Rainflow counting algorithm for the LIFE2 fatigue analysis code
- Sandia National Labs., Albuquerque, NM (USA)
The LIFE2 computer code is a fatigue/fracture analysis code that is specialized to the analysis of wind turbine components. The numerical formulation of the code uses a series of cycle count matrices to describe the cyclic stress states imposed upon the turbine. In this formulation, each stress cycle is counted or binsed'' according to the magnitude of its mean stress and alternating stress components and by the operating condition of the turbine. This paper describes a set of numerical algorithms that have been incorporated into the LIFE2 code. These algorithms determine the cycle count matrices for a turbine component using stress-time histories of the imposed stress states. Example problems are used to illustrate the use of these algorithms. 4 refs., 4 figs.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- Sponsoring Organization:
- DOE/CE
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5385129
- Report Number(s):
- SAND-89-1795C; CONF-900136--3; ON: DE90002834
- Country of Publication:
- United States
- Language:
- English
Similar Records
Frequency-domain stress prediction algorithm for the LIFE2 fatigue analysis code
User`s guide for the frequency domain algorithms in the LIFE2 fatigue analysis code