Vibration and sound damping in polymers

Geethamma, V. G.; Asaletha, R.; Kalarikkal, Nandakumar; Thomas, Sabu

doi:10.1007/s12045-014-0091-1

Cited by 58 publications

(33 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…15 that the amplitude limit in the time domain is 0.4 pixel to 0. 4 -pixel (1 pixel = 0.2") at the speed of 3000 rpm without the rubber shock absorber, while the amplitude limit with the rubber shock absorber is 0.2 pixel to 0.2 -pixel. The spectrum can be obtained by the Fourier transform of the results in Fig.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Effects of rubber shock absorber on the flywheel micro vibration in the satellite imaging system

Changcheng

Jia

et al. 2016

Photonic Sens

View full text Add to dashboard Cite

When a satellite is in orbit, its flywheel will generate micro vibration and affect the imaging quality of the camera. In order to reduce this effect, a rubber shock absorber is used, and a numerical model and an experimental setup are developed to investigate its effect on the micro vibration in the study. An integrated model is developed for the system, and a ray tracing method is used in the modeling. The spot coordinates and displacements of the image plane are obtained, and the modulate transfer function (MTF) of the system is calculated. A satellite including a rubber shock absorber is designed, and the experiments are carried out. Both simulation and experiments results show that the MTF increases almost 10 %, suggesting the rubber shock absorber is useful to decrease the flywheel vibration.

show abstract

Section: Resultsmentioning

confidence: 99%

“…Among them, the vibration isolation method is most widely used. The principle of the vibration isolation method is adding a resilient liner (such as spring, rubber mats, and blankets) between the object and the supporting surface to isolate the vibration [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Effects of rubber shock absorber on the flywheel micro vibration in the satellite imaging system

Changcheng

Jia

et al. 2016

Photonic Sens

View full text Add to dashboard Cite

show abstract

“…Vibration characteristics such as the natural frequency and damping ratio of composite materials are very important especially in the fields of aerospace, automotive and construction [20]. Sometimes, vibration is a desirable physical phenomenon; however, successive oscillation in the structures often caused problems like noise generation and fatigue cracks initiation [21]. Accordingly, improving composite materials by increasing the damping properties is substantially important.…”

Section: Eiras and Pessanmentioning

confidence: 99%

Mechanical and free vibration properties of clamshell particles/polyester composites

Mostafa

Hunain

Khafaji

2020

Mater. Res. Express

View full text Add to dashboard Cite

In this work, an experimental investigation was implemented to identify the effect of adding clamshell powder (CSP) into the polyester matrix on the tensile and impact properties along with vibration characteristics of the particulate composites towards using eco-friendly reinforcement phase. Different weight ratios of clamshell powder, ranged from 0 to 20 wt%, were loaded into the polyester resin with particle sizes ranged from 25 to 75 μm. Tensile, Charpy impact and free vibration tests were performed to the specimens fabricated from the neat polyester and CSP-filled polyester. The results showed that the inclusion of CSP into the polyester matrix could improve the tensile modulus of the polyester up to 50% when the CSP weight ratio equals to 12%. Meanwhile, the strain-to-failure, tensile and impact strengths showed decreasing trends with increasing the CSP filler content owing to the weak adhesion (bonding) strength between CSP and the polyester matrix. Maximum improvements in the fundamental natural frequency and damping ratio of CSP-filled polyester were 24% (at 12 wt% of CSP) and 21% (at 8 wt% of CSP), respectively. Based on the results, the clamshell powder could be used as a very cheap bio-filler material within the polyester matrix if the high stiffness composites with improved damping properties are required.

show abstract

“…Special consideration must be taken when designing structural components made from plastic materials, as they typically have much lower compressive strength and toughness when compared to metals [8][9][10]. In spite of this, plastic materials are sometimes the best choice for a variety of reasons, such as manufacturing cost [11][12][13], electrical and thermal resistance [14][15][16][17], vibration absorption [18][19][20], and recycling needs [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Critical Buckling Load of Thin-Walled Plastic Cylinders in Axial and Radial Loading: Overview and FEA Case Study

Pereira¹,

Patterson²,

Lee³

et al. 2019

Preprint

View full text Add to dashboard Cite

This technical note discusses the theoretical static buckling load of thin-walled plastic cylinders under axial and radial loading. While the buckling of thin-walled cylinders is a well-researched topic, a variety of new design and manufacturing methods, as well as advances in polymer technologies, have brought plastic structures into prominence in recent years, necessitating a re-examination and exploration of their behavior under buckling loads. This work provides a background review of the problem, a discussion of the appropriate buckling equations, an extensive case study to demonstrate the concepts, and a brief review of some previously developed thin-walled structure reinforcement techniques. The presented work and results are intended to provide a helpful perspective, background review, and starting place for future research on the buckling behavior of thin plastic structures.

show abstract

Vibration and sound damping in polymers

Cited by 58 publications

References 3 publications

Effects of rubber shock absorber on the flywheel micro vibration in the satellite imaging system

Effects of rubber shock absorber on the flywheel micro vibration in the satellite imaging system

Mechanical and free vibration properties of clamshell particles/polyester composites

Critical Buckling Load of Thin-Walled Plastic Cylinders in Axial and Radial Loading: Overview and FEA Case Study

Contact Info

Product

Resources

About