Influence of the Shape and Support Type of Thin-Walled Cylindrical Shell on Its Forced Vibrations

Sysoev, Oleg E.; Sysoev, E O; Dobryshkin, Artem Yu.

doi:10.1007/978-3-030-69421-0_64

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…The dynamic deflection can be written in the following form [8][9][10][11]: at m = 1, then This study corresponds to the world level of research [12][13][14], since the results obtained in the course of generation of experimental data will contribute to the reduction in the manufacturing cost of airframes and water vehicle hulls, building structures, buildings, and structures [15]. These products will have high competitive advantages in the Russian and world markets.…”

Section: Theoretical Partmentioning

confidence: 99%

Determination of the Influence of Reinforcement Direction of Open Thin-Walled Cylindrical Carbon Shells on Their Natural Vibrations

Dobryshkin

Sysoev

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Nowadays, open cylindrical shells are widely used in structures in construction, aviation, energy, oil, and other industries. Shell structures are exposed to short-term cyclical influences in the course of operation; these influences cause forced vibrations of the structure which trigger the internal dynamic mechanisms, changing the natural vibrations of the structure, which has a significant impact on the strength characteristics of the shell. Carbon-fiber-reinforced plastics (CFRP) are used as an effective material for such structures. This is a durable and lightweight material. Due to its high cost, its application used to be efficient only in aircraft and in the space industry. Improvement of manufacturing techniques has made it possible to expand the range of CFRP applications. Due to their thinness, CFRP products are prone to vibrations. Vibrations can cause resonance condition, which can result in structural collapse.

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Section: Theoretical Partmentioning

confidence: 99%

Determination of the Influence of Reinforcement Direction of Open Thin-Walled Cylindrical Carbon Shells on Their Natural Vibrations

Dobryshkin

Sysoev

2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…In certain special cases with initial imperfection, when the number of waves in the circumferential direction is the same as in the longitudinal one, i.e., 𝑛 = 𝑛 ! [13][14][15], the system of dynamic equations (5) takes on the following form…”

mentioning

confidence: 99%

Influence of the Multilayer Nature of Reinforcement of Open Thin-Walled Cylindrical Carbon Shells on Their Natural Vibrations

Sysoev

Dobryshkin

Volik

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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In the near future, mega-long-span structures will be required for creating stable microclimate over large areas, regardless of the natural conditions, for comfortable living of people. Thin-walled shell structures made of carbon materials with high strength properties are best suited for this purpose. The problem with thin-walled shells resides in vibrations caused by the action of external forces, which can lead to structural failure. The paper presents and experimental study of influence of the multilayer nature of reinforcement of open thin-walled cylindrical carbon shells on their natural vibrations. Experimental data have been compared to the theoretical calculations of open thin-walled cylindrical shell vibrations taking into account the frequency spectrum splitting. It has been found that with the increase in the number of carbon fabric reinforcement layers, vibration frequency deviation in open thin-walled cylindrical carbon shells increases at the initial stage as compared to the analytic model.

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Research of oscillations of cylindrical shell with added mass accounting for contour stretching

Dobryshkin,

Pushkareva,

Sysoev

2023

International Scientific and Practical Conference “Innovative Technologies in Agriculture”

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Influence of the Shape and Support Type of Thin-Walled Cylindrical Shell on Its Forced Vibrations

Cited by 4 publications

References 10 publications

Determination of the Influence of Reinforcement Direction of Open Thin-Walled Cylindrical Carbon Shells on Their Natural Vibrations

Determination of the Influence of Reinforcement Direction of Open Thin-Walled Cylindrical Carbon Shells on Their Natural Vibrations

Influence of the Multilayer Nature of Reinforcement of Open Thin-Walled Cylindrical Carbon Shells on Their Natural Vibrations

Research of oscillations of cylindrical shell with added mass accounting for contour stretching

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