Numerical load-point calculation method for large wound-field synchronous machines

2020 ◽  
Author(s):  
Matthias Centner
Keyword(s):  
Calculation Method ◽  
Synchronous Machines ◽  
Load Point ◽  
Point Calculation ◽  
Large Wound

A calculation method of field current of synchronous machines at sudden short-circuit

2005 ◽  
Vol 151 (3) ◽  
pp. 61-70 ◽  
Author(s):  
Takashi Kano ◽  
Shu Yamamoto ◽  
Takahiro Ara
Keyword(s):  
Calculation Method ◽  
Short Circuit ◽  
Synchronous Machines

Lobatto Point Quadrature for Thermal Lubrication Problems Involving Compressible Lubricants

2005 ◽  
Author(s):  
L. Moraru ◽  
T. G. Keith
Keyword(s):  
Calculation Method ◽  
Efficient Algorithm ◽  
Legendre Polynomials ◽  
Continuity Equation ◽  
Transverse Velocity ◽  
Fine Mesh ◽  
Point Calculation ◽  
Temperature And Pressure ◽  
Grid Points

Refined solutions of thermal lubrication problems generally require fine mesh and many iteration steps. To resolve these difficulties, Elrod and Brewe (1) proposed an efficient algorithm based on the use of Lobatto point quadrature. Within this approach, the unknown temperature across the film is written in a series of Legendre polynomials. This paper presents a Lobatto point quadrature algorithm which is applicable for thermal lubrication problems with compressible lubricants. In this case both density and viscosity of the lubricant are taken to be temperature and pressure dependent. The transverse velocity is obtained from the continuity equation. Use of the Labatto point calculation method has resulted in greater accuracy without the use of a large number of grid points.

A wavelength-shifting-fibre-based scintillator neutron detector implemented with the median point calculation method

2012 ◽  
Vol 7 (02) ◽  
pp. C02003-C02003 ◽  
Author(s):  
T Nakamura ◽  
T Kawasaki ◽  
T Hosoya ◽  
K Toh ◽  
M Ebine ◽  
...  
Keyword(s):  
Calculation Method ◽  
Neutron Detector ◽  
Point Calculation ◽  
Median Point

The Effects of the Wear Elongation on the Load of a Long-Distance Transmission Chain

2013 ◽  
Vol 456 ◽  
pp. 60-64 ◽  
Author(s):  
Jun Tian Zhao ◽  
Shun Zeng Wang ◽  
Zhen Xing Wang
Keyword(s):  
Dynamic Load ◽  
Calculation Method ◽  
Static Load ◽  
Long Distance ◽  
Roller Chain ◽  
Long Distance Transmission ◽  
Transmission Chain ◽  
Load Calculation ◽  
Point Calculation ◽  
Theoretical Results

This paper is on the effects of the wear elongation on a long-distance transmission roller chain. It presents the formulas of load calculation and the formulaic relationship between load and wear elongation in theory, with the point-by-point calculation method and chains/sprockets gearing model. With RecurDyn software for the analysis and verification of the theoretical results, it concludes that the total tension of every chain is the sum of static load and the corresponding proportion of dynamic load, and that a logical pre-tension can effectively reduce the vibration.

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