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Reich D.,Prometei | Stark R.,Fraunhofer Institute for Production Systems and Design Technology
AutomotiveUI 2014 - 6th International Conference on Automotive User Interfaces and Interactive Vehicular Applications, in Cooperation with ACM SIGCHI - Adjunct Proceedings | Year: 2014

Highly realistic driving environments will help to provide reliable and valid findings to ensure safety and usability of advanced in-car cockpits. Nevertheless, real car driving studies are difficult to standardize, more time consuming and expensive. Thus, one economizing suggestion is the implementation of immersive driving environments within simulator studies to provide users with a more realistic awareness of the situation. This paper discusses research investigating the influence of immersive driving environments during dual-tasks regarding eye movements. The results of the driving simulator study (N=20) suggest more visual availability for driving when high immersive driving environments were applied to the text entry task. © 2014 ACM.


Ivanov A.Y.,ZAO Izhorskii Trubnyi Zavod | Sulyagin R.V.,ZAO Izhorskii Trubnyi Zavod | Orlov V.V.,Prometei | Kruglova A.A.,Prometei
Steel in Translation | Year: 2011

The phase transformations of austenite in the thermal-influence zone of pipe steel (strength classes X80, X90, and K70) are studied by plotting thermokinematic diagrams that simulate the thermal cycle of welding. The influence of the maximum temperature and cooling rate on the structure and properties of sections in the thermal-influence zone is established. The risk of cold crack formation and softening in the steel is assessed by means of the dependence of the hardness on the cooling rate. The results are confirmed by the correlation of the hardness and the type of structural components in laboratory and industrial samples. © 2011 Allerton Press, Inc.


Savenkov G.G.,Production Engineering Office Tekhnolog | Barakhtin B.K.,Prometei | Rudometkin K.A.,OAO Vodtranspribor
Technical Physics | Year: 2015

Modifications in the structural-mechanical state of a copper sheath deformed under the conditions of formation and extension of an axisymmetric cumulative jet are studied using optical metallography and electron metallography with the assistance of multifractal analysis. © 2015, Pleiades Publishing, Ltd.


Rybin V.V.,Saint Petersburg State Polytechnic University | Zolotorevskii N.Y.,Saint Petersburg State Polytechnic University | Ushanova E.A.,Prometei
Physics of Metals and Metallography | Year: 2015

The mechanism of the formation of a fragmented structure has been studied using the EBSD analysis on the example of the microstructure of the zone of the welding joint obtained by explosive welding of copper sheets. The process of the structure formation included, besides the formation of boundaries of deformation origin, also deformation twinning and dynamic recrystallization. A method of a computer analysis of the distribution of interfragment misorientations, which makes it possible to determine the partial contributions of different mechanisms of fragmentation and to estimate the parameters of the distribution, is suggested. Based on the analysis performed, it is recommended to select metals inclined to deformation twinning to obtain ultrafine-grained materials. © 2015, Pleiades Publishing, Ltd.


Rybin V.V.,Saint Petersburg State Polytechnic University | Ushanova E.A.,Prometei | Zolotorevskii N.Y.,Saint Petersburg State Polytechnic University
Technical Physics | Year: 2013

Structures induced by deformation in the narrow zone of a contact between two copper plates that is prepared by explosive welding are systematically investigated at the micro-, meso-, and macrolevels. Plastic jets, regions of metal plastic flow anomalous localization, are discovered in areas adjacent to the contact surface. The defect structure of the plastic jets is examined by transmission electron microscopy and electron backscatter diffraction. It is shown that at the mesolevel the plastic jets are regions with a heavily fragmented structure. The statistics of the fragment distribution over misorientations and transverse sizes is studied. © 2013 Pleiades Publishing, Ltd.


Dittrich E.,Prometei | Brandenburg S.,TU Berlin | Beckmann-Dobrev B.,TU Berlin
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2013

Virtual prototypes are essential for engineers to understand the complex structures and arrangements of mechatronic products like automobiles. Currently, Virtual Environments (VE) are used for visual analysis and interaction with virtual models. In the next years more supplementary information will be integrated in the VE, completing the 3D-model. This includes names of single parts, corresponding materials or masses. However, up till now there is little explicit research on the psychological effects of additional text visualization in VE's. For example it unclear if it is possible to visualize the textual information like on paper prints or on 2D displays. The current study empirically compares these types of different output mediums to advise rules for visualization of text in 3D Virtual Environments. Results show, that textual information has to be slightly enlarged for the 3D Virtual Environment. In addition, subjects performed better in conditions with projected textual information compared to real text. © 2013 Springer-Verlag Berlin Heidelberg.


Khlusova E.I.,Prometei | Ryabov V.V.,Prometei
Steel in Translation | Year: 2013

The uniform elongation of high-strength steel (yield point 500-1400 MPa), with ferrite-bainite, bainite-martensite, and martensite structure, is studied as a function of the production technology (thermomechanical treatment, quenching from furnace temperatures and tempering, quenching from rolling temperatures and tempering). Specifically, the influence of the steel's phase composition, the size of the bainite crystals, the martensite content, and the carbide morphology on its ease of cold deformation is considered. © 2013 Allerton Press, Inc.


Mazeeva A.K.,Prometei | Kuznetsov P.A.,Prometei
Physics of Metals and Metallography | Year: 2016

The causes of changes in the magnetic properties of an amorphous Co–Ni–Fe–Cr–Si–B alloy obtained by melt spinning in the form of a thin ribbon subjected to heat treatment and subsequent action of temperatures corresponding to various conditions of its exploitation have been analyzed. We have established the regimes of heat treatment that provide for the highest values of the maximum magnetic permeability of the alloy and the shielding factor of a magnetic shield made from the alloy. We have analyzed changes in the magnetic properties, shielding properties, and total magnetization distribution in an alloy ribbon at a temperature well below the crystallization temperature. We have found the temperature ranges that determine the practical application of this alloy. © 2016, Pleiades Publishing, Ltd.


Reich D.,Prometei | Dittrich E.,Prometei
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2013

Human-cockpit interaction is an innovative and promising field of automotive research. Indeed, automakers need to ensure safety and user satisfaction for their cockpit development concepts, if driving and interacting occurs simultaneously. One suggested approach is to evaluate simple cockpit prototypes within virtual test environments. Hybrid prototyping allows a more realistic experience with the prototype in early stages of development. With our research study we focused on important basic parameters within hybrid test environments (e.g. shutter glasses and virtual projected car model) and evaluated their potential of influence. There are no hints to assume that shutter glasses influence user behaviour. Interestingly, we found significant faster task completion times within a virtual projected car model, which indicate that immersive environments increase user performances. In summary, we can suggest hybrid prototyping within immersive test environments for evaluating human-cockpit interactions. © 2013 Springer-Verlag Berlin Heidelberg.


Il'In A.V.,Prometei | Filin V.Yu.,Prometei
Inorganic Materials | Year: 2014

A new approach for prediction of cleavage fracture of the material in contrast to the standard local criteria of fracture in microvolume and the "weakest link" concept was proposed. It is based on the application of the energy criterion of fracture, investigation of the prefracture zone, and results of the X-ray structure analysis of the cleavage fracture surface. The possibility of using such an approach for the evaluation of the influence of the scale effect on the measurable crack resistance was shown. © 2014 Pleiades Publishing, Ltd.

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