Back to Search
Start Over
Parametric modeling and updating for bolted joints of aeroengine casings
- Source :
- Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. 230:2940-2951
- Publication Year :
- 2016
- Publisher :
- SAGE Publications, 2016.
-
Abstract
- To establish accurate finite element (FE) model of bolted joint structures of aeroengine stator system (casings), this work implements the parametric FE modeling and updating of bolted joints of aeroengine stator system with multi-characteristic responses (multi-object). Firstly, the parametric FE modeling approach of bolted joint structure was developed based on the thin layer element method. And then the FE model updating thought of aeroengine stator system was developed based on the probabilistic analysis method. Finally, the parametric modeling and updating of the bolted joints of aeroengine stator system with multi-characteristic responses was completed by the optimization iteration calculation of objective function based on the proposed methods and the static stiffness testing data. Through the parametric modeling of bolted joint structures based on the thin layer method, the complexity of FE model of aeroengine casings with many bolted joint structures is reduced. As shown in the FE model updating of casings with multi-characteristic responses analysis, the static stiffness from the updated model are very close to the test data, in which the maximum relative error decreases to 3.9% from 30.52% and the others are less than 3%, so that the design precision of aeroengine stator system with the many and wide variety of bolted joints gets a great improvement. Moreover, the proposed methods of parametric modeling and model updating for multi-characteristic responses are validated to be effective in the simulation and equivalent of the mechanical characteristics of bolted joints in complex systems like aeroengine stator system.
- Subjects :
- Stator
business.industry
Computer science
020209 energy
Mechanical Engineering
Monte Carlo method
020101 civil engineering
02 engineering and technology
Structural engineering
Finite element method
0201 civil engineering
law.invention
law
Bolted joint
Parametric model
0202 electrical engineering, electronic engineering, information engineering
Probabilistic design
business
Parametric statistics
Subjects
Details
- ISSN :
- 20412983 and 09544062
- Volume :
- 230
- Database :
- OpenAIRE
- Journal :
- Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
- Accession number :
- edsair.doi...........e059494fdd3bfca5e7afb2ac9a9fb3b2