Generalized Maxwell Damping Energy Dissipation Structure Random Wind Vibration Response And The Similar To Wind Up With Values

This article mainly studied about the viscoelastic damper with support under wind vibration excitation response, the article respectively using common and generalized Maxwell viscoelastic damper to solve the structure under random wind vibration response based on the specification and approximate of davenport wind spectrum, and calculate the approximate value of wind load.With control device of wind vibration control equations of motion for non classical damping structure and the characteristics of the asymmetric structure, the traditional real modal decoupling conditions can’t meet, so need to use complex modal method for decoupling; First of all, the top of multiple-degree-of-freedom system according to the first vibration mode, on the basis of the random vibration theory structure wind vibration response analysis type, thus the method of the structure is decomposed into a series of equivalent single degree of freedom system is established; With the Specification Davenport spectrum calculation method, through a complex mode and enlargement of order to decouple the structure calculation, with the ordinary and generalized Maxwell damping structure based on the current specification Davenport spectrum random response and the analytical method of equivalent wind load values.The method to calculate wind for the approximate Davenport spectrum, as a result of the pulsating wind spectrum is a rational fraction wind spectrum; Firstly, you need to generate the pulsating wind spectrum by linear filtering process, and the three parameters fitting equation; reduceding order into two first-order equations, and then decoupling arithmetic by the method of complex modal method and expanding order, to obtain the analytical solution of the structure random wind vibration response based on the approximate equivalent wind spectrum corresponding to the first vibration mode.