Structural model generation by means of a stationary vibration test

摘要

The invention relates to methods for adapting a mass matrix M ₁ and a spring matrix K _{1 of} a computer structure model (10), wherein M ₁ and K _{1 are used} for modeling mechanical properties of a physical structure (20). The method has the following steps: Generating (S1) a vibration excitation of the physical structure (20), Detecting (S2) an oscillation response A _{S of} the physical structure (20) to the vibration excitation, Determining (S3) a mass matrix M ₂ for the air moving along with the vibrational excitation with the physical structure (20), Determining (S4) a value W _{R of} a dynamic property of the computer structure model (10) using a mass matrix M ₃ and the spring matrix K ₁ in the computer structure model (10), where M _{3 is} generated from M ₁ and M ₂ , Comparing (S5) a value W _{S of} the dynamic property of the physical structure (20) determined by the oscillation response A _S with the value W _R , - Matching (S6) of M ₁ and K ₁ in the computer structure model (10) to M ₁ * and K ₁ * depending on the difference between W _S and W _R , and - Providing (S7) the determined parameters M ₁ * and K ₁ *.