scholarly journals Influence of technical condition parameters on the period of safe operation of technological pipelines

2020 ◽  
Vol 1515 ◽  
pp. 032063
Author(s):  
P A Kulakov ◽  
A V Rubtsov ◽  
V G Afanasenko ◽  
Z R Mukhametzyanov ◽  
E V Khasbutdinova
2021 ◽  
pp. 49-56
Author(s):  
Stanislav S. Khabarov ◽  
Alexander S. Komshin

Problems of ensuring the safe operation of an aircraft from the point of view of the fatigue life of its structure are considered. The relevance of the creation and implementation of diagnostic systems for monitoring the technical condition of structures of complex technical objects is shown on the example of a helicopter. An original approach to the creation and implementation of complex systems for diagnostics and monitoring of the technical condition of complex technical objects is presented, combining fiber-optic measuring technology and phase-chronometric method. It is shown that the use of monitoring and diagnostic systems ensures the transition to operation based on the actual technical condition. The proposed approach makes it possible to increase the time between overhaul intervals and reduce excess reserves in terms of the reliability factors of structures, which increases the flight performance of aircraft.


2019 ◽  
Vol 97 ◽  
pp. 04019 ◽  
Author(s):  
Elena Gryaznova

It is possible to ensure safety of the entire construction process as well as safe operation of buildings and structures in future by timely implementation of geotechnical monitoring. Geotechnical monitoring of buildings and structures is a complex research of “soil base – foundation – above ground structures of a building”. Geotechnical monitoring studies behaviour of buildings and structures during construction and operation and, safety measures to prevent hazardous situations in future are undertaken upon analysis of acquired results. Geotechnical monitoring comprises combination of works, including field observation for structures’ behaviour of a building under construction or renovation, its foundation, including soil body surrounding the structure under construction, and field observation for structures of surrounding buildings. Such monitoring allows us to timely detect and prevent non-reversible processes that occur in “soil base – foundation – above ground structures of a building” system. Considering task in hand to ensure safety and security of buildings and structures, list of geotechnical monitoring works can be divided into following blocks: object monitoring; hydrogeological monitoring; ecological monitoring and computational and analytical block which makes assessment of current geotechnical situation on the construction object and develops relevant recommendation for further continuation of works. This article looks into special aspects of multiyear (2005 – 2019) geotechnical monitoring for deformational behaviour of buildings under operation, open parking spaces No.1 and No.2, located in area of effect from construction of railway connecting Vnukovo-1 airport and Kievskiy train station in Moscow and in the area of effect of new Vnukovo-1 airport construction. Article looks into tasks to ensure regular operation of existing buildings and monitoring of hazardous situations and their origin caused by construction works or poor technical condition of monitored objects. Particular to renovation of Vnukovo-1 airport, that started in 2005 is the fact that during construction it was necessary to ensure operation of a number of maintained buildings. Among them are open parking spaces No.1 and No.2.


Author(s):  
Boris A. Lievin ◽  
Boris L. Nedorchuk

The article assesses trends of development of devices for control and diagnostics of railway tracks, highlights the growing importance of advanced technologies that make use of more sophisticated methods of remote monitoring of the technical condition and ensure safe operation of railroad bed. In particular, the authors analyze in detail the results of their own developments, with an emphasis on options for optical control with the use of aircraft and video recording, significantly expanding the possibilities of monitoring and quality of observations, and at the same time forecast (considering experimental data and economic factors) promising areas of engineering research.


Author(s):  
V. V. Sharmanov ◽  
◽  
A. E. Mamaev ◽  
T. L. Simankina ◽  
N. V. Braila ◽  
...  

The article presents a method for calculating the technical condition of the tower crane on the basis of integrated monitoring of the mechanisms of the lifting structure using a digital model.The use of information technologies allows to take a new look at the issues of ensuring the safe operation of lifting mechanisms. Due to the application of these technologies, a qualitatively new method of calculating the technical condition of tower cranes on the basis of an integral-differential approach, which takes into account the score of defects, according to the regulatory documentation, is proposed. The concept of the technical condition index of the tower crane (TCItc), as an integral indicator reflecting the general condition of the nodes and mechanisms of the crane, is introduced. The use of information technologies to calculate the technical condition index of tower cranes makes it possible to integrate the geometric parameters of the tower crane and a mathematical algorithm for their evaluation, which results in a quantitative assessment of defects formed during the operation of tower cranes.


2019 ◽  
Vol 2019 (2) ◽  
pp. 37-42
Author(s):  
Наталья Александровна Дубинина ◽  
Nataliya Aleksandrovna Dubinina ◽  
Дмитрий Винярский ◽  
Dmitry Viktorovich Vinyarsky

The paper focuses on the development of small and medium-sized deposits accompanied by implementing the investment design solutions, new expensive equipment and technologies. Further progressive development of the oil and gas complex depends on the implementation of measures supporting the operability of oil pipeline systems, the modernization and reconstruction of oil and gas complex enterprises. The main reasons for decreasing economic efficiency of the oil and gas complex are the outdated oil production technologies, as well as the obsolete drilling equipment. To make timely decisions and take measures to restore and improve equipment performance, a comprehensive assessment of the technical condition of the equipment is required, including not only an assessment of the safe operation of equipment and the possibility of extending service life, but also evaluating of the technological condition, the possibility and necessity of its restoration in terms of evaluating the efficient operation of the equipment.


2021 ◽  
pp. 32-38
Author(s):  
S. V. Reznichenko ◽  
E. S. Chernositova ◽  
N. B. Samorodskaya ◽  
R. U. Samorodsky

The necessity of monitoring the technical condition of shelving structures to assess the reliability of their operation is justified. An important element of this process is the technical inspection procedure aimed at preventing accidents and minimizing the operational risks of shelving equipment. The procedure for complete technical inspection of shelving structures is described and its scheme is drawn up. There are 3 main stages of the procedure: 1) checking the organization and maintenance of shelving equipment; 2) inspection of shelving equipment and confirmation of its safe operation; 3) processing of results and their registration in the form of a unified report. The scheme illustrates the content of work at each stage and can be used both by experts of specialized organizations authorized to conduct technical inspection of shelving structures, and by warehouse employees to analyze and improve the process of monitoring the condition of shelving equipment. The requirements of the current regulatory documents regulating the procedure for full technical inspection of shelving structures are analyzed. Examples of defects and inconsistencies that can be identified in the process of technical inspection of shelving structures are given. Detection of some of them leads to a ban on the operation of this type of equipment. The sequence of the full technical inspection procedure proposed by the authors can be used by organizations performing such types of work to improve the quality of their implementation, as well as to standardize this process. Application of the results of analysis and systematization of requirements for the full technical inspection procedure will improve reliability of the results of inspections of the technical condition of shelving structures.


2019 ◽  
Vol 105 ◽  
pp. 01025
Author(s):  
Tatiana Cherkasova ◽  
Yelizaveta Cherkasova ◽  
Anastasia Tikhomirova ◽  
Aleksandr Nevedrov

The issue of reliable and safe operation of equipment, the use of technical devices and materials, the repair and renewal of fixed production assets is relevant. Corrosion processes have a very negative impact on the technical condition and safe operation of equipment, buildings and structures. The reasons for the increasing damage to the fixed production assets are their physical wear, poor quality of rolled stock, reinforced concrete and polymers, non-compliance with processing technology, neglect of the requirements of technical and regulatory documentation. The measures of increasing the service life of fixed production assets through the use of polymer-silicate protective coatings are proposed in this paper. As a result of studying the compositions with various contents of water-repellent and plasticizing additives, it was found that if the content of each of them is 3%, the duration of setting of the polymeric silicate coating increases 1.5 times. At the same time, mechanical strength and setting time remain the same. Also, an increase in the setting time is ensured by the prolonged high-speed mixing of the polymer-silicate mixture.


2021 ◽  
Vol 11 (1) ◽  
pp. 4-17
Author(s):  
Vassily N. ALEKSEENKO ◽  
Oksana B. ZHILENKO

The issue of carrying out repair and restoration works of the cultural heritage object of the XIX century “Building of the Noble Assembly” in Simferopol and its adaptation to a new functional purpose with the preservation of authenticity is considered. As a rule, the original purpose of the building loses its relevance, the adaptation of the object to new functions is sometimes the only way to preserve the object of cultural heritage. Such objects need an integrated approach not only in assessing the technical condition, ensuring a suffi cient level of safe operation, but also in complex microclimatic studies to ensure a comfortable future use. Adaptation of a cultural heritage site with underestimation of microclimatic parameters leads to a confl ict of authenticity and comfort. The article presents the results of a survey of the 19th century cultural heritage site “The Building of the Noble Assembly” in Simferopol with an assessment of its technical condition. Recommendations have been developed for strengthening the load-bearing structures of the building, allowing for further safe operation, while maintaining its authenticity.


2021 ◽  
Vol 1201 (1) ◽  
pp. 012048
Author(s):  
V V Pshenin ◽  
A V Borisov ◽  
S O Menshikov

Abstract Periodic monitoring of the technical condition of metal constructions and pipelines at an altitude is an important part of their safe operation. For this purpose, as a rule, drones or methods of industrial climbing are used. In this research we propose a method of robotic inspection of such structures, which will substantially reduce the costs of maintenance work at an altitude and increase their level of safety. The main scientific interest is the creation of a universal kinematics adjusted to different obstacles not only on the pipelines but also on the metal constructions. In the course of the works there was conducted a fundamentally different experience in the mounting of supporting structures and metal constructions. The received knowledge was systematized in an album of the obstacles, on the basis of which the kinematics of the robotic device was modified.


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