scholarly journals Methodology of adjusting the strategy of technical systems maintenance and repair according to the results of their operation

2021 ◽  
Vol 2131 (3) ◽  
pp. 032105
Author(s):  
V Gera ◽  
R Mosyagin ◽  
E Kalmykov ◽  
V Pudikov
Keyword(s):  
Support System ◽  
Actual State ◽  
Service Availability ◽  
Maintenance And Repair ◽  
Control Actions ◽  
Functional Scheme ◽  
Systems Maintenance ◽  
Service Object ◽  
Technical Systems ◽  
Scheme Analysis

Abstract In the publication the authors solve the problem of forming the optimal volume of control actions to maintain the technical systems (TS) service availability. To achieve the desired result the analysis of the TS as a service object was carried out. As a result of the analysis the system elements with a level of reliability below the required level are assigned to a separate group for which the maintenance modes are formed later, their actual state being taken into account. Namely, the decision is made what work on these elements can perform and what forces and means of the technical support system will be required for their operation. To form a list of necessary operations, the functional scheme analysis of the TS considered is carried out, during the analysis the functional as well as degradation characteristics of the system elements are determined as well as the significance (weight) of each element in the system. The analysis of the functional scheme of the TS is performed by using the functional-topological method.

scholarly journals Maintenance service technology and analysis of operation results of electronic equipment of AC electric locomotives on the railways of the Eastern operational area

2019 ◽  
Vol 78 (3) ◽  
pp. 169-176
Author(s):  
S. A. Boginskiy ◽  
V. V. Semchenko ◽  
N. G. Shabalin
Keyword(s):  
Control System ◽  
Electronic Equipment ◽  
Technical Diagnostics ◽  
Electric Locomotive ◽  
Microprocessor Control ◽  
Maintenance And Repair ◽  
Functional Scheme ◽  
Maintenance Service ◽  
Microprocessor Control System ◽  
Microprocessor Technology

The article presents the relevance of the topic associated with the introduction of technical diagnostics tools and the service system of electronic equipment for AC electric locomotives. Results of operating a microprocessor control system and diagnostics of AC electric locomotives on the Eastern operational area are presented in the form of failure statistics of elements of microprocessor technology. Structure of the technological process of servicing AC electric locomotives on the railways of the Eastern operational area is shown. Authors revealed features of building a system of locomotive maintenance points (LMP), which carry out repair and maintenance of electronic equipment for AC electric locomotives of various series. Functional scheme of the system for servicing electronic equipment for AC electric locomotives has been developed. Bench and technological equipment of the service area for the maintenance of electronic equipment is shown. The article describes development of an automated workplace (AWP) for optimization and repair of a microprocessor control system (MCS) for an electric locomotive, which was not previously in the locomotive sector. Examples of performing technological processes of repairing cassettes of MCS using AWP are given. The following conclusions were made: 1. Statistics of MCS failures and malfunctions of their cells on AC electric locomotives at the Eastern operational area for the period from 2016 to 2018 (LMP of station Tayshet and Karymskaya) shows that the number of failures of MCS decreased by 30 % and the number of malfunctioning MCS cells, received for repair, decreased by 45 %. 2. Automated workplaces created in the JSC “DTsV of the Krasnoyarskaya Railway” for optimizing and repairing the local government of AC electric locomotive made it possible to optimize repairs and create an automated process for the maintenance and repair of electronic equipment for electric locomotives. 3. Developed by specialists of the JSC “DTsV of the Krasnoyarskaya Railway” together with the employees of the LLC “Lokotech-Service” technological model of full service maintenance and repair of electronic equipment for AC electric locomotives on the railways of the Eastern operational area was implemented and well proved itself in the work of the LMP.

Maintenance and Repair Support System (MARSS)

2002 ◽  
Author(s):  
C.D. Bosco ◽  
Li Pi Su ◽  
H. Girolamo ◽  
M. Darty
Keyword(s):  
Support System ◽  
Maintenance And Repair

THE METHOD OF OBJECT MODELING IN THE DEVELOPMENT OF PATENTABLE DESIGNS OF TRACTION DRIVE MECHANISMS

2021 ◽  
Vol 2021 (3-4) ◽  
pp. 4-13
Author(s):  
Vladimir Vorob'ev ◽  
Aleksandr Pugachev ◽  
Stepan Kopylov ◽  
Evgeniy Nikolaev
Keyword(s):  
Electric Motor ◽  
Analytical Methods ◽  
Modeling Method ◽  
Rolling Stock ◽  
Object Model ◽  
Object Modeling ◽  
Typical Structure ◽  
Traction Drive ◽  
Maintenance And Repair ◽  
Technical Systems

Work objective is to develop a patentable design of locomotive traction drive mechanisms using the example of a suspension unit. Research methods: object modeling method, analytical methods for calculating dynamics of rolling stock. Research results and novelty: the design of the railway electric motor suspension unit, which will reduce costs in the course of maintenance and repair of a locomotive with a solid gear by increasing the reliability of the suspension unit parts, eliminating their wear, has been developed; a compensation coupling device has been devised. We will synthesize the object model of a technical system based on the identification of its typical structure by classifying technical systems. Conclusion: the application of the object modeling method together with the object model allows avoiding errors in the development of new designs of technical objects based on existing comparables and eliminates defects of the selected prototype. The use of the object modeling method makes it possible to synthesize patentable designs of the locomotive underframe mechanisms.

scholarly journals Multicriteria Decision Support System for Selecting the Structural and Functional Scheme of a Biogas Plant in the Agro-Industrial Complex

2021 ◽  
Vol 285 ◽  
pp. 04010
Author(s):  
Valery Lubentsov ◽  
Ekaterina Ozhogova ◽  
Elena Lubentsova ◽  
Evgeniy Shakhray
Keyword(s):  
Decision Support ◽  
Decision Support System ◽  
Support System ◽  
Multicriteria Analysis ◽  
Point Of View ◽  
Biogas Plant ◽  
Paired Comparisons ◽  
Industrial Complex ◽  
Functional Scheme ◽  
High Consistency

The variants of structural and functional schemes of biogas plants (BP) were investigated to obtain biogas and fertilizers based on the processing of solid organic waste in the agro-industrial complex (AIC). Based on the results of the study of biogas technologies, criteria are proposed for determining the best layout from the expert’s point of view. The systematization of options is given and alternatives are obtained. The method of multicriteria analysis of options based on fuzzy sets was used as a decision-making method. The use of the decision support system to select the best variant of the structural and functional scheme of the biogas plant predetermined the formation of a matrix of paired comparisons of dimension 5x5. To ensure high consistency of preferences associated with the procedure for filling in the matrices of paired comparisons of alternatives according to criteria, the method developed by us has been applied. This reduces the number of inquiries to the decision-maker. The selected structural and functional scheme meets the requirements for the development of typical automation solutions, which contributes to the replication of control systems for the same type of plants.

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