Patent ID: 11860066
Assignee: XI'AN JIAOTONG UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC G  F | IPC F  G

Claim 1:
2. The method according to claim 1, wherein preferably, in the first step (S1), first nm order modal parameters: a modal frequency fi, a displacement modal shape ϕi with the size being ndof×1 and a strain modal shape ψi with the size being 2ndof×1, of the three-dimensional finite element model are extracted by modal analysis, and a full-field strain modal shape matrix, ψ=[ψ1,ψ2, . . . ,ψnm] with the size being 2ndof×nm, of the rotor blade is constructed, wherein ndof represents for a modal number, i represents for a modal order, ndof represents for the number of degrees of freedom of the finite element model of the rotor blade, ndof=3nn, and nn represents for the number of nodes of the finite element model of the rotor blade.