scholarly journals INTRODUCTION OF RAPID PROTOTYPING IN SOLVING APPLIED PROBLEMS IN PRODUCTION

2020 ◽  
Vol 17 (35) ◽  
pp. 354-366 ◽  
Author(s):  
Veniamin A.; ; ; BRYKIN ◽  
Anton P. VOROSHILIN ◽  
Andrey V. RIPETSKIY ◽  
Petr A. UHOV
Keyword(s):  
Direct Contact ◽  
Economic Effect ◽  
Fatigue Tests ◽  
Spare Parts ◽  
Laser Fusion ◽  
Manufacturing Cost ◽  
Delivery Time ◽  
Selective Laser Fusion ◽  
The Cost ◽  
Financial Losses

All conveyor lines and machines should work smoothly in order to ensure a well-timed production during production. There are parts and nods, the failure of which leads to the failure of the entire conveyor. It is the delivery time and financial losses due to equipment downtime that make the problem of quick reproduction of the relevant part to replace the original one. In this work, the process of creating a test piece using selective laser fusion (SLS) technology was considered. In this case, the economic efficiency of the fabrication of products depends directly on the effective and correct solution to the problems of technological preparation of additive production. The printed model was tested in direct contact with water for 500 hours. Fatigue tests were performed using 40% primary and 60% secondary powder ratios. To quantify the properties of the material for given geometry, a series of tensile testing of products was carried out. To identify the best ratio of strength, elasticity, and manufacturing cost for testing, samples were offered with different percentages of powder. It was noted that the cost of manufacturing spare parts, tools, and accessories (SPA) using 3D printing depends on many factors. The product geometry determines their volume, and the density of their arrangement in the chamber was recognized as a crucial impact factor. The accumulated experience and analysis of the criteria allowed us to offer several layout options that can lead to a maximum economic effect.

scholarly journals Forecasting spare parts demand using condition monitoring information

2019 ◽  
Vol 26 (1) ◽  
pp. 53-68
Author(s):  
Nzita Alain Lelo ◽  
P. Stephan Heyns ◽  
Johann Wannenburg
Keyword(s):  
Natural Frequency ◽  
Demand Forecasting ◽  
Fatigue Tests ◽  
Spare Parts ◽  
Just In Time ◽  
Base Excitation ◽  
Content Type ◽  
Forecasting Methods ◽  
Spare Parts Management ◽  
The Cost

Purpose The control of an inventory where spare parts demand is infrequent has always been difficult to manage because of the randomness of the demand, as well as the existence of a large proportion of zero values in the demand pattern. The purpose of this paper is to propose a just-in-time (JIT) spare parts availability approach by integrating condition monitoring (CM) with spare parts management by means of proportional hazards models (PHM) to eliminate some of the shortcomings of the spare parts demand forecasting methods. Design/methodology/approach In order to obtain the event data (lifetime) and CM data (first natural frequency) required to build the PHM for the spares demand forecasting, a series of fatigue tests were conducted on a group of turbomachinery blades that were systematically fatigued on an electrodynamic shaker in the laboratory, through base excitation. The process of data generation in the numerical as well as experimental approaches comprised introducing an initial crack in each of the blades and subjecting the blades to base excitation on the shaker and then propagating the crack. The blade fatigue life was estimated from monitoring the first natural frequency of each blade while the crack was propagating. The numerical investigation was performed using the MSC.MARC/2016 software package. Findings After building the PHM using the data obtained during the fatigue tests, a blending of the PHM with economic considerations allowed determining the optimal risk level, which minimizes the cost. The optimal risk point was then used to estimate the JIT spare parts demand and define a component replacement policy. The outcome from the PHM and economical approach allowed proposing development of an integrated forecasting methodology based not only on failure information, but also on condition information. Research limitations/implications The research is simplified by not considering all the elements usually forming part of the spare parts management study, such as lead time, stock holding, etc. This is done to focus the attention on component replacement, so that a just-in-time spare parts availability approach can be implemented. Another feature of the work relates to the decision making using PHM. The approach adopted here does not consider the use of the transition probability matrix as addressed by Jardine and Makis (2013). Instead, a simulation method is used to determine the optimal risk point which minimizes the cost. Originality/value This paper presents a way to address some existing shortcomings of traditional spare parts demand forecasting methods, by introducing the PHM as a tool to forecast spare parts demand, not considering the previous demand as is the case for most of the traditional spare parts forecasting methods, but the condition of the parts in operation. In this paper, the blade bending first mode natural frequency is used as the covariate in the PHM in a laboratory experiment. The choice of natural frequency as covariate is justified by its relationship with structural stiffness (and hence damage), as well as being a global parameter that could be measured anywhere on the blade without affecting the results.

scholarly journals The Proposal to Create Provisions of Land Military Equipment in The Army of The Czech Republic

2017 ◽  
Vol 23 (2) ◽  
pp. 83-89
Author(s):  
Jaromir Mares
Keyword(s):  
Czech Republic ◽  
Life Cycle ◽  
Spare Parts ◽  
Delivery Time ◽  
The Czech Republic ◽  
Optimization Criteria ◽  
Military Equipment ◽  
Abc Analysis ◽  
The Cost

Abstract The paper deals with the proposed method of creating the reserves of land military equipment in the Army of the Czech Republic. The aim is to propose the classification of spare parts categories and their consumption quantities in a calendar year. The reserves optimization criteria and the Pareto ABC analysis have been employed, besides basic methods, in the submitted paper. The proposal is based on the purpose and delivery time of spare parts. The cost indicator is related to the operation of land military equipment within its life cycle, including the supply of spare parts. Under the above mentioned conditions the method was determined to create the reserves of spare parts for land military equipment necessary to ensure the ACR operability in peacetime.

ECONOMIC PERSPECTIVES OF BIOTECHNOLOGIES USING IN ANIMAL FARMING

1970 ◽  
pp. 57-60
Author(s):  
I. F. Gorlov ◽  
A. A. Mosolov ◽  
G. V. Komlatskiy ◽  
M. A. Nesterenko ◽  
K. D. Nimbona ◽  
...  
Keyword(s):  
Embryo Transfer ◽  
Economic Effect ◽  
Dairy Herd ◽  
State Level ◽  
Modern Level ◽  
Economic Perspectives ◽  
The Cost ◽  
Short Time

The article presents materials on the study of the possibility of reproduction and increase in the herd of highly productive cows through the use of embryo transplantation technology. The classical (in vivo) and more modern, developing (in vitro) methods of embryotransfer, their positive and negative sides are considered in detail. The possibility of accelerating the breeding process by using the method of transplantation, in which from one cow can be obtained from 10 to 100 calves, which will allow for 4-5 years, almost any herd (of any size and breed) with the help of biotechnology to turn into a cattle-breeding enterprise of the most modern level. At the same time, heifers obtained from unproductive cows can be used as "surrogate" mothers who are transplanted with the best donor embryos, which allows to obtain a full-fledged offspring adapted to local environmental conditions. A detailed scheme of obtaining, evaluation, storage, as well as the cost and economic effect of embryo transplantation was calculated, the market was evaluated, the required annual volume of transplants and the number of donor cows for large livestock farms were determined. As a positive example of "Scientific-production enterprise "Centre of biotechnology and embryo transfer" in 2014, implemented a project for accelerated replacement and genetic improvement of the dairy herd, engraftment averaged 57-69%, and the economic effect of the enterprise from getting a single animal by the method of embryo transfer, compared with imports of similar close in quality, ranged from 60 to 100 thousand rubles on his head. It is shown that it is necessary to organize at the state level a developed service for embryo transplantation to reduce the cost of embryo transfer and the possibility of creating in a short time in the country's own highly productive breeding nucleus of dairy and beef cattle, which will reduce, and in the future completely eliminate, import dependence on cattle products.

Probiotics in the diets of laying quails

2020 ◽  
pp. 60-66
Author(s):  
O. Merzlyakova ◽  
V. Rogachyev ◽  
V. Chegodaev
Keyword(s):  
Bacillus Subtilis ◽  
Bacillus Licheniformis ◽  
Egg Production ◽  
Positive Impact ◽  
Hematological Parameters ◽  
Economic Effect ◽  
Egg Laying ◽  
Control Group ◽  
Egg Mass ◽  
The Cost

The efficiency of introducing probiotics based on strains of Bacillus subtilis, Bacillus licheniformis and their consortium in the amount of 150 g/t of feed into the diets of laying quails has been studied. The experiment lasting 182 days has been carried out on four groups of quails with 30 heads in each. The quails have been housed in the broiler battery in compliance with the required microclimate conditions. Quails of all groups have been received the main diet (compound feed) developed taking into account their age and physiological characteristics. The quails of the 1st, 2nd and 3rd experimental groups in addition to the main diet received probiotics (150 g/t compound feed) based on strains Bacillus subtilis, Bacillus licheniformis and their consortium, respectively. It has been found that feeding the laying quails of the consortium of strains Bacillus subtilis and Bacillus licheniformis had the most significant positive impact on their productive performance, it allowed to increase egg production by 7,81 %, egg laying intensity by 5,0 %, egg mass yield by 9,77 %, while reducing feed expenditures for 10 eggs by 13,35 %. The yield of hatching eggs has been increased by 7,03 %, hatchability of chickens from laid and fertilized eggs by 8,33 and 8,35 %, brooding waste decreased by 21,74 %. Hematological parameters of quails during the whole experiment were within the physiological norm. The economic effect calculated on the basis of data on the cost of compound feed, probiotics and the cost of sold eggs of quail laying was 14,56 % in the 3rd experimental group (in relation to the control group).

From a Seed to a Need: the Growth of Shape Memory Applications in Europe.

1991 ◽  
Vol 246 ◽  
Author(s):  
Ir. J. Van Humbeeck
Keyword(s):  
Shape Memory ◽  
Low Cost ◽  
Marketing Research ◽  
Research Approach ◽  
Manufacturing Cost ◽  
Product Price ◽  
Key Factor ◽  
Place Promotion ◽  
Memory Applications ◽  
The Cost

AbstractA more systematic marketing research approach has finally revealed good ideas anticipating a market need for the use of shape memory alloys. The success of those new ideas, prototypes and applications are analysed in terms of “the value of the function”, defined as the importance of the function divided by the cost of providing the function. A high importance and/or a low cost of the function are thus the basic requirements for the successful introduction of shape memory applications. Attention is also paid to the way how the 4 P's, product, price, place, promotion (the marketing mix) are applied by the European companies. Those different items will be illustrated on the basis of some small-, medium- and largescale applications, used in different markets. “to the point research”, fundamental and applied, on material properties as well as on manufacturing (cost reduction) is being discussed as the key factor to increase the function value.

The Research and Development of Mechanical Product Turning Processing Cost Estimation System

2011 ◽  
Vol 121-126 ◽  
pp. 3612-3616
Author(s):  
Wen Quan Huang ◽  
Kai Shi Li ◽  
Hai Jun Liu
Keyword(s):  
Cost Estimation ◽  
Manufacturing Cost ◽  
Cost Information ◽  
Development Environment ◽  
Improve Design ◽  
Market Competitiveness ◽  
Processing Cost ◽  
Estimation System ◽  
The Cost ◽  
Time Standard

This paper adopts the method labor time standard, in the development environment of VC++, using Access database storage costs data, and the cost results output into Excel, developed mechanical product turning processing manufacturing cost estimation system. Using this system can realize turning processing cost estimation and feedback the cost information of mechanical product turning processing, make a design personnel to understand the cost information, to improve design, reduce the cost, improve the market competitiveness of products

Theoretical and methodological approaches to the calculation of planned costs for maintenance of service vehicles of the road works customer

2021 ◽  
Vol 2021 (23) ◽  
pp. 20-30
Author(s):  
Taras Pechonchyk ◽  
◽  
Vitaliy Ivanchenko ◽  
Keyword(s):  
Customer Service ◽  
Planning Process ◽  
Spare Parts ◽  
Cost Estimates ◽  
The Road ◽  
Fleet Composition ◽  
Cost Planning ◽  
Methodological Approaches ◽  
The Cost ◽  
Service Vehicles

AbstractIntroduction. Effective management of road indstry is particularly important in conditions of limited funding, as it is not possible to provide adequate funding of the economic entity that has the functions of a customer service. The cost of the customer service maintenance depends directly on the compliance with applicable regulations for these works cost determination. One of the aspects that form a considerable part of the costs of customer service is the maintenance of service vehicles.Problem Statement. Road services in the regions (hereinafter RSR) are the recipients and managers of the funds from the State Budget of Ukraine that are directed for the development and maintenance of public roads of state importance, being as well the asset holders of these roads. To perform their functions, the RSR have vehicles on their balance, the use of which involves a number of costs, including fuel and lubricants, repair, maintenance, replacement of tires, etc. The most important of the steps involved in setting the costs of vehicle maintenance is the process of cost planning. Planning has to be based on the structure of the vehicle fleet (own or leased), functional responsibilities and scope of road works.Planning is carried out for vehicles on the balance of the RSR, as well as for leased vehicles. In the case of leasing, the costs mentioned above are added by the vehicles leasing costs. These costs must be forecasted, justified and performed within the approved cost estimates of the customer service expenses.Purpose. The purpose of the article is to highlight the theoretical and methodological approaches to the calculation of planned costs for the maintenance of service vehicles of the road works customer.Materials and methods. Dialectical methods of knowledge, such as analysis and synthesis of fleet composition characteristics and approaches to cost planning methods, as well as induction, were used in writing the article to explore some aspects of the process of calculating the planned cost of maintenance of the road works customer's service vehicles.Results. The study highlights and describes the main approaches to the calculation of planned costs for the maintenance of service vehicles of the road works customer. The methodology of calculation of planned costs for the maintenance of service vehicles is explored.Conclusions. The introduction of a clear methodology and analytical toolkit for calculating all necessary expenditure items for the maintenance of the road works customer's vehicles in the cost planning process will establish the implementation of a clear mechanism for calculating the planned costs of maintenance of the road works customer's vehicles. It will also provide an automated information-analytical complex for planning of cost estimates, with information entry and reporting in standard forms and possibility of prompt response to changes in fleet composition, needs for spare parts, repairs or other expenses for the maintenance of service vehicles and making changes in cost estimates.Keywords: motor vehicles, costs, cost planning, customer service, maintenance of service vehicles

scholarly journals STRATEGI PENGEMBANGAN KUALITAS PELAYANAN UNTUK MEMENUHI KEINGINAN KONSUMEN PADA BENGKEL WIJAYA TOYOTA

2019 ◽  
Vol 1 (1) ◽  
pp. 39-54
Author(s):  
Anggit Suryopratomo
Keyword(s):  
Qualitative Methods ◽  
Direct Contact ◽  
Completion Time ◽  
Quality Function Deployment ◽  
Spare Parts ◽  
Quality Of Services ◽  
House Of Quality ◽  
Waiting Room ◽  
Care Services

This study addresses the complex problems in taking a decision to achieve corporate objectives, to improve the quality of consumer care services, as well as care services in accordance with the wishes of the customer in Workshop Wijaya Toyota (PT Wijaya Motor Lestari) in partnership with PT Astra International Tbk. This research is descriptive, assigning a sample of 100 customers. Data were processed in the qualitative  methods using Quality Function Deployment and the result was displayed in a matrix House of Quality. The results show that strategies the workshop Wijaya Toyota applies to improving the quality of services are: the waiting room and toilet cleanliness, promoting warranty repair workshop, ensuring the accuracy of completion time of maintenance, speed of completion of the work, maintenance appropriate to their complaints, garage attendant explanation of maintenance, stock availability of original spare parts, direct workshop personnel explanation at the time of submission, garage attendant explanation upon delivery, transparent overall cost to be paid,  reasonableness price of original parts, friendliness and courtesy officer spare parts, and workshop personnel direct contact. 

scholarly journals STUDY OF EDGE PROTECTING ANCHORS INFLUENCE ON SOIL HEAVING OF THE MINE WORKING

2020 ◽  
Vol 5 (443) ◽  
pp. 71-80
Author(s):  
Demin Vladimir, ◽  
◽  
Mussin Ravil, ◽  
Demina Tatiana, ◽  
Zhumabekova Aila, ◽  
...  
Keyword(s):  
Mine Working ◽  
Economic Effect ◽  
Cross Sectional ◽  
Maintenance Costs ◽  
Technical Result ◽  
Technological Developments ◽  
Mine Workings ◽  
Anchor Bolts ◽  
Sectional Shape ◽  
The Cost

To achieve the objective with the claimed technical result, a method of fastening mine workings of predominantly rectangular cross-sectional shape with anchor bolts was used, while the applied task of reducing the heaving of soil rocks is to increase the efficiency of mine workings by ensuring that the mine workings. Ensuring the possibility of reliable and of good quality fortified rocks along the contour of making within the boundaries of the zone of possible collapse of rocks. The length of the soil anchors did not significantly affect the condition of the soil rocks. Consequently, that on the deformations and stresses both in the lateral and in the soils are not soil, but lateral anchors. The use of these technological developments will reduce the cost of conducting and maintaining workings by 7–10% with soil anchors (reducing maintenance costs by 7–10%) and will provide an economic effect of 10–15 thousand tenge per running meter of output.

scholarly journals The influence of the training system directed to increase stress resistance on the economic efficiency of sports horses` training

2021 ◽  
pp. 12-17
Author(s):  
І. O. Каbasova ◽  
◽  
M. P. Petryshko ◽  
Keyword(s):  
Economic Efficiency ◽  
Stress Resistance ◽  
Economic Effect ◽  
Nervous Activity ◽  
Training System ◽  
Control Group ◽  
Activity Types ◽  
Reducing Costs ◽  
The Cost ◽  
Complex Methods

The economic efficiency of the applying the complex to increase the stress resistance of horses during participation in competitions and demonstrative performances has been determined in this work. Thus, the sports success of horses with application of complex methods to increase the stress resistance during participation in competitions and demonstrative performances and horses trained on the usual training system has been compared; the economic effect of applying some complex methods to increase the stress resistance of horses during participation in competitions and demonstrative performances has been investigated. The research has been carried out on 10 heads of horses of the jumping group of Dergachy child and youth horse racing school. Based on the results of horses` participation in competitions and taking into account the higher nervous activity types, two equivalent groups – control and experimental by five heads in each have been formed. The complex methods to increase the stress resistance have been introduced in training system of horses of the experimental group; training of horses of the control group remained unchanged. The calculation of expenses for participation in competitions has been carried out by drawing up expenditures for transportation of horses, nutrition and accommodation of the team, starting contributions and the cost of renting stables. The total number of starts has been determined by multiplying the number of heads of horses by the number of starts of one head during the period of competitions. The number of successful starts has been calculated by a percentage of starts with the prize places from the total number of starts. To determine the economic efficiency of the application of the complex methods to increase the stress resistance of horses the amount of expenses per successful start by dividing the total amount of costs for the number of successful starts was calculated. It has been established that the economic efficiency of the applying of the complex methods to increase the stress resistance of horses is 1194,75 UAH for one successful start. The results of the research allowed to recommend the application of the developed method to increase the stress resistance in the training system of horses in order to increase the effectiveness of participation in competitions and reducing costs for each successful start.

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