quan, ZHU Hong-bo

“…Methods of optimization were proposed for analyzing the properties of UWB indoor multipath channels,and a mathematical model for UWB channel modeling was discussed.Assumptions of stochastic bridge process and probabilistic choice were adopted.A UWB channel impulse response based on bounded Brownian bridge model （BBBM） was constructed.The judgments of effective random paths,and modeling algorithms based on the methods of optimization were presented.The results of simulation for UWB channels demonstrated that the BBBM could obtain the similar properties to the ones of experiments and UTD methods,some characteristic parameters corresponded well with the experimental values.…”
Get full text