Glavnyj mekhanik (Chief Mechanic)最新文献_第4页

Simulation of an automatic piloting system based on the MATLAB Simulink program for complex production automation 基于MATLAB Simulink的自动驾驶系统仿真程序，用于复杂生产自动化

Glavnyj mekhanik (Chief Mechanic) Pub Date : 2022-12-05 DOI: 10.33920/pro-2-2212-01

S. Yudachev, N. Gordienko, D. A. Gordienko, P. A. Monakhov, S. Sitnikov

{"title":"Simulation of an automatic piloting system based on the MATLAB Simulink program for complex production automation","authors":"S. Yudachev, N. Gordienko, D. A. Gordienko, P. A. Monakhov, S. Sitnikov","doi":"10.33920/pro-2-2212-01","DOIUrl":"https://doi.org/10.33920/pro-2-2212-01","url":null,"abstract":"The main conclusions of the convergence methods are given. The method of proportional approximation is described in detail. Structural schemes are presented: the block of formation of the control action, the block of the kinematic model of the three-contour control system of the object and the blocks of movement of the object \"target\" and the control object. The work was carried out in a package of application programs for solving MATLAB technical computing problems. The simulation process was performed in the MATLAB Simulink extension. The practical significance of the work is the study of the basic principles of modeling automatic control systems using various methods of convergence; the study of the method of proportional convergence, the creation of models of the movement of objects in the MATLAB Simulink application software package. This work can be used not only for teaching students in the field of development of electronic automatic control devices and for laboratory work, but also in the creation and design of real receiving radio navigation devices both in production and within higher education institutions. Familiarization and studies of the above software are conducted at the Department of Radioelectronic Systems and Complexes of one of the leading engineering universities of the Russian Federation – Bauman Moscow State Technical University.","PeriodicalId":415140,"journal":{"name":"Glavnyj mekhanik (Chief Mechanic)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121362027","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

Median algorithm for estimating the variance of intrinsic noise when detecting a signal with an unknown initial phase 中值算法用于在检测初始相位未知的信号时估计固有噪声的方差

Glavnyj mekhanik (Chief Mechanic) Pub Date : 2022-12-05 DOI: 10.33920/pro-2-2212-05

S. Yudachev, P. A. Monakhov, N. Gordienko, S. Sitnikov

{"title":"Median algorithm for estimating the variance of intrinsic noise when detecting a signal with an unknown initial phase","authors":"S. Yudachev, P. A. Monakhov, N. Gordienko, S. Sitnikov","doi":"10.33920/pro-2-2212-05","DOIUrl":"https://doi.org/10.33920/pro-2-2212-05","url":null,"abstract":"The article presents the finding of the dispersion of intrinsic noise distributed according to Rayleigh's law to find a signal with an unknown initial phase according to the Neumann- Pearson criterion. This algorithm is used for primary signal processing. The practical significance of the work is the study of the basics of programming in C and Python, comparison and identification of the advantages of this algorithm in comparison with the evaluation by the average value method. It also shows the finding of the threshold at which a decision is made to detect a useful signal. In this work, the integrated programming environment Visual studio was used – a popular environment for writing, debugging and compiling code. It also contains most of the libraries used, which simplify the writing of code. And Anaconda is a distribution for the Python programming language, which includes a set of free libraries, which is also freely available. Using the C language, the task of calculating data and filling it into an array was performed, Python was used for modeling, constructing histograms and comparing the results obtained with theoretical ones. This work can be used for teaching students of higher educational institutions for the purpose of familiarization. The optimal method is considered. Familiarization and study of these programming languages are conducted within the walls of one of the leading engineering universities of the Russian Federation, the Bauman Moscow State Technical University.","PeriodicalId":415140,"journal":{"name":"Glavnyj mekhanik (Chief Mechanic)","volume":"70 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121568738","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

Determination of the number of stripping passes when cutting metric threads on a shaft in a three-cam chuck 在三凸轮卡盘的轴上切削公制螺纹时剥离道数的测定

Glavnyj mekhanik (Chief Mechanic) Pub Date : 2022-12-05 DOI: 10.33920/pro-2-2212-03

V. A. Tuzhilkin, A. Brylev

引用次数: 0

The energy intensity of mechanical processing depending on the cutting modes on the example of longitudinal turning 以纵向车削为例，分析了切削方式对机械加工能量强度的影响

Glavnyj mekhanik (Chief Mechanic) Pub Date : 2022-12-05 DOI: 10.33920/pro-2-2212-02

M. A. Sundetov, S. Mukhambetov,, V.L. Kiselyov

引用次数: 0

Methods of programming of CNC machines 数控机床的编程方法

Glavnyj mekhanik (Chief Mechanic) Pub Date : 2022-12-05 DOI: 10.33920/pro-2-2212-06

S. Yudachev, S. Sitnikov, P. A. Monakhov, N. Gordienko

{"title":"Methods of programming of CNC machines","authors":"S. Yudachev, S. Sitnikov, P. A. Monakhov, N. Gordienko","doi":"10.33920/pro-2-2212-06","DOIUrl":"https://doi.org/10.33920/pro-2-2212-06","url":null,"abstract":"Methods of calculating the sine in a programmable logic integrated circuit are considered and investigated. Conclusions are given based on the technical characteristics of the devices and the capacity of a particular method. Models were created in C++ and Verilog languages, worked out and analyzed. The results of the models are presented in the form of graphs. Mathematical calculations are given that make it possible to implement the method of calculating the sine in a programmable logic integrated circuit in the most optimal way from the point of view of using equipment. The synthesis and layout of the equipment were carried out, the area of the crystal occupied by the calculation module is presented in the form of a figure. This work can be used to train students of higher educational institutions in order to familiarize and develop skills of working with FPGAs, as well as modeling and studying the principles of choosing a particular mathematical method, can find its application in the creation and design of real devices in production. Familiarization and study of this radar method are conducted within the walls of one of the leading engineering universities of the Russian Federation — Bauman Moscow State Technical University.","PeriodicalId":415140,"journal":{"name":"Glavnyj mekhanik (Chief Mechanic)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128111109","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 the efficiency of rotary vane machines 提高旋片机的效率

Glavnyj mekhanik (Chief Mechanic) Pub Date : 2022-10-07 DOI: 10.33920/pro-2-2211-04

S. N. Prudnikov, A. V. Novgorodskaya, V. Yarots, N. Savko

引用次数: 0

Study of the influence of combined processing on the structure and properties of electrospark coatings on low-carbon steel using a self-fluxing special electrode 用自熔专用电极研究复合加工对低碳钢电火花涂层组织和性能的影响

Glavnyj mekhanik (Chief Mechanic) Pub Date : 2022-10-07 DOI: 10.33920/pro-2-2211-02

O. Gubanov, V. Gadalov, A. Filonovich, P. Shirobokov

引用次数: 0

Determination of the error from elastic deformations of the technological system by the finite element method 用有限元法确定工艺系统弹性变形误差

Glavnyj mekhanik (Chief Mechanic) Pub Date : 2022-10-07 DOI: 10.33920/pro-2-2211-03

A. V. Lyubimtseva, A. V. Zaitsev

引用次数: 0

Techno-heraldry of Donbass cities 顿巴斯城市的技术纹章

Glavnyj mekhanik (Chief Mechanic) Pub Date : 2022-10-07 DOI: 10.33920/pro-2-2211-06

V. Martynenko, A. Zharov, V. Sidorov

{"title":"Techno-heraldry of Donbass cities","authors":"V. Martynenko, A. Zharov, V. Sidorov","doi":"10.33920/pro-2-2211-06","DOIUrl":"https://doi.org/10.33920/pro-2-2211-06","url":null,"abstract":"A feature of the coats of arms of the cities of Donbass is the presence of technical symbols (hammers, gears, adjustable and other wrenches, railway wheelset, pencil, anchors, copras, cowpers, etc.) and industrial landscapes that reflect the industrial specifics of the region. So it was at each of the stages of heraldic reforms and will remain a good tradition at the next stage. The coat of arms is an emblem, a distinctive sign on which objects are depicted symbolizing the owner of the coat of arms (a person, estate, clan, city, country, etc.). The creation of a coat of arms is subject to certain rules, the observance of which is mandatory. And if at the stage associated with the «Charter to Cities» approved by Catherine the Second, these rules were followed, then at the next stage in the 60-80s of the 20th century, the mass appearance of city emblems took place using a more conceptual and creative approach. You can meet the incorrect use of colors, the images are too small, which makes it difficult to read and understand the coat of arms. Such a wide appearance of coats of arms was prompted by the 100th anniversaries of the cities of Donbass, which fell at that time. The article presents three stories of the creation of the coats of arms of the cities of the Donetsk region of this particular stage. A new stage of «heraldic reform» is envisaged.","PeriodicalId":415140,"journal":{"name":"Glavnyj mekhanik (Chief Mechanic)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121479750","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

Industrial automation. Non-standard examples of import substitution 工业自动化。进口替代的非标准例子

Glavnyj mekhanik (Chief Mechanic) Pub Date : 2022-10-07 DOI: 10.33920/pro-2-2211-01

S. Emelyanov

引用次数: 0