Observations on Congential Fissure of the Palate, &c.
Observations upon the Importance and Value of a Knowledge of the Collateral Branches of Medicine and Surgery in Connecti...
Modelling of cryogenic structure under seismic loading/Kriogeninio įrenginio, veikiamo seisminės apkrovos, modeliavimas
Nagrinėjamas kriogeninio įrenginio seisminės analizės uždavinys baigtinių elementų metodu. Kriogeninį įrenginį sudaro erdvinis rėmas su lakštinio plieno apvalkalu. Pateikiami du seisminio modeliavimo uždaviniai. Pirmajame uždavinyje pateikiamas toks seisminės analizės maternatinis modelis, kuris įvertina seisminį procesą laike. Tokio proceso pavyzd...
Sound absorption qualities of a cylinder-shaped isolated acoustic resonator/Cilindrinės formos vienetinio akustinio rezo...
In the article, an isolated acoustic resonator consisting of a cylinder-shaped hole of variable volume and with large and variable diameter is theoretically analyzed. Theoretical formulaes by which sound absorption of such resonator is computed are presented. The computations incorporate the influence exerted by overtones, i.e. odd harmonics, and s...
Plazma arc joining of thin plate constructions/Plazminis plonalakščių konstrukcuijų sujungimas
Heat and fluid flow exist not only in ingots or big size welds but also in small size microplasma arc melted weld pool. Edge weld pool geometry depend from interfacial energy, direction of the fluid flows in the weld pool caused by thermocapilary convection. Thermocapilary convection is the dominant flow mechanism under downhand welding conditions....
Experimental determining of time and temperature strength parameters on which calculations of fire resistance can be bas...
The author presents results of his own experiments for determining strength parameters of steel in thermal conditions of fire on which calculations of fire resistance can be based. The author suggests the calculation of the thermal strength parameters on the basis of noncoventional tensile test in thermal conditions described by the “time-temperatu...
The equilibrium finite elements in computation of elastic structures
A problem of elastic structures stress-strain field determination is considered in this article. A theoretical background and computation algorithms of equilibrium finite element method are presented there. The different external effects are estimated, namely: load, prestressing, inicial strains and support settlements. The dual relationships (equi...
Eine Analyse von zyklischen Systemen unter Unbestimmtheitsbedingungen
This paper presents the problem of balancing specific construction processes with cyclic configuration. The processes of assembly of forming equipment in a monolithic housing building are an example of the consideration. The rules decomposition and synthesis at the production system has been used. Three examples of the loss functions are given. The...
Dual limit analysis problems with discontinuity of displacement velocities
The general dual mathematical models (static and kinematic formulations) of the limit load and rigidplastic body parameters optimization problems are formed on the basis of extremal energy principles and theory of duality. Yield conditions are controlled not only in volume of finite elements, but also at the surfaces between elements. Therefore the...
Ground compaction zone of structures and structural strength of soil/Pastato pagraindo deformacijų zona ir grunto strukū...
Ground compaction zone develops under action of structure foundation. Boundaries of it could be limited by a distance at which pressure from structure action is equal to structural strength of the soil. The structural strength of soil can be expressed by the parameters of shear resistance—the cohesion and the angle of the internal friction. These p...
