CHARACTERISTICS AND SIMULATING METHOD OF PULSATING WIND

Wind vibration often has more effectes on the design of tall buildings, high-tower structures and big-span structures, for the periods of the structures are all long. Having exploried a great number of records of pulsating wind in the spot, this paper studies the power spectrum of pulsating wind velocity by using parameter identification technique, and the comparison with the spectrum of level wind velocity of Davenport. Also, using Auto-regressive Moving Average Model and parameter identification technique, the paper presents a method to simulate pulsating wind according to the spectra of level wind velocity of Davenport, provided by Xi’an Institute of Heat Engineering and presentedin this paper, respectively.