scholarly journals Justification of cooficients reqiered for correction of rates of detail needs for machine maintenance and repair

2020 ◽  
Vol 210 ◽  
pp. 08011
Author(s):  
Alexey Shisteev ◽  
Galina Buraeva ◽  
Petr Ilyin ◽  
Victoriya Kovalivnich ◽  
Sergey Agafov
Keyword(s):  
Spare Parts ◽  
Operating Conditions ◽  
Maintenance And Repair ◽  
Machine Maintenance ◽  
Tractor Equipment

When solving the problems of increasing the reliability of automotive and tractor equipment during the regular repair period, a problem of adjusting the norms of the need for spare parts appears. The lack of recommendations for their determination, depending on the operating conditions, determines the need to deepen the analysis, development and refinement of techniques in order to clarify and adjust the normalizing factors.

scholarly journals EVALUATION OF THE FEASIBILITY OF ORGANIZING INCOMING QUALITY CONTROL OF SPARE PARTS IN A MOTOR TRANSPORT ENTERPRISE

2021 ◽  
pp. 71-78
Author(s):  
E.V. Bondarenko ◽  
◽  
D.A. Dryuchin ◽  
S.V. Bulatov ◽  
◽  
...  
Keyword(s):  
Mathematical Model ◽  
Quality Control ◽  
Spare Parts ◽  
Operating Conditions ◽  
Production Cycle ◽  
Maintenance And Repair ◽  
Motor Transport ◽  
Input Quality ◽  
Vehicle Operation ◽  
Input Control

The efficiency of vehicle operation largely depends on the quality of the spare parts used in the maintenance and repair of vehicles. The significance of the factor under consideration is determined by the complex influence on the economic indicators of vehicle operation and on traffic safety indicators. One of the measures aimed at improving the efficiency of operation is the organization of input quality control of spare parts. The costs of conducting and technological complexity of the input control vary significantly for different controlled objects, the effect of its implementation is ambiguous, which determines the relevance of the task of evaluating the effectiveness and expediency of its organization. Based on the urgency of the problem, the aim of the study is to improve the efficiency of the operation of motor vehicles by determining the optimal parameters of the input quality control system for spare parts. The hypothesis is put forward that the introduction of quality control of spare parts in the production cycle of motor transport and service enterprises will increase the efficiency of vehicle operation. To achieve this goal, a mathematical model for evaluating the effectiveness of input quality control of spare parts has been developed. Based on the parameters of the developed model, the target function of the study is de-termined, and restrictions due to the operating conditions of vehicles are established. Based on the results of the analysis of the assessment of the significance of factors that determine the efficiency of transport activities, it is proposed to use the value of total costs, including the likely damage from missing a defective part, unit, or unit, as the main criterion for the effectiveness of input quality control of spare parts . On the basis of the created mathematical model, a methodology for evaluating the feasibility of organizing input quality control of spare parts used in the maintenance and repair of vehicles is developed To confirm the proposed hypothesis, the adequacy of the developed model was checked. One of the largest passenger motor transport enterprises of the city of Orenburg — CJSC «Avtokolonna 1825» was chosen as the base for the study. As a model unit, the gimbal transmission of buses of the KaVZ family is considered. It is established that the direct costs of organizing the input control of this node are compensated by the savings due to the increased reliability of vehicles. But, based on the fact that this reduces the likelihood of road accidents caused by the failure of the cardan transmission, conclusions are drawn about the feasibility of organizing input control.

scholarly journals Methods of Diagnosing of the Parts Status of the Cylinder-Piston Group of Automotive-Tractor Engines under Operating Conditions

2020 ◽  
pp. 69-72
Author(s):  
Б.С. Антропов ◽  
В.В. Гумённый ◽  
А.А. Рудаков ◽  
В.А. Генералов
Keyword(s):  
Operating Conditions ◽  
Diagnostic Methods ◽  
Technical Equipment ◽  
Labor Costs ◽  
Maintenance And Repair ◽  
Operational Conditions ◽  
Piston Group ◽  
Cylinder Piston ◽  
Tractor Equipment

Приведены методы диагностирования состояния деталей цилиндропоршневой группы (ЦПГ) двигателей для использования их непосредственно в эксплуатационных условиях автотракторной техники. Методы просты и достоверны, разработаны на основе учёта комплекса внешних проявлений неисправностей указанных деталей, с минимальным использованием диагностических приборов. Разработанные методы могут быть использованы владельцами технических средств, не имеющими производственной базы для проведения технического обслуживания и ремонта автотракторной техники. Применение разработанных методов диагностирования позволит сократить материальные и трудовые затраты при устранении неисправностей деталей ЦПГ двигателей. Methods of diagnostics of parts status of cylinder-piston group (CPG) of engines for their use directly in operational conditions of motor-and-tractor equipment are presented. The methods are simple and reliable, developed on the basis of a complex of outward appearances of these component malfunctions with minimal use of diagnostic devices. The developed methods can be used by owners of technical equipment that do not have a production base for maintenance and repair of motor-and-tractor equipment. The use of the developed diagnostic methods will reduce material and labor costs when troubleshooting the parts of the CPG engines.

scholarly journals The optimization of internal combustion engine oil change periods

2019 ◽  
Vol 26 (01) ◽  
pp. 157-162
Author(s):  
Davaasuren G ◽  
Gantulga G
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Operating Regime ◽  
Spare Parts ◽  
Operating Conditions ◽  
Engine Oil ◽  
Used Oil ◽  
Negative Effect

It is vitally important for vehicle users that are to study the operating regime that may negative effect to the operation of the engine, to reduce its effect, to maintain the engine's reliability in accordance with the specific operating conditions. Quality of lubrication is one of the main factors that are improving of reliability and operational efficiency for any machinery their spare parts. So this paper presents to optimize of oil change intervals and to determine of wear rating of spare parts by content of metal particles in the internal combustion engine used oil. Дотоод шаталтат хөдөлгүүрийн тос солих хугацааг оновчлох нь Хураангуй:  Машин ашиглагчдын хувьд тухайн хөдөлгүүрийн ажиллагаанд сөрөг нөлөө үзүүлэх  ашиглалтын горимыг судалж, түүний хор нөлөөг багасгах болон ашиглалтын өвөрмөц  нөхцөлд тохируулан хөдөлгүүрийн найдварт ажиллагааг ханган зөв, ашигтай ажиллуулах  чадвартай байх нь асар их ач холбогдолтой юм. Аливаа машин техник , тэдгээрийн агрегат,  зангилаа эд ангийн удаан эдлэхүй, найдвартай ажиллагааг хангах, ашиглалтын үр ашгийг  дээшлүүлэх гол хүчин зүйлүүдийн нэг нь тосолгооны чанар байдаг учраас дотоод шаталтат  хөдөлгүүрийн ашигласан тосон дахь металлын агууламжыг илрүүлж, эд ангийн элэгдлийн  явцыг тодорхойлон, тос солих хугацааг оновчлох асуудлыг судалгааны хүрээнд авч үзлээ.  Түлхүүр үг: Хөдөлгүүрийн ашигласан тосны шинжилгээ, металл хольц, тосны бохирдол,  тортог, элэгдлийн элементийн хязгаар 

PREDICTIVE MAINTENANCE IMPLEMENTATION OF AUTOCLAVE REACTOR AGITATOR

2021 ◽  
Vol 2 (2) ◽  
pp. 23-26
Author(s):  
Oktafianus Toding ◽  
Dayal Gustopo Setiadjit ◽  
Fuad Achmadi
Keyword(s):  
Failure Modes ◽  
Spare Parts ◽  
Machine Maintenance ◽  
Low Performance ◽  
Minor Losses ◽  
Tapioca Flour ◽  
Alternative Solutions ◽  
A Company ◽  
Machine Unavailability ◽  
Autoclave Reactor

Machines are an important factor in the industrial world to produce a product in a company. PT. XYZ is a company engaged in the food industry for sweeteners processed from tapioca flour and corn flour where, through research observations, data is obtained that there are problems that are often faced such as damage to the Agitator Autoclave machine, unavailability of spare parts ( spare parts) needed when there is a breakdown and a breakdown schedule for maintenance workers who have to work overtime. The purpose of this study is to determine the current condition of machine maintenance to reduce damage or failures, the level of machine effectiveness and provide alternative solutions to increase machine effectiveness. The research method used is quantitative using the Overall Equipment Effectiveness (OEE) method, Six Big Losses, Failure Modes and Effects Analysis. The results of the study resulted in an Overall Equipment Effectiveness (OEE) value of 75.07%. The low OEE value on the Agitator Autoclave machine is due to the low performance factor because the engine speed does not match its ideal speed and also the low idle and minor losses in the losses factor caused by frequent breakdowns. Suggestions and suggestions that can be recommended are to periodically evaluate machines and replace old machines.

Power Turbine Remaining Life Assessment

2001 ◽  
Author(s):  
Bruce deBeer ◽  
Paul Chilcott ◽  
Dave Seib
Keyword(s):  
Analytical Techniques ◽  
Spare Parts ◽  
Operating Conditions ◽  
Life Assessment ◽  
Remaining Life ◽  
Operating Cycle ◽  
Statistical Probability ◽  
Power Turbine ◽  
Remaining Life Assessment ◽  
As Stress

The design life of an industrial power turbine has traditionally been 100,000 hours or 5,000 starts, based on a specific set of assumed operating conditions. Actual operating conditions vary from site to site, and are often less severe than the initial assumptions used by the manufacturer. This is why Dresser-Rand has developed a Remaining Life Assessment program. The objective of this program is to assist operators in extending the life of expensive components, determining inspection intervals, developing component replacement schedules, and establishing a spare parts stocking program. A comprehensive remaining life assessment must take into account unit operating history, a thorough non destructive examination of the components being considered for reuse, thermal and structural analyses using current analytical techniques, and material evaluations. There is some amount of variability in the input and output for each of these steps. Defects smaller than a given size are not always detected, material test results have a statistical distribution, and each operating cycle is unique. Traditionally the expected life has been based on a predetermined set of assumptions, such as stress analyses using typical dimensions, minus three sigma fatigue and creep properties, etc. The Dresser-Rand approach accounts for these inherent variations and establishes the statistical probability of successfully extending power turbine life without failure or unplanned maintenance as a function of time.

scholarly journals Methodical approach to the provision of spare parts for buses operating in tropical African countries

2021 ◽  
Vol 341 ◽  
pp. 00071
Author(s):  
Marcien Ngendakumana ◽  
Andrey Rementsov ◽  
Victor Еgorov
Keyword(s):  
Methodological Approach ◽  
Local Features ◽  
Spare Parts ◽  
Tropical Region ◽  
African Countries ◽  
Maintenance And Repair ◽  
Methodical Approach ◽  
Transportation Company

The article shows the role and features of the operation of vehicles in the tropical region of Africa. The dependence of the reliability of the functioning of transportation company on the climate and local features of operation is noted. A methodological approach to the provision of spare parts for buses is proposed. The issues of management of spare parts reserves for the organization of maintenance and repair of buses are considered.

scholarly journals TECHNICAL DIRECTIONS OF MAINTENANCE OF WORKING CAPACITY OF ARMOURED VEHICLES OF THE NATIONAL GUARD OF UKRAINE

2021 ◽  
Vol 1 (37) ◽  
pp. 89-95
Author(s):  
I. Shasha ◽  
Keyword(s):  
National Guard ◽  
Road Transport ◽  
Operating Conditions ◽  
Repair System ◽  
System State ◽  
Working Capacity ◽  
Territorial Defence ◽  
Maintenance And Repair ◽  
Special Operations ◽  
Design And Manufacture

Maintenance of armoured vehicles in modern conditions has a significant impact on the effectiveness of combat missions. In particular, the timeliness of delivery of personnel and necessary cargo can be a critical parameter for the success of tasks in emergencies of man-made and natural origin, riots, participation in special operations for searching for and neutralizing armed criminals, eliminating illegal armed groups or performing territorial defence tasks. A complex characteristic of any technical system is its efficiency as a measure of the feasibility of solutions adapted to operating conditions. Assessing the effectiveness of armoured vehicles is associated with the need to predict performance, which directly depends on the application of modern technical areas to maintain the required level of performance. The efficiency of the system - the ability to perform its functions with a certain level of quality during the established period of operation. The efficiency of the system is determined by the set of its properties, laid down in the design and manufacture and maintained during operation. In this work, the criterion of effectiveness is to maintain the efficiency of armoured vehicles at the required level in service and combat use in a variety of road, transport and atmospheric-climatic operating conditions. Strategies and tactics for maintaining armoured vehicles performance at the required level are considered. The specificity of the operation of armoured vehicles is that it is used in different, sometimes very difficult conditions. Therefore, an individual approach is required, an adaptive maintenance and repair system state of armoured vehicles. The most expedient for armoured vehicles is a balanced combination of all levels of regulation of the systems of organization of maintenance and repair.

scholarly journals Analysis of Monthly Maintenance Performance (P1, P3, P6) Commuter Line Dipo Depok

2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Agung Purwono ◽  
Muhardono Muhardono ◽  
Azhar Hermawan Ryanto
Keyword(s):  
Human Resources ◽  
Spare Parts ◽  
Functional Training ◽  
Maintenance And Repair ◽  
Existing Problems ◽  
Maintenance Activities ◽  
Maintenance Personnel ◽  
Maintenance Performance

Monthly Maintenance Depok Commuter Line Dipo is a place of care that forms inspection, preparation, storage, maintenance, and repair of rings counted monthly with regular maintenance, where P1 (maintenance every 1 month), P3 (maintenance every 3 months), and P6 (Treatment every 6 boasts). To support Commuter Line maintenance activities, the availability of spare parts / components, quantity and quality of human resources, work equipment, inspection equipment, location, conditions and supporting facilities are sufficient to facilitate maintenance. In conducting maintenance, Depok Commuter Line Dipo Monthly Maintenance has problems, including lack of maintenance equipment and maintenance personnel in the dipo are still lacking, both in terms of quality and quantity. To overcome this problem the method used is to identify the needs of the facility based on the MI (Maintenance Instructions) as a guide in carrying out maintenance and calculate the needs of employees both in number and quality or competence that must be owned by maintenance personnel. From the results of the analysis of the existing problems it can be concluded that the completeness of maintenance facilities in the form of work equipment is still damaged such as compressors and battery changers, lifting jacks, hydraulic jacks, and monthly manure Dipo KRL Depok still needs 24 additional maintenance personnel, and there are 19 People who have not yet participated in functional training competencies. Therefore, it is necessary to add work equipment facilities and increase human resources, as well as improve the quality and quantity of human resources to improve the performance of Depok Commuter Line Dipo Monthly Maintenance

scholarly journals RECONSTRUCTION OF INFRASTRUCTURE LLC "AVTOMIR"

2017 ◽  
Vol 21 (6) ◽  
pp. 32-43 ◽  
Author(s):  
E. V. Ageev ◽  
Yu. G. Alekhin ◽  
S. A. Grаshcow ◽  
N. V. Sarigo
Keyword(s):  
Power System ◽  
Production Capacity ◽  
Operating Conditions ◽  
The Body ◽  
Rolling Stock ◽  
Economic Activities ◽  
Maintenance And Repair ◽  
The Future ◽  
Technical Maintenance

The need for the reconstruction of existing auto service enterprises is caused by changes in the structure of the rolling stock, the design of cars and the conditions of their operation, increasing the requirements for the quality of rolling stock, the design of cars and their operating conditions, increasing the quality requirements for maintenance and repair, saving fuel and energy resources and quality assurance of the environment. In our case, the need to reconstruct the autoservice company LLC "Avtomir" is associated with the need to switch to maintenance and storage of new types of rolling stock, as well as changes in the dynamics of demand for cars. In LLC Avtomir there is no possibility of rendering services related to damage to the body of the car, which reduces the ability of the organization to receive additional income, as this type of damage owners of vehicles have to eliminate at other service stations. This fact puts the company in front of the need to create a paint and body shop in the future. The purpose of this work was the development of measures to reconstruct the infrasructure of LLC "Avtomir". The main results of the technological calculation of the enterprise are as follows: - the annual workload of the technical service station is 43529 man-hour; - annual scope of works of washing, maintenance, lubrication, adjusting for setting the angles of the front wheels, adjusting brakes, maintenance and repair of the power system, electrical, tire fitting 4913; 15235.2; 2176.5; 2611.7; 3917.6; 4353; 4353; 2285 and 914 man-hour respectively; - the annual volume of works at the tire fitting site, on the maintenance and repair site of the power supply system, electrical, maintenance units is 2133; 762; 4788.2 man-hour respectively; - necessary number of production workers for maintenance and technical maintenance 29 (technological) and 35 (staff), as well as the number of auxiliary 4 and engineering - technical 5 workers; - the necessary number of posts for washing, maintenance, lubricants, technical maintenance, adjusting for setting the angles of the front wheels, adjusting for the brakes, maintenance and repair of the power system, electrical 4; 1; 1; 1; 1; 1 and 1 respectively. Analysis of production and economic activities of the enterprise allowed us to identify the objectives of the enterprise, the dynamics of its development, the state of the production and technical base. This makes it possible to identify the main shortcomings in the functioning of the organization and to implement the formulation of new tasks that need to be solved in the future. Namely, LLC "Avtomir" needs to increase production capacity, namely the addition of a diagnostic post and one more car acceptance post. In addition, there is a need to implement the washing zone, and on the vacated area to arrange a painting and drying chamber and a preparation site for painting works.

scholarly journals Classification Methods for Motor Vibration in Predictive Maintenance

2021 ◽  
Author(s):  
Christoph Kammerer ◽  
Michael Gaust ◽  
Pascal Starke ◽  
Roman Radtke ◽  
Alexander Jesser
Keyword(s):  
Spare Parts ◽  
Predictive Maintenance ◽  
Work Processes ◽  
Thermal Systems ◽  
Repair Work ◽  
Machine Maintenance ◽  
Reducing Costs ◽  
And Storage ◽  
Motor Vibration

Reducing costs is an important part in todays business. Therefore manufacturers try to reduce unnecessary work processes and storage costs. Machine maintenance is a big, complex, regular process. In addition, the spare parts required for this must be kept in stock until a machine fails. In order to avoid a production breakdown in the event of an unexpected failure, more and more manufacturers rely on predictive maintenance for their machines. This enables more precise planning of necessary maintenance and repair work, as well as a precise ordering of the spare parts required for this. A large amount of past as well as current information is required to create such a predictive forecast about machines. With the classification of motors based on vibration, this paper deals with the implementation of predictive maintenance for thermal systems. There is an overview of suitable sensors and data processing methods, as well as various classification algorithms. In the end, the best sensor-algorithm combinations are shown.

Sign in / Sign up

Export Citation Format

Share Document