نتایج جستجو برای: static eccentricity

تعداد نتایج: 114388  

Journal: :Journal of Sound and Vibration 2021

A multiphysics asynchronous electric machine model based on the angular approach is developed in this paper by adding interaction between Unbalanced Magnetic Pull and rotor center radial displacements to reinforce electro-magneto-mechanic fields couplings. The novelty of proposed lies also calculating instantaneous speed shaft therefore tackling problems non-stationary operating conditions. Thi...

Journal: :Energies 2021

Static eccentricity (SE) is frequently generated by manufacturing processes. As the nonuniformity of air-gap length caused SE, torque ripple and cogging increase in motor. This study analyzes distorted back electromotive force (EMF) due to SE. Further, a motor design considering SE performed for stable EMF low torque. First, was diagnosed analyzed using measured from test results base model. In...

Direct displacement based design (DDBD) is a conceptual framework that directly design a structure to achieve an expected performance level under specified seismic intensity. In this study, two important issues relevant to torsional response of mass eccentric 8-story RC building designed with DDBD approach are investigated. These issues are including the effects of unbalanced mass distribution ...

Journal: :iranian journal of mathematical chemistry 2012
m. ghorbani kh. malekjani a. khaki

the eccentricity connectivity index of a molecular graph g is defined as (g) = av(g)deg(a)ε(a), where ε(a) is defined as the length of a maximal path connecting a to othervertices of g and deg(a) is degree of vertex a. here, we compute this topological index forsome infinite classes of dendrimer graphs.

2010
Michael J. Dinneen Yun-Bum Kim Radu Nicolescu

In the field of molecular computing, in particular P systems, synchronization is an essential requirement for composing or sequentially linking together congenial P system activities. We provide an improved deterministic algorithm based on static structures and traditional rules, which runs in 4e + 13 steps, where e is the eccentricity of the initiating cell. Using the same model, extended with...

2008
Sergiu I. Vacaru

We study the perturbations of two classes of static black ellipsoid solutions of four dimensional vacuum Einstein equations. Such solutions are described by generic off–diagonal metrics which are generated by anholonomic transforms of diagonal metrics. The analysis is performed in the approximation of small eccentricity deformations of the Schwarzschild solution. We conclude that such anisotrop...

Journal: :Symmetry 2017
Nazeran Idrees Muhammad Jawwad Saif Asia Rauf Saba Mustafa

The Zagreb eccentricity indices are the eccentricity reformulation of the Zagreb indices. Let H be a simple graph. The first Zagreb eccentricity index (E1(H)) is defined to be the summation of squares of the eccentricity of vertices, i.e., E1(H) = ∑u∈V(H) Symmetry 2016, 9, 7; doi: 10.3390/sym9010007 www.mdpi.com/journal/symmetry Article First and Second Zagreb Eccentricity Indices of Thorny Gra...

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