Zobrazeno 1 - 10
of 1 175
pro vyhledávání: '"Vibration modes"'
Autor:
Liang Li, Takaaki Ohkubo
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract Bridges will inevitably experience structural damage during long-term operation, which will decrease their structural load bearing capacity and durability. The vibration characteristics of bridge structures can be used as evaluation indicato
Externí odkaz:
https://doaj.org/article/766d38815cfb486aacb7ec2893beb72e
Autor:
Nara Silveira Velloso, Fábio Lúcio Santos, Domingos Sárvio Magalhães Valente, Francisco de Assis de Carvalho Pinto, Mariana Ribeiro Pereira, Jéssica Pontes Rangel
Publikováno v:
Brazilian Archives of Biology and Technology, Vol 67 (2024)
Abstract The macaw palm is a palm tree with wide geographic distribution. The aim of this work was to determine the modal properties of the macaw palm fruit-rachilla system subjected to mechanical vibrations. Three-dimensional models were elaborated
Externí odkaz:
https://doaj.org/article/8107088d47e44e039d0ab65225ecb561
Publikováno v:
Studia Universitatis Babeş-Bolyai. Engineering, Vol 69, Iss 1 (2024)
In this work, we have considered a cantilever beam with a rectangular plastic cross-section, reinforced by four wire reinforcements made of ductile Iron. It was studied using numerical resolution based on theoretical formulae and then simulated using
Externí odkaz:
https://doaj.org/article/d03ede086f1c44259e9fbcbb1f7dfdbc
Publikováno v:
Journal of Agricultural Machinery, Vol 14, Iss 2, Pp 163-176 (2024)
IntroductionThe growing consumer demand for high-quality products has led to the development of new technologies for assessing the quality of agricultural products. Iran is the 9th largest orange producer in the world. Every year, large quantities of
Externí odkaz:
https://doaj.org/article/27b7525fac9a4bc29f02cc3051267215
Publikováno v:
Magazine of Civil Engineering, Vol 17, Iss 2 (2024)
The object of the research is the reinforced concrete frame of an industrial building. A review of publications on methods of dynamic calculation of reinforced concrete structures is presented. Computational studies were carried out using the finite
Externí odkaz:
https://doaj.org/article/0cc8365e64af4083953dfab59a689e44
Publikováno v:
Arabian Journal of Chemistry, Vol 17, Iss 2, Pp 105579- (2024)
The initial triggering mechanism of nitromethane is investigated by first-principles molecular dynamics simulations and temperature-dependent Raman spectroscopy experiment. The Raman spectra at different temperature are obtained by Car-Parrinello mol
Externí odkaz:
https://doaj.org/article/7051e447f6664990b09d303b82b2d08d
Publikováno v:
Applied Mathematics and Nonlinear Sciences, Vol 9, Iss 1 (2024)
This paper first introduces the vibration modal analysis system and its general design, then improves the smoothing function and wavelet function transform algorithms in the system, and then determines and verifies the characteristic parameter algori
Externí odkaz:
https://doaj.org/article/6c7436de24e74855b902b04bd85406a4
Autor:
Cao Lijuan
Publikováno v:
Applied Mathematics and Nonlinear Sciences, Vol 9, Iss 1 (2024)
Pipa fretting and pitch measurement are crucial aspects of playing. In this paper, Pipa’s string vibration is simplified to bounded string vibration, and a simplified structural model of Pipa is built. Transverse free vibration is used to establish
Externí odkaz:
https://doaj.org/article/d4bae692d49348cc833f4a189f624ec9
Publikováno v:
Earth, Planets and Space, Vol 75, Iss 1, Pp 1-15 (2023)
Abstract The study of ground resonances is important to assess seismic site amplification and to infer information on the geometrical and mechanical properties of the resonating structures. 1D- and 2D-type resonances imply different dynamic behavior
Externí odkaz:
https://doaj.org/article/e81fc045b6e14f13a2e141eaaaf6fbc4
Publikováno v:
Nanomaterials, Vol 14, Iss 4, p 350 (2024)
This paper employs a surface stress-driven nonlocal theory to investigate the synergistic impact of long-range interaction and surface energy on higher vibration modes of Bernoulli–Euler nanobeams made of functionally graded material. It takes into
Externí odkaz:
https://doaj.org/article/f255245dc6f3493d8bd3f048a6b3fc9f