Dynamic Imbalance Analysis and Stability Control of Galloping Gait for a Passive Quadruped Robot by Chunlei Wang, Ting Zhang, Xiaohui Wei, Yongjun Long, Shigang Wang

“…Some imbalance and balance postures of a passive quadruped robot with a simplified mathematical model are studied. Through analyzing the influence of the touchdown angle of the rear leg on the posture of the trunk during the flight phase, the stability criterion is concluded: the closer are the two moments which are the zero time of the pitching angle and the peak time of the center of mass, the better is the stability of the trunk posture during the flight phase. …”
Get full text

MULTI-OBJECTIVE PARAMETER OPTIMIZATION OF SYNCHRONIZER BASED ON IMPROVED PARTICLE SWARM OPTIMIZATION ALGORITHM by WANG ChunHua, GUO ZhiWei

“…To meet the requirements of shorter synchronization time and higher life for the synchronizer in transmission, mathematical models aiming at synchronization time and synchronizer life were established separately based on Newton’s second law and adhesive wear theory, M-B fractal contact model. …”
Get full text

Effectiveness of heat source/sink and Lorentz force constraints in a non-Newtonian peristaltic arterial blood hybrid nanofluid past an overlapping stenotic artery by Vedhesh Dhinakaran, Keerthi Devarajan Anuradha, J.U. Viharika, Umair Khan, Nermeen Abdullah, Samia Elattar

“…The problem is formulated using appropriate mathematical models employing non-dimensional parameters and stenosis approximations. …”
Get full text

A New Adaptive Control for Five-Phase Fault-Tolerant Flux-Switching Permanent Magnet Motor by Hongyu Tang, Wenxiang Zhao, Chenyu Gu

“…In this paper, its operation principle is presented briefly and its mathematical model is derived. Further, a new adaptive control for an FT-FSPM motor, based on the backstepping method and the sliding mode control strategy, is proposed. …”
Get full text

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. …”
Get full text

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. …”
Get full text

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. …”
Get full text

Active Design and Characteristic Analysis of Gear Pump with Low Pulsation by Cui Xiangbo, Luo Shanming, Wang Jian

“…The mathematical characterizations of equations for instantaneous flow rate and flow pulsation coefficient are deduced by using the polar distance and the pressure angle function according to gear meshing theory. The mathematical model of the active design of gear pump with low flow pulsation is established,the critical condition of the flow pulsation coefficient is deduced and the design procedure is given. …”
Get full text

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. …”
Get full text

An Evolutionary Learning Whale Optimization Algorithm for Disassembly and Assembly Hybrid Line Balancing Problems by Xinshuo Cui, Qingbo Meng, Jiacun Wang, Xiwang Guo, Peisheng Liu, Liang Qi, Shujin Qin, Yingjun Ji, Bin Hu

“…In this work, a hybrid production line that combines disassembly and assembly processes, incorporating human–machine collaboration, is designed based on the traditional disassembly line. A mathematical model is proposed to address the human–machine collaboration disassembly and assembly hybrid line balancing problem in this layout. …”
Get full text

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. …”
Get full text

A note on global stability for malaria infections model with latencies by Jinliang Wang, Jingmei Pang, Toshikazu Kuniya

“…., 10(2) 2013, 463-481.] presented a mathematical model to investigate the spread of malaria. …”
Get full text

Hesitant Bipolar-Valued Fuzzy Soft Sets and Their Application in Decision Making by Jin-Ying Wang, Yan-Ping Wang, Lei Liu

“…In order to further improve the accuracy of decision making, a new mixed mathematical model, named hesitant bipolar-valued fuzzy soft set, is constructed by combining hesitant bipolar-valued fuzzy sets with soft sets. …”
Get full text

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. …”
Get full text

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. …”
Get full text

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. …”
Get full text

Research and Design of RU Type and YU Type Pulley Cutter Tooth Profile of Engine Timing System by Jianhua Guo, Zhenzhen Hu, Yizhen Wu, Junpeng Hou, Hongyuan Jiang

“…Firstly, the conjugate tool tooth surface of the pulley tooth profile is enveloped based on the meshing principle, and the discrete data of the envelope curve is mathematically fitted to determine the mathematical model of the cutter tooth profile. Secondly, through the second enveloping process of the cutter on the pulley, it is found that there is an undercut at the top of the tooth profile of the processed pulley tooth profile. …”
Get full text

Dynamic Modeling and Control of Electromechanical Coupling for Mechanical Elastic Energy Storage System by Yang Yu, Zengqiang Mi

“…The mechanical device of the complex system is considered as a node in generalized coordinate system, the terse nonlinear dynamic model of electromechanical coupling for the electromechanical system is constructed through Lagrange-Maxwell energy method, and the detailed deduction of the mathematical model is presented in the paper. The theory of direct feedback linearization (DFL) is applied to decouple the nonlinear dynamic model and convert the developed model from nonlinear to linear. …”
Get full text

Resistance Prediction for Hard Chine Hulls in the Pre-Planing Regime by Radojcic Dejan, Zgradic Antonio, Kalajdzic Milan, Simic Aleksandar

“…Regression analysis and artificial neural network (ANN) techniques are used to establish, respectively, Simple and Complex mathematical models. For the Simple model, resistance is the dependent variable (actually R/Δ for standard displacement of Δ = 100000 lb), while the Froude number based on volume (FnV) and slenderness ration (L/V1/3) are the independent variables. …”
Get full text

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. …”
Get full text