Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Dmitri Kartofelev"'
Publikováno v:
Proceedings of the Estonian Academy of Sciences, Vol 69, Iss 4, Pp 298-310 (2020)
This paper presents the results of an experimental investigation into the effects of the fibre orientation and the concrete casting method on the flexural strength and fracture toughness of steel fibre reinforced self-compacting concrete (SFRSCC). A
Externí odkaz:
https://doaj.org/article/cb1bb059aca3497e963e1aefddc168dc
Publikováno v:
22nd International Symposium on Nonlinear Acousticsics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4beba1de3fa2261edce16b91b0fd63d5
https://doi.org/10.1121/2.0001628
https://doi.org/10.1121/2.0001628
Publikováno v:
Wave Motion. 71:127-138
Waves with the negative group velocity (NGV) are known to exist in optics (Sommerfeld and Brillouin) and in some mechanical cases like layered media, cylindrical shells and cylinders. In this paper the effects of the NGV on the evolution of the wave
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abee1032e6927eed286abefa9add918c
https://doi.org/10.1016/j.wavemoti.2016.04.010
https://doi.org/10.1016/j.wavemoti.2016.04.010
Publikováno v:
Aalto University
Experimental research into the fundamental acoustic aspects of musical instruments and other sound generating devices is an important part of the history of musical acoustics and of physics in general. This paper presented experimental proof of dispe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::328e69e9d9b017327c2eb6802a4d037e
Autor:
Anatoli Stulov, Dmitri Kartofelev
Publikováno v:
Wave Motion. 57:23-33
On the basis of the experimental data of the piano hammers study the one-dimensional constitutive equation of the wool felt material is proposed. This relation enables deriving a nonlinear partial differential equation of motion with third order term
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b350813a9f7613b41b72965a56120bcb
https://doi.org/10.1016/j.wavemoti.2015.03.002
https://doi.org/10.1016/j.wavemoti.2015.03.002
Autor:
Anatoli Stulov, Dmitri Kartofelev
Publikováno v:
Acta Mechanica. 225:3103-3113
The natural wool felt is becoming increasingly popular and important as a resource material in various applications. In this study, a constitutive equation that describes the deformation wave propagation in the felt material is derived using a hyster
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::092aa9344af550948c33aa126a29ced4
https://doi.org/10.1007/s00707-014-1109-1
https://doi.org/10.1007/s00707-014-1109-1
Autor:
Anatoli Stulov, Dmitri Kartofelev
Publikováno v:
Applied Acoustics. 76:223-229
The dynamic string motion, which displacement is unilaterally constrained by the rigid termination condition of an arbitrary geometry has been simulated and analyzed. The treble strings of a grand piano usually terminate at a capo bar, which is situa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fecca0eda0134319e57c255acdef3ef0
https://doi.org/10.1016/j.apacoust.2013.08.010
https://doi.org/10.1016/j.apacoust.2013.08.010
Publikováno v:
AIP Conference Proceedings.
Interactions of a vibrating string with its supports and other spatially distributed barriers play a significant role in the physics of many stringed musical instruments. It is well known that the tone of the string vibrations is determined by the st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20f8710a27faf82a3f37cee3d505fba4
https://doi.org/10.1063/1.4934387
https://doi.org/10.1063/1.4934387
Autor:
Dmitri Kartofelev
Publikováno v:
The Journal of the Acoustical Society of America. 141:3961-3961
In this paper, we study the various possible motions of a string free to vibrate in two mutually perpendicular planes in the presence of a finite unilateral curved obstacle. We consider an obstacle which is curved only along the direction of the stri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f3cc1bd7d8cb1691f250e93ea3458dc
https://doi.org/10.1121/1.4989012
https://doi.org/10.1121/1.4989012
Publikováno v:
AIP Conference Proceedings.
We investigate the vibrations of the ideal flexible string, which one end is rigidly clamped, or coupled with a linear damped oscillator, and another one is terminated on the curved contact surface. The vibrating string touches repeatedly this termin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::407639616cc6dc9a63883475637b7ebd
https://doi.org/10.1063/1.2956301
https://doi.org/10.1063/1.2956301