Effect of Design Variables, Temperature Gradients, and Speed on Life and Reliability of a Rotating Disk

Abstract

A generalized methodology to predict the fatigue life and reliability of rotating disk such as used for aircraft engine turbines and compressors is advanced. The approach incorporates the computed life of elemental stress volumes to predict system life and reliability. Disk speed and thermal gradients as well as design variables such as disk diameter and thickness and bolt hole size, number, and location are considered.