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Case Studies |
Vibration Testing of a Bell Tower
The
measurements and
analysis presented here are
performed by Dr. Reto
Cantieni,
RCI Dynamics,
Switzerland.
This
case consider
measurements conducted
on the bell tower of the
St. Peter & Paul church
in Zürich, Switzerland.
The measurements were
conducted using a LMS
Pimento data acquisition
system. The sensors were
PCB 93B31 accelerometers.
Modal analysis was
prepared with ARTeMIS
Testor Light and
conducted with ARTeMIS
Extractor Pro.
Below
you can download an AVI
movie animating the mode
showed above. The mode
has been estimated with
the Enhanced Frequency
Domain Decomposition
estimator available in
the ARTeMIS Extractor
Handy and ARTeMIS
Extractor Pro versions.
Download AVI movie
Hint: To get the
maximum out of the
downloaded AVI movie,
please set your AVI
movie player to "Repeat
Forever".
Related Information
The bell tower test is
described in more
details in the following
paper:
R. Cantieni.
Experimental
Methods used in System Identification of
Civil Engineering Structures. 2nd. Workshop: Problemi di vibrazioni
nelle strutture civili e nelle
costruzioni meccaniche, Perugia, 10-11
Giugno 2004.
Pictures from the Test
The St. Peter & Paul
church in downtown
Zürich, Switzerland:
Mounting of two PCB
accelerometers next to
the church clock:
Mounting reference
accelerometers on the
top corner of the bell
tower:
Mounting of
accelerometers for 2D
measurement inside the
tower:
The measurement control
station located just
beneath the church bell:
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