SIMULATION OF RANDOM LOAD FATIGUE IN LABORATORY TESTING,
Abstract
The methods used in laboratory simulation of random service load conditions, that lead in practice to fatigue failure e.g. aircraft structures, are reviewed. First, the inter-relation of the atmospheric turbulence with the resulting loads on the aircraft are discussed. Then follows an analysis and interpretation of service load histories and a review and comparison of the methods in use for simulating service load spectra of arbitrary and random load sequences. Both random loading, using discrete load levels or analogous random process testing, are discussed. Full scale testing is also reviewed. In appendices, stationary random processes and fewer spectral density functions an evaluation of probability distributions of RMS gust velocities and some damage theories are presented. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1970
- Accession Number
- AD0708327
Entities
People
- T. J. Ravishankar
Organizations
- University of Toronto