When designing engineering structures, the efficiency of the engineer’s work is important. The cooperation between individual programs in BIM technology is very important in this aspect, because it significantly speeds up the work and, as a result, the design process is less time-consuming. In the process of designing steel structures, the first stage is the selection of an appropriate structural solution, then numerical calculations of the model together with all assigned load cases and dimensioning of individual elements of the structure in terms of the ultimate and serviceability limit state. After selecting the appropriate sections, you can start working on the detailed drawings of a given structure. When performing numerical calculations and drawings, at least two programs should be used. The article presents the cooperation between the Dlubal RFEM numerical calculation program and the Tekla Structures building structure modeling program on the example of a steel structure floor design.

Keywords: BIM, Dlubal RFEM, Tekla Structures, steel structures, direct import, engineering structures

The article discusses the causes of the emergence of digital noise in video sequence images. It is proposed to evaluate the effectiveness of noise suppression methods by measuring the peak signal-to-noise ratio. A method is proposed for preliminary improvement of the quality of images in a video sequence for further processing in order to search and recognize objects on a complex background. The originality of the method consists in using the analysis of the contribution coefficient of single images in a video sequence. The results of experiments with images from the USC-SIPI database are presented. The results obtained are not inferior to their counterparts, and surpass them in some indicators.

Keywords: video sequence processing, video enhancement, object recognition on a complex background

In this work, the impact of the impact of the loads on the work of the optical system of landing the aircraft on the deck of the ship is studied. The influence of a shock pulse from the landing gear of an airplane during interaction with the deck is considered. Also the deviation of the light beams of the optical landing system and the making of constructive solutions for ensuring the required values ​​of the beam deflection are estimated.

Keywords: impact pulse, optical landing system, automation of optical systems design, reduction of light rays deflection