Error
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering

DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

IDENTIFICATION OF NATURAL FREQUENCIES OF MULTISTORIED BUILDINGS OF PERIODIC STRUCTURE

Vestnik MGSU 2/2012
  • Dashevskij Mihail Aronovich - VIBROSEJSMOZASCHITA Limited Liability Company (VIBROSEJSMOZASCHITA LLC) Doctor of Technical Sciences, Senior Researcher, Director of Technology 8 (495) 650-41-52, VIBROSEJSMOZASCHITA Limited Liability Company (VIBROSEJSMOZASCHITA LLC), Building 1, 20/2 Kominterna Str., Moscow, 129327, Russia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Mondrus Vladimir L'vovich - Moscow State University of Civil Engineering (MSUCE) Doctor of Technical Sciences, Professor, Head of Department of Structural Mechanics 8 (495) 287-49-14, ext. 3141, Moscow State University of Civil Engineering (MSUCE), 26 Jaroslavskoe shosse, Moscow, 129337, Russia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Shutovskij Stanislav Nikolaevich - Moscow State University of Civil Engineering (MSUCE) postgraduate student, Department of Structural Mechanics 8 (495) 287-49-14, ext. 3141, Moscow State University of Civil Engineering (MSUCE), 26 Jaroslavskoe shosse, Moscow, 129337, Russia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 35 - 40

Periodic two- and three-dimensional structural models designated for rectangular-plan buildings are considered in the article. Expressions for identification of natural frequencies designated for unloaded and loaded two-dimensional structural models, as well as non-free three-dimensional structural models of multistoried buildings are provided in the article.

DOI: 10.22227/1997-0935.2012.2.35 - 40

References
  1. Vol'fson B.P. O rasprostranenii voln v modeljah zdanij i sooruzhenij s vnutrennim treniem [On propagation of Waves in Models of Buildings and Structures That Feature Internal Friction]. Stroitel'naja mehanika i raschet sooruzhenij [Structural Mechanics and Analysis of Structures]. 1971, Issue # 5, pp. 105—112.
  2. Nikiforov A.F., Uvarov V.B. Special'nye funkcii matematicheskoj fiziki [Special Functions of Mathematical Physics]. Moscow, Intellect, 2007.
  3. Szeg? G. Ortogonal'nye mnogochleny [Orthogonal Polynomials]. Moscow, Gosudarstvennoe izdatel'stvo fiziko-matematicheskoj literatury [State Publishing House of Physical and Mathematical Literature], 1962.
  4. Brillouin L., Parodi M. Rasprostranenie voln v periodicheskih strukturah [Propagation of Waves in Periodic Structures]. Moscow, Inostrannaja literatura, 1959.
  5. Banakh L., Kempner M. Vibrations of Mechanical Systems with Regular Structure. Springer, 2010.
  6. Mead D. J. Wave Propagation in Continuous Periodic Structures: Research Contributions from Southampton, 1964—1995. Journal of Sound and Vibration (1996) 190(3), pp. 495—524.

Download

HARMONIC WAVE PROPAGATION UNDERNEATH LONG ONE-STORIED BUILDINGS

Vestnik MGSU 2/2012
  • Anohin Nikolaj Nikolaevich - Moscow State University of Civil Engineering (MSUCE) Candidate of Technical Sciences, Professor, Department of Structural Mechanics 8 (495) 287-49-14, ext. 3141, Moscow State University of Civil Engineering (MSUCE), 26 Jaroslavskoe shosse, Moscow, 129337, Russia.
  • Dashevskij Mihail Aronovich - VIBROSEJSMOZASCHITA Limited Liability Company (VIBROSEJSMOZASCHITA LLC) Doctor of Technical Sciences, Senior Researcher, Director of Technology 8 (495) 650-41-52, VIBROSEJSMOZASCHITA Limited Liability Company (VIBROSEJSMOZASCHITA LLC), Building 1, 20/2 Kominterna Str., Moscow, 129327, Russia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Mondrus Vladimir L'vovich - Moscow State University of Civil Engineering (MSUCE) Doctor of Technical Sciences, Professor, Head of Department of Structural Mechanics 8 (495) 287-49-14, ext. 3141, Moscow State University of Civil Engineering (MSUCE), 26 Jaroslavskoe shosse, Moscow, 129337, Russia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Shutovskij Stanislav Nikolaevich - Moscow State University of Civil Engineering (MSUCE) postgraduate student, Department of Structural Mechanics 8 (495) 287-49-14, ext. 3141, Moscow State University of Civil Engineering (MSUCE), 26 Jaroslavskoe shosse, Moscow, 129337, Russia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 47 - 51

Periodic analysis models represented as networks of oscillators designated for long one-storied buildings are considered in the article. Expressions of natural frequencies and types of fluctuations are provided. Harmonic wave propagation underneath a long one-storied building is considered.

DOI: 10.22227/1997-0935.2012.2.47 - 51

References
  1. Brillouin L., Parodi M. Rasprostranenie voln v periodicheskih strukturah [Propagation of Waves in Periodic Structures]. Moscow, Inostrannaja literature, 1959.
  2. Vol'fson B.P. O rasprostranenii voln v modeljah zdanij i sooruzhenij s vnutrennim treniem [On propagation of Waves in Models of Buildings and Structures That Feature Internal Friction]. Stroitel'naja mehanika i raschet sooruzhenij [Structural Mechanics and Analysis of Structures]. 1971, Issue # 5, pp. 105—112.
  3. Dashevskij M.A. Svobodnye postupatel'no-vrawatel'nye kolebanija nesimmetrichnyh v plane sooruzhenij reguljarnoj struktury [Free Forward-Rotary Fluctuations of Asymmetrical Structures of Regular Pattern]. Works of CNIISK im. V.A. Kucherenko. 1975, Issue # 43, pp. 68—72.
  4. Nikiforov A.F., Uvarov V.B. Special'nye funkcii matematicheskoj fiziki [Special Functions of Mathematical Physics]. Moscow, Intellect, 2007.
  5. Szeg? G. Ortogonal'nye mnogochleny [Orthogonal Polynomials]. Moscow, Gosudarstvennoe izdatel'stvo fiziko-matematicheskoj literatury [State Publishing House of Physical and Mathematical Literature], 1962.

Download

Numerical implementation of Voigt and Maxwell models for simulation of waves in the ground

Vestnik MGSU 11/2014
  • Sheshenin Sergey Vladimirovich - Moscow State University (MSU) Doctor of Physical and Mathematical Sciences, Professor, Department of Composite Mechanics, Moscow State University (MSU), 1 Leninskie Gory, Moscow, 119991, Russian Federation; +7 (495) 939-43-43; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Zakalyukina Irina Mikhaylovna - Moscow State University of Civil Engineering (MGSU) Candidate of Physical and Mathematical Sciences, Assosiate Professor, Department of Theoretical Mechanics and Aerodynamics, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499) 183-24-01; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Koval’ Sergey Vsevolodovich - 26 Central Research Institute, branch of 31 State Project Institute of Special Building (31 SPISB) Doctor of Technical Science, Ciief Research Worker, Department of Special Construction and Seismic Resistance, 26 Central Research Institute, branch of 31 State Project Institute of Special Building (31 SPISB), 19 Smolenskiy Bul’var, Moscow, 119121, Russian Federation; +7 (499) 241-2248; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 82-89

A lot of papers have been dedicated to simulation of dynamic processes in soil and underground structures. For example, some authors considered wave distribution in underground water pipes for creation of vibration monitoring system, others considered theoretical and algorithm aspects of efficient implementation of realistic seismic wave attenuation due to viscosity development with the help of Finite Difference Method, etc. The paper describes the numerical simulation, designed for simulation of the stress-strain state in the ground subjected to wave processes. We consider the ground with a concrete structure immersed in. The purpose of the work is the description of small vibrations in hard soil, which can nevertheless make undesirable impact on the objects in the ground or on the surface. Explicit Wilkins type scheme is used for time integration. It has proven to be successful, including the use in a well-known LS-DYNA code. As a result we created our own computer code based on the finite element method (FEM). An example of its practical usage is given.

DOI: 10.22227/1997-0935.2014.11.82-89

References
  1. Tsvetkov R.V., Shardakov I.N., Shestakov A.P. Analiz rasprostraneniya voln v podzemnykh gazoprovodakh primenitel’no k zadache proektirovaniya sistem monitoringa [Analysis of Wave Propagation in Underground Pipelines in Relation to Monitoring Systems Design]. Vychislitel’naya mekhanika sploshnykh sred [Computational Mechanics of Continuous Media]. 2013, vol. 6, no. 3, pp. 364—372. (In Russian).
  2. Kristek J., Moczo P. Seismic-Wave Propagation in Viscoelastic Media with Material Discontinuities: A 3D Fourth-Order Staggered-Grid Finite-Difference Modeling. Bulletin of the Seismological Society of America. 2003, vol. 93, no. 5, pp. 2273—2280. DOI: http://dx.doi.org/10.1785/0120030023.
  3. Kochetkov A. V., Poverennov E. Yu. Primenenie metoda kvaziravnomernykh setok pri reshenii dinamicheskikh zadach teorii uprugosti v neogranichennykh oblastyakh [Application of Quasi-uniform Nets Method in the Process of Solving the Dynamic Problems of the Elasticity Theory in Unbounded Domains]. Matematicheskoe modelirovanie [Mathematical Simulation]. 2007, no. 19, pp. 81–92. (In Russian).
  4. Glazova E.G., Kochetkov A.V., Krylov S.V. Chislennoye modelirovanie vzryvnykh protsessov v merzlom grunte [Numerical Simulation of Explosive Processes in Frozen Soil]. Izvestiya Rossiyskoy akademii nauk. Mekhanika tverdogo tela [News of the Russian Academy of Sciences. Solid Mechanics]. 2007, no. 6, pp. 128—136. (In Russian).
  5. Potapov A.P., Royz S.I., Petrov I.B. Modelirovanie volnovykh protsessov metodom sglazhennykh chastits (SPH) [Modeling of Wave Processes Using Smoothed Particle Hydrodynamics (SPH)]. Matematicheskoye modelirovaniye [Mathematical Modeling]. 2009, no. 7. Vol. 21. Pp. 20—28. (In Russian).
  6. Potapov A.P., Petrov I.B. Modelirovanie volnovykh protsessov pri vysokoskorostnykh soudareniyakh metodom sglazhennykh chastits (SPH) [Modeling of Wave Processes in High-Speed Collisions by Smoothed Particle Hydrodynamics (SPH)]. Vestnik Baltiyskogo federal'nogo universiteta im. I. Kanta [Proceedings of Immanuel Kant Baltic Federal University]. 2009, no. 10, pp. 5—20. (In Russian).
  7. Zamyshlyaev B.V., Evterev L.S. Modeli dinamicheskogo deformirovaniya i razrusheniya gruntovykh sred [Models of Soil Dynamic Deformation and Destruction]. Moscow, Nauka Publ., 1990, 215 p. (In Russian).
  8. Kiselev F., Sheshenin S.V. Modelirovanie kontakta podzemnykh sooruzheniy s uprugovyazkoplasticheskim gruntom [Modeling of Underground Structures Interaction with Elastic Ground]. Vestnik Moskovskogo universiteta. Seriya 1. Matematika i mekhanika [Proceedings of Moscow University. Series 1. Mathematics and Mechanics]. 2006, no. 3, pp. 61—65. (In Russian).
  9. Kondaurov V.I., Nikitin L.V. Teoreticheskie osnovy reologii geomaterialov [Theoretical Foundations of Rheology Theory for Geomaterials]. Moscow, Nauka Publ., 1990, 207 p. (In Russian).
  10. Rykov G.V., Skobeev A.M. Izmereniye napryazheniy v gruntakh pri kratkovremennykh nagruzkakh [Measurement of Stress in the Soil under Impulse Loadings]. Moscow, Nauka Publ., 1978, 168 p. (In Russian).
  11. Tukhvatullina A.V., Kantur O.V. Matematicheskie modeli deformirovaniya myagkikh gruntov [Mathematical Models of Soft Soil Deformation]. Sovershenstvovanie metodov rascheta i konstruktsiy podzemnykh sooruzheniy [Advancing Calculation Methods and Structures of Underground Constructions]. Moscow, 26 TSNII MO RF Publ., 2000. (In Russian).
  12. Del?pine N., Lenti L., Bonnet G., Semblat J.-F. Nonlinear Viscoelastic Wave Propagation: an Extension of Nearly Constant Attenuation Models. Jornal of Engineering Mechanics. 2009, vol. 135. Issue 11, pp. 1305—1314. DOI: http://dx.doi.org/10.1061/(ASCE)0733-9399(2009)135:11(1305).
  13. Morochnik V., Bardet J.P. Viscoelastic Approximation of Poroelastic Media for Wave Scattering Problems. Soil Dynamics and Earthquake Engineering. 1996, vol. 15, no. 5, pp. 337—346. http://dx.doi.org/10.1016/0267-7261(96)00002-4.
  14. Keunings R. Progress and Challenges in Computational Rheology. Rheologica Acta. 1990, vol. 29, no. 6, pp. 556—570.
  15. Brandes K. Blast — Resistant Structures. Proceedings of the International Workshop on Blast — Resistant Structures. Tsinghua Univ., Beijing, China, 1992.
  16. Wilkins M.L. Calculation of Elastic-Plastic Flow. Methods of Computational Physics. 1964, Academic Press, New York, vol. 3.
  17. Reshetova G., Tcheverda V., Vishnevsky D. Parallel Simulation of 3D Wave Propagation by Domain Decomposition. Journal of Applied Mathematics and Physics. 2013, no. 1, pp. 6—11. DOI: http://dx.doi.org/10.4236/jamp.2013.14002.
  18. ?erveny V., P?en??k I. Plane Waves in Viscoelastic Anisotropic Media—I. Theory. Geophysical. Jornal International. 2005, vol.161, no. 1, pp. 197—212.
  19. Daley P.F., Krebes E.S. SH Wave Propagation in Viscoelastic Media. CREWES Research Report. 2003, vol. 15, pp.1—25.
  20. Radim C., Saenger E.H., Gurevich B. Pore Scale Numerical Modeling of Elastic Wave Dispersion and Attenuation in Periodic Systems of Alternating Solid and Viscous Fluid Layers. Journal of the Acoustical Society of America. 2006, vol. 120 (2), pp. 642—648. DOI: http://dx.doi.org/10.1121/1.2216687.

Download

Results 1 - 3 of 3