Structural Analysis of a Rotary Combustion Engine Rotor

870447

06/01/1987

Event
SAE International Congress and Exposition
Authors Abstract
Content
The purpose of this paper is to describe the methodology used at John Deere Tech. Int'l to perform detailed analyses of Wankel engine rotors. Only limited numerical results are shown since these would vary with engine designs and applications. The finite element method is used to compute temperature distribution in the rotor and also compute pressure, acceleration and thermal stress due to the imposed loads. The results of this analysis can be used to identify structural inadequacies, reduce weight, or determine growth potential.
An experimental check of the validity of the FEM results was made. Correspondence between strain gage results and the computed FEM pressure stress is discussed. The varying stress level during engine rotation at critical elements in the rotor is ‘discussed in detail. Specialized finite element techniques such as submodeling are used to obtain the desired light weight rotor design while preserving structural adequacy.
Meta TagsDetails
DOI
https://doi.org/10.4271/870447
Pages
12
Citation
Mannisto, J., and Bazaz, R., "Structural Analysis of a Rotary Combustion Engine Rotor," SAE Technical Paper 870447, 1987, https://doi.org/10.4271/870447.
Additional Details
Publisher
Published
Jun 1, 1987
Product Code
870447
Content Type
Technical Paper
Language
English