Seismic Bracing Development for the Moore 3 Diamond Turning Machine at Lawrence Livermore National Laboratory

Technical Report · Sat Jun 01 04:00:00 EDT 2024

DOI:https://doi.org/10.2172/2370174· OSTI ID:2370174

Siantar, Maxwell Gordon ^[1]

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1. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); California Polytechnic State Univ. (CalPoly), San Luis Obispo, CA (United States)

To allow for on-site Potassium Dihydrogen Phosphate (KDP) crystal finishing capabilities, Lawrence Livermore National Laboratory (LLNL) acquired the Moore 3 diamond turning machine. Equipment such as the Moore 3 is required by LLNL to have adequate seismic bracing before permanent installation to reduce the risk of personnel injury or machine damage during an earthquake. The purpose of this project was to design a bracket that can withstand seismic forces induced by the machine without hindering function. To develop a solution, background research—including stakeholder identification, stakeholder interviews, and a literature survey—was conducted. Based on LLNL site and stakeholder requirements, several approaches were developed for bracing the Moore 3. Ideations were evaluated based on a weighted decision matrix and a final design strategy was selected. This design was an L-shaped weldment that featured provisions for four HILTI concrete anchors, three triangular gussets, and a steel construction.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC52-07NA27344
• OSTI ID: 2370174
• Report Number(s): LLNL--TR-864564; 1098339
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
diamond turning
lasers
optics and optical instruments
potassium dihydrogen phosphate (KDP)
seismic load
static equivalent
vibration isolation