National Repository of Grey Literature 16 records found  1 - 10next  jump to record: Search took 0.00 seconds. 
A bit of thinking over a state of our machinery research
Balda, Miroslav
The contribution deals with changes of conditions for machine research in the Czech Republic in the last decade. It concludes that the effectivity of expenses may raise, if the final user were better informed on results gained in the process of research.
Shortening of multiaxial fatigue tests
Svoboda, Jaroslav
A method has been developed for fast shortening of multiaxial fatigue tests.
An Influence of out-of-phase combined loading
Svoboda, Jaroslav ; Václavík, Martin
The paper deals with a problem of finding a fatigue limit criterion for components subjected to combined out-of-phase loading.
Identification of nonlinear damping of blades
Balda, Miroslav
A method for identification of damping parameters is described, based on a nonlinear least-squares Matlab procedure.
Mesoscopic scale approach for fatigue
Václavík, Martin
Mesoscopis scale approach for fatigue limit criterion of components subjected to multiaxial loading is described in this paper.
The influence of shear and normal stresses ratio on fatigue crack propagation
Václavík, Martin
Experimental discovery and an analytic description the influence of shear and normal stresses ratio on propagation of long fatigue cracks.
The influence of power spectral density on the crack propagation by the random loading
Svoboda, Jaroslav ; Mazanec, Jiří
The study of fatigue properties of the steel E460 proved that the form of the power spectral density influences the durability of test specimens stressed with a wideband random loading.
Fatigue damage of blades under transients
Balda, Miroslav
Damping blades of turbines caused by a sudden change of a loading. Such a change causes transients in vibrations of blades, and a cumulation of the fatigue damage. Four analytical models are studied.
Propagation of Fatigue Cracks under Multiaxial Loading
Václavík, Martin
Work is aimed at fatigue properties of the steel 11523.1 specimens under alternating push-pull and torsion. Velicity, direction and inicialization location of a fatigue crack is detected. Results are compared to predicted values acording to various accesses and authors.
Useful functions for the MATLAB utilisation
Balda, Miroslav
Paper deals with a set of small functions, that proved to be useful in application programs formulation. Functions are arranged in two directories SubML (general functions) and Arr3D (for 3D array or matrix time series). The functions are applicable in dynamic systems signal processing. Both directories are available on Humusoft www pages and can be added to browsed ones by a standard function "addpath".

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