scholarly journals TECHNICAL CHARACTERISTICS AND WAYS OF DUMP CARS UPGRADING FOR INDUSTRIAL TRANSPORT

2021 ◽  
pp. 54-73
Author(s):  
Andrii Sulym ◽  
◽  
Andrii Strynzha ◽  
Oleksandr Borodai ◽  
Volodymyr Borodai
Keyword(s):  
Industrial Applications ◽  
Railway Transport ◽  
Design Studies ◽  
Serial Production ◽  
Domestic Production ◽  
Industrial Enterprises ◽  
Technical Requirements ◽  
Design Documentation ◽  
Design And Manufacture ◽  
New Generation

The article deals with the models of dump cars, which form the basis of a modern fleet of industrial railway transport. The design features of dump cars used for transportation and automated unloading of coal ore, soil, sand, gravel and other similar goods at domestic industrial enterprises are presented. Models of modern dump cars of domestic production for industrial railway transport, which were created and put into serial production during the last ten years, are given. The main existing requirements to design and manufacture of dump cars are determined. The results of comparative analysis of technical characteristics of dump cars of the last generation up to modern models of dump cars showed that one of the main advantages of the latter is to improve the strength and reliability of individual components and systems. The main focus of design upgrading of modern models of dump cars of domestic production for industrial railway transport is determined. The technical requirements for dump cars of the next generation, which are planned to be created and introduced into serial production in 2022-2026 for operation on the railway tracks of industrial enterprises, are proposed. Technical requirements are based on the results of the design studies of the present-day dump cars for industrial applications, review of technical and design documentation for these cars, and also the analysis of requirements and wishes of customers. The necessity for relevant research and development works of dump cars of the new generation for industrial railway transport is substantiated. The materials of the article will contribute to the construction of new models of dump cars for industrial railway transport and total upgrading of existing models, as well as improving the efficiency of their operation. Key words: dump car, maintenance interval, strength, industrial railway transport, service life.

Emerging new-generation hybrids based on covalent organic frameworks for industrial applications

2021 ◽  
Vol 45 (16) ◽  
pp. 7014-7046
Author(s):  
Shadpour Mallakpour ◽  
Elham Azadi ◽  
Chaudhery Mustansar Hussain
Keyword(s):  
Industrial Applications ◽  
Covalent Organic Frameworks ◽  
New Generation

This review highlights the advancement of COF hybrid-based materials for diverse industrial applications.

scholarly journals New Generation of Electrochemical Sensors Based on Multi-Walled Carbon Nanotubes

2018 ◽  
Vol 8 (10) ◽  
pp. 1925 ◽  
Author(s):  
Thiago Oliveira ◽  
Simone Morais
Keyword(s):  
Carbon Nanotubes ◽  
Electrochemical Sensors ◽  
Industrial Applications ◽  
Charge Transfer Resistance ◽  
Active Surface Area ◽  
Synthesis Methods ◽  
Transfer Resistance ◽  
Multi Walled Carbon Nanotubes ◽  
New Generation ◽  
Walled Carbon Nanotubes

Multi-walled carbon nanotubes (MWCNT) have provided unprecedented advances in the design of electrochemical sensors. They are composed by sp2 carbon units oriented as multiple concentric tubes of rolled-up graphene, and present remarkable active surface area, chemical inertness, high strength, and low charge-transfer resistance in both aqueous and non-aqueous solutions. MWCNT are very versatile and have been boosting the development of a new generation of electrochemical sensors with application in medicine, pharmacology, food industry, forensic chemistry, and environmental fields. This work highlights the most important synthesis methods and relevant electrochemical properties of MWCNT for the construction of electrochemical sensors, and the numerous configurations and successful applications of these devices. Thousands of studies have been attesting to the exceptional electroanalytical performance of these devices, but there are still questions in MWCNT electrochemistry that deserve more investigation, aiming to provide new outlooks and advances in this field. Additionally, MWCNT-based sensors should be further explored for real industrial applications including for on-line quality control.

Parametric Modeling and Analysis of Self-Loading Container Vehicle Based on ANSYS

2014 ◽  
Vol 620 ◽  
pp. 137-142
Author(s):  
Wen Bin Wang ◽  
Kai Cheng ◽  
Lei Cheng
Keyword(s):  
Parametric Modeling ◽  
Operating Conditions ◽  
Design Stage ◽  
Original Structure ◽  
Modeling And Analysis ◽  
Domestic Enterprise ◽  
Technical Requirements ◽  
Design Cycle ◽  
Research Achievement ◽  
New Generation

For the technical requirements of a domestic enterprise to develop a new generation of self-loading container truck products, this paper creatively puts forward a set of suitable reduction standards for special structure. Based on ANSYS and Visual Studio 2008 platform, the parametric modeling and automatic analysis of side loader container structure are achieved independently. Several operating conditions, such as stacking, self-loading and unloading etc. can be analyzed rapidly and automatically. The research achievement can be not only used for the conceptual design stage of forward design process, but also applied in the modification of the original structure, thus effectively shortening the product design cycle, reducing design cost, providing useful guidance for independent research of domestic enterprise.

Developing a new generation of sisal composite fibres for use in industrial applications

2014 ◽  
Vol 66 ◽  
pp. 287-298 ◽  
Author(s):  
A. Ramzy ◽  
D. Beermann ◽  
L. Steuernagel ◽  
D. Meiners ◽  
G. Ziegmann
Keyword(s):  
Industrial Applications ◽  
New Generation

scholarly journals BRAKING EFFICIENCY OF QUARRY TRAINS WITH SIX-BOGIES DUMP CARS OF THE INCREASED AXIAL LOAD UP TO 27.7 TF

2021 ◽  
pp. 111-126
Author(s):  
Oleksandr Safronov ◽  
◽  
Yurii Vodiannikov ◽  
Pavlo Khozia ◽  
Anton Mozheiko
Keyword(s):  
Axial Load ◽  
Railway Track ◽  
Opencast Mining ◽  
Railway Transport ◽  
Maximum Slope ◽  
Industrial Enterprises ◽  
Study Results ◽  
Dump Trucks ◽  
Braking Distance ◽  
Traction Unit

Improving the technical level of railway transport of industrial enterprises is expressed in the introduction of advanced types of traction (locomotives and electric locomotives), four and six-axle specialized cars, including self-unloading, automation and telemechanics. To increase the productivity of quarry trains at PJSC "Kryukiv Railway Car Building Plant" a six-axle dump car model 33-7141 for quarry railway transport was designed. The car is designed for transportation from quarries of open cut hard rocks, ore and other bulk and lump cargo with density (1.75-4.0) t/m3, as well as mechanized unloading on dumping sites or crushing units of opencast mining. A distinctive feature of innovative dump cars from typical ones is the increase of cargo weight by 10 t and axial load to 271.6 (27.7) kN (ts). In this regard, the issues of assessing the braking efficiency of a quarry train with innovative dump cars that meet the requirements for railway industrial transport are becoming relevant. The article presents the study results of the braking efficiency of a quarry train composition of 10 and 14 cars. Locomotive TEM7 and unit OPE1AM with one and two motor cars were considered as traction units. The maximum permissible speeds were determined in a given range of slopes of the railway track, and the maximum possible descent was set provided that the braking distance does not exceed or will be equal to 300. As a result of research, it was found that the maximum allowable deviations ranged from 34 ‰ to 38 ‰ depending on the number of cars and traction units. The speed of trains with innovative dump trucks on the site is 42 km/h. Key words: dump car, tipping wagon, maximum slope, permissible speed, braking distance, traction unit.

scholarly journals Results of comprehensive studies conducted by the Central Research Institute (VNIIZhT) and construction work of the Ministry of Railways (RZD) to increase the loading gauge of freight and passenger rolling stock on the railways of Russian Federation

2019 ◽  
Vol 78 (1) ◽  
pp. 19-26
Author(s):  
Yu. M. Lazarenko ◽  
D. N. Arshintsev ◽  
O. N. Nazarov ◽  
Yu. S. Kireeva
Keyword(s):  
Economic Effect ◽  
Central Research Institute ◽  
Rolling Stock ◽  
Central Research ◽  
Railway Transport ◽  
Passenger Cars ◽  
Railway Network ◽  
Industrial Enterprises ◽  
Railway Rolling Stock ◽  
Research Institute

The article presents the content and results of a set of studies on the scientific and methodological support for the modernization of structures and devices built according to the old loading gauge standards or its expired durability, the entire 1520 (1524) mm gauge railway network under the loading gauge standard T for rolling stock, allowing to increase axle and running loads of cars and due to this — the mass of trains, as well as solve the global problem that arose in the middle of the last century to increase the efficiency of the most important branch of Russia — railway transport. Variants of increased loading gauges were developed (Тпр for any rolling stock, Тц for tanks, Та — for electric rolling stock, Тб — for passenger cars), which were included in the GOST 9238 – 83 “Loading gauges of railway rolling stock and structure clearance” and Ministry of railways instructions (no. TsP/4425 — for clearance of structures; no. TsV/4422 — for loading gauge of the rolling stock and no. TsD/4172 — for transportation of oversized and heavy (nonstandard) freights), as well as zonal and flatcars loading gauges. Scientific and methodological studies carried out by the institute during the half-century period (mid-XX — early XXI) identified structures and devices that limit the use of rolling stock of loading standard T, its elimination during 1982 – 2005, as well as transition of industrial enterprises to the production of new freight and passenger cars of increased loading standards Тпр and Та, developed by the Institute. This identification was made on the basis of the overall classification of all railway infrastructure and access railroads of the former USSR. New regulatory framework for railway rolling stock loading gauges and structure clearance (GOST 9238 – 2013) was developed based on a global survey of actual dimensions of all structures and infrastructure devices of the 1520 (1524) mm gauge railways (area 1520). Railway Research Institute of the Ministry of Railway Transport (currently, JSC “VNIIZhT”) made scientific and methodological support for the modernization of infrastructure objects, exhausted its life span for the 100-year period of operation. Scientific and methodological support carried out by the Institute allowed the creation and operation of rolling stock with an increased loading gauge standard Тпр: for freight traffic — with increased running loads by 2 ton/m or more compared to European railways; for passenger traffic — more comfortable and 39 % more spacious double-deck compartment cars. Increasing the loading gauge of the rolling stock provides increased efficiency of rail transport by increasing productivity, reducing the required fleet of cars for the transportation of equal volumes as well as operating costs. At the same time achieved annual total economic effect amounts to 2,205 billion rubles. Introduction of the flatcar loading gauge contributes to the organization of transportation of heavy trucks by rail and, therefore, improve the environmental situation. 

scholarly journals Socio-pedagogical model of achieving new educational results in the system of secondary professional education

2018 ◽  
pp. 34-40
Author(s):  
Oksana Ivanovna Vitvar
Keyword(s):  
Professional Education ◽  
Professional Training ◽  
Qualitative Content Analysis ◽  
Federal State ◽  
Expert Assessment ◽  
Methodological Foundation ◽  
Industrial Enterprises ◽  
Educational Standard ◽  
State Educational ◽  
New Generation

The author considers the organizational and substantive bases of achieving new educational results in professional education from the standpoint of social-pedagogical approach, justifies its importance in the improvement of quality of Secondary Professional Education (SPE). The article examines the traditional and innovative (pilot) integration models of the professional training of specialists for the current job market in the system of secondary professional education, determines the key subjects of professional education, their powers and responsibility, as well as marks the pat for achieving compatibility of educational results and the requirements of modern industrial enterprises. Methodological foundation for this research is the philosophical principles of cognition – integrity, consistency, general communication, causality. Solution of the problems at hand is carried out on the basis of scientific methods of idealization, synthesis, comparative and qualitative content analysis, expert assessment. The scientific novelty lies in a consideration of possible position of assessing the new educational results in the SPE system, acceptable for educational institutions and industrial enterprises. A conclusion is made on the need for reconciliation of requirements of the Federal State Educational Standard of new generation with requirements of the professional standards to solve the problem of youth employment.

Exoskeletons – a review of industrial applications

2018 ◽  
Vol 45 (5) ◽  
pp. 585-590 ◽  
Author(s):  
Robert Bogue
Keyword(s):  
Far East ◽  
Industrial Applications ◽  
Diverse Range ◽  
Content Type ◽  
The Far East ◽  
The Usa ◽  
Financial Consequences ◽  
Industrial Injuries ◽  
New Generation ◽  
Insight Into

Purpose This paper aims to provide details of the emerging families of robotic exoskeletons that are aimed at industrial applications. Design/methodology/approach Following an introduction, this paper considers the reasons for, and benefits of, using robotic exoskeletons in industrial applications. The paper then discusses a range of products and developments and their applications. Finally, brief concluding comments are drawn. Findings Following earlier military and medical developments, recent years have seen a huge upsurge in interest in industrial robotic exoskeletons. A new generation of products are under development in the USA, the Europe and the Far East by a growing number of companies, and some have entered production. The aim of developing industrial robotic exoskeletons is to assist workers in physically demanding tasks and, thus, reduce the incidence of industrial injuries and associated financial consequences. Several applications have been reported, most notably in the Far East, across a diverse range of industries. Originality/value New families of robotic exoskeletons are being developed, and these are poised to exert a major impact on many industries and constitute a significant market opportunity. This paper provides a timely insight into these developments.

scholarly journals Assessment and Selection of Technologies for the Sustainable Development of an R&D Center

2020 ◽  
Vol 12 (23) ◽  
pp. 10087
Author(s):  
Rafael Lizarralde ◽  
Jaione Ganzarain ◽  
Mikel Zubizarreta
Keyword(s):  
Decision Making ◽  
New Technologies ◽  
Selection Process ◽  
Multiple Criteria Decision Making ◽  
Industrial Applications ◽  
The Sustainable Development ◽  
Industrial Enterprises ◽  
Decision Making Model ◽  
Selection Of

The central role of R&D centers in the advancement of technology within industrial enterprises is undeniable and clearly affects their strategies, their competitiveness and their business sustainability. R&D centers assume responsibility for technology recognition, collection, acquisition, development and transition. Among their activities, the efficient choice of emerging technologies in the Technology Management Process is becoming a real challenge. In such heterogeneous scenarios, Multiple Criteria Decision Making (MCDM) models are commonly proposed as an appropriate decision-making approach. Multiple research works address the selection of particular technologies in industrial applications, but very few references can be found related to research institutions, and R&D centers in particular. Therefore, a decision-making model is provided in this study following the MIVES multi criteria method for the assessment of one or more technologies. The model is then applied to two case studies related to the selection process of new technologies at a Spanish R&D Center specialized in manufacturing.

Tantalum Capacitor Technology Options for High Temperature and Harsh Environment Applications

2016 ◽  
Vol 2016 (HiTEC) ◽  
pp. 000299-000306
Author(s):  
Chris Reynolds
Keyword(s):  
High Temperature ◽  
Industrial Applications ◽  
Harsh Environment ◽  
Self Healing ◽  
Automotive Electronics ◽  
Hermetic Seal ◽  
Two Factors ◽  
Military Systems ◽  
Long Lifetime ◽  
New Generation

Abstract As new temperature critical applications continue to emerge, the need for components capable of enduring temperatures up to and exceeding 200°C is increasing. Advanced down-hole electronics, underhood automotive and aerospace systems rely on components delivering optimal performance while subject to extreme environmental conditions. This paper will discuss the design advances in tantalum technology that have given rise to innovative devices that provide the enabling technology for a new generation of applications. Traditionally, hermetically sealed “wet” axial tantalum capacitors (utilizing a non-solid electrolyte that promotes self-healing and long lifetime), have been used for both high bulk capacitance (to 5,600uF) and high voltage applications (to 125VDC). In recent years, this technology has been developed to meet the 200°C operational requirements of harsher environment industrial applications. For lower operating voltages (6v – 25v), SMD packages are preferred, and for several years, 200°C rated high temperature solid tantalum chip devices have been the preferred technology over “wet” tantalum for capacitances to 220uF, being smaller size, lower cost and having the combination of lower ESR and higher frequency response. More recently, hermetic SMD packaging has been developed for SMD solid tantalum capacitors. The hermetic seal enables the internal element to be operated in an inert gas environment, while offering superior resistance to moisture ingress. These two factors enable operation to 230°C, with higher capacitance (up to 330uF) and voltage (up to 63vDC) ranges. Both molded and hermetic high temperature SMD solid tantalum capacitors have been developed to be compatible with high temperature pcb or hybrid circuit assembly processes, with a range of termination finishes compatible with HMP solder, epoxy or wire bonding. Their design also harsh mechanical environment shock & vibration. This paper will discuss the evolution in materials, design and testing for each of these technologies, along with the considerations taken into account to give maximum compatibility with emerging requirements in high temperature and harsh environment applications, with emphasis on down-hole oil exploration, aerospace and military systems and underhood automotive electronics.

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