Investigation of Thermostressed State of Coating Formation at Electric Contact Surfacing of “Shaft” Type Parts by Olena V. Berezshnaya, Eduard P. Gribkov, Valeriy D. Kuznetsov

“…The forming of coating at electric contact surfacing is considered. The mathematical model of the coating formation is developed. …”
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Influence of Key Parameter on Contact and Lubrication Performance of the Roller Enveloping Internal Engagement Worm Gear Transmission by Yuanhong Song, Xingqiao Deng, Yuanyuan Jiang, Jinge Wang

“…In order to analyze the influence of key parameters on the contact and lubrication performance of the inner meshing worm gear of the roller envelop， the mathematical model of the new worm drive is built. And the lubrication angle and the induced normal curvature equation are constructed by the meshing equation. …”
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Design of Rectangular Compensation Mechanism based on the Cross Double-slider Model by Shu Zhiwei, Chen Xinyuan, Zhan Xiaohui, Deng Jianghong

“…The cross double-slider model is put forward to solve the defect of that continuous casting mold material area is rectangular,while the ordinary double pendulum rod type automatic mold flux feeder machine material area is sector,there is a blind zone of feeding. And the mathematical model of the cross double-slider model is established,the equation of cam contour curve is calculated,the reason of the dead center that the design based on the cross double-slider model is analyzed. …”
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Three-dimensional polarization amplitude modulator and demodulator by Han-bin SONG, Jun-bo ZHANG, Xiao-guang CHEN, Jian-qiu ZHANG

“…Based on the mathematical description of a space electromagnetic field,a novel approach to the three-dimen-sional joint modulation of the signal amplitude,polarization angle and polarization phase angle of an electromagnetic signal in wireless communication was presented.The model of the three-dimensional modulation signal was first given by the equations of the relationship among the parameters of a space electromagnetic field.Then,the transmission im-plementation of the three-dimensional joint modulation signal was discussed by a vector antenna.At the receiving end,a signal amplitude detection and DOA polarization parameter estimation method was given to demodulate the received three-dimensional joint modulation signal.The bit error rate and performance of the proposed three-dimensional joint modulator and demodulator were analyzed.Both the analysis and the simulation results show that a high information transmission and a low bit error rates can simultaneously be obtained by the proposed method.…”
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Estimating the Physical Properties of Nanofluids Using a Connectionist Intelligent Model Known as Gaussian Process Regression Approach by Tzu-Chia Chen, Ali Thaeer Hammid, Avzal N. Akbarov, Kaveh Shariati, Mina Dinari, Mohammed Sardar Ali

“…This precise yet simple model can be a good alternative to the complex thermodynamic, mathematical-analytical models of the past.…”
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Study on an effective integrated model of Ka-band mobile satellite channel by Juan WEI, Da LIU, Gang-qi TIAN

“…In order to describe the Ka-band mobile satellite communications channel fading features more realitically,a mobile satellite integrated channel model was proposed.The characteristics of the mobile satellite propogation channel were analysed in detail.Weather conditions,as well as multi-path fading and shadowing were taken into account as main influencing factors.On this basis,airspace channel model was built obeying the Gaussian distribution as well ground surface,which obey Rice,Rayleigh and Lognormal joint distribution.Then the integrated channel model was presented considering weather effects on condition that the two parts are independent each other in the influence of the channel characteristics.The mathematical analysis model and simulation model of the new integrated channel model were established respectively.Finally,the BER(bit error rate)performance was analyzed for different weather conditions and shadows.Compared with the theoretical BER,the integrated channel model in satellite mobile communication systems is correct and reasonable.…”
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MODEL IDENTIFICATION AND LEVEL CONTROL OF COUPLED TANKS SYSTEM by OKUBANJO AYODEJI, OKANDEJI ALEXANDER, ALAO PETER, OLALUWOYE OLAWALE, ONAIFO FRANK, MUFUTAU OLAYEMI

“…The dynamics of the CT system is experimentally derived by system identification method and validated with a mathematical model that depicts the dynamic behaviour of the coupled tank system. …”
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A Novel Performance Analysis of the Microstrip Antenna Printed on a Cylindrical Body by Amr M. Mahros, Marwa M. Tharwat, Ali Elrashidi

“…In this work, we study the effect of curvature on the performance of circular patch microstrip antenna. A mathematical model for the antenna parameters as functions of curvature is also introduced. …”
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Performance-Based Seismic Fragility and Residual Seismic Resistance Study of a Long-Span Suspension Bridge by Fangwen Wu, Jianfei Luo, Wei Zheng, Cheng Cai, Jun Dai, Yajun Wen, Quanyou Ji

“…In this paper, we provide the fragility curves of the key sections of the pier by incremental dynamic analysis (IDA), mathematical statistical analysis, and the damage law and obtained the failure state of the structure and the overall seismic capacity residual ratio and the stage seismic capacity residual ratio of the structure. …”
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An Improved Internal Model Principle Based Multivariable Nonlinear Control Method with Multiclass Nonharmonic Disturbances and Its Application to Speed Control of a Motor Drive Sys... by Yang Yu, Zengqiang Mi, Tong Zhao, Yikun Xu

“…The paper first introduces the importance and state of the art for disturbance rejection problem and describes the control problem in the form of mathematical expressions. It stresses the multiclass disturbances produced by the exosystem satisfying certain characteristic conditions. …”
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Design of the Initiative Parameterization Accurate 3D Model of ZA Worm gear and Worm by Liu Guangwu, Hou Hongsheng, Tang Yangyang

“…The tooth surface of worm gear of ZA-type worm gear and worm transmission is spatial conjugate surface of complex worm cylindrical spiral surface,the mathematical equations describing of the worm gear tooth surface is complex,parametric accurate modeling is difficult.According to the principle of worm hob enveloping machining worm tooth surface,collaborative using the PDG,GSD,ASD,DMU SPA,DMU KIN 5functional modules and knowledge tools of CATIAV5 platform,the method of control the affine parameter family of curves to create a leading multi-section composite configuration 3Ddigital modeling used for precise parametric digital modeling of the ZA worm gear is proposed,a controllable parameter modeling processes with the negative feedback control of the contact analysis of the static and dynamic area is constructed,a foundation of accurate parametric 3Ddigital modeling for worm gear and worm transmission CAE advanced analysis is laid.…”
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Study on the Steady-state Temperature Field of High Speed Spur Gear with Consideration of Elastohydrodynamic Lubrication by Fang Te, Liu Shaojun

“…Aiming at the real meshing state of high speed spur gear,the calculation mathematical model of line contact elastohydrodynamic lubrication is established,the model including Reynolds,elasticity and load balance equations etc. …”
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Prediction of Cutting Conditions in Turning AZ61 and Parameters Optimization Using Regression Analysis and Artificial Neural Network by Nabeel H. Alharthi, Sedat Bingol, Adel T. Abbas, Adham E. Ragab, Mohamed F. Aly, Hamad F. Alharbi

“…In addition to ANN models, traditional regression analysis was also used to build a mathematical model representing the equation required to obtain the surface roughness. …”
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Liquid Sloshing in a Horizontal Circular Container with Eccentric Tube under External Excitation by Mohammad Nezami, Mohammad Mehdi Mohammadi, Atta Oveisi

“…Appropriate conformal mapping transformation in combination with the linear potential theory is employed to develop mathematical model for two-dimensional sloshing in horizontal circular cylindrical containers with overall eccentric hole. …”
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Development of strength abilities in university students by Panina, Olga V., Frolova, Lyudmila V.

“…The results of the study are mathematically processed and indicated in percentage terms regarding development of indicators of these strength qualities at the beginning and at the end of the academic year. …”
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Study on the Friction Torque Calculation and Experimentation of Cycloid Ball Planetary Transmission by Zhu Jiangtao

“…Based on the kinematics of cycloid steel ball planetary transmission,the contact state between the meshing pair and the speed reducer is determined. The mathematical model of the friction torque of the gear pair and the constant velocity pair is established. …”
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Dynamic Balance Optimization of an Ultra High-speed Packaging Machine based on a Micro Multi-objective Genetic Algorithm by Hu Bo, Chen Guochun, Li Huijie, Zhou Changjiang

“…The equations of shake force and torque are derived by building a mathematical model for the components. Taking the root-mean-square of shake force and torque into account,dynamic balance of the components with variables of mass and barycentre location is optimized based on a micro multi-objective genetic algorithm. …”
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The research of magnetic field, its power characteristics, properties of materials of electrical devices with unclosed magnetic system by E. G. Andreeva, V. S. Plekhanova

“…The purpose of the research: the development of electrotechnical devices with various design of unclosed magnetic systems, their mathematical and simulation modeling, taking into account the magnetic properties of the materials used to improve the technical and economic and mass-dimensional indicators (energy efficiency). …”
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Production-Distribution of Perishable Food considering Customer Time Window by Weibin Feng, Shangcheng Du, Yanli Xiao, Xiangyang Ren

“…Aiming at the production-distribution problem of perishable food, considering the interference caused by the change of the customer’s time window in actual distribution process, using the ideas of disruption management, analyzing the disturbance of the interference event to the production-distribution system, and constructing the perishable food production-distribution problem disturbance identification and disturbance measurement, and with the minimum deviation between the new scheme and the original scheme as the goal, a mathematical model of disturbance recovery is established. …”
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TRANSMISSION ACCURACY OF SYNCHRONOUS BELT BASED ON RECURDYN by GUO JianHua, MENG QingXin, YU Xin, HU QingMing

“…Using the mechanism of the tooth climbing of the belt,the mathematical model of the transmission error is established,reveals the transmission error of the synchronous belt is a function of the pulley pitch angle.Establish the virtual prototype dynamic transmission simulation model of synchronous belt based on Recur Dyn,through collect data and numerical analysis that mesh point with climbing tooth trace-Archimedes spiral,simulation results are consistent with the experimental results,to verify the accuracy of the simulation analysis.And compare the transmission accuracy of the new profile and L type trapezoidal tooth synchronous belt.The results showed that the transmission error of the new profile synchronous belt（Δθ =0.932mrad） less than L type trapezoidal toothed（Δθ = 1.615mrad）,shows that the capacity anti climbing tooth of the new profile synchronous belt is stronger than L type trapezoidal tooth,the tooth design of new profile synchronous belt is more reasonable.…”
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