نتایج جستجو برای: clamped three

تعداد نتایج: 1283750  

Journal: :IEEE open journal of power electronics 2023

High switching frequency operation in power converters leads to a significant reduction size at the cost of increased losses. Thus, soft techniques become necessary reduce WBG devices have benefit low turn-off losses, but turn-on losses are still significant. Triangular Current Mode (TCM) control can achieve zero voltage (ZVS) without adding extra resonant components or active converter. For th...

2009
Xiaoling He Giuseppe Rega

We develop an approach to reduce the governing equation of motion for the nonlinear vibration of a clamped laminated composite to the Duffing equation in a decoupled modal form. The method of weighted residuals enables such a reduction for laminates with clamped boundary conditions. Both rigidly clamped and loosely clamped boundary conditions are analyzed using this method. The reduction method...

Journal: :Open Engineering 2023

Abstract The influence of compressive forces on the lower and upper natural frequencies double beams has been studied in this article. Euler–Bernoulli’s hypotheses have used to derive frequency equations. Two asymmetric were assumed work, four different boundary conditions applied these equations: Pinned–Pinned, Clamped–Clamped, Clamped–Free, Clamped–Pinned. When axial force is increased about ...

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