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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1994, Vol. 15 ›› Issue (9): 1091-1094.
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Dai Hua
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Abstract: he problem of stiffness matrix correction using test data is discussed in this pa-per Based on the characteristic equation,the symmetry and positive semidefiniteness of stiff-ness matrix,the existence and uniqueness of solution to the problem is studied by means of tbe theory and method of the algebraic inverse eigenvalue problems. Anew method of stiffness ma-trix correction is preesented.The stiffness matrix corrected by the method not only satisfies the characteristic equation,but also is the unique symmetric positive semidefinite matrix.
Key words: structural model, dynamic experiment, inverse problem
CLC Number:
V216.2.V215.3
Dai Hua. STIFFNESS MATRIX CORRECTIONUSING TEST DATA[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1994, 15(9): 1091-1094.
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