scholarly journals Digital technologies used in technical diagnostics, assessment of technical condition, maintenance and repair of mining machines and equipment

2021 ◽  
Vol 2052 (1) ◽  
pp. 012016
Author(s):  
B L Gericke ◽  
A E Sushko ◽  
P B Gericke ◽  
A B Efremenkov

Abstract The article deals with the organization of a single technological space for technical diagnostics, maintenance, and repair of mining equipment. The digital technology that unites all services related to production, diagnostics of technical condition, maintenance and repair of mining equipment is based on the SAFE PLANT software package, which provides globality, scalability, versatility, integrability, modularity, distribution, and functionality. The article reflects the results of the implementation of the system at an industrial enterprise.

Author(s):  
V. VOROPAI

The purpose of the work is to formulate the problem of technical diagnostics of tank cars. Research methods. Methods of formal logic were used methods of the theory of reliability and probability were used to describe the stages of solving the problem. Results. A study of a large array of data on the performance indicators of tank cars for the transportation of liquefied gases of the fleet of a chemical industry enterprise in Ukraine was carried out. The results of technical inspection of tank cars were obtained. A hypothesis has been formed about the possibility of increasing the resource of tank cars of an industrial park for their further operation. A proposal was put forward to consider the last stage of the life cycle as the stage "Life cycle renewal and recycling", which is not defined in Statement Standart. It should in an alternative form represent the stages of "utilization", "modernization", "modification" and "recycling", this will correspond to modern technologies on the scale of the global management of any resources. The research task was formulated, which determines the main task - the possibility of increasing the resource of tank cars of the operating fleet of an industrial enterprise using the methods of technical diagnostics. Practical significance. The solution to the task of determining the technical condition of tank cars will allow an industrial enterprise to reasonably operate the rolling stock during the forecast period.


2020 ◽  
Vol 13 (2) ◽  
pp. 4-11
Author(s):  
Natal'ya Grebennikova ◽  
Pavel Kuprienko ◽  
S. Nikolenko ◽  
Svetlana Sazonova

In carrying out research on the technical condition of brick buildings, there is a need to study the strength of load-bearing walls. The paper presents the results of determining the strength of silicate brick by a non-destructive diagnostic method, using the ONIX-2.6 shock impulse control device of bricks. Calculation results are presented to determine the cause of cracking in brick walls. Verification calculations of building constructions were performed by the finite element method using the NormFEM application of the licensed version of the NormCAD software package.


Author(s):  
Galina Kashevarova ◽  
Anastasia Semina ◽  
Svetlana Maksimova

The intelligent and digital technologies implementation into the civil engineer expert activities is able to provide alternative solutions to different qualifications specialists. This will increase the speed of data processing and the reliability of the expert opinion on the technical condition of the operated construction objects as well as will allow assessing their real residual resource for making a decision on the possibility of further exploitation. The ontology and the original technology for the main system components determination are necessary to achieve the goal (the confinement model) used for the structural and functional analysis of the knowledge system. The entire technologies set for the architectural and construction objects (digital documentation, scan results, thermal imager data, non-destructive survey methods data), data about structure’s defects and damage, appropriate software as well as intelligent technologies (fuzzy logic, neural networks) are used for more thoroughly diagnose certain construction parts and transmit digital information to determine the technical condition category. Also, this data set can be used for following situations: a control of the dynamics of changes in the technical state of a construction object, an improvement the accuracy of determining the scope of repair work, an enhancement the quality of project documentation, methods for assessing the quality of restoration work and measures for the conservation of architectural monuments, etc.


Author(s):  
Aleksey S. Dorokhov ◽  
Aleksandr V. Denisov ◽  
Aleksey A. Solomashkin ◽  
Valeriy S. Gerasimov

Modern machines are subject to progressive wear that occurs at different rates, which leads to unpredictable failures that reduce the reliability and durability of machines. The strategy of maintenance and repair is aimed at eliminating these problems. (Research purpose) The research purpose is in analyzing the basic principles of the strategy of maintenance and repair of agricultural machinery in order to ensure control of the technical condition of machine parts. (Materials and methods) When resource diagnostics is used, , the allowable value of the parameter is set in advance for a part . This value is the tolerance that corresponds to a certain wear rate of the part. The tolerance is set based on the condition that if the current value of the controlled resource parameter during the next diagnosis is less than the set value, then such a part at the current value of the wear rate can be finalized until the next inter-control check. Taking into account the wear rate of the same type of parts from the group when determining the allowable wear during their resource diagnostics becomes an urgent task. (Results and discussions) As a result of research, the article presents "Methodology for determining the main indicators of reliability of parts of agricultural machines with different wear rates" and "Methodology for determining the tolerance system of parts of agricultural machines with different wear rates". (Conclusions) The article presents the tolerance system that reduces the probability of failure of machine parts in operation. During resource diagnostics, those parts whose resource parameters exceed the tolerance are rejected.


2021 ◽  
Vol 13 (12) ◽  
pp. 6612
Author(s):  
Peter Jones ◽  
Martin Wynn

The increasingly stellar attraction of the digital technologies and the growing, though not universal, consensus of the need to build a sustainable future, are two powerful trends within society. The aim of this article is to offer an exploratory review of how the leading companies within the digital transformation market have addressed sustainable development. As such, the article’s originality and value lie in offering a review of current corporate thinking within that market. The study adopts an inductive, qualitative approach based on an examination of published company reports, and identifies six major sustainability themes being actively promoted and supported. The article concludes that the current sustainability objectives of the technology companies are driven as much by commercial reality as any altruistic motives, and that support and promotion of the circular economy may offer the best opportunity for digital technologies to meaningfully impact sustainable development.


Author(s):  
Zhuo Zhao ◽  
Yangmyung Ma ◽  
Adeel Mushtaq ◽  
Abdul M. Azam Rajper ◽  
Mahmoud Shehab ◽  
...  

Abstract Many countries have enacted a quick response to the unexpected COVID-19 pandemic by utilizing existing technologies. For example, robotics, artificial intelligence, and digital technology have been deployed in hospitals and public areas for maintaining social distancing, reducing person-to-person contact, enabling rapid diagnosis, tracking virus spread, and providing sanitation. In this paper, 163 news articles and scientific reports on COVID-19-related technology adoption were screened, shortlisted, categorized by application scenario, and reviewed for functionality. Technologies related to robots, artificial intelligence, and digital technology were selected from the pool of candidates, yielding a total of 50 applications for review. Each case was analyzed for its engineering characteristics and potential impact on the COVID-19 pandemic. Finally, challenges and future directions regarding the response to this pandemic and future pandemics were summarized and discussed.


2020 ◽  
Vol 72 (12) ◽  
pp. 33-33
Author(s):  
Chris Carpenter

The final afternoon of the 2020 ATCE saw a wide-ranging virtual special session that covered an important but often overlooked facet of the unfolding digitalization revolution. While the rising wave of digital technology usually has been associated with production optimization and cost savings, panelists emphasized that it can also positively influence the global perception of the industry and enhance the lives of its employees. Chaired by Weatherford’s Dimitrios Pirovolou and moderated by John Clegg, J.M. Clegg Ltd., the session, “The Impact of Digital Technologies on Upstream Operations To Improve Stakeholder Perception, Business Models, and Work-Life Balance,” highlighted expertise taken from professionals across the industry. Panelists included petroleum engineering professor Linda Battalora and graduate research assistant Kirt McKenna, both from the Colorado School of Mines; former SPE President Darcy Spady of Carbon Connect International; and Dirk McDermott of Altira Group, an industry-centered venture-capital company. Battalora described the complex ways in which digital technology and the goal of sustainability might interact, highlighting recent SPE and other industry initiatives such as the GAIA Sustainability Program and reviewing the United Nations Sustainable Development Goals (SDGs). McKenna, representing the perspective of the Millennial generation, described the importance of “agile development,” in which the industry uses new techniques not only to improve production but also to manage its employees in a way that heightens engagement while reducing greenhouse-gas emissions. Addressing the fact that greater commitment will be required to remove the “tougher two-thirds” of the world’s hydrocarbons that remain unexploited, Spady explained that digital sophistication will allow heightened productivity for professionals without a sacrifice in quality of life. Finally, McDermott stressed the importance of acknowledging that the industry often has not rewarded shareholders adequately, but pointed to growing digital components of oil and gas portfolios as an encouraging sign. After the initial presentations, Clegg moderated a discussion of questions sourced from the virtual audience. While the questions spanned a range of concerns, three central themes included the pursuit of sustainability, with an emphasis on carbon capture; the shape that future work environments might take; and how digital technologies power industry innovation and thus affect public perception. In addressing the first of these, Battalora identified major projects involving society-wide stakeholder involvement in pursuit of a regenerative “circular economy” model, such as Scotland’s Zero Waste Plan, while McKenna cited the positives of CO2-injection approaches, which he said would involve “partnering with the world” to achieve both economic and sustainability goals. While recognizing the importance of the UN SDGs in providing a global template for sustainability, McDermott said that the industry must address the fact that many investors fear rigid guidelines, which to them can represent limitations for growth or worse.


Author(s):  
Jama Shelton ◽  
Kel Kroehle ◽  
Emilie K. Clark ◽  
Kristie Seelman ◽  
SJ Dodd

The enforcement of the gender binary is a root cause of gender-based violence (GBV) for trans people. Disrupting GBV requires that we ensure that ‘gender’ is not presumed synonymous with White cisgender womanhood. Transfeminists suggest that attaining gender equity requires confronting all forms of oppression that police people and their bodies, including White supremacy, colonialism and capitalism (Silva and Ornat, 2016; Simpkins, 2016). Part of this project, we argue, includes confronting the structures of GBV embedded within digital technologies that are increasingly part of our everyday lives. Informed by transfeminist theory (Koyama, 2003; Stryker and Bettcher, 2016; Simpkins, 2016; Weerawardhana, 2018), we interrogate the ways in which digital technologies naturalise and reinforce GBV against bodies marked as divergent. We examine the subtler ways that digital technology can fortify binary gender as a mechanism of power and control. We highlight how gendered forms of data violence cannot be disentangled from digital technologies that surveil, police or punish on the basis of race, nationhood and citizenship, particularly in relation to predictive policing practices. We conclude with recommendations to guide technological development to reduce the violence enacted upon trans people and those whose gender presentations transgress society’s normative criteria for what constitutes a compliant (read: appropriately gendered) citizen.<br /><br />Key messages<br /><ul><li>Violence against trans people is inherently gender-based.</li><br /><li>A root cause of gender-based violence against trans people is the strict reinforcement of the gender binary.</li><br /><li>Digital technology and predictive policing can fortify binary gender as a mechanism of power and control.</li><br /><li>Designers of digital technologies and the policymakers regulating surveillance capitalism must interrogate the ways in which their work upholds the gender binary and gender-based violence against trans people.</li></ul>


2021 ◽  
pp. 41-45
Author(s):  

The hydraulic drive of a construction machine is a complex dynamic system that is subjected to many dynamic loads of a variable nature and operates under conditions of variable external influences caused by various factors. During operation, these loads cause failure of the hydraulic transmission elements. To prevent these malfunctions, technical diagnostics should be applied by determining their current technical condition and remaining service life. The article assesses the working condition of hydraulic cylinders using a mathematical model. Using matlab/simulink software to simulate the hydraulic cylinder and hydraulic piston speed when changing the hydraulic cylinder clearance. The simulation results are presented. Keywords: diagnostic, hydraulic cylinder, simulation, development


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