1. Stability of Circulatory Systems under Viscous Friction Forces

   • V. V. Kozlov

   OriginalPaper 26 February 2021 Pages: 1135 - 1141

2. Particular Extremals in the Optimal Control Problems of the Reorientation of an Asymmetric Rotating Body

   • L. D. Akulenko
   • A. N. Sirotin

   OriginalPaper 26 February 2021 Pages: 1142 - 1156

3. Class of Auto-Oscillating Systems

   • S. V. Nesterov
   • V. G. Baydulov

   OriginalPaper 26 February 2021 Pages: 1157 - 1161

   

4. Subharmonic Oscillations in the Near-Circular Elliptic Sitnikov Problem

   • A. P. Markeev

   OriginalPaper 26 February 2021 Pages: 1162 - 1171

   

5. Bifurcation Smale Diagrams for Dynamics of Three Connected Bodies System

   • A. V. Karapetyan

   OriginalPaper 26 February 2021 Pages: 1172 - 1177

   

6. Transition Processes in Tippe-Top Dynamics

   • M. A. Munitsyna

   OriginalPaper 26 February 2021 Pages: 1178 - 1184

   

7. Linear Transverse Oscillations of the Space Elevator Cable

   • Yu. A. Sadov
   • A. B. Nuralieva

   OriginalPaper 26 February 2021 Pages: 1185 - 1193

8. Calculations of the Evolution of Planetary Orbits

   • N. I. Amel’kin

   OriginalPaper 26 February 2021 Pages: 1194 - 1209

   

9. Analytical Approximation of Functional Dependences of the Geodesic Line Parameters

   • P. A. Kucherenko
   • S. V. Sokolov

   OriginalPaper 26 February 2021 Pages: 1210 - 1215

   

10. Optimization Problems of Launch Vehicle Design

    • V. N. Branets

    OriginalPaper 26 February 2021 Pages: 1216 - 1234

    

11. Piecewise-Linear Yield Loci of Angle-Ply Reinforced Medium of Different-Resisting Rigid-Plastic Materials at 2D Stress State

    • T. P. Romanova
    • A. P. Yankovskii

    OriginalPaper 26 February 2021 Pages: 1235 - 1252

    

12. Long-Wave Vibrations and Long Waves in an Anisotropic Plate

    • N. F. Morozov
    • P. E. Tovstik
    • T. P. Tovstik

    OriginalPaper 26 February 2021 Pages: 1253 - 1266

13. Influence of the Solid Shape on the Solution for the Uncoupled Quasi-Static Cyclic Thermoelasticity Problem in a Thermal Layer (Using Regular Solids as Example)

    • M. I. Supel’nyak

    OriginalPaper 26 February 2021 Pages: 1267 - 1283

    

14. Anharmonic Waves in a Mindlin–Herrmann Rod Immersed in a Nonlinearly Elastic Medium

    • V. I. Erofeev
    • A. V. Leonteva

    OriginalPaper 26 February 2021 Pages: 1284 - 1297

    

15. Solution for the Geometric Elastostatic Inverse Problem by Means of Not Completely Overdetermined Boundary Data

    • E. A. Kasparova
    • E. I. Shifrin

    OriginalPaper 26 February 2021 Pages: 1298 - 1307

    

16. 3D Contact Problem with Adhesion for Two-Layered Elastic Half-Space

    • F. I. Stepanov
    • E. V. Torskaya

    OriginalPaper 26 February 2021 Pages: 1308 - 1317

    

17. Method of Mode Analysis for Mechanoacoustic Systems

    • M. B. Salin
    • E. M. Sokov
    • A. S. Suvorov

    OriginalPaper 26 February 2021 Pages: 1318 - 1327

    

18. Waves Trapped by Semi-Infinite Kirchhoff Plate at Ultra-Low Frequencies

    • S. A. Nazarov

    OriginalPaper 26 February 2021 Pages: 1328 - 1339

    

19. Scattering Matrix at Small Frequencies in a Junction of Cylindrical Acoustic Waveguides

    • S. A. Nazarov

    OriginalPaper 26 February 2021 Pages: 1340 - 1350

    

20. Sound Diffraction on a Sphere with an Inhomogeneous Coating in a Plane Waveguide

    • S. A. Skobeltsyn
    • L. A. Tolokonnikov

    OriginalPaper 26 February 2021 Pages: 1351 - 1362

    

21. Schoenberg’s Model-Based Simulation of Wave Propagation in Fractured Geological Media

    • P. V. Stognii
    • N. I. Khokhlov
    • I. B. Petrov

    OriginalPaper 26 February 2021 Pages: 1363 - 1371

    

22. Approach to Constructing a Hydraulic Fracture Trajectory in a Rock Mass Near a Mine Working

    • N. V. Cherdantsev

    OriginalPaper 26 February 2021 Pages: 1372 - 1391

    

23. Variant of the Relationship between the Mechanical and Adhesive Properties of Solid Materials

    • S. N. Romashin
    • V. S. Shorkin

    OriginalPaper 26 February 2021 Pages: 1392 - 1405

    

24. Plane Cracks in a Transversely Isotropic Layer

    • E. A. Artamonova
    • D. A. Pozharskii

    OriginalPaper 26 February 2021 Pages: 1406 - 1414

    

25. Contact Problems for Elastic Plates with Finite-Length Nonlinearly Deformable Stringers Glued to Their Boundaries

    • N. N. Shavlakadze
    • O. M. Jokhadze
    • S. S. Kharibegashvili

    OriginalPaper 26 February 2021 Pages: 1415 - 1422

    

26. Critical State Models in Non-Cohesive Media Mechanics (Review)

    • S. V. Kuznetsov

    OriginalPaper 26 February 2021 Pages: 1423 - 1431

    

27. Multimode Model for Fatigue Damage Development

    • I. S. Nikitin
    • N. G. Burago
    • A. D. Nikitin

    OriginalPaper 26 February 2021 Pages: 1432 - 1440

    

28. Development of Discrete Contact Mechanics with Applications to Study the Frictional Interaction of Deformable Bodies

    • I. G. Goryacheva
    • I. Yu. Tsukanov

    OriginalPaper 26 February 2021 Pages: 1441 - 1462

    

29. Contact Problems for a Porous Composite in the Presence of Friction Forces

    • T. V. Suvorova
    • O. A. Belyak

    OriginalPaper 26 February 2021 Pages: 1463 - 1470

    

30. Sliding of a Narrow Rectangular Plate across a Horizontal Plane with Asymmetric Orthotropic Friction under Uniform Pressure Distribution

    • N. N. Dmitriev
    • Xuesong Han

    OriginalPaper 26 February 2021 Pages: 1471 - 1481