Characteristics of pendulum sliding bearings used as seismic isolators

Nadein, V. A.; Drozdov, Yu. N.; Пучков, В. Н.; Puchkov, M. V.

doi:10.3103/s1068798x07020050

Cited by 3 publications

(12 citation statements)

References 1 publication

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“…In that case, there is considerable likelihood that the researcher will fail to notice the boundary between steady friction and pathological friction. This second error may also be noted in [9].…”

Section: Methodsmentioning

confidence: 77%

“…(3) to approximate the experimen tal points in [9]. That indicates constancy of the fric tional coefficient and the applicability of the Amon tons-Coulomb law in the specified conditions-that is, the load range, the temperature range, the presence of lubricant between the contacting surfaces, and the other experimental conditions.…”

Section: Methodsmentioning

confidence: 95%

“…One type of slipping friction pair was studied with variation in the basic conditions (normal load, tem perature, and speed) in [9]. On that basis, general con clusions may be drawn regarding the influence of these conditions on the steady frictional region.…”

Section: Methodsmentioning

confidence: 99%

“…We now convert the experimental results presented in mirror form in [9] to the standard Amontons-Cou lomb form in Eq. (2).…”

Section: Methodsmentioning

confidence: 99%

“…This simple formula significantly facilitates the solution of engineering problems but often leads to incorrect interpretation of experimental and theoreti cal results. We will now illustrate this methodological error in the analysis of the forces within a frictional pair on the basis of the results in [9].…”

mentioning

confidence: 99%

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A methodological error in analyzing the forces within a frictional pair

Aleksandrov

2014

Russ. Engin. Res.

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Section: Methodsmentioning

confidence: 77%

Section: Methodsmentioning

confidence: 95%

Section: Methodsmentioning

confidence: 99%

“…We now convert the experimental results presented in mirror form in [9] to the standard Amontons-Cou lomb form in Eq. (2).…”

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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A methodological error in analyzing the forces within a frictional pair

Aleksandrov

2014

Russ. Engin. Res.

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Modelling and Analysis of Base Isolated Structures with Friction Pendulum System Considering near Fault Events

Petti

Polichetti²,

Lodato

et al. 2013

OJCE

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The seismic behavior of base isolated structures with friction pendulum slide bearings devices subjected to near fault events characterized by significant vertical ground motion components is investigated. In particular, in order to evaluate the effects of vertical components on seismic response, non-linear dynamic analysis, carried out by using several numerical models, have been performed by considering two near-fault seismic events, L'Aquila 2009 and Emilia Romagna 2012. The obtained results show that increasing vertical seismic motion base shear significantly increases while relative displacements increase very little.

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Hybrid Modeling of Offshore Platforms’ Stress-Deformed and Limit States Taking into Account Probabilistic Parameters

Shmal¹,

Nadein²,

Махутов³

et al. 2020

Probability, Combinatorics and Control

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Offshore platforms should be referred to critically and strategically important objects of a technosphere due to technological and operational challenges, on the one hand, and the danger potential level, on the other hand. Environmental, social and economic losses occurred over several decades of accidents and disasters in unique Great Britain, Norwegian. The Russian and the USA platforms were evaluated in death of dozens of operators, destruction of platforms, environment contamination and hence in multi-bullion losses. All of these indicate insufficiency of currently taken engineering solutions, providing structure strength, operational life and safety. The scientific, design, expert and supervising organizations in Russia and in the world are developing and improving mathematical and physical methods, implementing the probabilistic formulations for accidents and disasters, risk assessment and risks reduction on offshore platforms. The solutions of the following problems are included: extension of the comprehensive computational and experimental strength, operational life and survivability analysis to the cases of nonroutine events, accidental and catastrophic conditions; numerical justification of modelling of critical elements, zones and points with the maximum tension, deformations and damages occurring under impacts of external extreme seismic, ice, wind, low temperature; implementation of comprehensive diagnostic methods for damage states evaluation within nonlinear and probabilistic fracture mechanics; and use of new structural design and technological systems for reduction of negative extreme impacts as well as emergency protection systems. The solution of the specified problems is illustrated by case studies of the Russian specialists for each life cycle stage of the platforms offshore Caspian and Kara Seas and Sea of Okhotsk.

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Characteristics of pendulum sliding bearings used as seismic isolators

Cited by 3 publications

References 1 publication

A methodological error in analyzing the forces within a frictional pair

A methodological error in analyzing the forces within a frictional pair

Modelling and Analysis of Base Isolated Structures with Friction Pendulum System Considering near Fault Events

Hybrid Modeling of Offshore Platforms’ Stress-Deformed and Limit States Taking into Account Probabilistic Parameters

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