Damping performance of viscoelastic material applied to blades
Visualitza/Obre
10.23967/j.rimni.2018.09.002
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/165442
Tipus de documentArticle
Data publicació2019
EditorUniversitat Politècnica de Catalunya. CIMNE
Condicions d'accésAccés obert
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
:
Reconeixement-NoComercial-CompartirIgual 3.0 Genèrica
Abstract
High-frequency vibration can result in failure of the working blades. So suppressing vibration failure of blades becomes more and more important. Damping performance of viscoelastic block on blades is researched based on principle of finite element method, contact theory of elastic body and the solving equations of natural frequency. Modal and harmonic response is analyzed to obtain natural frequency, vibration displacement and stress distribution, in which different finite element models of blade are established. Effects of different adding position and thickness of viscoelastic block on damping performance are analyzed. Elastic modulus and loss factor of viscoelastic material is also changed to study their influence on damping performance. The results show that viscoelastic block applied to blades has excellent performance in reducing blade vibration. When viscoelastic block is added to mortise side, the damping performance of blade is the best. In addition, thickness of viscoelastic block and parameters of viscoelastic material have a significant effect on vibration reduction of blade.
CitacióWang, F.; Wei, Z.; Xu, B. Damping performance of viscoelastic material applied to blades. "Revista internacional de métodos numéricos para cálculo y diseño en ingeniería", 2019, vol. 35, núm. 1.
ISSN0213-1315
1886-158X
1886-158X
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
RIMNI350120.pdf | 18,66Mb | Visualitza/Obre |