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Fatigue behavior of flexhoses and bellows due to flow-induced vibrations
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Desai, P. V. Thornhill, L. |
| Copyright Year | 1986 |
| Description | The analysis and results developed in a fresh approach to calculate flow induced vibration response of a flexible flow passage are summarized. The vibration results are further examined in the frequency domain to obtain dominant frequency information. A cumulative damage analysis due to cyclic strains is performed to obtain the number of cycles to failure for a metallic bellows of particular specifications under a variety of operational conditions. Sample plots of time and frequency domain responses are included. The complex listing of a computer program is provided. The program successively executes each of the analyses needed to calculate the vibration response, the frequency response, the cyclic strains and the number of cycles to failure. The program prompts the user for necessary input information. Sample data from the program is provided. The fatigue life results obtained by the computer model lie within an acceptable range of previously measured available data. |
| File Size | 1915009 |
| Page Count | 84 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19860010191 |
| Archival Resource Key | ark:/13960/t02z6404x |
| Language | English |
| Publisher Date | 1986-01-01 |
| Access Restriction | Open |
| Subject Keyword | Structural Mechanics Domains Bellows Fatigue Life Vibration Failure Analysis Cyclic Loads Fluid Flow Failure Modes Computerized Simulation Frequencies Flexibility Computer Programs Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
