scholarly journals On the Determination of Microdosimetric Parameters in Time-Varying Radiation Fields: The Variance-Covariance Method

1984 ◽  
Vol 97 (2) ◽  
pp. 237 ◽  
Author(s):  
A. M. Kellerer ◽  
H. H. Rossi
Keyword(s):  
Time Varying ◽  
Radiation Fields

A hybrid analytical-numerical method based on Isogeometric Analysis for determination of time varying gear mesh stiffness

2021 ◽  
Vol 160 ◽  
pp. 104291
Author(s):  
Andreas Beinstingel ◽  
Michael Keller ◽  
Michael Heider ◽  
Burkhard Pinnekamp ◽  
Steffen Marburg
Keyword(s):  
Numerical Method ◽  
Isogeometric Analysis ◽  
Time Varying ◽  
Mesh Stiffness ◽  
Gear Mesh ◽  
Gear Mesh Stiffness

Determination of the group velocity using the time-varying autoregressive TVAR

2007 ◽  
Author(s):  
R. Latif ◽  
E. Aassif ◽  
M. Laaboubi ◽  
G. Maze
Keyword(s):  
Group Velocity ◽  
Time Varying

Determination of Absorbed Doses in the Radiation Fields of a Neutron Generator

2019 ◽  
Vol 52 (5) ◽  
pp. 320-325
Author(s):  
A. A. Lychagin ◽  
L. N. Ulyanenko ◽  
S. N. Koryakin ◽  
M. V. Troshina ◽  
S. E. Ulyanenko
Keyword(s):  
Neutron Generator ◽  
Radiation Fields ◽  
Absorbed Doses

scholarly journals Safety margin against the fatigue fracture under random loading

2018 ◽  
Vol 165 ◽  
pp. 22033 ◽  
Author(s):  
Martin Garan ◽  
Vladimír Chmelko ◽  
Ervin Schafer
Keyword(s):  
Yield Stress ◽  
Fatigue Fracture ◽  
Cross Section ◽  
Material Properties ◽  
Safety Margin ◽  
Time Varying ◽  
Random Loading ◽  
Fatigue Lifetime ◽  
Loading Process

The fatigue lifetime of the structure in operation is express in the number of working cycles, kilometers or time depending units. By harmonic process of loading is possible to express the safety margin as reserve against the required lifetime in the form of number cycles or amplitude of loading. By nonharmonic character of loading process in operation is difficult to express the level of safety margin as the reserve of loading (safety margin in loading). On the case of towing trailer will be discussed more ways of expression the reserve (safety margin) of structure against the fatigue fracture for required fatigue lifetime. For experimental acquired loading process in the most loaded cross-section will be discussed concept of determination of the level safety as reserve in the form of loading parameters. In the case, when the peaks of loading process exceeding the material yield stress (in the most loaded point of the structure) will be discussed concept of expression of loading in the form of time-varying process of strain. By using the cyclic material properties obtained in mode with controlled total strain is possible the safety margin to express also as the multiple of process loading parameters.

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