DYNAMIC RESPONSE ANALYSIS OF THE GEAR TRANSMISSION SYSTEM OF WIND TURBINE UNDER VARIABLE LOAD by ZHANG JianYu, LI JiaJun, DU XiaoZhong

“…Considering internal and external excitations of the gear transmission system of wind turbine,the dynamic equation of the system is derived by Lagrange-theory. The numerical method is used to simulate the dynamics performance of the gear transmission system of wind turbine,the vibration displacement and the meshing force in system which are influenced by time-varying input torque are got.The results can provide a theoretical reference for vibration characteristic analysis and structural optimization design of main drive train of wind turbine.…”
Get full text

DVI NARCIZO INTERPRETACIJOS: ETIKA IR POETIKA PSICHOANALITINIAME KONTEKSTE by Leonarda Jekentaitė

“…Prancūzų psichoanalitikas ir filosofas J. Lacanas labai originaliai mezga ryšius su šiuolaikine kalbos filosofija. …”
Get full text

DVI NARCIZO INTERPRETACIJOS: ETIKA IR POETIKA PSICHOANALITINIAME KONTEKSTE by Leonarda Jekentaitė

“…Prancūzų psichoanalitikas ir filosofas J. Lacanas labai originaliai mezga ryšius su šiuolaikine kalbos filosofija. …”
Get full text

Design and Simulation Analysis of Multi-purpose Lower Limb Exoskeleton Robot by Bingqi Jia, Wenlong Bi, Xiao Wei, Guoxin Xu, Yanjun Zhao, Yidong Sun

“…Five-bar models of the one-leg support stage and the two-leg support stage of the exoskeleton robot are established， and the dynamics model is deduced by Lagrange method to deduce the theoretical moments required for each joint. …”
Get full text

Joint downlink and uplink resource allocation for multi-carrier SWIPT system by Miao CUI, Xin YU, Xueyi LI, Guangchi ZHANG, Yijun LIU, Fan LIN

“…A multi-carrier simultaneous wireless information and power transfer (SWIPT) communication system including one base station (BS) and one user was investigated,where both uplink and downlink adopt orthogonal frequency division multiplexing (OFDM).In the downlink,the BS transmited information and power to the user simultaneously.In the uplink,the user transmited information to the BS by using the power harvested from the BS in the downlink.The weighted sum of the downlink and uplink achievable rates by jointly optimizing subcarrier allocation and power allocation of the uplink and downlink were aimed to maximized.An optimal algorithm to solve the joint resource allocation problem was proposed,which was based on the Lagrange duality method and the ellipsoid method.Finally,the result shows the performances of the proposed algorithm by computer simulations.…”
Get full text

Optimizing strategy of computing off loading energy consumption based on Lagrangian method by Guangxue YUE, Youkang ZHU, Jiansheng LIU, Yasheng DAI, Zhenxu YOU, Hao XU

“…With the development of mobile network technology and the popularization and application of intelligent terminals,mobile edge computing has become an important application of cloud computing.Computing offloading strategy has become one of the key issues in mobile edge computing services.Targeting the total computing time of the mobile terminal and minimizing the energy consumption of the mobile terminal,the computation offloading resource allocation problem of the mobile terminal was modeled as a convex optimization problem,solved by the Lagrange multiplier method,and a threshold-based offloading was proposed.Simulation experiments show that the proposed offloading optimization strategy model can effectively balance the relationship between local computing and offloading,and provide guarantee for executing computation-intensive applications in mobile edge computing.…”
Get full text

Forced vibration analysis of laminated composite plates under the action of a moving vehicle by H.A. Mobaraki, R.-A. Jafari-Talookolaei, P.S. Valvo, R. Haghani

“…The equations of motion of the plate are deduced based on first-order shear deformation theory. Using the Euler-Lagrange equations, the system of coupled equations of motion is extracted and solved by using the Newmark time discretization scheme. …”
Get full text

Total Seepage Resistance Model of Water-Displacing Diffusion of Slurry in Series and Parallel Fractures by Yang Hu, Junhe Xie, Jian Ge, Gang Liu

“…The total seepage resistance model of water-displacing diffusion by slurry in series and parallel fractures is established. With the Lagrange interfacial tracing method, the control equations of water-displacing diffusion by slurry in fracture networks are derived, which get mutually validated with the theoretical results.…”
Get full text

RESEARCH FOR BLOW PRESSURE IMPACT ON THE DYNAMIC CHARACTERISTICS OF LIQUID-AIR HAMMER BASED ON MATLAB by XIE Miao, JIA Can, MAO Jun, XU Chang

“…Blow pressure is the key factor to influence the dynamic characteristics of liquid-air hammer,in order to improving control accuracy of the forging equipment,liquid-air hammer was regard as research object,established liquid-air hammer blow process stages of non-plastic deformation and plastic deformation of Lagrange dynamics model,using the Matlab/Simulink numerical simulation to analyze movement regularity of liquid-air hammer blow process,researched for blow pressure impact on the dynamic characteristics of liquid-air hammer,provided the theoretical basis for the equipment later debugging in order to achieve the purpose of precise control.The field experiment results show that the control system can meet the requirements of liquid-air hammer precision blow process.…”
Get full text

Analysis of Vibration Characteristic of Radial Permanent Magnet Coupling Under Installation Error by Jie Tian, Yanlei Xu

“…Because of the complexity of the expression of magnetic force， it is difficult to solve by analytical mechanics. For this， the Lagrange equation of dissipative system is used to establish its dynamics equation from the angle of energy， and the bifurcation diagram of the system varying with the error value and displacement response diagram with different error values are obtained by solving it according to the actual parameters. …”
Get full text

Lex Mercatoria e Direito do Comércio Internacional by Valerio de Oliveira Mazzuoli

“…Para tanto, optou-se por trazer à luz as concepções jurídicas sobre a matéria desenvolvidas por Berthold Goldman e Paul Lagarde. A conclusão é no sentido de ser a nova lex mercatoria uma ordem jurídica autônoma e independente da vontade dos Estados, pertencente ao universo do Direito e operante no direito do comércio internacional, capaz de regular coerentemente as suas relações jurídicas…”
Get full text

On the Motion of Harmonically Excited Spring Pendulum in Elliptic Path Near Resonances by T. S. Amer, M. A. Bek, I. S. Hamada

“…The response of a nonlinear multidegrees of freedom (M-DOF) for a nature dynamical system represented by a spring pendulum which moves in an elliptic path is investigated. Lagrange’s equations are used in order to derive the governing equations of motion. …”
Get full text

Simulation and Analysis of Dynamics of Lower Limb Exoskeleton Rehabilitation Robots by Ma Xiaojun, Liu Yuyang, Jia Qiusheng, Liu Desheng, Liu Xunbao, Yuan Mingrun

“…Therefore, a lower limb exoskeleton rehabilitation robot is designed, the relationship between the motion state of the exoskeleton robot and the motion mechanism of each joint is explored, the Lagrange equation to model the dynamics of the lower limb exoskeleton is used and the established virtual prototype model into Adams for dynamic simulation is imported. …”
Get full text

Precommitted Investment Strategy versus Time-Consistent Investment Strategy for a General Risk Model with Diffusion by Lidong Zhang, Ximin Rong, Ziping Du

“…We mainly study a general risk model and investigate the precommitted strategy and the time-consistent strategy under mean-variance criterion, respectively. A lagrange method is proposed to derive the precommitted investment strategy. …”
Get full text

Modeling Method and Inherent Characteristic Analysis of Cycloid Pin Gear Transmission by Xueping Song, Aibin Bi, Bowen Lu

“…Considering the eccentric motion of cycloid and the influence of time-varying stiffness， backlash and transmission error of cycloid and pin gear， the differential equation of motion of the system is obtained by Lagrange method. According to the characteristics of positive semidefinite， variable parameters and strong nonlinearity of the system differential equation， the relative meshing displacement of the cycloid wheel and the pin wheel is taken as the generalized coordinate of the system. …”
Get full text

On the Construction of Phenomenological Coronal Mass Ejection Models by D. V. Peregoudov

“…We show that conservation laws take extremely simple form when written in Lagrange coordinates frozen into plasma. Thus, these are easy to conform and practically, there are no reasons not to conform them. …”
Get full text

Forced Vibration Analysis of Laminated Composite Plates under the Action of a Moving Vehicle by Hossein Abbaszadeh Mobaraki, Ramazan-Ali Jafari-Talookolaei, Paolo S. Valvo, Reza Haghani Dogaheh

“…The equations of motion of the plate are deduced based on first-order shear deformation theory. Using the Euler-Lagrange equations, the system of coupled equations of motion is extracted and solved by using the Newmark time discretization scheme. …”
Get full text

Coastal Yorubaland: Habitability, Inhabitance, and Inheritances by Toyin Falola

“…For thousands of years, people have been living along the coast, experiencing interactions with the sea: they were shaped by the lagoon and sea, and they in turn shaped the coastline and waterways. …”
Get full text

Adaptive Iterative Learning Control of Hybrid Drive Cable Parallel Manipulator by Jianbin Cao, Mingsheng Wei, Haixiao Zhao

“…A dynamics model for a HDCPM is established by using Lagrange method. For a HDCPM system with nonlinear， time-varying characteristics and repetitive time-varying disturbance， an adaptive iterative learning control strategy， which controls gain variations with the iterations， is designed. …”
Get full text

Optimization Design of Structures Subjected to Transient Loads Using First and Second Derivatives of Dynamic Displacement and Stress by Qimao Liu, Jing Zhang, Liubin Yan

“…The numerical results show that the optimal design method proposed in this paper can obtain the local optimum design of frame structures and sometimes is more efficient than the augmented Lagrange multiplier method.…”
Get full text