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The reliability level of MEMS component's layered structure is low and there isn't standardized methods to test it. This paper introduces the reliability enhancement test to study the reliability issues of MEMS layered structure. By analyzing common failure modes and causes of MEMS layered structure, the thermal-cycle test is determined as the stress, based on which the test profile is designed. The...
Through the analysis of wind turbines, photovoltaic systems, fuel cells and high frequency micro turbines, their models in power flow calculation were established in this paper. Moreover, a novel power flow algorithm based on back/forward sweep technology for radial distribution networks considering Distributed Generation (DG) is proposed. The algorithm develops a reactive power compensation method...
Omnidirectional device has high maneuverability and wide application. Kinematic and dynamic equations of Mecanum wheel are derived according to its structure feature. The influence made by angles between wheel axes for centered layout is analysed, there is comparison between 3-wheeled and 4-wheeled layout for even centered layout. Rules of omnidirectional motion are summarized, which provides theoretical...
To analyse the problem of anisotropy of omni directional robot, kinematic and dynamic equations of Mecanum wheel system are derived according to its structure feature. Considering a typical layout, the influence made by tilted angles of rollers for longitudinal symmetry layout is analysed, rules of omni directional motion can be summarized. Dynamic models with longitudinal symmetry layout are built...
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