On the reduction of the pre-processing effort and the application of a contact meshing approach for complex jet engine component assemblies

Research output: Contribution to book/conference proceedings/anthology/reportConference contributionContributedpeer-review

Abstract

A significant proportion of the work effort for finite element (FE) analysis is spent for pre-processing activities, especially for complex structural components and component assemblies. An exclusive use of hexahedron (hex) elements increases the meshing effort substantially compared to tetrahedral elements. An automated method to generate high quality hexahedral meshes for an arbitrary geometry does not exist. In this work, commercially available FE software tools for meshing were investigated with the focus on an advantageous pre-processing effort. The evaluation showed that the software package NX (Siemens PLM Software) offers robust advanced semiautomatic hex meshing capabilities. Furthermore, a Contact Meshing Approach (CMA) was elaborated to reduce the effort of the challenging and time-consuming geometry decomposition significantly. Using the example of an intermediate pressure compressor it can be shown that the pre-processing effort time can be reduced up to 75%. Due to the independent meshes, element transitions in the geometry become redundant. This results in lower total element numbers and higher mesh qualities and subsequently leads to more efficient calculations. Moreover, the increased element quality has positive effects on the result quality.

Details

Original languageEnglish
Title of host publicationASME Turbo Expo 2014
PublisherThe American Society of Mechanical Engineers(ASME)
Number of pages8
Volume7A
ISBN (electronic)978-0-7918-4576-9
Publication statusPublished - 2014
Peer-reviewedYes

Publication series

SeriesASME Turbo Expo : Turbine Technical Conference and Exposition
Volume7A

Conference

TitleASME Turbo Expo 2014: Turbine Technical Conference and Exposition, GT 2014
Duration16 - 20 June 2014
CityDusseldorf
CountryGermany

External IDs

ORCID /0000-0003-2653-7546/work/142249372

Keywords

ASJC Scopus subject areas