Journal of Mathematics, Mechanics and Computer Science最新文献

GLOBAL SOLVABILITY OF INVERSE PROBLEM FOR LINEAR KELVIN-VOIGT EQUATIONS WITH MEMORY 具有记忆的线性kelvin-voigt方程反问题的全局可解性

Journal of Mathematics, Mechanics and Computer Science Pub Date : 2023-06-01 DOI: 10.26577/jmmcs.2023.v118.i2.04

A. Shakir

引用次数: 0

KINETOSTATIC CALCULATION OF A HIGH CLASS LIFTING MECHANISM (BY ASSUR CLASSIFICATION) OF A TECHNOLOGICAL LOAD-LIFTING MACHINE 某型工艺起重机械高档起重机构(按分类)的动静力学计算

Journal of Mathematics, Mechanics and Computer Science Pub Date : 2023-06-01 DOI: 10.26577/jmmcs.2023.v118.i2.06

U. T. Abdrakhimov, A. A. Akimkhanova

{"title":"KINETOSTATIC CALCULATION OF A HIGH CLASS LIFTING MECHANISM (BY ASSUR CLASSIFICATION) OF A TECHNOLOGICAL LOAD-LIFTING MACHINE","authors":"U. T. Abdrakhimov, A. A. Akimkhanova","doi":"10.26577/jmmcs.2023.v118.i2.06","DOIUrl":"https://doi.org/10.26577/jmmcs.2023.v118.i2.06","url":null,"abstract":"To improve the technical level of mechanical engineering, it is necessary to expand the technical capabilities of equipment and devices, existing structures, as well as equipping them with fundamentally new mechanisms. The creation of new designs of machines and mechanisms requires the design of lever mechanisms of high classes, the working bodies of which can reproduce complex movements and trajectories. Due to the presence of movable, variable closed hinge-lever contours, lever mechanisms of high classes, unlike traditional lever mechanisms with lower pairs, perceive heavy loads, have increased rigidity. On the basis of a high-class rectilinear guiding mechanism, a lever mechanism has been designed that can be used in lifting machines and mechanisms. An important machine kinetics section is the force analysis of mechanisms by the given laws of motion of the initial elements and known external forces applied to the mechanism segments. The paper proposes a new design of a lifting mechanism, the peculiarity of which is that it belongs to the high-class Assur group by its structure, which causes ease of operation and reliability of the design. For this design, a synthesis of the mechanism was carried out in [1], and now a force analysis of this mechanism is being performed using the Academician U.A. Dzholdasbekov method of introducing auxiliary points.","PeriodicalId":423127,"journal":{"name":"Journal of Mathematics, Mechanics and Computer Science","volume":"105 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133136148","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

THE CRANK-SLIDER MECHANISM FUNCTIONALITY 曲柄滑块机构功能

Journal of Mathematics, Mechanics and Computer Science Pub Date : 2023-06-01 DOI: 10.26577/jmmcs.2023.v118.i2.08

A. Tuleshov, Yuriy Drakunov, B. Akhmetova, M. Kuatova, A. Shadymanova

引用次数: 0

On one-dimensional Helmholtz equation 一维亥姆霍兹方程

Journal of Mathematics, Mechanics and Computer Science Pub Date : 2023-06-01 DOI: 10.26577/jmmcs.2023.v118.i2.03

N. Kakharman

{"title":"On one-dimensional Helmholtz equation","authors":"N. Kakharman","doi":"10.26577/jmmcs.2023.v118.i2.03","DOIUrl":"https://doi.org/10.26577/jmmcs.2023.v118.i2.03","url":null,"abstract":"ON ONE-DIMENSIONAL HELMHOLTZ EQUATION The study of time-periodic solutions of the multidimensional wave equation on the entire 3D space is an important ﬁeld of research in applied mathematics. It is known that this study leads to the Sommerfeld radiation condition at inﬁnity. The radiation condition states that for a solution to a one-dimensional wave equation, such as the Helmholtz equation or the wave equation, to represent an outgoing wave at inﬁnity. The Helmholtz equation in 1D, which models the propagation of electromagnetic waves in systems eﬀectively reduced to one dimension, is equivalent to the time-independent Schrodinger equation. The one-dimensional Helmholtz potential is widely used in various areas of physics and engineering, such as electromagnetics, acoustics, and quantum mechanics. The Sommerfeld problem in the one-dimensional case requires special investigation, and the radiation conditions in the one-dimensional case diﬀer from those in the multidimensional case. These diﬀerences are related to the peculiarities of the fundamental solutions. In this paper, we constructed the fundamental solution of the one-dimensional Helmholtz equation. Then, we found the boundary conditions for the one-dimensional Helmholtz potential. Finally, the equivalent conditions with Sommerfeld radiation conditions were found for the one-dimensional Helmholtz equation.","PeriodicalId":423127,"journal":{"name":"Journal of Mathematics, Mechanics and Computer Science","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132425525","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

OPTIMAL METHOD FOR SOLVING SPECIAL CLASSES OF SYSTEMS OF NONLINEAR EQUATIONS OF THE SECOND DEGREE 一类特殊的二阶非线性方程组的最优解

Journal of Mathematics, Mechanics and Computer Science Pub Date : 2023-06-01 DOI: 10.26577/jmmcs.2023.v118.i2.02

A. Bayzhumanov

引用次数: 0

PHYSICAL AND MECHANICAL STATE OF CANTILEVER TRIANGULAR PLATES 悬臂三角形板的物理力学状态

Journal of Mathematics, Mechanics and Computer Science Pub Date : 2023-06-01 DOI: 10.26577/jmmcs.2023.v118.i2.07

S. Akhmediyev, O. Khabidolda, N. Vatin, G. Yessenbayeva, R. Muratkhan, С.К. Ахмадиев, Ө. Хабидолда, Н.И. Ватин, Гульсима Ахмадиевна Есенбаева, Р. Муратхан, Қазақстан Қарағанды Ә. Сағынов атындағы Қарағанды техникалық университ, Қазақстан Қарағанды қ. Академик Е.А. Бөкетов атындағы Қарағанды университ, С.К. Ахмедиев, O. Хабидолда

{"title":"PHYSICAL AND MECHANICAL STATE OF CANTILEVER TRIANGULAR PLATES","authors":"S. Akhmediyev, O. Khabidolda, N. Vatin, G. Yessenbayeva, R. Muratkhan, С.К. Ахмадиев, Ө. Хабидолда, Н.И. Ватин, Гульсима Ахмадиевна Есенбаева, Р. Муратхан, Қазақстан Қарағанды Ә. Сағынов атындағы Қарағанды техникалық университ, Қазақстан Қарағанды қ. Академик Е.А. Бөкетов атындағы Қарағанды университ, С.К. Ахмедиев, O. Хабидолда","doi":"10.26577/jmmcs.2023.v118.i2.07","DOIUrl":"https://doi.org/10.26577/jmmcs.2023.v118.i2.07","url":null,"abstract":"In this paper, the bending of cantilever triangular plates at the same angles of inclination of the side edges to the base is investigated. Due to the complexity of the boundary conditions, a numerical ﬁnite diﬀerence method is applied using a grid of scalene triangles that ﬁts well into the contour of the plate. To solve the problem of an acute angle at the top of the plate, the method of combining the results of calculating a cantilever bar of variable bending stiﬀness with similar results of calculating a triangular plate supported along the contour using a reduction factor is applied. The results of deﬂections of the cantilever triangular plate at diﬀerent angles of inclination of the side edges to the base are given. The theoretical provisions and applied results of this study can be used both in scientiﬁc research and in engineering design.","PeriodicalId":423127,"journal":{"name":"Journal of Mathematics, Mechanics and Computer Science","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125282168","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

FINITE ELEMENT METHOD SCHEMES OF HIGHER ACCURACY FOR SOLVING NON-STATIONARY FOURTH-ORDER EQUATIONS 求解非平稳四阶方程精度较高的有限元方法

Journal of Mathematics, Mechanics and Computer Science Pub Date : 2023-06-01 DOI: 10.26577/jmmcs.2023.v118.i2.05

D. Utebaev, Kh. L. Atadjanov, Zhusipbay Nurullaev

引用次数: 0

INFORMATION AND ANALYTICAL SYSTEM FOR ASSESSING THE HEALTH STATUS OF STUDENTS 学生健康状况评估信息与分析系统

Journal of Mathematics, Mechanics and Computer Science Pub Date : 2023-06-01 DOI: 10.26577/jmmcs.2023.v118.i2.09

G. Tyulepberdinova, T. Sarsembayeva, S. Adilzhanova, S. Issabayeva

引用次数: 0

ON THE BOUNDEDNESS OF A GENERALIZED FRACTIONAL-MAXIMAL OPERATOR IN LORENTZ SPACES 洛伦兹空间中广义分数极大算子的有界性

Journal of Mathematics, Mechanics and Computer Science Pub Date : 2023-06-01 DOI: 10.26577/jmmcs.2023.v118.i2.01

А.N. Abek, M.Zh, Turgumbayev, Z. R. Suleimenova, А.Н. Абек, М.Ж. Тургумбаев, З.Р. Сулейменова, Евразийский национальный, Казахстан г. Астана Л.Н. Гумилева, Карагандинский университет имени, Казахстан г. Караганда Е.А. Букетова

引用次数: 0

DEVELOPMENT OF METHODS AND ALGORITHMS FOR ESTIMATING THE TEMPERATURE DISTRIBUTION IN THE BODY OF A RECTANGULAR PARALLELEPIPED SHAPE UNDER THE INFLUENCE OF HEAT FLOW AND THE PRESENCE OF HEAT EXCHANGE 发展了在热流和热交换作用下估算矩形平行六面体内部温度分布的方法和算法

Journal of Mathematics, Mechanics and Computer Science Pub Date : 2023-03-01 DOI: 10.26577/jmmcs.2023.v117.i1.07

A. Tashev, R. Kazykhan, B. Aitbayeva

引用次数: 0