CAE Process for Developing Cylinder Head Design Including Statistical Correlation and Shape Optimization

2010-01-0494

04/12/2010

Event
SAE 2010 World Congress & Exhibition
Authors Abstract
Content
Design of cylinder heads involves complex constraints that must satisfy thermal, strength, performance, and manufacturing requirements which present a great challenge for successful development. During development of a new highly loaded cylinder head, CAE methods predicted unacceptable fatigue safety factors for the initial prototype design. Hydropulsator component testing was undertaken and the results were correlated with the analysis predictions using a statistical method to calculate failure probability. Shape optimization was undertaken to improve high cycle fatigue safety in vulnerable regions of the cylinder head water jacket for the subsequent design release. The optimization process provided more efficient design guidance than previously discovered through a traditional iterative approach. Follow-on investigations examined other shape optimization software for fatigue improvement in the cylinder head. This paper describes the analysis process for successful development of new cylinder heads, statistical methods for correlation, and advantages and challenges with using TOSCA and Hyperstudy software for shape optimization.
Meta TagsDetails
DOI
https://doi.org/10.4271/2010-01-0494
Pages
10
Citation
Osterwisch, C., DeJack, M., and Smolnikar, M., "CAE Process for Developing Cylinder Head Design Including Statistical Correlation and Shape Optimization," SAE Technical Paper 2010-01-0494, 2010, https://doi.org/10.4271/2010-01-0494.
Additional Details
Publisher
Published
Apr 12, 2010
Product Code
2010-01-0494
Content Type
Technical Paper
Language
English