Modeling and accounting of strengthening zones of thin-walled steel profiles in ANSYS

The article describes the process and reflects the results of modeling a steel thin-walled sigma profile operating under axial compression in the ANSYS software. Modeling is carried out taking into account the zones of hardening of steel along the profile section. The results are analyzed and compared with the results obtained in STARK.

Identification of urban infrastructure objects using the remote satellite sensing of traffic flows on streets with irregular traffic

The article deals with the problems of determining the intensity of traffic flows on streets and roads with irregular traffic for the purposes of design, heavy repair, reconstruction and traffic management. The impossibility of using existing monitoring methods at decentralized transport facilities and algorithms for decrypting remote satellite surveillance materials predetermined the necessity of developing a mathematical model within the framework of multifactor forecasting. During the studying of significant factors, the influence of variability in the population density and the capacity of general education facilities was investigated. Identification signs of educational institutions used in the interpretation of satellite images were obtained. The polynomial dependences of the traffic intensity on the specified characteristics were developed. The carried out correlation assessment allows us to talk about the high degree of reliability of results of analytical determination of intensity on the streets with irregular traffic.

Prospects for the development of high-rise wooden housing construction in Russia on foreign experience

Wood-based building materials meet the basic requirements of environmentally friendly construction, which is becoming increasingly important in the modern world. However, until recently, they were rarely used in high-rise construction in Russia. CLT became a revolutionary technology, it has proven itself in countries such as Switzerland, Norway, the U.S. and others. In Russia, it has not yet found widespread use, and CLT-panels are in demand only at the market of individual housing construction. Nevertheless, taking into account the positive foreign experience can be an example and become an incentive for more active implementation of modern environmentally friendly materials and technologies in Russia. The aim of the article is to study the possibilities of high-rise wooden house building in Russia based on world practice.

PROSPECTS FOR THE INTRODUCTION OF BIM-TECHNOLOGIES

Building Information Modeling (BIM) has revolutionized the construction industry. Currently, it is impossible to imagine the industry without this fundamentally new approach to building design and working with documentation. The integration of design, construction, approval and monitoring processes through BIM is an effective way to improve the economic, environmental and other key performance indicators of construction companies, and thus increase their competitive advantages. However, it is too early to talk about the widespread transition of industry organizations to BIM. This article describes the advantages of information modeling technologies and the complexity of their implementation in the workflow.

TRANSPORT MODELLING APPLICATION IN ASSESSING THE EFFICIENCY OF THE TRANS-SIBERIAN RAILWAY TRANSFER BEYOND THE BORDERS OF THE CITY OF TYUMEN

The article discusses the results of simulation at the macro level of the scenario of the Trans-Siberian railway transfer outside the Tyumen. The authors give the analysis of changes in the traffic parameters calculated in the PTV VISUM program for the morning time of the day at the current moment for the option of transferring the railway from the city, and consider the options for increasing the completeness and accuracy of the modeling results for this option of infrastructure development.

THE USE OF STATISTICAL MODELING TO ASSESS THE EFFECTIVENESS OF THE APPLICATION OF ADAPTIVE CONTROL AND RECONSTRUCTION OF THE ROAD NETWORK INTERSECTIONS

The article discusses the issues and results of the use of statistical modeling (one of the types of simulation modeling, the so-called "Monte Carlo" method), to assess the effectiveness of traffic management on the example of the Timofey Charkov st. and Verkhnetarmanskaya st. intersection, located in the city of Tyumen. The results are based on the length of the vehicle queue and traffic delay time for one car in the scenario of widening the intersection’s carriageway and/or the implementation of the adaptive regulation for traffic flows. The calculations were carried out in the "SmartAdaptive+" program developed by the authors, and designed for a technical and economic assessment of the effectiveness of traffic management measures and the use of adaptive regulation and measures to change the road network nodes configuration.

RESEARCH OF THE AIR TEMPERATURE INFLUENCE ON FUEL CONSUMPTION OF A PASSENGER CAR CONVERTED TO OPERATE ON LIQUEFIED PETROLEUM GAS

Due to the rapid growth of environmental pollution from mobile sources, the part of alternative fuels use is increasing. One of these for motor vehicle is liquefied petroleum gas (LPG). This study focuses on the LPG use by Mitsubishi Lancer X passenger car in driving conditions. Based on the results of the previous studies analysis, the most significant factors affecting the change in fuel consumption by motor vehicles were identified. It was proved that the decrease in the ambient temperature from +30 to –20 °C leads to an increase in gas consumption from 11.2 to 13.6 l/100 km. In addition, at air temperatures from –20 °C and below, the gas-fueled engine is unstable.

ANALYSIS OF THE CAPABILITIES OF MOBILE AGILE SOLUTIONS FOR EFFECTIVE PROJECT ACTIVITIES

Nowadays various tools for the successful implementation of projects are used. A set of Agile, Scrum, and Kanban methodologies helps us effectively plan, evaluate, work, communicate and make decisions. Modern software containing a wide range of functionality and flexibility of interface settings helps to visualize the project progress as one of the most important tasks. The aim of the work is to find the most flexible and functional solution for the project activities of small groups. Various solutions for effective teamwork are considered. The article contains the results of a comparative analysis of the Agile tools functionality presented on the market. Result of this analytical work is a set of options for collaboration optimal solution.

INFORMATION MODELLING OF ENGINEERING NETWORKS FOR SUSTAINABLE WATER CONSUMPTION

The article based on information modelling considers one of the tasks of developing an automated solution for constructing computational schemes and specification materials for them for water supply and disposal – formation and programming of the calculation module of sustainable water consumption (construction of the computational scheme as a table).

ANALYSIS OF METHODS FOR CALCULATING SPUR GEAR FOR DEEP CONTACT STRENGTH

Spur gear is an integral part of transport and technological machines structure. To increase the load ability of the spur gear, chemical heat treatment of the working cogs surfaces is used. Spur gear with chemical heat treatment must be checked for deep contact strength. The article analyzes various methods (according to GOST 21354-87, methods using the generalized criterion of the limit state for structurally inhomogeneous material by Lebedev-Pisarenko, methods from the handbook describing reducers of power machines etc.) for calculating spur and helical gearing for deep contact strength. The author presents all necessary formulas and graphs for the implementation of each methods, and compares the calculations results of these methods with the results of experimental studies of cemented cylindrical rollers for deep contact destruction.