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首页> 外文期刊>Journal of Mechanical Science and Technology >Assessment of floor response spectrum by parametric error estimation and its application to a spring-mounted reactor vessel assembly
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Assessment of floor response spectrum by parametric error estimation and its application to a spring-mounted reactor vessel assembly

机译：通过参数误差估计对地面响应谱的评估及其在弹簧式反应堆容器中的应用

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For large facilities having several floors or containers, floor response spectra, FRS, other than ground response spectra need to be developed. However, FRS can have error especially when components are not small in their masses. In this paper, error is estimated in order to specify applicability of the FRS by deriving and comparing with analytic results for two degrees of freedom system. An identity regarding modal vectors and participation factors in the modal method is used to measure the FRS error. It is found that FRS is sufficiently accurate if the mass of a component is one hundredth or less than that of the floor. On the contrary, it is shown that fixed frequency of a component does not affect the FRS accuracy considerably. A compact power plant system consists of two main assemblies with spring mounts is applied as an example for the derivation of the FRS and several aspects associated with its modeling and calculation are discussed.
机译：对于具有多个楼层或容器的大型设施，需要开发地面响应光谱以外的地面响应光谱，FRS。但是，FRS可能会出错，尤其是当组件的质量不小的时候。本文通过推导误差并将其与两个自由度系统的分析结果进行比较，来估计误差，以指定FRS的适用性。使用模态方法中与模态向量和参与因子有关的标识来测量FRS误差。可以发现，如果组件的质量小于地板的质量的一百分之一，FRS足够准确。相反，表明组件的固定频率不会显着影响FRS精度。以FRS的推导为例，该紧凑型电厂系统由两个带有弹簧支架的主要组件组成，并以此为基础推导FRS，并讨论了与FRS建模和计算相关的几个方面。

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