scholarly journals Improving the productivity of Pini-Kay fuel briquettes by modernizing the working part of the PSH-250 press

2021 ◽  
pp. 36-42
Author(s):  
Andrii Dovhopolov ◽  
Sergii Nekrasov ◽  
Zakhar Reuta
Keyword(s):  
Structural Strength ◽  
Spare Parts ◽  
Technological Solution ◽  
Main Criterion ◽  
Structural Alloy ◽  
High Quality ◽  
Financial Costs ◽  
Manufactured Products ◽  
The Press ◽  
The Cost

The research related to the productivity of production of fuel briquettes of the "Pini-Kay" type, due to the modernization of the working part of the press line for the production of fuel briquettes with a capacity of 250 kg / h (LVB - 250) was carried out. It is known that the press used on this line is PSH-250, it is the main working equipment of this line, as it serves to press the briquette under temperature and is the closing link in the whole briquette process. In the presented study, the main criterion of productivity was considered to be the number of manufactured products before the break of the splined auger, because the breakdown forces to stop the equipment and replace it. This in turn reduces the number of manufactured products. The paper states that the modernization was carried out as follows: the slot screw, which is the main working body of the press PSH - 250, made of structural steel (steel 45) by casting, was replaced by a slotted screw made by machining on CNC machines, high-quality structural alloy steel 40HMFA. This steel is used to make splined shafts, connecting rods and rods, and is best suited for making a splined auger. In addition, to increase the structural strength, the workpiece of the auger, was made heat treatment - normalization. The proposed technological solution allowed to increase the productivity of fuel briquettes, by reducing the downtime of equipment for repair and replacement of working parts of the press PSH-250. This in turn reduced the company's financial costs for spare parts and affected the cost of finished products. The obtained results show that the slotted augers proposed by the authors allowed to increase the productivity of fuel briquettes production almost 10 times in comparison with the previous results.

scholarly journals TO THE CALCULATION OF THE ELASTIC PRESSURE ELEMENTS OF THE FUSES OF THE WORKING BODIES OF A MILLING TILLAGE MACHINE

2020 ◽  
Vol 8 (1) ◽  
pp. 180-186
Author(s):  
Pavel Scheblykin
Keyword(s):  
Dynamic Loads ◽  
Cylindrical Shape ◽  
Main Criterion ◽  
Reliable Operation ◽  
High Quality ◽  
Premature Failure ◽  
Repair Costs ◽  
Close Proximity ◽  
Working Bodies ◽  
The Cost

The reliable operation of tillage forestry cutters largely depends on the perfection of their means of protection against overloads. The safety devices used to protect against overloading of tillage mills by torque do not fully provide adequate protection of working bodies and the drive against arising overloads, since they have significant dynamic loads, low accuracy of operation, complicate the design of the machine, and lead to premature failure of individual its parts and assemblies increase the cost and repair costs. The main criterion for the design of high-quality fuses in design that protect the drive units of the machine in terms of torque is the introduction of such elements into their design that would allow several functions to be performed at once. Thus, this article presents recommendations that will allow the calculation of the main characteristics of the friction type fuses and their elements located in close proximity to the working body of the rotary forestry machine or built into them, having in their design elastic pressing elements of a flat cylindrical shape.

IMPROVING THE RELIABILITY OF TRAILED DUMP VEHICLES

2021 ◽  
Vol 2 (21) ◽  
pp. 89-96
Author(s):  
E.V. Ibragimov ◽  
Keyword(s):  
Automotive Industry ◽  
Structural Strength ◽  
Operational Reliability ◽  
Technical Solution ◽  
Industrial Complex ◽  
Quality And Safety ◽  
The Russian Federation ◽  
Cargo Transportation ◽  
The Cost ◽  
Cost Of Transportation

Increasing the productivity and efficiency of agricultural cargo transportation in the agro-industrial complex of the Russian Federation is achieved through the use of tractor trains consist-ing of tractors and trailer links, the main of which are trailers. This method allows you to ensure the quality and safety of agricultural goods, as well as reduce the cost of transportation. During the analysis of the known designs of tractor-trailer dump trailers, it was revealed that a character-istic drawback is the imperfection of the design of the locking elements of the platforms designed to fix them on the chassis. As a result, a promising technical solution was developed, which, in comparison with the known ones, has a simple design and increased efficiency when fixing the bodies on the chassis. The article describes the design and the principle of operation of this tech-nical solution. The results of the structural strength calculation are presented. The conducted check showed that the obtained value of the safety factor, equal to 2.2, will ensure the operational reliability of trailed dump vehicles. The results of the study are recommended to both domestic and foreign research institutes, design and production structures of the automotive industry for further study and refinement of the proposed device with a view to its possible implementation in practice.

Minimizing the cost of products manufactured by the assembly line

2020 ◽  
pp. 483-487
Author(s):  
N.I. Aristova
Keyword(s):  
Computer Modeling ◽  
Assembly Line ◽  
Scientific Research ◽  
The Self ◽  
Manufactured Products ◽  
The Cost ◽  
Assembly Operations ◽  
Automation Tools ◽  
Probabilistic Nature ◽  
Product Assembly

A significant criterion for the functioning of an assembly line is to minimize the cost of manufactured products, for the achievement of which approaches are currently used that apply computer modeling and the hierarchical principle of product assembly, the approach, as well as taking into account the probabilistic nature of the assembly operations. An overview of scientific research aimed at solving these problems is given. An approach has been proposed that makes it possible to assess the efficiency of production in the self-reproduction of automation tools by the criterion of minimizing the cost of manufactured 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

Analysis of Yielding and Buckling Strength of a Minimal Ballast Water Crude Oil Tanker

2018 ◽  
Author(s):  
Xueqian Zhou ◽  
Hexing Song ◽  
Chenfeng Li ◽  
Huilong Ren ◽  
Siyu Wang
Keyword(s):  
Water Management ◽  
Water Pollution ◽  
Crude Oil ◽  
Ballast Water ◽  
Structural Strength ◽  
Buckling Strength ◽  
Trapezoidal Shape ◽  
The Cost ◽  
Oil Tanker ◽  
Ballast Water Management

The minimal ballast water crude oil tanker has the design of a trapezoidal-shape inclined bilge entirely instead of the regular U-shaped tanker, also known as the trapezoidal tanker, which reduces the amount of the ballast water. This type of ship does not only reduce the cost on ballast water management, but also is beneficial to the environment for reducing the risk of water pollution. Since it is a new design, there are no applicable specifications for the assessment of structural strength at present. In order to find out characteristics of the yielding and buckling strength of this type of ship, the strength of a conventional tanker and a trapezoidal tanker are calculated by a finite element method and then compared with a variety of cases. It can be seen that the trapezoidal tanker has lots of advantages in strength and lighting weight.

scholarly journals Current Diagnosis and Management of Cervical Spondylotic Myelopathy

2017 ◽  
Vol 7 (6) ◽  
pp. 572-586 ◽  
Author(s):  
Joshua Bakhsheshian ◽  
Vivek A. Mehta ◽  
John C. Liu
Keyword(s):  
Natural History ◽  
Cervical Spondylotic Myelopathy ◽  
Early Recognition ◽  
Clinical Manifestations ◽  
High Quality ◽  
Diagnosis And Management ◽  
Imaging Characteristics ◽  
Cervical Sagittal Alignment ◽  
Long Term Follow Up ◽  
The Cost

Study Design: Review. Objectives: Cervical spondylotic myelopathy (CSM) is a major cause of disability, particular in elderly patients. Awareness and understanding of CSM is imperative to facilitate early diagnosis and management. This review article addresses CSM with regard to its epidemiology, anatomical considerations, pathophysiology, clinical manifestations, imaging characteristics, treatment approaches and outcomes, and the cost-effectiveness of surgical options. Methods: The authors performed an extensive review of the peer-reviewed literature addressing the aforementioned objectives. Results: The clinical presentation and natural history of CSM is variable, alternating between quiescent and insidious to stepwise decline or rapid neurological deterioration. For mild CSM, conservative options could be employed with careful observation. However, surgical intervention has shown to be superior for moderate to severe CSM. The success of operative or conservative management of CSM is multifactorial and high-quality studies are lacking. The optimal surgical approach is still under debate, and can vary depending on the number of levels involved, location of the pathology and baseline cervical sagittal alignment. Conclusions: Early recognition and treatment of CSM, before the onset of spinal cord damage, is essential for optimal outcomes. The goal of surgery is to decompress the cord with expansion of the spinal canal, while restoring cervical lordosis, and stabilizing when the risk of cervical kyphosis is high. Further high-quality randomized clinical studies with long-term follow up are still needed to further define the natural history and help predict the ideal surgical strategy.

scholarly journals Exploring the Impact of Early Decisions in Variable Ordering for Constraint Satisfaction Problems

2018 ◽  
Vol 2018 ◽  
pp. 1-14
Author(s):  
José Carlos Ortiz-Bayliss ◽  
Ivan Amaya ◽  
Santiago Enrique Conant-Pablos ◽  
Hugo Terashima-Marín
Keyword(s):  
Constraint Satisfaction ◽  
Constraint Satisfaction Problems ◽  
Search Cost ◽  
High Quality ◽  
Simple Method ◽  
Variable Ordering ◽  
It Performance ◽  
The Cost ◽  
The Impact ◽  
Variable Ordering Heuristics

When solving constraint satisfaction problems (CSPs), it is a common practice to rely on heuristics to decide which variable should be instantiated at each stage of the search. But, this ordering influences the search cost. Even so, and to the best of our knowledge, no earlier work has dealt with how first variable orderings affect the overall cost. In this paper, we explore the cost of finding high-quality orderings of variables within constraint satisfaction problems. We also study differences among the orderings produced by some commonly used heuristics and the way bad first decisions affect the search cost. One of the most important findings of this work confirms the paramount importance of first decisions. Another one is the evidence that many of the existing variable ordering heuristics fail to appropriately select the first variable to instantiate. Another one is the evidence that many of the existing variable ordering heuristics fail to appropriately select the first variable to instantiate. We propose a simple method to improve early decisions of heuristics. By using it, performance of heuristics increases.

GAIN Premix Facility: An Innovative Approach for Improving Access to Quality Vitamin and Mineral Premix in Fortification Initiatives

2012 ◽  
Vol 33 (4_suppl3) ◽  
pp. S381-S389 ◽  
Author(s):  
Philippe Guinot ◽  
Vincent Jallier ◽  
Alessandro Blasi ◽  
Christophe Guyondet ◽  
Marc Van Ameringen
Keyword(s):  
Large Scale ◽  
Edible Oils ◽  
Quality Standards ◽  
Private Industry ◽  
Target Groups ◽  
High Quality ◽  
Adequate Quality ◽  
Standards And Guidelines ◽  
Set Up ◽  
The Cost

Background Vitamin and mineral premix is one of the most significant recurring input costs for large-scale food fortification programs. A number of barriers exist to procuring adequate quality premix, including accessing suppliers, volatile prices for premix, lack of quality assurance and monitoring of delivered products, and lack of funds to purchase premix. Objective To develop and test a model to procure premix through a transparent and efficient process in which an adequate level of quality is guaranteed and a financial mechanism is in place to support countries or specific target groups when there are insufficient resources to cover the cost of premix. Methods Efforts focused on premixes used to fortify flour, such as wheat or maize (iron, zinc, B vitamins, and vitamin A), edible oils (vitamins A and D), and other food vehicles, such as fortified complementary foods, complementary food supplements, and condiments. A premix procurement model was set up with three distinct components: a certification process that establishes industry-wide standards and guidelines for premix, a procurement facility that makes premix more accessible to countries and private industry engaged in fortification, and a credit facility mechanism that helps projects finance premix purchases. Results After three years of operation, 15 premix suppliers and 29 micronutrient manufacturers have been certified, and more than US$23 million worth of premix that met quality standards has been supplied in 34 countries in Africa, Central and Southern Asia, and Eastern Europe, reaching an estimated 242 million consumers. Conclusions The Premix Facility demonstrated its effectiveness in ensuring access to high-quality premixes, therefore enabling the success of various fortification programs.

scholarly journals Manajemen Biaya untuk Meningkatkan Ketepatan Penghitungan Biaya melalui Biaya Berbasis Aktivitas

2018 ◽  
Vol 7 (2) ◽  
pp. 125
Author(s):  
Agung Listiadi
Keyword(s):  
Cost Driver ◽  
Management Systems ◽  
Activity Based Costing ◽  
High Quality ◽  
Overhead Cost ◽  
Consumption Cost ◽  
Costing System ◽  
Major Factors ◽  
The Cost ◽  
Selection Of

Cost is an important factor in ensuring the company win in the competition on the market. Consumers will choose a manufacturer that is able to produce products and services that have high quality with low prices. Costs of Management Systems Contemporary emphasis on search than the allocation. And management based activities are at the heart of contemporary operating control system. At least two major factors that must be considered in the selection of cost driver (cost driver) are: the cost of measurement and the degree of correlation between the consumption cost driver with the actual overhead. Cost driver is divided into two categories, namely the structural cost driver and executional cost driver. Cost driver is the basis used to charge collected on cost pool to the product. So that the calculation of the cost through Time Driven activity-based costing system, the company obtain more precise information and accurate.

scholarly journals RESULTS OF THE NUTRITIONAL PRESERVATION RESEARCH OF THE ALFALFA LAYING ON STORAGE WITH TWO-PHASE COMPACTION

2020 ◽  
Vol 60 (1) ◽  
pp. 264-274
Author(s):  
D.O. Milko ◽  
O.H. Sclyar ◽  
R.V. Sclyar ◽  
G.P. Pedchenкo ◽  
D.P. Zhuravel ◽  
...  
Keyword(s):  
Food Supply ◽  
Nutrient Content ◽  
Livestock Production ◽  
Storage Process ◽  
Main Criterion ◽  
Milk Productivity ◽  
Two Phase ◽  
Modern Manufacturing ◽  
The Cost

In modern manufacturing of livestock production, the outstanding value is allocated for a food supply. The main criterion for evaluating the quality of feed components is the nutrient content of the feed ration. However, in the process of the storage, the maintenance of the nutritious substances decreases for various reasons that are leading to decreasing livestock efficiency and increasing the cost. The results of the use of a two-phase compaction of the forage vegetable components on the example of the alfalfa are given in the article. The dependence coefficient of the nutritional preservation on density of the alfalfa put on storage are also presented in this article. The applied method and the results obtained can be used in the development and design offices to create new equipment based on the two-phase compaction of the fodder vegetable component mixes by preparing them for storage. The application of this method brings to decreasing losses of nutrients in the storage process which reduces the components cost in total with increasing additional weights and the milk productivity.

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