моделювання

Методи і засоби проектування мікропотокових МЕМС типу LAB-ЧІП

In the article a hydrodynamic flow model for microfluidic MEMS is presented. Methods and tools for design automation of microfluidic flows were applied. The possibilities of modern CAX tools for the simulation and optimization of fluid flow in microchannels were analyzed.

Моделювання розпилювання колоди розвальним способом на пиломатеріали з урахуванням її реальної форми

Mathematical model of log sawing to parallel of linear regressive axis by through-andthrough method into lumber with consideration of surface shape of real logs based on results of scanning for surface shape of log cross sections was developed. The features of calculation for mathematical model of sawing pattern taking account log rotation or sawing pattern around log axis at the fixed angle under cutting (sawing) by vertical and horizontal cutting planes were validated.

Алгоритм синтезу SPICE схем заміщення гальваномагнітних перетворювачів Холла

The work presents an algorithm of synthesis of SPICE equivalent circuits for galvanomagnetic sensors based on Hall devices. By means of typical library elements circuits were composed in order to take into account magnetic values and sensor’s orthogonal coordinates that are not supported by SPICE. The obtained modeling results fit the results of experimental investigations and form the basis of the sensor’s calibration procedure.

Improved calculation and strength of thermowells during operation

Accurate evaluation of possible safe operation of thermowells essentially depends on the accuracy of the maximum stresses in them during operation. These stresses are generally determined from simple engineering formulas for bulk of canonical shape, mostly cylindrical shells or beams for the relevant boundary conditions. Thus the general solution is obtained step by step. First the tangential stresses are obtained from relations for cylinder subjected to external pressure.

Design features of criminology as a method of study of personality of university students in connection with the commission of mercenarily-violent crime

In the article the features of design of criminology are considered as a complex method of research of personality of student of institution of higher learning, in connection with doing of mercenarily-violent crimes. Methodology of design of criminology is specified.

Mathematical apparatus for prediction of anomalous inflows (tsunami)

The paper contains the description of the feasible approach to modeling of environmental processes, namely abnormal tidal (tsunami). The suggested mathematical apparatus is based on the statistical methods and comprises hidden Markov models, linguistic modeling and similar trajectories method.

Wave field simulation on the gas-condensate field structure

The results of seismic wave field modeling on the cross-section model of the crust (for Drobyshivske gas-condensate field example) were presented. Complicated cut of the crust, resulting geophysical study, represented as a reservoir model. When modeling, seismic wave field features of two-dimensional cross section were taken into account: longitudinal, transverse and exchange waves received on seismograms of longitudinal and transverse vibrations as a result of default distribution of velocities of longitudinal, transverse waves and the density in half-space medium.

Analysis and implementation of computing workflows for service-oriented CAE/CAD software

This paper is devoted to the architectural aspects of integration of workflow management into service-oriented CAE/CAD software capable to run computations on grid resources. The analysis of possible solutions is based on the workflow execution time estimation. The multilevel workflow concept is also described.

Analiz rezultativ imitatsiinoho modeliuvannia shchodo vplyvu temperaturnykh chynnykiv na stan poverkhon v protsesi yikh formoutvorennia [Analysis of simulation results the effect of temperature factors on the condition of the surfaces in forming process]

Simulated thermal rheological pattern cutting, the influence of dynamic deformation temperature indicators on the quality of surface finish, and the influence of thermodynamic parameters on the mode of deformation of the workpiece and the tool, and thus the formation of residual stresses and strains.