水力发电Issue(2)：17-19,3.
混凝土重力坝振动参数识别研究
Study on the discernment of concrete gravity dam vibration parameters
摘要
Abstract
On the basis of optimum control solution theory, the dynamic parameter discernment model of concrete gravity dam under the priori restraint conditions has been set up and a restraint variable-dimension method for finding the solutions of such model has been put forward. Taking a dam without water as example, under the condition of incomplete vibration observation data, the parameter discernment method for dynamic material has been studied. The results showed that the restraint variable-dimension method not only could have high calculation accuracy and good numeric stability but also have certain data noise control capability. It can reliably discern the dynamic elastic modulus of dam body concrete and foundation rock. Therefore it provides a new effective way for discerning elastic parameters of concrete dam body and rocky foundation.关键词
振动参数/参数识别/混凝土重力坝/约束变尺度方法分类
建筑与水利引用本文复制引用
王登刚,刘迎曦,李守巨..混凝土重力坝振动参数识别研究[J].水力发电,2001,(2):17-19,3.
