Vestnik Brianskogo gosudarstvennogo universiteta最新文献_第4页

The strength assessment of the anchor rope support of the machine for logging on the slope 斜坡上采录机锚索支架强度评估

Vestnik Brianskogo gosudarstvennogo universiteta Pub Date : 2023-03-25 DOI: 10.22281/2413-9920-2023-09-01-112-120

A. Khimich

引用次数: 0

Control of ropes during the operation of machines with rope traction 用绳索牵引机器运行时对绳索的控制

Vestnik Brianskogo gosudarstvennogo universiteta Pub Date : 2022-12-25 DOI: 10.22281/2413-9920-2022-08-04-330-338

A. Panfilov, A. Korotkiy, B. Ivanov, A. Yusupov

引用次数: 0

Physical-mathematical modeling of friction, adhesion and cohesion processes in the problem of soil stickiness 土粘性问题中摩擦、粘附和黏聚过程的物理数学建模

Vestnik Brianskogo gosudarstvennogo universiteta Pub Date : 2022-12-25 DOI: 10.22281/2413-9920-2022-08-04-339-347

L. Sladkova, P. A. Grigorev

{"title":"Physical-mathematical modeling of friction, adhesion and cohesion processes in the problem of soil stickiness","authors":"L. Sladkova, P. A. Grigorev","doi":"10.22281/2413-9920-2022-08-04-339-347","DOIUrl":"https://doi.org/10.22281/2413-9920-2022-08-04-339-347","url":null,"abstract":"The stickiness of soils is a huge problem in the development of earthmoving machines by working bodies, which leads to an increase in maintenance efforts, a decrease in productivity and, as a result, an increase in economic costs. The process of sticking itself has not been fully studied and is of interest from the point of view of its mathematical description, which makes it possible to reveal not only its physical nature, but also to find certain relations and dependencies when assessing the stress-strain state during the destruction of a soil mass. In the article, based on the mathematical apparatus and the energetic essence of soil destruction, the phenomenon of soil stickiness was investigated based on the adhesive-cohesive forces and friction forces arising on the surface of the working body during soil excavation. Based on the theory of modeling the physical processes occurring during soil excavation, the authors obtained dependencies that allow us to find the relationship between the normal and tangential component of stresses arising from the destruction of the soil mass. The obtained dependencies will allow us to develop technical solutions to combat the sticking of soil on the surfaces of the working bodies of earthmoving machines.","PeriodicalId":34506,"journal":{"name":"Vestnik Brianskogo gosudarstvennogo universiteta","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90489560","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

Theoretical investigations of snow particles movement in vertical feeder of rotary snow blower 旋转式吹雪机垂直给料器中雪粒运动的理论研究

Vestnik Brianskogo gosudarstvennogo universiteta Pub Date : 2022-12-25 DOI: 10.22281/2413-9920-2022-08-04-263-274

D. Aleshkov, P. Korchagin, I. Teterina

{"title":"Theoretical investigations of snow particles movement in vertical feeder of rotary snow blower","authors":"D. Aleshkov, P. Korchagin, I. Teterina","doi":"10.22281/2413-9920-2022-08-04-263-274","DOIUrl":"https://doi.org/10.22281/2413-9920-2022-08-04-263-274","url":null,"abstract":"The paper considers the description of the movement of a snow particle in a vertical feeder of a rotary snow blower, taking into account the impact phenomenon. The main purpose of the presented studies is to determine the general patterns when a snow particle hits a fixed shell of a vertical feeder, as well as to substantiate the conditions for the end of the impact and the transition to describing the motion of a snow particle by equations that do not take into account impact effects. To achieve this goal, a one-factor numerical experiment was carried out, in which the variable parameter was the value of the velocity recovery coefficient upon impact. As a result, possible trajectories of the movement of a snow particle, the nature of the change in the speed of movement of a snow particle, due to emerging impacts on a fixed surface, are obtained, as well as a condition is proposed that can be used as a condition for the end of the impact and consideration of further impactless particle motion. A comparison is made between the shock pulse and the pulse of the normal reaction of a vertical wall. An algorithm for determining the motion of a snow particle in the presence of one non-retaining bond and taking into account its impact is proposed.","PeriodicalId":34506,"journal":{"name":"Vestnik Brianskogo gosudarstvennogo universiteta","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81122158","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

Results of dynamic simulation of the lateral stability of a light van when curvilinear movement 曲线运动时轻型货车横向稳定性的动态仿真结果

Vestnik Brianskogo gosudarstvennogo universiteta Pub Date : 2022-12-25 DOI: 10.22281/2413-9920-2022-08-04-322-329

G. S. Nikitin, T. N. Win

{"title":"Results of dynamic simulation of the lateral stability of a light van when curvilinear movement","authors":"G. S. Nikitin, T. N. Win","doi":"10.22281/2413-9920-2022-08-04-322-329","DOIUrl":"https://doi.org/10.22281/2413-9920-2022-08-04-322-329","url":null,"abstract":"The article presents the results of developing a methodology and implementing dynamic modeling in the SolidWorks Motion 2016 software environment for changing the body roll angle of the Gazelle Next van during active maneuvering and turning using a lever-electromagnetic stabilization system in comparison with a lever stabilizer system. A dynamic modeling technique was developed to analyze the change in the roll angle of the Gazelle NEXT all-metal van in the driving mode when turning and intensive maneuvering with a lever and using a lever-electromagnetic stabilization system). As a result of the research, a decrease in the roll angle of the Gazelle Next all-metal van was revealed in driving modes with active maneuvering and cornering using the lever-electromagnetic stabilization system relative to that installed on the example of the Gazelle NEXT — lever. The proposed method of dynamic modeling proved the effectiveness of using a lever-electromagnetic stabilization system when turning and active maneuvering, compared with standard lever stabilizers based on a comparison of the roll angles of the first and second options.","PeriodicalId":34506,"journal":{"name":"Vestnik Brianskogo gosudarstvennogo universiteta","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80092096","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 the operation of a device for installing outriggers of self-propelled chassis of mobile transport and reloading rope complexes 一种移动运输车自行式底盘外伸臂安装装置的操作分析及重装绳索复合体

Vestnik Brianskogo gosudarstvennogo universiteta Pub Date : 2022-12-25 DOI: 10.22281/2413-9920-2022-08-04-299-309

A. Lagerev, I. Lagerev

{"title":"Analysis of the operation of a device for installing outriggers of self-propelled chassis of mobile transport and reloading rope complexes","authors":"A. Lagerev, I. Lagerev","doi":"10.22281/2413-9920-2022-08-04-299-309","DOIUrl":"https://doi.org/10.22281/2413-9920-2022-08-04-299-309","url":null,"abstract":"Single-span mobile ropeways of the pendulum type, formed with the help of two mobile transport and reloading rope complexes connected by a single rope system on the basis of self-propelled wheeled chassis of high cross-country ability and carrying capacity, are currently considered as a promising type of transporting equipment for solving many tasks in adverse natural and social situations. The article is devoted to an important technical task of ensuring the safe operation of rope complexes associated with the loss of overall stability and overturning of the wheeled chassis under conditions of significant operational loads from the tension of the rope system, creating an overturning moment. The original design of the device for the installation of outriggers is presented in detail, providing automated execution of the necessary technological work. The developed method of designing this device is based on the analysis of the kinematics of the movable structural elements of the device, which allowed us to establish the calculated dependencies for determining the main structural dimensions. The considered design and design methodology can be used in the creation of transport and technological machines of other functional purposes, during the operation of which situations of loss of overall stability and overturning are possible.","PeriodicalId":34506,"journal":{"name":"Vestnik Brianskogo gosudarstvennogo universiteta","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80995690","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

Regenerative braking control algorithm using the accelerator pedal 利用加速踏板的再生制动控制算法

Vestnik Brianskogo gosudarstvennogo universiteta Pub Date : 2022-12-25 DOI: 10.22281/2413-9920-2022-08-04-275-281

D. Butarovich, G. Skotnikov, A. Eranosyan

{"title":"Regenerative braking control algorithm using the accelerator pedal","authors":"D. Butarovich, G. Skotnikov, A. Eranosyan","doi":"10.22281/2413-9920-2022-08-04-275-281","DOIUrl":"https://doi.org/10.22281/2413-9920-2022-08-04-275-281","url":null,"abstract":"Modern manufacturers of electric vehicles everywhere introduce regenerative braking control using the accelerator pedal. One of the difficulties in implementing regenerative braking is the interaction of the service braking system and the auxiliary one using a traction motor. In this regard, the concept of regenerative braking control with one pedal – the accelerator pedal. Currently, a similar concept is presented on many modern electric cars, such as the Tesla Model S, Tesla Model X, Hyundai Kona. The aim of study is the creation and subsequent debugging of an algorithm for controlling regenerative braking using the accelerator pedal in relation to urban public electric transport. The developed algorithm is implemented in the MATLAB/Simulink simulation environment. Using the available blocks and subsystems, a mathematical model of the movement of an electric vehicle has been compiled. A mathematical model of the movement of electric vehicle has been developed that allows testing and debugging of the algorithms being developed. Simulation methods have confirmed the operability of the proposed method of regenerative braking control by the accelerator pedal. The scientific novelty of the research lies in the synthesis of an algorithm for controlling regenerative braking in relation to the operation of public electric transport in an urban environment with frequent stops, traffic on roads with slopes and starting to climb. The practical utility (value) of this research lies in the possibility of using the proposed control algorithm in urban public electric transport with on-board energy storage, for example, in electric buses.","PeriodicalId":34506,"journal":{"name":"Vestnik Brianskogo gosudarstvennogo universiteta","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72885898","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

Multivariate calculation of the lifting mechanism of a bridge-type crane on a computer 桥式起重机起升机构的计算机多元计算

Vestnik Brianskogo gosudarstvennogo universiteta Pub Date : 2022-12-25 DOI: 10.22281/2413-9920-2022-08-04-282-290

P. Vitchuk, V. Ermolenko, I.D. Stadnikova, N. A. Martynov, O.P. Poryvaev

{"title":"Multivariate calculation of the lifting mechanism of a bridge-type crane on a computer","authors":"P. Vitchuk, V. Ermolenko, I.D. Stadnikova, N. A. Martynov, O.P. Poryvaev","doi":"10.22281/2413-9920-2022-08-04-282-290","DOIUrl":"https://doi.org/10.22281/2413-9920-2022-08-04-282-290","url":null,"abstract":"The mechanism for lifting the load of bridge-type cranes, as a rule, is placed on a cargo trolley moving along the crane bridge. The weight of the cargo trolley and the weight of the load create a bending moment on the bridge. The bending moment is the main force factor in the calculation of the metal structure of the crane, that is, its value largely determines the metal capacity of the crane. Therefore, minimizing the weight and size parameters of the lifting mechanism is one of the most important tasks in the design of bridge cranes. In the classical methods of calculating the mechanism for lifting the load of a bridge type crane, the elements of the mechanism are selected on the basis of their sequential calculation, taking into account the corresponding safety factors. This approach does not imply variation in the parameters of the lifting mechanism and does not allow achieving its minimum weight and size indicators. Minimizing the weight and size parameters of the lifting mechanism of a bridge-type crane can be provided by comparing various variants of its layout schemes. This can be achieved on the basis of multivariate calculation. Obviously, the multivariate calculation of the lifting mechanism of a bridge-type crane increases the amount of calculations and is very time-consuming to implement manually. This determines the relevance of developing a methodology for multivariate calculation of the mechanism for lifting the load of a bridge type crane and a computer program that implements it. The paper presents a methodology for multivariate calculation of the load lifting mechanism, which allows varying the multiplicity of the cargo polispast, the displacement step according to the classification group of the operating mode of the drum diameter selection coefficient and the minimum rope utilization coefficient, as well as the computer program that implements this methodology.","PeriodicalId":34506,"journal":{"name":"Vestnik Brianskogo gosudarstvennogo universiteta","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74916532","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

Development of an automated information system according to the assessment of the volume of accumulation of solid municipal waste 根据城市固体废物累积量的评估，开发自动化信息系统

Vestnik Brianskogo gosudarstvennogo universiteta Pub Date : 2022-12-25 DOI: 10.22281/2413-9920-2022-08-04-357-363

I. Lagerev, D. Perminova

引用次数: 0

Productivity of cargo mobile ropeways based on coupled mobile transport and overloading rope complexes 基于耦合移动运输和超载绳索复合体的货物移动索道生产率

Vestnik Brianskogo gosudarstvennogo universiteta Pub Date : 2022-12-25 DOI: 10.22281/2413-9920-2022-08-04-310-321

A. Lagerev, V. Tarichko, I. Lagerev

{"title":"Productivity of cargo mobile ropeways based on coupled mobile transport and overloading rope complexes","authors":"A. Lagerev, V. Tarichko, I. Lagerev","doi":"10.22281/2413-9920-2022-08-04-310-321","DOIUrl":"https://doi.org/10.22281/2413-9920-2022-08-04-310-321","url":null,"abstract":"Single-span mobile pendulum-type ropeways formed by two coupled self-propelled wheeled chassis of high load capacity and cross-country capability are a promising type of transport and reloading equipment under difficult operating conditions. This article discusses the problem of assessing the weight productivity of such mobile ropeways under various technological options and modes of their operation. A computational method for determining the productivity within the area of the possible use of mobile ropeways is presented, characterized by the magnitude of the span and the angle of inclination of the line of the carrying-traction rope between the terminal points of the route, as well as the weight of the transported cargo. It is shown that the weight productivity significantly depends on the duration of loading and reloading operations and therefore is a variable characteristic of a mobile ropeway, depending on the specific operating conditions (used lifting and rigging equipment, the qualifications of the service personnel, the weight and configuration of the transported cargo, the availability of storage sites, etc.).","PeriodicalId":34506,"journal":{"name":"Vestnik Brianskogo gosudarstvennogo universiteta","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77721490","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