Frequency domain analysis of pre-stressed elastomeric vibration isolators

Somanath, S.; Marimuthu, R.; Shankar, K.

doi:10.1016/j.dt.2022.10.004

Cited by 7 publications

(3 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Regarding dynamic characteristics, numerical results successfully capture peak values on mechanical impedance curves and enable more precise predictions for input and transfer mechanical curves of the isolator. The prediction of the dynamic characteristics of the vibration isolators in [8,17] is achieved through extensive optimization of the damping parameters of the rubber material. In contrast, this study directly determines the dynamic parameters of the rubber material through dynamic shear testing, thereby enabling accurate prediction of the isolators' dynamic characteristics; 4.…”

Section: Discussionmentioning

confidence: 99%

“…Fragasso et al [8] analyzed the influence of preload on the transmissibility and dynamic stiffness of marine vibration isolators through simulation and four-pole parameter tests, and Modhej et al [16] studied the energy dissipation capacity of steel-rubber dampers at different amplitudes. Although the above studies have analyzed the static or dynamic performance of rubber vibration isolators, there are few studies on the simultaneous analysis of static and dynamic performance [17,18].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Numerical and Experimental Study of Static and Dynamic Characteristics of Marine Shear-Compression Isolators

Zhang,

Zhao,

You

2024

JMSE

View full text Add to dashboard Cite

Due to their ability to buffer and attenuate vibrations, as well as their low cost, rubber-based isolators are widely used in military and civilian vessels. Since these isolators are part of a ship’s structure, the accurate prediction of their static and dynamic performance is essential for overall structural design. In this paper, two kinds of marine shear-compression rubber isolators of different models in the same series are taken as the research objects, and the static and dynamic constitutive models of the rubber materials are obtained through material tests, which are used as inputs to accurately predict the static and dynamic characteristics of the isolators in the three translational directions through numerical calculations. The effects of size and preload force on the dynamic characteristics of the vibration isolators were analyzed as were the reasons for the peaks in the impedance curves. The results show that the preload force increases the amplitudes of the peak transfer impedance in the X direction and decreases it in the Z direction. On the other hand, as the size of the vibration isolator increases, the peak frequency of the transfer impedance in the X direction increases, while in the Y and Z directions, the first-order peak frequency decreases and the second-order peak frequency increases. The peaks of the transfer impedance curves appear due to the resonance of the embedded metal blocks, and the order of appearance of the resonance modes is fixed.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical and Experimental Study of Static and Dynamic Characteristics of Marine Shear-Compression Isolators

Zhang,

Zhao,

You

2024

JMSE

View full text Add to dashboard Cite

show abstract

“…The Payne effect is more pronounced with higher filler content. Other nonlinear viscoelastic phenomena are present, including hysteresis, and dependence on pre-strain [46] and strain rate [45].…”

Section: Rubber and Rubber-like Isolatorsmentioning

confidence: 99%

Measurement, Modeling, and Analysis of the Dynamic Properties of Resilient Elements Used for Vibration Isolation

Sun,

Thompson

2023

Journal of Vibration and Acoustics

View full text Add to dashboard Cite

Resilient elements are widely applied for vibration and noise control in many areas of engineering. Their complex dynamic stiffness gives fundamental information to describe their dynamic performance and is required for predicting structure-borne sound and vibration using dynamic modelling. Many laboratory measurement methods have been developed to determine the dynamic properties of resilient elements. This paper presents a review of recent developments of the measurement methods from the perspective of force-displacement relations of the resilient element assembly rather than of their material properties. To provide context, the review begins with an introduction to modelling methods for resilient elements, especially for rubber and rubber-like isolators, and three standardized measurement methods are introduced. Recent developments are then discussed including methods to extend the frequency range, which are mainly developments of the indirect method. Mobility methods, modal-based methods, recent active frequency-based substructuring (FBS) and inverse substructuring (IS) methods to study the dynamic properties of resilient elements are also described. Laboratory test rigs and the corresponding identification methods are outlined. Methods to evaluate nonlinear dynamic properties of resilient elements by laboratory measurements are also discussed. Finally, the review is concluded by discussing advantages and limitations of the existing methods and giving suggestions for future research.

show abstract

Near resonance vibration isolation on a levered-dual response (LEDAR) Coulomb-damped system by differential preloads/offsets in linear springs

Toluwaloju,

Thein,

Halim

2024

Appl. Math. Mech.-Engl. Ed.

View full text Add to dashboard Cite

Frequency domain analysis of pre-stressed elastomeric vibration isolators

Cited by 7 publications

References 22 publications

Numerical and Experimental Study of Static and Dynamic Characteristics of Marine Shear-Compression Isolators

Numerical and Experimental Study of Static and Dynamic Characteristics of Marine Shear-Compression Isolators

Measurement, Modeling, and Analysis of the Dynamic Properties of Resilient Elements Used for Vibration Isolation

Near resonance vibration isolation on a levered-dual response (LEDAR) Coulomb-damped system by differential preloads/offsets in linear springs

Contact Info

Product

Resources

About