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Journal of Siberian Federal University: Engineering & Technologies最新文献

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Optimization of Distributed Information-Measuring Systems 分布式信息测量系统的优化
Journal of Siberian Federal University: Engineering & Technologies Pub Date : 2020-12-01 DOI: 10.17516/1999-494X-0275
N. D. Demidenko, L. V. Kulagina
{"title":"Optimization of Distributed Information-Measuring Systems","authors":"N. D. Demidenko, L. V. Kulagina","doi":"10.17516/1999-494X-0275","DOIUrl":"https://doi.org/10.17516/1999-494X-0275","url":null,"abstract":"The article presents the task of optimizing the information-measuring system for controlling objects with distributed parameters. The optimal control problem is formulated using the functions of distributed control (measurement). The necessary optimality conditions are obtained. Based on these conditions, a numerical algorithm for calculating the optimal functions of distributed control is constructed. Numerical experiments were carried out","PeriodicalId":17206,"journal":{"name":"Journal of Siberian Federal University: Engineering & Technologies","volume":"30 1","pages":"923-932"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91129659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research of Strength, Service Life and Reliability of Crane Metal Structures: Overview and Results 起重机金属结构强度、寿命和可靠性研究综述与成果
Journal of Siberian Federal University: Engineering & Technologies Pub Date : 2020-12-01 DOI: 10.17516/1999-494X-0147
Lyudmila F. Moskvicheva, N. A. Chernyakova
{"title":"Research of Strength, Service Life and Reliability of Crane Metal Structures: Overview and Results","authors":"Lyudmila F. Moskvicheva, N. A. Chernyakova","doi":"10.17516/1999-494X-0147","DOIUrl":"https://doi.org/10.17516/1999-494X-0147","url":null,"abstract":"The results of research and a development retrospective of the regulatory framework for the design and calculation of crane metal structures are presented. The cause-and-effect complex of bridge crane failures is considered, as well as research directions within the framework of the computational and experimental complex in the field of strength, reliability, dynamics, and analysis of the stress-strain state of fatigue strength are analyzed. The results of experimental fatigue studies of samples and models of crane structures are presented. The methodology of calculations for crack resistance and reliability is given on the example of the support unit of the end beam of a bridge crane","PeriodicalId":17206,"journal":{"name":"Journal of Siberian Federal University: Engineering & Technologies","volume":"56 1","pages":"933-955"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84747301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Improving Safety of Shielding Chambers Equipped with Viewing Windows 提高装有观察窗的屏蔽室的安全性
Journal of Siberian Federal University: Engineering & Technologies Pub Date : 2020-12-01 DOI: 10.17516/1999-494X-0194
O. A. Kozin, T. Kulagina
{"title":"Improving Safety of Shielding Chambers Equipped with Viewing Windows","authors":"O. A. Kozin, T. Kulagina","doi":"10.17516/1999-494X-0194","DOIUrl":"https://doi.org/10.17516/1999-494X-0194","url":null,"abstract":"The article describes and proves the possibility of increasing the protection against neutron radiation for personnel by means of immersion liquid without major changes in the design of the equipment used and without reducing the safety of the radiation object. Studies of the components properties of the protection glass and the immersion liquid have shown that the properties of the immersion liquid reduce the dose rate of neutron radiation significantly compared to the protection glass, which is used for the main protection against ionizing radiation when working with uranium-plutonium fuels. The use of two-layer protection in viewing windows allows reducing the dose rate of mixed gamma-neutron radiation to values that do not exceed the safe radiation dose for personnel when working with an ionizing radiation source, which in this case is 50 kg of uranium-plutonium fuel","PeriodicalId":17206,"journal":{"name":"Journal of Siberian Federal University: Engineering & Technologies","volume":"38 1","pages":"956-964"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82065838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Process Modelling and Optimization of Green Lube Oil Synthesis 绿色润滑油合成工艺建模与优化
Journal of Siberian Federal University: Engineering & Technologies Pub Date : 2020-12-01 DOI: 10.17516/1999-494X-0281
U. O. Rasheed, A. Mohammed, Oluwasola Oribayo, T Samuel Ikuejawa
{"title":"Process Modelling and Optimization of Green Lube Oil Synthesis","authors":"U. O. Rasheed, A. Mohammed, Oluwasola Oribayo, T Samuel Ikuejawa","doi":"10.17516/1999-494X-0281","DOIUrl":"https://doi.org/10.17516/1999-494X-0281","url":null,"abstract":"Modeling and optimization of trans-esterification of palm kernel oil (PKO) to trimethylolpropone ester (TMP ester- a bio-lubricant) via palm kernel oil methyl ester (PKOME-a biodiesel) synthesis were investigated. The central composite design (CCD) component of the response surface methodology (RSM) was adopted for the optimization of the process parameters, where temperature and weight ratio of PKOME to TMP were held constant at 130 °C and 3.9 : 1 respectively, to generate 20 experimental runs. Bio-lubricant yield was calculated for each experimental run. A quadratic-like model was generated that related the yield to the process parameters (Reaction time, Stirring Speed, and Catalyst concentration). The predicted and actual R2 value were 0.9856 and 0.9959 respectively, which indicate an excellent agreement between experimental and predicted bio-lubricant yield. The predicted maximum bio-lubricant yield was 98.11 % at reaction time of 99.9084 mins, stirring speed of 863.794 rpm, and catalyst concentration 0.84522 wt. %. The experimental value obtained under same conditions was 96.996 %. Physico-chemical analysis of the bio-lubricant synthesized at optimum conditions were found to be within the range of the ASTM standard for bio-lubricants","PeriodicalId":17206,"journal":{"name":"Journal of Siberian Federal University: Engineering & Technologies","volume":"22 1","pages":"1002-1017"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82157414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
From the GOELRO Plan to Our Days 从GOELRO计划到我们的日子
Journal of Siberian Federal University: Engineering & Technologies Pub Date : 2020-12-01 DOI: 10.17516/1999-494X-0284
V. Lebedev
{"title":"From the GOELRO Plan to Our Days","authors":"V. Lebedev","doi":"10.17516/1999-494X-0284","DOIUrl":"https://doi.org/10.17516/1999-494X-0284","url":null,"abstract":"December 22, 2020 marks the 100th anniversary of the GOELRO plan, the development of which was initiated by V.I. Lenin was launched in February 1920, and in December of the same year at the VIII All-Russian Congress of Soviets of the RSFSR it was adopted. In this article, a direct participant in this process, Doctor of Technical Sciences, Professor, Honored Power Engineer of the Russian Federation V.M. Lebedev is a veteran of the power industry of the USSR and the Russian Federation. Shown are the separate stages of energy development in our country at different times in connection with this historical date – 100 years since the adoption of GOELRO. Personal observations were used during the period of his work in the USSR Ministry of Energy (38 years old) and in higher school (from 1995 to the present) in the training of future heat and power engineers. In addition, primary sources were used: the development of the GOELRO plan, articles by prominent energy scientists (participants in the development of the GOELRO plan), official statistics, public statements by state and public figures","PeriodicalId":17206,"journal":{"name":"Journal of Siberian Federal University: Engineering & Technologies","volume":"10 1","pages":"1034-1047"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77911725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Detection of Sub-Surface Objects Under Statistically Uneven Soil Surface by Parametric Radar Method 统计不均匀土壤表面下的参数雷达探测方法
Journal of Siberian Federal University: Engineering & Technologies Pub Date : 2020-12-01 DOI: 10.17516/1999-494X-0283
R. G. Shaydurov
{"title":"Detection of Sub-Surface Objects Under Statistically Uneven Soil Surface by Parametric Radar Method","authors":"R. G. Shaydurov","doi":"10.17516/1999-494X-0283","DOIUrl":"https://doi.org/10.17516/1999-494X-0283","url":null,"abstract":"The problem of sensing subsurface objects by the method of excitation of the earth’s surface by Rayleigh seismic waves and obtaining information about the displacement of the ground above the target by radar method, taking into account the electromagnetic parameters of the underlying soil in the frequency range of 10 GHz, is considered. Recommendations are given on the optimal operating frequency of the radar in operating conditions on a statistically uneven ground surface","PeriodicalId":17206,"journal":{"name":"Journal of Siberian Federal University: Engineering & Technologies","volume":"20 1","pages":"1028-1033"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78081203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermal Dissolution of Bituminous Coal in Heavy Coal Semicoking Tar and in Binary Blends with the Anthracene Oil 烟煤在重煤半焦焦油和与蒽油二元共混物中的热溶解
Journal of Siberian Federal University: Engineering & Technologies Pub Date : 2020-12-01 DOI: 10.17516/1999-494X-0282
P. N. Kuznetsov, B. Avid, X. Fan, N. V. Perminov, L. I. Kuznetsova, I. V. Korolkova
{"title":"Thermal Dissolution of Bituminous Coal in Heavy Coal Semicoking Tar and in Binary Blends with the Anthracene Oil","authors":"P. N. Kuznetsov, B. Avid, X. Fan, N. V. Perminov, L. I. Kuznetsova, I. V. Korolkova","doi":"10.17516/1999-494X-0282","DOIUrl":"https://doi.org/10.17516/1999-494X-0282","url":null,"abstract":"The effect of hydrorefining of heavy coal semicoking tar on its composition and efficiency for bituminous coal dissolution was studied. It was found that the concentration of the oxygen-bearing compounds decreased as a result of catalytic hydrotreating with hydrogen or with hydrogen donors. This resulted in improved dissolving power. However, best result in coal dissolution was achieved when heavy semicoking tar was blended with the anthracene oil. The products obtained represented at ambient temperature solid pitch-like matter with the softening points of 124 to 138 °С (“ring and ball” method). It was composed of mainly bi- and three-cyclic aromatics, the content of quinoline-insolubles being less than 6 %, and the ash content less than 0.5 %","PeriodicalId":17206,"journal":{"name":"Journal of Siberian Federal University: Engineering & Technologies","volume":"50 1","pages":"1018-1027"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88207640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of Electric Vehicles Motion Modes Influence on Traction Batteries Aging Based on WLTC 基于WLTC的电动汽车运动方式对牵引电池老化的影响分析
Journal of Siberian Federal University: Engineering & Technologies Pub Date : 2020-12-01 DOI: 10.17516/1999-494X-0279
N. Shchurov, A. A. Shtang, S. I. Dedov, Wu Xiaogang
{"title":"Analysis of Electric Vehicles Motion Modes Influence on Traction Batteries Aging Based on WLTC","authors":"N. Shchurov, A. A. Shtang, S. I. Dedov, Wu Xiaogang","doi":"10.17516/1999-494X-0279","DOIUrl":"https://doi.org/10.17516/1999-494X-0279","url":null,"abstract":"The paper considers the growth rates of electric vehicles, taking into account the development of electrochemical energy storage. The main lithium batteries aging mechanisms under conditions of uneven load and reversible nature of energy exchange processes with short modes of recharging batteries during regenerative braking are determined. To assess the aging of the lithium battery, the WLTC driving cycle was taken as a basis, in accordance with which the load on the electric vehicle energy storage unit the was formed. A Nissan Leaf equipped with energy storage units (ESU) of different energy intensity was adopted as a test sample. Current diagrams were obtained for one battery cell, minimum, average and maximum currents, as well as durations of traction, braking and stopping modes in various control modes of electric rolling stock are given. An assumption is made about the growth of the energy intensity of the ESU in the future period and its influence on the load of the storage battery is determined. On the basis of the data processing carried out, the main changes in the processes occurring in the power source, associated with an increase in the energy intensity of the ESU, have been revealed","PeriodicalId":17206,"journal":{"name":"Journal of Siberian Federal University: Engineering & Technologies","volume":"26 1","pages":"977-990"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79300263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Reducing the Time to Determine Content Radioactive Aerosols in the Air of Industrial Premises 缩短工业场所空气中放射性气溶胶含量测定时间
Journal of Siberian Federal University: Engineering & Technologies Pub Date : 2020-12-01 DOI: 10.17516/1999-494X-0276
T. Kulagina, S. A. Ivanov
{"title":"Reducing the Time to Determine Content Radioactive Aerosols in the Air of Industrial Premises","authors":"T. Kulagina, S. A. Ivanov","doi":"10.17516/1999-494X-0276","DOIUrl":"https://doi.org/10.17516/1999-494X-0276","url":null,"abstract":"The possibility of improving the methodology for measuring the content of radioactive aerosols in indoor air is considered, in terms of time reducing for determining the required parameters without serious changes in the design of the equipment applied and without reducing the safety of the radiation object itself. It is advisable to design a computational model that compares dynamics of the α-decay of a sample with a certain calibration curve of decay obtained for a given region. In this case, the time for determining the amount of technogenic radioactive aerosols in indoor air is reduced by 72 times","PeriodicalId":17206,"journal":{"name":"Journal of Siberian Federal University: Engineering & Technologies","volume":"17 4","pages":"965-976"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72602587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The Investigation of Coupling between Matching Circuit and Input Resonators of Channels in a Microstrip Diplexer 微带双工器中通道匹配电路与输入谐振器耦合的研究
Journal of Siberian Federal University: Engineering & Technologies Pub Date : 2020-11-01 DOI: 10.17516/1999-494x-0272
A. Afonin, Andrey A. Leksikov, A. A. Leksikov, I. V. Govorun, A. Serzhantov, A. Ugryumov
{"title":"The Investigation of Coupling between Matching Circuit and Input Resonators of Channels in a Microstrip Diplexer","authors":"A. Afonin, Andrey A. Leksikov, A. A. Leksikov, I. V. Govorun, A. Serzhantov, A. Ugryumov","doi":"10.17516/1999-494x-0272","DOIUrl":"https://doi.org/10.17516/1999-494x-0272","url":null,"abstract":"This paper deals with investigation of the coupling coefficients between the matching circuit and the input resonators of channels in a microstrip diplexer. Diplexer channels are two-section filters, and matching circuit is regular non-resonant segment of a microstrip line placed between input resonators of channels. The common port is connected to outer end of the segment and its second end is opened. Research was carried out theoretically using a computer program developed on the basis of mathematical expressions obtained by means of one-dimensional models and quasi-static approximation. The results show that a value of coupling is quite large and the use of the matching circuit in a form of a non-resonant segment of a microstrip line allows to design diplexers with wide fractional bandwidth of the channels","PeriodicalId":17206,"journal":{"name":"Journal of Siberian Federal University: Engineering & Technologies","volume":"48 4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75414958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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