论文信息 - A New Tool for Design and Certification of Aircraft Turbine Rotors

A New Tool for Design and Certification of Aircraft Turbine Rotors

This paper summarizes recent enhancements to a probabilistic damage tolerance software code, DARWIN that can be used for design certification of aircraft jet engine titanium disks/rotors that may contain melt-related anomalies. Evaluations of DARWIN by engine manufacturers are also discussed, including comparisons with existing codes for accuracy and time efficiency In addition, relevant test results, including various fatigue tests on material containing melt-related anomalies, are summarized.

[1] D. Brooksbank,et al. STRESS FIELDS AROUND INCLUSIONS AND THEIR RELATION TO MECHANICAL PROPERTIES , 1972 .

[2] Gerald R. Leverant,et al. A Probabilistic Approach to Aircraft Turbine Rotor Material Design , 1997 .

[3] S. Li,et al. Symmetric weak-form integral equation method for three-dimensional fracture analysis , 1998 .

[4] R. C. McClung,et al. Fatigue crack growth of titanium rotor alloys in vacuum and air , 1999 .

[5] H. R. Millwater,et al. Efficient and Accurate Methods for Probabilistic Analysis of Titanium Rotors , 2000 .

[6] Michael P. Enright,et al. Turbine Rotor Material Design , 2000 .

[7] David S. Riha,et al. A Probabilistically-Based Damage Tolerance Analysis Computer Program for Hard Alpha Anomalies in Titanium Rotors , 2000 .

[8] Harry R. Millwater,et al. Probabilistic methods for Design Assessment of Reliability with Inspection (DARWIN) , 2000 .

[9] Y.-T. Wu,et al. PROBABILISTIC FATIGUE LIFE SENSITIVITY ANALYSIS OF TITANIUM ROTORS , 2000 .

[10] R. C. McClung,et al. Sensing Crack Nucleation and Growth in Hard Alpha Defects Embedded in Ti-6A1-4V Alloy , 2001 .

[11] Harry R. Millwater,et al. A Convergent Probabilistic Technique for Risk Assessment of Gas Turbine Disks Subject to Metallurgical Defects , 2002 .