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