Off-campus UNL users: To download campus access dissertations, please use the following link to log into our proxy server with your NU ID and password. When you are done browsing please remember to return to this page and log out.
Non-UNL users: Please talk to your librarian about requesting this dissertation through interlibrary loan.
FATIGUE LIFE ESTIMATION IN BLADED DISKS BASED ON LOCAL RANDOM YIELDING (VIBRATION, COUPLED, TURBOMACHINERY, STRUCTURAL MECHANICS)
Abstract
The goal of this dissertation is to correlate the forced response of bladed disks with fatigue failure. A cantilever beam is used as the structural model of turbomachinery blades for the calculation of strain distribution of forced response. Effect of coupled bending and torsion was modeled through the offset distance between the elastic axis and center of mass. Mistuning between blades in the same compressor stage is included in the calculation of the forced response of twin mode vibration. Based on a local random yielding model, a fatigue theory which directly relates accumulated plastic hysteresis energy to the fatigue damage was employed in this study to estimate the operational life of bladed disks.
Subject Area
Mechanical engineering
Recommended Citation
CHEN, PEING-SHEING PETER, "FATIGUE LIFE ESTIMATION IN BLADED DISKS BASED ON LOCAL RANDOM YIELDING (VIBRATION, COUPLED, TURBOMACHINERY, STRUCTURAL MECHANICS)" (1985). ETD collection for University of Nebraska-Lincoln. AAI8602928.
https://digitalcommons.unl.edu/dissertations/AAI8602928