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RISS 인기검색어
- 검색키워드
- 저자 : Peter Breuer (검색결과 2 건)
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Monitoring of tall slender structures by GPS measurements
Tadeusz Chmielewski,Peter Breuer,Piotr Górski,Eduard Konopka 한국풍공학회 2009 Wind and Structures, An International Journal (WAS Vol.12 No.5
A method is applied for the estimation of structural damage of tall slender structures using natural frequency and displacements measurements by GPS. The relationship between the variation in the global stiffness matrix (or in the stiffness of each finite element) and the change in the natural frequencies of the structure is given. In engineering practice the number of frequencies which can be derived by GPS measurement of longperiod structures will be equal to one, two or three first natural frequencies. This allows us in initial studies to detect damage with frequency changes based on forward methods in which the measured frequencies are compared with the predicted analytical data. This idea, of health monitoring from possible changes to natural frequencies, or from a statement of excessive displacements is applied to the Stuttgart TV Tower.
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Monitoring of tall slender structures by GPS measurements
Chmielewski, Tadeusz,Breuer, Peter,Gorski, Piotr,Konopka, Eduard Techno-Press 2009 Wind and Structures, An International Journal (WAS Vol.12 No.5
A method is applied for the estimation of structural damage of tall slender structures using natural frequency and displacements measurements by GPS. The relationship between the variation in the global stiffness matrix (or in the stiffness of each finite element) and the change in the natural frequencies of the structure is given. In engineering practice the number of frequencies which can be derived by GPS measurement of long-period structures will be equal to one, two or three first natural frequencies. This allows us in initial studies to detect damage with frequency changes based on forward methods in which the measured frequencies are compared with the predicted analytical data. This idea, of health monitoring from possible changes to natural frequencies, or from a statement of excessive displacements is applied to the Stuttgart TV Tower.
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