Results 1 to 10 of about 134,702 (277)

Design and implementation of high-speed heavy-load and large-stroke lifting platform

open access: yesZhongguo Jianchuan Yanjiu
ObjectivesIn order to meet the practical requirements for simulating ship motion in adverse sea conditions on land, the development of a high-speed heavy-load and large-travel lifting platform is necessary.MethodsAiming at the characteristics of moving ...
Qianyu QIAN, Yong WU, Weijia LI
doaj   +1 more source

Analysis on Nonlinear Dynamic Characteristic of Synchronous Generator Rotor System

open access: yesComplexity, 2019
This paper focuses on the swing oscillation process of the synchronous generator rotors in a three-machine power system. With the help of bifurcation diagram, time history, phase portrait, Poincaré section, and frequency spectrum, the complex dynamical ...
Xiaodong Wang, Caiqin Song
doaj   +1 more source

Nonlinear Synchronous Control for H-Type Gantry Stage Used in Electric Vehicles Manufacturing

open access: yesEnergies, 2019
The H-type gantry stage (HGS) is widely used in electric vehicle manufacturing and other fields. However, resulting from the existence of mechanical coupling, the synchronous control problem of HGS always troubles many engineers.
Ran Chen   +4 more
doaj   +1 more source

Long period nodal motion of sun synchronous orbits [PDF]

open access: yes
An approximative model is formulated for assessing these perturbations that significantly affect long term modal motion of sun synchronous orbits. Computer simulations with several independent computer programs consider zonal and tesseral gravitational ...
Duck, K. I.
core   +1 more source

The Method of Elimination of Vibrations and Forces Excited by Unbalanced Rotary Machines with Inaccesible Rotor

open access: yesEngineering Transactions, 1994
Possibilities of application of the method of synchronous elimination to the reduction of vibrations and forces in unbalanced rotary machines with inaccessible axes were considered in this paper.
J. Michalczyk, G. Cieplok
doaj  

Cooperative Path Planning and Constraints Analysis for Master-Slave Industrial Robots

open access: yesInternational Journal of Advanced Robotic Systems, 2012
A strategy of cooperative path planning for a master-slave multiple robot system is presented in this paper. The path planning method is based on motion constraints between the end-effectors of cooperative robots. Cooperation motions have been classified
Yahui Gan, Xianzhong Dai, Jun Li
doaj   +1 more source

同步带传动精度测试系统的研究

open access: yesJixie chuandong, 2009
A new test method of synchronous belt driving accuracy is introduced. It implemented two encoders to gain the motion states of driving belt wheel and driven belt wheel respectively.
康博, 陈守强, 郝良果
doaj  

Spectral Motion Synchronization in SE(3)

open access: yes, 2015
This paper addresses the problem of motion synchronization (or averaging) and describes a simple, closed-form solution based on a spectral decomposition, which does not consider rotation and translation separately but works straight in SE(3), the manifold of rigid motions. Besides its theoretical interest, being the first closed form solution in SE(3),
Arrigoni, Federica   +2 more
openaire   +2 more sources

同步带传动机械手的建模与振动控制研究

open access: yesJixie chuandong, 2006
In order to accomplish automatically transmission of the wafer during test, a manipulator with synchronous belt transmission is designed. Because of the flexibility of the synchronous belt, the vibration is inevitable during movement. In order to get the
熊根良, 胡泓, 张春慨
doaj  

Tidal friction in close-in satellites and exoplanets. The Darwin theory re-visited

open access: yes, 2008
This report is a review of Darwin's classical theory of bodily tides in which we present the analytical expressions for the orbital and rotational evolution of the bodies and for the energy dissipation rates due to their tidal interaction.
A. Lemaitre   +33 more
core   +1 more source

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