Spectral analysis of simulated wind records including time-varying means and gusts | |
| Author | Estoque, Alfredo Fucoy |
| Call Number | AIT Thesis no. 195 |
| Subject(s) | Wind-pressure Structural dynamics |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering of the Asian Institute of Technology, Bangkok, Thailand |
| Publisher | Asian Institute of Technology |
| Abstract | The general nature of wind is discussed briefly. Pseudo wind records, with time-varying means and including gust effects, a regenerated on a digital computer to simulate actual wind records as realistically as possible. This study is an extension of the thesis by RAMIENTOS (1967) who used a constant mean velocity, with out gust effects, in the simulation procedure. Portions of actual velocity and yaw records of a hurricane are available, for three different elevations during four different periods of the storm, for comparison with the simulated records. Parameters used in the generation of pseudo wind records are: mean velocity and yaw, velocity and yaw fluctuations in independent zones, frequency of velocity fluctuations, and a power-law velocity profile. The kinetic energy, autocorrelation functions and energy spectrum for both actual and pseudo winds are compared. It was found that the energy build-up of the simulated wind with a parabolic time-varying mean velocity compares more favorably with the energy build-up of the actual wind than the simulated wind with a linear time-varying mean. Gusts can also be simulated fairly well with the aid of random numbers. |
| Year | 1968 |
| Type | Thesis |
| School | Student Research Before 1980 |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Thesis (Year <=1979) |
| Chairperson(s) | Chiu, Arthur N.L. |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 1968 |