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Dynamic Analysis of Modified Structural Systems
(1986-06)
A set of methods is developed to determine the changes in frequencies and mode shapes of a structure resulting from modifications of the structure. These modifications can involve an increase in the number of degrees of ...
Dynamic Properties of Modified Systems
(1985-08-19)
A set of methods is presented for convenient calculation of the changes in the frequency and shape of any mode of undamped vibration of a structure due to changes in the parameters of the system. Previously reported methods ...