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地震干扰不仅具有明显的随机性,而且由于地震烈度和场地土分类本身定义不明确而带来强烈的模糊性,本文在上述模糊性和随机性的基础上,建立了地震地面运动含模糊参数的平稳过程简化模型,研究了在其作用下单自由度滞后体系的模糊随机振动的分析与计算方法,由于问题的复杂性和某些数学上的困难,文中作了一些必要的简化,以作为模糊随机振动理论的初步探讨。
Seismic disturbance not only has obvious randomness, but also brings about strong ambiguity due to the inaccurate definition of seismic intensity and site soil classification itself. Based on the above-mentioned ambiguity and randomness, this paper establishes an earthquake ground motion containing fuzzy parameters. A simplified process simplification model was developed to study the method of analysis and calculation of the fuzzy random vibration of a single-degree-of-freedom lag system under its action. Due to the complexity of the problem and some mathematical difficulties, some necessary simplifications were made in the paper as blurring. Preliminary discussion on random vibration theory.