发布求助
文献互助 智能选刊 最新文献

Moscow University Mechanics Bulletin最新文献

筛选
英文 中文
Flows of Thin Perfectly Rigid-Plastic Bodies: Dynamic Modes and Necking
IF 0.3
Moscow University Mechanics Bulletin Pub Date : 2025-03-25 DOI: 10.3103/S0027133025700025
D. V. Georgievskii, I. M. Tsvetkov
{"title":"Flows of Thin Perfectly Rigid-Plastic Bodies: Dynamic Modes and Necking","authors":"D. V. Georgievskii,&nbsp;I. M. Tsvetkov","doi":"10.3103/S0027133025700025","DOIUrl":"10.3103/S0027133025700025","url":null,"abstract":"<p>The presented review consists of two parts. The first one is devoted to research generalizing the classical Prandtl problem in the case of taking into account the inertia of the convergence of rigid plates and dynamic effects occurring in a thin perfect rigid plastic layer. The second part examines the work related to the formation and development of the neck in plastic materials under quasi-static and dynamic loading. In particular, attention is paid to thin solids with a perturbed boundary shape, which have technological significance. The presence of a small geometric parameter allows using the asymptotic methods.</p>","PeriodicalId":710,"journal":{"name":"Moscow University Mechanics Bulletin","volume":"79 6","pages":"190 - 199"},"PeriodicalIF":0.3,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698608","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
Safety of Space Flights 太空飞行的安全
IF 0.3
Moscow University Mechanics Bulletin Pub Date : 2025-03-25 DOI: 10.3103/S0027133025700050
A. A. Shamina, A. V. Zvyagin, N. N. Smirnov, V. V. Tyurenkova, E. I. Skryleva
{"title":"Safety of Space Flights","authors":"A. A. Shamina,&nbsp;A. V. Zvyagin,&nbsp;N. N. Smirnov,&nbsp;V. V. Tyurenkova,&nbsp;E. I. Skryleva","doi":"10.3103/S0027133025700050","DOIUrl":"10.3103/S0027133025700050","url":null,"abstract":"<p>The safety of space flights is one of the topical issues. It combines a large number of different tasks. The Chair of Gas and Wave Dynamics presents several areas of work in this field. A study of cracks is proposed, because their appearance in the spacecraft skin can lead to an accident. A large number of experiments are being conducted on the ISS to refine mathematical models of media and processes, as well as the physical constants included in them. So, in emergency situations, fires may occur on the ISS. For their modeling, the cases of the presence of both one and several independent gross reactions describing the chemical interaction of an oxidizer with a fuel are considered. The results were compared with FLEX experiments on the combustion of single droplets in zero gravity. In order to refine the filtration models, experiments conducted under microgravity conditions have been studied.</p>","PeriodicalId":710,"journal":{"name":"Moscow University Mechanics Bulletin","volume":"79 6","pages":"224 - 231"},"PeriodicalIF":0.3,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698606","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 Studies of the School of L.I. Sedov at the Chair of Hydromechanics 列-伊-塞多夫学校水力学教研室的发展情况
IF 0.3
Moscow University Mechanics Bulletin Pub Date : 2025-03-25 DOI: 10.3103/S0027133025700013
A. V. Aksenov, A. N. Golubyatnikov
{"title":"Development of Studies of the School of L.I. Sedov at the Chair of Hydromechanics","authors":"A. V. Aksenov,&nbsp;A. N. Golubyatnikov","doi":"10.3103/S0027133025700013","DOIUrl":"10.3103/S0027133025700013","url":null,"abstract":"<p>An overview of recent works in the field of gas dynamics and plasma dynamics, which were initiated by Academician L.I. Sedov and his descendants, is given. An analytical study of the equations was carried out, exact solutions were constructed, and the problem of energy-momentum concentration was solved. Higher invariants of characteristics for a system of equations of one-dimensional gas dynamics in Eulerian and Lagrangian variables for special adiabatic exponents are found. Based on the use of higher invariants of characteristics, the solution of the Cauchy problem is reduced to a system of ordinary differential equations. Two Cauchy problems are presented, the solutions of which exist indefinitely without a gradient catastrophe.</p>","PeriodicalId":710,"journal":{"name":"Moscow University Mechanics Bulletin","volume":"79 6","pages":"183 - 189"},"PeriodicalIF":0.3,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698607","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
Cosmic Gasdynamic Studies at the Chair of Aeromechanics and Gas Dynamics 空气力学和气体动力学教席的宇宙气体动力学研究
IF 0.3
Moscow University Mechanics Bulletin Pub Date : 2025-03-25 DOI: 10.3103/S0027133025700049
K. V. Krasnobaev, V. V. Izmodenov
{"title":"Cosmic Gasdynamic Studies at the Chair of Aeromechanics and Gas Dynamics","authors":"K. V. Krasnobaev,&nbsp;V. V. Izmodenov","doi":"10.3103/S0027133025700049","DOIUrl":"10.3103/S0027133025700049","url":null,"abstract":"<p>Problems related to cosmic gasdynamic studies at the Chair of Aeromechanics and Gasdynamics of Lomonosov Moscow State University are discussed. We give main directions and methods of the space studies at our chair. Results of the developed theoretical models describing and predicting physical phenomena in space are presented in details. The models include the interaction of the solar wind with the local interstellar medium and comet atmospheres, motions of the interstellar medium under nonequilibrium ionization.</p>","PeriodicalId":710,"journal":{"name":"Moscow University Mechanics Bulletin","volume":"79 6","pages":"212 - 223"},"PeriodicalIF":0.3,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698610","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
Chair of Theoretical Mechanics and Mechatronics 理论力学和机电一体化教席
IF 0.3
Moscow University Mechanics Bulletin Pub Date : 2025-03-25 DOI: 10.3103/S0027133025700037
D. V. Treschev, E. I. Kugushev, T. V. Shakhova, S. V. Bolotin, Yu. F. Golubev, V. A. Samsonov, Yu. D. Selyutskiy
{"title":"Chair of Theoretical Mechanics and Mechatronics","authors":"D. V. Treschev,&nbsp;E. I. Kugushev,&nbsp;T. V. Shakhova,&nbsp;S. V. Bolotin,&nbsp;Yu. F. Golubev,&nbsp;V. A. Samsonov,&nbsp;Yu. D. Selyutskiy","doi":"10.3103/S0027133025700037","DOIUrl":"10.3103/S0027133025700037","url":null,"abstract":"<p>In the paper, scientific and pedagogical activities of the Chair of Theoretical Mechanics and Mechatronics of the Faculty of Mechanics and Mathematics of Lomonosov Moscow State University have been described. Some scientific results obtained in recent years by current employees and the most significant scientific results of former employees of the chair have been presented.</p>","PeriodicalId":710,"journal":{"name":"Moscow University Mechanics Bulletin","volume":"79 6","pages":"200 - 211"},"PeriodicalIF":0.3,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698609","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
Galvanic Correction of Neural Control of Gaze Stabilization, Part 2 注视稳定神经控制的电校正，第2部分
IF 0.3
Moscow University Mechanics Bulletin Pub Date : 2025-01-16 DOI: 10.3103/S0027133024700201
V. A. Sadovnichii, V. V. Aleksandrov, J. L. Gordillo-Dominguez, A. A. Konovalenko, P. Yu. Sukhochev, K. V. Tikhonova, N. E. Shulenina
{"title":"Galvanic Correction of Neural Control of Gaze Stabilization, Part 2","authors":"V. A. Sadovnichii,&nbsp;V. V. Aleksandrov,&nbsp;J. L. Gordillo-Dominguez,&nbsp;A. A. Konovalenko,&nbsp;P. Yu. Sukhochev,&nbsp;K. V. Tikhonova,&nbsp;N. E. Shulenina","doi":"10.3103/S0027133024700201","DOIUrl":"10.3103/S0027133024700201","url":null,"abstract":"<p>The article shows an experimental (part 2) improvement in the\u0000stabilization of the gaze under galvanic vestibular stimulation.</p>","PeriodicalId":710,"journal":{"name":"Moscow University Mechanics Bulletin","volume":"79 5","pages":"149 - 155"},"PeriodicalIF":0.3,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994487","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
Dependence of the Size of the Reachable Set on Parameters in a Second-Order Linear System 二阶线性系统可达集的大小与参数的关系
IF 0.3
Moscow University Mechanics Bulletin Pub Date : 2025-01-16 DOI: 10.3103/S0027133024700237
A. S. Klyuev
{"title":"Dependence of the Size of the Reachable Set on Parameters in a Second-Order Linear System","authors":"A. S. Klyuev","doi":"10.3103/S0027133024700237","DOIUrl":"10.3103/S0027133024700237","url":null,"abstract":"<p>The oscillating linear time-invariant system of second order with time-varying bounded control is considered. The reachable set size is studied with respect to bounded parameters of the system. The reachable set size is characterized by a distance from the origin to the most or least distant point of the set in the Euclidean norm. For one case study, the set size is found to be monotonous in all parameters of the system.</p>","PeriodicalId":710,"journal":{"name":"Moscow University Mechanics Bulletin","volume":"79 5","pages":"172 - 177"},"PeriodicalIF":0.3,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994488","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 d’Alambert Principle and the Classical Relativity in Lagrangian Mechanics 拉格朗日力学中的达朗伯特原理和经典相对论
IF 0.3
Moscow University Mechanics Bulletin Pub Date : 2025-01-16 DOI: 10.3103/S0027133024700213
B. Jovanović
{"title":"The d’Alambert Principle and the Classical Relativity in Lagrangian Mechanics","authors":"B. Jovanović","doi":"10.3103/S0027133024700213","DOIUrl":"10.3103/S0027133024700213","url":null,"abstract":"<p>In this paper, we present an invariant formulation of the d’Alambert principle and classical time-dependent Lagrangian mechanics with holonomic constraints from the perspective of moving frames.</p>","PeriodicalId":710,"journal":{"name":"Moscow University Mechanics Bulletin","volume":"79 5","pages":"156 - 164"},"PeriodicalIF":0.3,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994599","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
Guaranteeing Estimation Method for Determining Failures in a Redundant Sensor Unit 冗余传感器单元故障确定的保证估计方法
IF 0.3
Moscow University Mechanics Bulletin Pub Date : 2025-01-16 DOI: 10.3103/S0027133024700249
A. I. Matasov, E. V. Shestakova
{"title":"Guaranteeing Estimation Method for Determining Failures in a Redundant Sensor Unit","authors":"A. I. Matasov,&nbsp;E. V. Shestakova","doi":"10.3103/S0027133024700249","DOIUrl":"10.3103/S0027133024700249","url":null,"abstract":"<p>An algorithm is proposed to determine failures for a redundant inertial sensor unit by means of the guaranteeing estimation method. The numerical testing confirms the efficiency of the proposed algorithm.</p>","PeriodicalId":710,"journal":{"name":"Moscow University Mechanics Bulletin","volume":"79 5","pages":"178 - 182"},"PeriodicalIF":0.3,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994489","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
Symmetric Cavitation Flow around a Cylinder with a Point Effluent on Its Surface 表面有点流出物的圆柱体周围对称空化流动
IF 0.3
Moscow University Mechanics Bulletin Pub Date : 2025-01-16 DOI: 10.3103/S0027133024700225
A. A. Spasova, S. L. Tolokonnikov
{"title":"Symmetric Cavitation Flow around a Cylinder with a Point Effluent on Its Surface","authors":"A. A. Spasova,&nbsp;S. L. Tolokonnikov","doi":"10.3103/S0027133024700225","DOIUrl":"10.3103/S0027133024700225","url":null,"abstract":"<p>The problem of a symmetric stationary cavitation flow around a cylinder by an infinite flow of ideal incompressible weightless fluid in the presence of a given intensity point effluent located at the front point of the cylinder is considered. The exact solution to the problem is constructed by mapping the areas of change in the complex potential and complex flow velocity onto the area of change in the auxiliary parametric variable. A parametric analysis of the problem is performed. For a wide range of values of the cavitation number, the dimensionless flow rate, the shape and dimensions of the cavitation cavity, and the values of the drag coefficient are found.</p>","PeriodicalId":710,"journal":{"name":"Moscow University Mechanics Bulletin","volume":"79 5","pages":"165 - 171"},"PeriodicalIF":0.3,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994485","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
下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信