UC Davis NEES Geotechnical Centrifuge Test Authorization*
Project / Experiment ID
Lead Researcher
Date
Operator
Centrifuge Operator - list experiment-specific items weighing more than 0.5 lb if they are not contained within the
model and not separately listed in the Mounted Equipment Inventory:
____________________________________________________________________________________
AUTHORIZATION TO SPIN IS PASSED TO AUTHORIZED CENTRIFUGE OPERATOR UPON COMPLETION
The experiment and any new equipment are mounted on the centrifuge and ready for inspection. The maintenance log
of the centrifuge facility is current. I have compared the content of the mounted equipment inventory to the current
configuration of the centrifuge to the best of my knowledge. The centrifuge is balanced.
(Authorized Centrifuge Operator, date)
I have inspected the installation of the experiment on the centrifuge. I have reviewed the maintenance schedule and
maintenance log and they are current. I have compared the content of the mounted equipment inventory to the current
configuration of the centrifuge. I have checked the appropriate stresses for any non-inventory items listed above.
This test is authorized to a maximum of _____ g’s
(Authorized Engineer, date)
I have personally inspected the mounted equipment inventory and confirmed that necessary stress calculations have
been completed by one engineer, reviewed by an authorized engineer and they are properly filed for future reference.
(Authorized Facility Manager, date)
It is the policy of this facility that stress calculations be performed and checked for
 Any critical part
 Any part weighing more than 0.5 lb if there is any chance it could fall outside the centrifuge or cause significant
damage to the experiment.
Maintenance items include but are not limited to (consult the maintenance schedules for details):
 DC motor, main gearbox, drive couplings, centrifuge bearings, bucket pivot,
 SCR, transformer, sliprings
 Filters, Uninterruptable power supplies, rotary journal
 Software
Authorized Facility Managers (FM)**
Ross Boulanger, Bruce Kutter, Dan Wilson
Authorized Engineers (AE)**
Ross Boulanger, Bruce Kutter, Dan Wilson, Lars Pederson
Authorized Centrifuge Operators (CO)**
Ray Gerhard, Chad Justice, Anatoliy Ganchenko, Lars Pedersen, Dan Wilson
* This signed authorization is valid until the current model is removed from the arm
or until the model configuration is changed significantly
** - Authorization made at the discretion of the Facility Director
Ver. 8.26.2010