1. NEES and the NEES Geotechnical Centrifuge at Davis Dan Wilson Manager, Center for Geotechnical Modeling

2. NEES Equipment Sites

7. Site Council NEES Collaboratory NEESgrid System Integrator Earthquake Researchers Educators & Students Professional Engineers Other Practitioners NEES Consortium Site B Site C Site A Other site 1 Other site 2 NEES Consortium Development Simulation/Experimental Facilities Slide courtesy of Bob Rietherman

12. 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 mm want DC response, too

13. Modular Design – dense packets of sensors eases installation, management. Miniature sensing element

14. 3.8 cm 2.5 cm 5.6 cm Sensor Manager Communication Module PVC housing glued or clamped dimples for routing wires to sensors Sensor Manager, Communication Module, and batteries shown in single waterproof housing Good performance / size But over budget Design as of early 2002

15. Proposal 9/21/02 Incorporate new open-source OTS wireless modules to reduce development costs

16. Building a Digital Model (Metadata)

17. 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.