nees and the nees geotechnical centrifuge at davis dan wilson manager, center for geotechnical...
TRANSCRIPT
NEES and the NEES Geotechnical Centrifuge at Davis
Dan WilsonManager, Center for Geotechnical Modeling
NEES Equipment Sites
SiteCouncil
NEES Collaboratory
NE
ES
gri
d
System Integrator
EarthquakeResearchers
Educators &Students
ProfessionalEngineers
OtherPractitioners
NEES Consortium
Site B
Site C
Site A
Othersite 1
Othersite 2
NEES Consortium
Development
Sim
ula
tion
/Exp
erim
enta
l Fac
ilitie
s
Slide courtesy of
Bob Rietherman
7.1 x 18.8 mm
3.6 x 6.4 x 9.1 mm
5.6 x 8.9 mm
25 x 25 x 7.6 mm
8.9 x 8.9 x 2.5 mm
ICP
•Miniature
•Efficient package
•Mature design
•High frequency / wide bandwidth
MEMS
•Cheap sensors
•Cheap conditioning
•Micro?
as low as 10 mmwant DC response, too
Modular Design – dense packets of sensors eases installation, management.Miniature sensing element
3.8 cm
2.5
cm
5.6 cm
Sensor ManagerCommunication M
odule
PVC housing•glued or clamped•dimples for routing wires to sensors
Sensor Manager, Communication Module, and batteries shown in single waterproof housing
Good performance / sizeBut over budget
Design as of early 2002
Proposal 9/21/02
Incorporate new open-source OTS wireless modules to reduce development costs
fiducial markers on container (only at 1g)
fiducial markers on sand ground (only at 1g ??)
transducers
Building a Digital Model(Metadata)
Thanks for your attention
Acknowledgement:
NSF-CMS 0086566 from the
George E. Brown,Jr. Network for Earthquake Engineering Simulation program of NSF, and matching funds from UCD.