Latest issuedynamic damper, seismic protection, attenuation, seismic suppression, heavily damped systems, seismic resistance
DOI: 10.37153/2618-9283-2022-4-8-22
Authors:Rubric: Theoretical and experimental studies
Annotation:
The paper is devoted to studying the influence of the method of accounting the system damping on the mass damper optimal parameters and their effectiveness under seismic impacts. Steady harmonic oscillations of a damped system with the mass damper are considered. The calculation model is represented by two masses connected by springs. Optimal damping parameters are determined by minimizing peak displacements in the frequency response of the system under consideration.
Four ways of accounting the damping are considered: hysteresis damping in the structure and the damper spring, equivalent viscous damping in the structure and the damper spring, hysteresis damping in the structure and damper spring and additional viscous damping in the damper spring and setting the damping in proportion to the shape mode energy. It has been established that the type of the model for taking into account the resistance forces significantly affects selecting the optimal parameters of the mass damper and its design efficiency Used Books:Savinov O.A. O primenenii dinamicheskogo gasitelya kolebanij. Trudy nauchno-issled. sektora l.o. tresta glubinnykh rabot. L.: Strojizdat Narkomstroya. 1940. Vyp. 1, pp. 30 – 35.
2. Korenev B.G., Reznikov L.M. Dinamicheskie gasiteli kolebanij. M.: Nauka. 1988. 303 p.
3. Sakharova V.V., Simkin A.A., Nikitin A.A., Uzdin A.M. Ispol'zovanie proletnogo stroeniya dlya gasheniya sejsmicheskikh kolebanij opor mostov. Ehkspress-informatsiya VNIIIS. Ser.14. Sejsmostojkoe stroitel'stvo. 1982, Vyp. 4, pp. 14 – 18.
4. Uzdin A.M., Elizarov S.V., Belash T.A. Sejsmostojkie konstrukcii transportnykh zdanij i sooruzhenij: uchebnoe posobie dlya studentov vuzov zheleznodorozhnogo transporta. Moskva: FGBOU «Uchebno-metodicheskij centr po obrazovaniyu na zheleznodorozhnom transportE». 2012. 501 p.
5. Nikitin A.A., Uzdin A.M. Primenenie dinamicheskikh gasitelej kolebanij dlya sejsmozashchity mostov. Ehkspress-informaciya VNIIIS. Ser.14. Sejsmostojkoe stroitel'stvo. 1986, Vyp. 9, pp. 20 – 24.
6. Cejtlin A.I., Kim L.I. Sejsmicheskie kolebaniya mnogoehtazhnogo zdaniya s «gibkim» verkhnim ehtazhom. Snizhenie materialoemkosti i trudoemkosti sejsmostojkogo stroitel'stva. Tezisy dokladov Vsesoyuznogo soveshchaniya. M.: Strojizdat.1982, p. 85.
7. Nesterova O.P., Uzdin A.M. Osobennosti raboty dinamicheskikh gasitelej kolebanij pri silovom i kinematicheskom vozmushchenii dempfirovannykh sooruzhenij. Izvestiya rossijskoj Akademii raketnykh i artillerijskikh nauk. Moskva. 2016, Vyp. 2(92), pp. 84 – 89.
8. Polorotova N.A., Nesterova O.P., Uzdin A.M. Zadanie dempfiruyushchikh kharakteristik dinamicheskikh sistem i postroenie matricy dempfirovaniya. Stroitel'naya mekhanika i raschet sooruzhenij. 2019, no. 6, pp.40 – 49.
9. Sorokin E.S. K teorii vnutrennego treniya pri kolebaniyakh uprugikh sistem. M.: Gos. izd. po stroit., arkh. i stroit. materialam. 1960. 129 p.
10. Cejtlin A.I. Ob uchete vnutrennego treniya v normativnykh dokumentakh po dinamicheskomu raschetu sooruzhenij. Stroitel'naya mekhanika i raschet sooruzhenij. 1981, no. 4, pp. 33 – 38.
11. Reznikov A.M. Ehkvivalentnaya model' mnogomassovoj sistemy s vyazkim i chastotno-nezavisimym vnutrennim treniem . Stroitel'naya mekhanika i raschet sooruzhenij. 1979, no. 4, pp. 44 – 48.
12. Panovko Ya.G. Vnutrennee trenie pri kolebaniyakh uprugikh sistem. M.: Fizmatgiz. 1960. 193 p.
13. Soroka W.W. Note on the relations between viscous and structural damping coefficients. Journal of the Aeronautical Sciences. 1949, no. 16, p. 409
14. Durseneva N.V., Indeykin A.V., Kuznetsova I.O., Uzdin A.M., Fedorova M.Yu. Peculiarities of Calculating Bridges with Seismic Isolation Including Spherical Bearings and Hydraulic Dampers in Russia. Journal of Civil Engineering and Archtecture. 2015, volume 9, no. 4, pp. 401 – 409
15. Skiner R.I., Robinson W.H., McVerry G.H. An introduction to seismic isolation. New Zealand. John Wiley & Sons, 1993, 353 p.
16. Soydan S., Gullu A., Hepbostanci O.E., Yuksel E., Irtem E. Design of a Special Lead Extrusion Damper. Conference: 15th World Conference on Earthquake Engineering At Lisboa, Portugal, 2012, Volume 15.
17. Vorobyova K.V., Nesterova O.P., Uzdin A.M., Nikonova N.V., Fedorova M.Yu. Taking account of damping in estimating structure earthquake stability. Materials Physics and Mechanics. 2016, no. 26, pp. 57 – 60.
18. Nesterova O.P., Uzdin A.M., Fedorova M.Yu. Metod rascheta sil'no dempfirovannykh sistem s neproporcional'nym dempfirovaniem. Inzhenerno-stroitel'nyj zhurnal. 2018, no. 5(81), pp. 64 – 72.
19. Nesterova O.P., Uzdin A.M., Fedorova M.YU. Vliyanie sposoba ucheta dempfirovaniya na optimizaciyu parametrov dinamicheskogo gasitelya kolebanij. Sejsmostojkoe stroitel'stvo. Bezopasnost' sooruzhenij. 2021, no. 6, pp. 29 – 44.