Optimization of the design of the pig launcher-receiver chambers of cleaning and diagnostic tools

2021 ◽  
pp. 460-465
Author(s):  
Илья Александрович Флегентов ◽  
Алексей Викторович Кулешов
Keyword(s):  
Operational Reliability ◽  
Operating Costs ◽  
Diagnostic Tools ◽  
Optimized Design ◽  
Metal Consumption ◽  
Process Diagnostics ◽  
Working Chamber ◽  
Pipeline Inspection ◽  
Main Pipelines ◽  
Applied Design

По результатам проведенного анализа конструктивных решений камер пуска-приема средств очистки и диагностики (КПП СОД), применяемых при технической диагностике и техническом обслуживании магистральных трубопроводов в России и за рубежом, был установлен ряд проблем существующих конструкций, снижающих эксплуатационную надежность данного вида оборудования. Это, в свою очередь, обусловило актуальность задачи оптимизации конструкции КПП СОД, в том числе в части унификации используемых при их изготовлении деталей, увеличения доли заводских изделий. Были приняты решения, обеспечившие комплексный подход к вопросу повышения надежности и ремонтопригодности оборудования - разработана новая конструкция КПП СОД, позволяющая снизить металлоемкость и трудоемкость при изготовлении, сократить эксплуатационные затраты, повысить технологичность и прочностные характеристики. В рамках решения данной задачи выполнены расчетно-теоретические исследования с применением прикладного программного комплекса SIMULIA Abaqus. Надежность оптимизированной конструкции подтверждена результатами испытаний на прочность опытного образца КПП СОД с номинальным диаметром рабочей камеры DN 1000. Разработан типоразмерный ряд КПП СОД усовершенствованной конструкции с номинальными диаметрами рабочей камеры DN 150-1200 для применения на магистральных нефте- и нефтепродуктопроводах. Based on the results of the analysis of the design solutions of launching and receiver stations of pipeline inspection gauges (pig launchers-receivers) used in process diagnostics and maintenance of main pipelines in Russia and abroad, a number of applied design issues was established. This, in turn, led to the relevance of the issue of optimizing the design of pig launchers and receivers, including the unification of parts used in their manufacture, thereby increasing the share of factory-made products. Decisions were made that provided a comprehensive approach to the issue of improving the operational reliability of this type of equipment - a new design of pig launchers and receivers was developed, which allows to reduce production metal consumption and labor intensity, reduce operating costs, increase constructability and reliability. As part of the solution of this issue, computational and theoretical studies using the SIMULIA Abacus software package were carried out. The reliability of the optimized design is confirmed by the results of durability tests of the pig launcher and receiver prototype with the nominal diameter of the working chamber of DN 1000. A dimension range of advanced designs of pig launchers and receivers with nominal working chamber diameters of DN 150-1200 for use in main oil and petroleum product pipelines was developed.

Reliability-based optimized design of hybrid tether

2020 ◽  
Vol 92 (8) ◽  
pp. 1141-1147
Author(s):  
Anil Kumar Agrawal ◽  
Mahendra Pratap ◽  
Subhash Chandra Sati ◽  
Rajeev Kumar Upadhyay
Keyword(s):  
Probabilistic Approach ◽  
Population Data ◽  
Operational Reliability ◽  
Design Approach ◽  
Optimized Design ◽  
Limited Data ◽  
Content Type ◽  
Reliability Based Design ◽  
Classical Design ◽  
Sample Test

Purpose The purpose of this paper is to optimize the design of a hybrid tether using probabilistic approach considering inherent random variation in the stress developed and the strength it has. The variation in strength is mostly because of variation in diameter of the tether and the properties of the material along the length of the tether. As a result, classical design approach for the tether may not serve the purpose. For this purpose, a reliability-based design of hybrid tether is discussed in this paper. Design/methodology/approach A literature review was carried out on the design of tether and its operational reliability. It has been shown that the classical design approach does not serve the purpose, as the strategic operation has to be reliable enough, often requiring a measure of reliability required. A reliability-based approach has been presented to achieve the optimum design of a hybrid tether. Findings The optimization problem was carried out for different values of the safety factor to investigate the effect on the optimal design of tether. An analysis is carried out to show that one should not target a very high value of reliability or factor of safety, as it causes the self-weight of the tether to increase tremendously and its cost significantly. Research limitations/implications The present work has been carried out considering the limited data and can further be extended to determine more accurate reliability measures by considering more number of sample test data. The measured data is collected from limited required trials for demo; do not represent the exact population data. Originality/value Lab strength test and flight trials were conducted to acquire data for the present analysis. In field use, it was noticed that the tether degraded from top portion attached toward the balloon end because of maximum exposure and repeated usage.

Improving the human-machine-environment monitoring system and operation rules for increasing operational tractor reliability

2020 ◽  
pp. 12-20
Author(s):  
Nikolay A. Petrishchev ◽  
Mikhail N. Kostomakhin ◽  
Aleksandr S. Sayapin ◽  
Irina B. Ivleva
Keyword(s):  
Human Factor ◽  
Negative Impact ◽  
Operational Reliability ◽  
Operating Costs ◽  
Research Purpose ◽  
Environment Monitoring ◽  
Operating Rules ◽  
Operation Rules ◽  
Subjective Assessments ◽  
Operational Factors

During fieldwork, machines and technical personnel work almost to the limit of their capabilities, while there is an urgent need for comprehensive monitoring of the interaction of the "Human-machine-environment" system and the operating rules for improving the operational reliability of tractors. (Research purpose) The research purpose is in developing a prototype of an electronic digital system that will help the operator to control changes in operational factors for improving the reliability of the entrusted equipment. (Materials and methods) The article presents conducted research on the use of the Galileo Sky+ terminal, which works together with additional programmable contactless sensors. This made it possible improving the system for increasing operational reliability. (Results and discussion) The article present examples and describes the accounting process for the human factor in the Human-machine-environment system. Authors have found that using the monitoring helps the operator and owner in reducing the share of subjective assessments in the efficiency of tractor operation and the readiness to work. (Conclusion) Using the proposed solutions for improving monitoring of the "Human-machine-environment" system will minimize the negative impact and risks of failures caused by the human factor in the operation of equipment. According to preliminary expert estimates, the efficiency of using the system will reduce operating costs and prevent gross errors in the operation of tractors.

Lowering of the Metal Consumption of Rollers and Operating Costs of Through-Type Furnaces of Rolling Mills

Metallurgist ◽  
2021 ◽  
Vol 64 (9-10) ◽  
pp. 917-922
Author(s):  
A. P. Lyakh ◽  
A. A. Filatov ◽  
A. G. Kolesnikov
Keyword(s):  
Operating Costs ◽  
Metal Consumption ◽  
Rolling Mills

scholarly journals A COMPARISON OF THE PUSH AND PULL PRODUCTION SYSTEMS AT THEIR OPTI MAL DESIGNS UNDER THE ECONOMIC CONSIDERATION

2017 ◽  
Vol 22 (4) ◽  
pp. 313
Author(s):  
N. Chiadamrong ◽  
P. Kohly
Keyword(s):  
Material Flow ◽  
Production Systems ◽  
Inventory Systems ◽  
Operating Costs ◽  
Shop Floor ◽  
Optimized Design ◽  
Production Inventory ◽  
Fair Comparison ◽  
Push And Pull ◽  
The Impact

The term “push” and “pull” have been used to explain a wide variety of production inventory systems. The distinction refers to a specific attribute, which can be identified by observing the mechanisms for controlling material flow on the shop floor and a specific policy for the management of inventories and production schedules. This paper gives an attempt to compare these systems under their optimal settings under a constraint resource. Two optimal-seeking methods (Taguchi method and Response Surface Methodology) are used to suggest the optimized design of the system under an economic term, which is the profit generated from the system. Then, a fair comparison can be made where each system is operating at its optimal design. Results from this study will reveal an in teresting outcome, letting us know the impact of the push and pull mechanisms on the systems’ operating costs as well as their profits. 

scholarly journals Optimization of PCB SI Coupon Design That Minimizes Discontinuity Through via-in-Pad Plated over (VIPPO) Technique

2020 ◽  
Vol 17 (4) ◽  
pp. 128-137
Author(s):  
Juhee Lee ◽  
Kyeongsoo Kim ◽  
Simon Kim ◽  
Kiseop Kim ◽  
Kyungsoo Lee
Keyword(s):  
Outer Layer ◽  
Print Circuit Board ◽  
Signal Integrity ◽  
Circuit Board ◽  
Optimized Design ◽  
Signal Loss ◽  
Discrete Signals ◽  
The Future ◽  
Via Holes ◽  
Applied Design

Abstract The importance of signal integrity is emphasized as signal speed increases, and higher frequencies are applied. The Print Circuit Board (PCB) manufacturer uses signal integrity coupons that can replace the in-product circuit to measure and calculate the signal loss. In this study, we tried to minimize the discontinuous path of Delta-L coupon by using the via-in-pad plated over (VIPPO) technique to improve the signal integrity. We compared the VIPPO-applied design that has minimal discontinuity with the conventional Delta-L design. To minimize discontinuity, circuits connected to pads and via holes were removed from the outer layer, and the pads were designed directly above the via holes. First of all, we simulated the optimized design that eliminated discontinuities using signal integrity software, Simbeor. Second, we measured and verified Delta-L by using Introbotix’s Accu-Prober program. In the future, higher measurement frequencies will further increase signal loss because of unnecessary pathways and discrete signals; therefore, minimizing the effects of discontinuity will be an important issue, and using the VIPPO technique will help improve signal integrity.

scholarly journals A System for the Remote Monitoring of Vehicle Technical Condition: Kirovets Tractor Gearbox Case Study

2021 ◽  
Vol 15 (3) ◽  
pp. 22-27
Author(s):  
M. N. Kostomakhin ◽  
N. A. Petrishchev ◽  
A. S. Sayapin
Keyword(s):  
Remote Monitoring ◽  
Residual Life ◽  
Operational Reliability ◽  
Technical Condition ◽  
Diagnostic Tools ◽  
Diagnostic Parameters ◽  
Individual Unit ◽  
Direct Measurements ◽  
Actual Change ◽  
The Individual

Abstract. The authors noted that in order to increase the energy-saturated equipment technical readiness, reduce its operation costs and ensure full use of the resource, it is necessary to quickly assess the current technical condition. The authors have created a counter-indicator prototype for high-precision control of gearbox technical condition. (Research purpose) To formulate a proposal for developing a system for the remote monitoring of gearbox technical condition applicable to the Kirovets tractor family. (Materials and methods) To increase the precision level of traceability and technical condition detection, a system of diagnostic tools was proposed based on the developed counters-indicators, which take into account design features when determining diagnostic parameters. (Results and discussion) It was shown that to assess the gearbox technical condition, it is necessary to use additional monitoring systems, obtain information for calculating the residual life, when using direct measurements and having a possibility of the ongoing monitoring over the actual change in the gearbox units diagnostic parameters. The authors studied the options for using meter-indicators to minimize group II and III failures during operation.(Conclusions) It was identified that in order to increase the level of gearbox operational reliability, it is necessary to introduce a system of counters-indicators. The authors revealed the possibility of monitoring the individual unit technical condition in accordance with the specified indicators, as well as in order to prevent operation in emergency (abnormal) modes.

In-situ measurement of ammonium and nitrate in the activated sludge process

2002 ◽  
Vol 45 (4-5) ◽  
pp. 93-100 ◽  
Author(s):  
L. Rieger ◽  
H. Siegrist ◽  
S. Winkler ◽  
E. Saracevic ◽  
R. Votava ◽  
...  
Keyword(s):  
Activated Sludge ◽  
Continuous Measurement ◽  
Low Cost ◽  
Operational Reliability ◽  
Operating Costs ◽  
Test Results ◽  
Plant Test ◽  
Reference Measurements ◽  
Composite Samples

A new in-situ probe is presented for the continuous measurement of ammonium and nitrate in wastewater. It requires no sample preparation and is installed directly in the process liquid. This new low-cost probe significantly reduces investment and operating costs and requires minimum maintenance. The paper describes the sensor principle and test results from three different probe locations: the primary clarifier effluent, the activated sludge tank and the nitrifying biofilter influent. Reference measurements were carried out by means of conventional analyzers with ultrafiltration, an in-situ UV spectrometer for the nitrate and laboratory analysis of spot and 2h-composite samples. The aim of the study was to investigate the operational reliability and accuracy of the new probe and the expenditure required for its maintenance and calibration. The tests showed that the new probe performed very well overall and required minimum maintenance. Some problems were observed during the biofilter plant test. They are assumed to be related to substantial changes in the wastewater composition.

scholarly journals THREE-SECTION SOIL PROCESSING UNIT WITH UNIVERSAL REPLACEABLE WORKING UNITS

2019 ◽  
Vol 14 (3) ◽  
pp. 92-95 ◽  
Author(s):  
Бадри Ахалая ◽  
Badri Ahalaya ◽  
Юрий Шогенов ◽  
Yuriy Shogenov ◽  
Сергей Старовойтов ◽  
...  
Keyword(s):  
Root Zone ◽  
Operational Reliability ◽  
Mineral Fertilizers ◽  
Processing Unit ◽  
Soil Environment ◽  
Metal Consumption ◽  
Row Crops ◽  
Direct Sowing ◽  
Tillage Operations

A three-section tillage unit has been developed that allows several operations to be performed in one pass: slotting to a depth twice as deep as cultivation, cultivation, crushing the soil and harrowing. At the same time, the grip width of the chopper and harrow of the first and third sections is equal to the width of three cultivating points, and the second base section is five, the operation of the unit with the proposed arrangement of working units improves the quality of the soil treatment. The design of a universal cultivating point of a new sample is presented, containing a chisel located in the bow and slotting machines in the form of two disks with teeth. Using the proposed universal cultivator point of a new sample provides improved soil cultivation by achieving more stable cultivator progress, increasing the unhindered access of irrigation water to the underlying layers of the root zone of plants, improving the water-air regime of the soil environment, increasing the operational reliability of the slotting machine and reducing the consumption of fuels and lubricants to 15 % A promising direction in the development of combined units with removable working units is the creation of combined working units for both sowing seeds, applying mineral fertilizers and herbicides, with the aim of conducting direct sowing of row crops in both dotted and combined ways. The combination of tillage operations with the placement of several working units on one rack allows you to reduce the number of frames in the unit while reducing the metal consumption of the structure by 10 ... 15%, which leads to an increase in the economic efficiency of the tillage unit.

scholarly journals INFLUENCE OF VIBRATION MAGNITUDE IN MACHINING OF MATERIALS BY TURNING TECHNOLOGY

2021 ◽  
Vol 2021 (4) ◽  
pp. 4886-4890
Author(s):  
STEFANIA OLEJAROVA ◽  
◽  
TIBOR KRENICKY ◽  
Keyword(s):  
Operational Reliability ◽  
Technical Condition ◽  
Operating Conditions ◽  
Operating Costs ◽  
Technical Diagnostics ◽  
Vibration Diagnostics ◽  
Maintenance Schedule ◽  
Basic Task ◽  
Monitoring Process ◽  
Vibration Magnitude

The basic task of any prosperous company is to minimize operating costs to a minimum. High-quality maintenance ensures an increase in the operational reliability of the machines. It is important to find a compromise between scheduled maintenance and production process requirements, so resources are spent to optimize the maintenance schedule. This is provided by technical diagnostics, which helps to monitor the technical condition and functional properties of the monitored machine under specified operating conditions. The publication is focused specifically on vibration diagnostics and its use in monitoring the transmission of vibrations during the turning of selected types of materials in the company with a focus on engineering, the ZVL AUTO s.r.o. The scope of research is mainly focused on the monitoring process in order to analyze the magnitude of vibration acceleration at two preselected parts of the machine tool - lathe.

scholarly journals Modernization of spring suspension of trailed vehicles

2021 ◽  
Vol 273 ◽  
pp. 07015
Author(s):  
Evgeny Slivinsky ◽  
Sergey Radin ◽  
Sergey Shubkin ◽  
Sergey Buneev
Keyword(s):  
Dynamic Strength ◽  
Operational Reliability ◽  
Metal Consumption ◽  
Torsion Spring ◽  
Design Scheme ◽  
Automatic Mode ◽  
Spring Suspension ◽  
General Cargo ◽  
Technical Solutions ◽  
Torsion Bar

This article presents materials related to the development of a promising design of adaptive torsion bar suspension for trailed special and cargo vehicles, both trailers and semi-trailers, designed for the transportation of bulk and general cargo. A number of technical solutions, created at the level of inventions, are proposed, which make it possible to simplify the existing types of spring suspensions, reduce their metal consumption, improve the smoothness of trailed vehicles (TV) and increase their operational reliability due to the operation of suspensions in automatic mode. when they overcome micro and macro unevenness of the roadway. Analytical studies were carried out with the development of a design scheme and a methodology for calculating the design of an adaptive torsion spring for static and dynamic strength.

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