本文提出一种将结构在随机激励下某些点(自由度)上的均方响应作为约束的动力学设计方法。
This paper presents a dynamic design method in which the mean square responses for certain points on the structure under random excitation are regarded as constraints.
考虑地震作用和结构参数的随机性，建立了钢筋砼结构药非线性随机动力学模型。
A nonlinear random dynamic mode with stochastic variations of seismic action and structural parameters is constructed.
本文讨论了材料退化失效的基本概念，给出了微观结构随机演化的动力学方程，统一导出了失效几率，可靠性、失效几率密度、失效率和平均寿命。
Some key concepts in degradated failure of materials is discussed. The stochastic evolution equation of defect clusters is given and the failure probability reliability and failure rate are derived.
风振计算应按随机振动理论进行，结构的自振周期应按结构动力学计算。
Wind is it it calculates to be should according to shake theory go on, shake cycle should calculate according to structure dynamics structure at random to shake.
风振计算应按随机振动理论进行，结构的自振周期应按结构动力学计算。
Wind is it it calculates to be should according to shake theory go on, shake cycle should calculate according to structure dynamics structure at random to shake.
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