Friction in Vacuum

Deulin, E. A.; Михайлов, В.П.; Panfilov, Yu. V.; Nevshupa, Roman

doi:10.1007/978-90-481-2520-3_3

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…2). Torsion spring is not shown in We have shown the unity of "different" friction phenomena, and the opportunity to utilise the theoretical and empirical dependencies in design of a new sensor [7,8] for simultaneous residual pressure (vacuum) and coverage coefficient measurements. The proposed scheme of such sensor is shown in Fig.…”

Section: Analysis Of Empirical and Theoretical Resultsmentioning

confidence: 99%

“…13. The second scheme of vacuum sensor for ultra wide measurement range [3,8]: 1 are torque measurement feedthroughs; 2 is a torque photoncoupled pair; 3, 10 is a rotating magnet drive; 8, 9, 11, 12 is a case; 4 is a measuring ball bearing (is tested); 5 are supporting ball bearings; 25 is a rotor; 26 is a shaft; 27 is a vacuum flange. The main elements ofthe second version ofthe sensor (Fig.…”

Section: Analysis Of Empirical and Theoretical Resultsmentioning

confidence: 99%

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A new type of wide-range vacuum sensor

Deulin

Galakhar

Basmanov

2009

2009 IEEE International Conference on Industrial Technology

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Section: Analysis Of Empirical and Theoretical Resultsmentioning

confidence: 99%

Section: Analysis Of Empirical and Theoretical Resultsmentioning

confidence: 99%

A new type of wide-range vacuum sensor

Deulin

Galakhar

Basmanov

2009

2009 IEEE International Conference on Industrial Technology

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Packing of elastic rings with friction

Alben

2022

Proc. R. Soc. A.

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We study the deformations of elastic filaments confined within slowly shrinking circular boundaries, under contact forces with friction. We perform computations with a spring-lattice model that deforms like a thin inextensible filament of uniform bending stiffness. Early in the deformation, two lobes of the filament make contact. If the friction coefficient is small enough, one lobe slides inside the other; otherwise, the lobes move together or one lobe bifurcates the other. There follows a sequence of deformations that is a mixture of spiralling and bifurcations, primarily the former with small friction and the latter with large friction. With zero friction, a simple model predicts that the maximum curvature and the total elastic energy scale as the wall radius to the − 3 / 2 and − 2 powers, respectively. With non-zero friction, the elastic energy follows a similar scaling but with a prefactor up to eight times larger, due to delayering and bending with a range of small curvatures. For friction coefficients as large as 1, the deformations are qualitatively similar with and without friction at the outer wall. Above 1, the wall friction case becomes dominated by buckling near the wall.

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