STUDYING OF THE ROTATING HOUSE STRUCTURE, PART 3: EFFECT OF DUFFING NON-LINEAR ELASTIC FORCE

This paper presents a new rotating house model characterized by four parts, these are non-viscous and viscous damping, Coulomb friction damping and Duffing nonlinear elastic force. The purpose is to find out the optimal values of model parameters, so that the paper has proposed a method to analyze the structural system of the rotating house by numerical method and Monte Carlo simulation. The behavior of the sytem is thoroughly analyzed through three parameters are Duffing nonlinear coeffcient, amplitude and frequency of excited force. The obtained results in this paper has reflected that the response of the structural system is very close to the actual working of the rotating house structure under acting on harmonic and random force. The analysis in here will be an essential issue for design engineers who can encounter the same circumstances to the rotating house structure.