Application of Vibration Isolators with a Low Stiffness for the Strongly Vibrating Equipment

Valeev, Anvar; Kharisov, Sh. A.

doi:10.1016/j.proeng.2016.07.060

Cited by 18 publications

(7 citation statements)

References 4 publications

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“…At present, elastic elements are widely used in vibration isolation systems of vibrating machinery, to reduce the transmission of vibration and shock, 1 to reduce noise, 2 and provide elastic recovery force for reciprocating motion. 3 , 4 As an important dynamic component, the stiffness characteristics of the elastic element are directly related to the response of the dynamic system.…”

Section: Introductionmentioning

confidence: 99%

Numerical modeling and experimental testing analysis of Assembled Rubber Metal Isolator

Liu

Hua

et al. 2020

Science Progress

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In order to analyze the stiffness characteristics of Assembled Rubber Metal Isolator (ARMI) more accurately, the present work elaborates on the detailed numerical modeling and analysis process of the ARMI, considering prestressing condition. By comparing the applicability of different constitutive models, the reasonable parameters of the proposed Money-Revlon constitutive model were determined by rubber compression test and least square method. Considering the structural characteristics and complex constraints of the isolator, a step-by-step analysis method is described, based on the rigid-flexible coupling theory and the contact cutting algorithm. The full Newton-Raphson algorithm is used to simulate the mechanical behavior of elastic components in ARMI, during the whole compression-torsion deformation process, while the results are verified by theoretical calculation and practical experiments, respectively. For the assembly process, the maximum relative error between numerical results and empirical formulas is 3.97%. The derived torsional curve, under the simulated pre-stress conditions, is in good agreement with the experimental results, and the maximum error is less than 8.43%. The achieved accuracy is significantly improved, compared to the existing simulation model that does not consider the pre-compression process. The proposed approach provides an effective method for the analysis of same type vibration isolator.

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Section: Introductionmentioning

confidence: 99%

Numerical modeling and experimental testing analysis of Assembled Rubber Metal Isolator

Liu

Hua

et al. 2020

Science Progress

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“…Стоит отметить, что упругие конструкции и материалы с нелинейной силовой характеристикой с практически пологим участком получили названия систем с квазинулевой жесткостью [7]. Такие системы на данный момент активно развиваются в области защиты от вибрации и ударов, поскольку обес-печивают практически полное отсутствие передаваемой динамической силы, что делает их крайне эффективными средствами виброизоляции [8,9]. Обеспечение практически нулевой (квазинулевой) жесткости при определенной нагрузке позволит одновременно иметь малую частоту собственных колебаний, широкий диапазон изолируемых частот и очень высокие виброизоляционные свойства, больше, чем у традиционных материалов или виброизоляторов.…”

Section: Resultsunclassified

Development of Vibration-Proof Metamaterials to Reduce the Negative Impact on Oil and Gas Facilities

Valeev

Kolchin

Горбунова

et al. 2019

ntj-oil

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“…Note that elastic structures and materials with a nonlinear force characteristic with an almost flat section are called as systems with quasi-zero stiffness [3]. Such systems are currently actively developed in the field of protection against vibration and shock, since they ensure the almost complete absence of transmitted dynamic force, which makes them extremely effective for vibration isolation [4,5]. Providing almost zero (quasi-zero) stiffness at a certain load allows simultaneously obtaining low natural frequency, wide range of isolable frequencies.…”

Section: Vibration Isolating Metamaterials With Quasi-zero Stiffnessmentioning

confidence: 99%

Complex condition monitoring for industrial equipment via remote strain gauge diagnostics and vibration isolating metamaterials

Valeev¹

2019

Vib. proced.

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Complex condition monitoring for industrial equipment is offered in this paper. The complex monitoring consists of three parts. The first part contains careful diagnostics of defects. It was greatly improved by using a new method of identification of excitation sources. This method is based on defect location with the help of remote strain gauge control and detects the exact coordinates of the detected defects. The second part covers vibration isolation of industrial equipment. For this purpose, metamaterials with quasi-zero stiffness are offered. They can almost totally isolate dynamic forces passing through them. The third part is dedicated to decrease oscillations of the equipment via dynamic absorbers. Their application can be improved by careful control of adjustment. It is offered to control the phase of oscillations on two ends of the spring.

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Application of Vibration Isolators with a Low Stiffness for the Strongly Vibrating Equipment

Cited by 18 publications

References 4 publications

Numerical modeling and experimental testing analysis of Assembled Rubber Metal Isolator

Numerical modeling and experimental testing analysis of Assembled Rubber Metal Isolator

Development of Vibration-Proof Metamaterials to Reduce the Negative Impact on Oil and Gas Facilities

Complex condition monitoring for industrial equipment via remote strain gauge diagnostics and vibration isolating metamaterials

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