Modal Analysis of Bleed Air System based on NASTRAN
- 10.2991/icadme-15.2015.54How to use a DOI?
- Bleed air system, Modal analysis, NASTRAN.
Based on the analysis of structure composition, material properties, operating conditions of bleed air system, a finite element model is developed and the natural frequencies and vibration modes are obtained by NASTRAN. The results show that the first ten natural frequencies comparatively dense, each order natural frequency in operating state are lower than the corresponding frequency in non-operating state. The deformations are mainly concentrated in the APU pipe and the two branches arranged with concentrated mass components, and the maximum deformation positions under the two states are different in the same order. This work can assist in design of civil-aircraft bleed air system and similar high temperature and high pressure duct system.
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Juan Liu PY - 2015/10 DA - 2015/10 TI - Modal Analysis of Bleed Air System based on NASTRAN BT - Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering PB - Atlantis Press SP - 272 EP - 277 SN - 2352-5401 UR - https://doi.org/10.2991/icadme-15.2015.54 DO - 10.2991/icadme-15.2015.54 ID - Liu2015/10 ER -