| タイトル | New Representation of Bearings in LS-DYNA |
| 本文（外部サイト） | http://hdl.handle.net/2060/20140010773 |
| 著者（英） | Carney, Kelly S.; Miller, Brad A.; Howard, Samuel A.; Benson, David J. |
| 著者所属（英） | NASA Glenn Research Center |
| 発行日 | 2014-06-08 |
| 言語 | eng |
| 内容記述 | Non-linear, dynamic, finite element analysis is used in various engineering disciplines to evaluate high-speed, dynamic impact and vibration events. Some of these applications require connecting rotating to stationary components. For example, bird impacts on rotating aircraft engine fan blades are a common analysis performed using this type of analysis tool. Traditionally, rotating machines utilize some type of bearing to allow rotation in one degree of freedom while offering constraints in the other degrees of freedom. Most times, bearings are modeled simply as linear springs with rotation. This is a simplification that is not necessarily accurate under the conditions of high-velocity, high-energy, dynamic events such as impact problems. For this reason, it is desirable to utilize a more realistic non-linear force-deflection characteristic of real bearings to model the interaction between rotating and non-rotating components during dynamic events. The present work describes a rolling element bearing model developed for use in non-linear, dynamic finite element analysis. This rolling element bearing model has been implemented in LS-DYNA as a new element, *ELEMENT_BEARING. |
| NASA分類 | Mechanical Engineering; Computer Programming and Software |
| レポートNO | GRC-E-DAA-TN14058 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/63437 |
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