Results 11 to 20 of about 74,827 (269)

The effect of sulfur ratio to 2-2'-dithiobenzothiazole accelerator on viscoelastic, vibration damping, and thermal stability properties of gum natural rubber vulcanizates [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2023
It is well-recognized that the sulfur to accelerator (S/A) ratio greatly influences the nature of rubber vulcanizates. Viscoelasticity, vibration damping, and thermal stability are important properties of rubber vulcanizates used in vibration isolators.
Adi Cifriadi   +3 more
doaj  

Analysis and treatment of vibration of 1000MW secondary reheat steam turbine with super-long single-support shafting [PDF]

open access: yesITM Web of Conferences, 2022
In the context of new energy grid connection, thermal power units are gradually developing in the direction of large-scale and long-axis. However, due to the static deflection of the long shaft system, the rotor presents the shape of a lift curve during ...
Zhang Kai, Zhao Yongli, Li Libo
doaj   +1 more source

Analysis on vibration response to thermal bending on rotor of centrifugal compressor set caused by radial friction

open access: yesYou-qi chuyun, 2022
Radial friction is one of the common faults during the operation of centrifugal compressor set, and the extra heat generated thereby may result in the thermal bending of rotor, which has complicated impact on the rotor vibration.
Meng WANG   +3 more
doaj   +1 more source

Local symmetry distortion induced anomalous thermal conduction in thermoelectric layered oxyselenides

open access: yesnpj Computational Materials, 2023
Polyhedral distortion, associated closely with the atomic arrangement and interatomic interactions, drives many unique behaviors in solids, such as phase transition and negative thermal expansion.
Bin Wei   +10 more
doaj   +1 more source

Study on Thermal Unstable Vibration of Rotor under Journal Whirl with Large Amplitude in Journal Bearing

open access: yesInternational Journal of Rotating Machinery, 2020
To investigate the thermal unstable vibration caused by journal whirls with large amplitude in journal bearing, an analysis model of lubricant film thickness is established.
Qilong Hu, Min Zhu, Jiangang Yang
doaj   +1 more source

Active Vibration Control of Timoshenko Sigmoid Functionally Graded Porous Composite Beam with Distributed Piezoelectric Sensor/Actuator in a Thermal Environment

open access: yesDesigns, 2022
This work presents the study of the dynamics and active control of a cantilever sigmoid FGM beam with porosities in a thermal environment. During this study, we considered the Timoshenko beam’s theory combined with the finite element method (FEM).
Khalid El Harti   +2 more
doaj   +1 more source

Thermal Conductivity of Sodium Silicate Glasses and Melts: Contribution of Diffusive and Propagative Vibration Modes

open access: yesFrontiers in Materials, 2021
The thermal conductivity of silicate melts and glasses is an important physical property for understanding the temperature distribution in high-temperature metallurgical processes; however, the mechanism of heat conduction in these non-crystalline ...
Sohei Sukenaga   +10 more
doaj   +1 more source

Varied effects of shear correction on thermal vibration of functionally graded material shells

open access: yesCogent Engineering, 2014
The effects of varied shear correction coefficient on the first-order transverse shear deformation result of functionally graded material (FGM) thick circular cylindrical shells under thermal vibration are investigated and computed by using the ...
C.C. Hong
doaj   +1 more source

Composite bond strength improvement with thermal vibration: an experimental non-randomised study

open access: yesКубанский научный медицинский вестник, 2021
Background. Secondary caries formation is a relevant issue due to poor long-term quality of composite fillings, with inherent subsequent chipping and cracking of the material.
A. A. Gushchin   +3 more
doaj   +1 more source

Vibration and flutter analysis of damaged composite plates under thermal environment and its passive control using piezoelectric patches

open access: yesComposites Part C: Open Access, 2023
The internal flaws will largely affect the structural and aeroelastic characteristics of composite structures, especially at high thermal environments. The influence of thermal conditions on the passive control of vibration and flutter characteristics of
Vinu M. Kuriakose, V.M. Sreehari
doaj   +1 more source

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