Assessment of means of mechanization of construction risks using catastrophe theory

Abstract

In article questions of assessment of the risks arising in the course of design, production and operation of means of mechanization of construction using catastrophe theory are considered. In the course of operation of the machine malfunctions, suddenly defiant refusals of details gradually collect. The device of the theory of accidents allows to develop models of change of technical condition and operational properties of a details material for various service conditions. In the field of space of conditions of the system containing critical signs accident emergence conditions (refusal of a detail and an emergency) are created. Assessment of probability of emergence of refusal during a certain period of operation of the machine taking into account weight of consequences allows to establish risk level.

The influence of 3D-printing technological conditions on the performance properties of master models

“…Also, based on the literature review and previous studies, six following parameters that have the greatest impact on the quality of printed master models have been identified [13,17]:…”

“…In mechanical engineering, additive technologies can be effectively combined with casting [1,12,13]. Casting is used for the production of both large and small parts.…”

Triad model: simulation - functional tensometry - information database in the assessment of the reliability of technological machines

“…The structurally measuring system includes an intelligent sensor, which consists of a primary converter (tenzomost) and a measuring module ZET 7111 Tensometer-CAN [23].…”

Methods for calculating the reliability and energy efficiency in the construction of real estate

“…The conditions include the range, speed and frequency of movement, labour and material and technical resources (concentration of power), accessibility, etc. [12].…”

“…In the second stage, the movement and concentration of resources are not associated with the operation of the system of processes, but with an additional preparatory period of its functioning. Therefore, in the conditions of influence of different factors (mobility and uncertainty process of moving from a concentration system of units and material and technical resources), there is a need to define a part of the General Fund of the time that it takes under the influence of these factors on the movement and concentration from the "old" to "new" object and form the industrial and social base [12][13].…”