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| Statistical Estimation of Vibration Environment for a Certain Aero-engine |
| Received:November 08, 2014 Revised:February 15, 2015 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2015.01.005 |
| KeyWord:aero-engine statistical estimation normal tolerance limits non-parameter upper limits |
| Author | Institution |
| ZHAO Shuai-shuai |
Beijing Institute of Structure and Environment Engineering， Beijing ， China |
| CHEN Li-wei |
Beijing Institute of Structure and Environment Engineering， Beijing ， China |
| PENG Kang |
Beijing Institute of Structure and Environment Engineering， Beijing ， China |
| YANG Bo |
Beijing Institute of Structure and Environment Engineering， Beijing ， China |
| WU Hong |
Tianjin Relia Technology Co.， Ltd.， Tianjin ， China |
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| Abstract: |
| Objective The statistical estimation method of vibration environment was studied, which was applied to the condition that the vibration data PSD of aero-engine obeyed lognormal distribution incompletely in the whole frequency bandwidth. Methods Based on the lognormal distribution test of the vibration data, a method was used combining normal tolerance limits and non-parameter upper limits. Results The results of this method were between the traditional normal tolerance limits and the non-parameter upper limits. Conclusion The comparison results showed that this method was reasonable and feasible for determining the vibration environment for aero-engine. |
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