Document: NUREG-0800
Document ID: 6b7eddf4-f7ce-4821-9f11-e37070221e57
Document Type: srp
Title: DYNAMIC TESTING AND ANALYSIS OF SYSTEMS, STRUCTURES, AND
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1613/ML16133A418.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.2
CFR Part: 
CFR Title: 

Content:
ans for benchmarking analytic results should be reviewed. In particular, methods for determining conservative bias errors and uncertainties should be assessed. It is preferable for applicants to apply end-to-end benchmarking procedures that encompass all individual bias errors and uncertainties. This is best accomplished with measurements of SSC operational vibration, surface pressures, and structural strains. In addition, test results from plants of similar characteristics may be used to verify the mathematical models for the loading condition of LOCAs in combination with the SSE by comparing such dynamic characteristics as the natural frequencies. The staff review addresses the methods for comparison of test and analytical results and for verification and validation of the analytical models. However, any differences between the plant under review and previous similar plants leading to the appearance of flow-excited acoustic or structural resonances should be reviewed in detail. 7. Inspections, Tests, Analyses, and Acceptance Criteria (ITAAC). For design certification (DC) and combined license (COL) reviews, the staff reviews the applicant's proposed ITAAC associated with SSCs related to this SRP section in accordance with SRP 3.9.2-12 Revision 4 – March 2017 Section 14.3, "Inspections, Tests, Analyses, and Acceptance Criteria." The staff reviews the ITAAC to verify that all SSCs in this area of review are identified and addressed as appropriate in accordance with SRP Section 14.3. Examples of ITAAC related to FIV of reactor internals specified for the Economic Simplified Boiling Water Reactor (ESBWR) DC and AP1000 DC are provided in Appendix A and Appendix B, respectively, to this SRP section. Similar ITAAC, or a subset, may be appropriate for a given application depending on the details of the reactor internals FIV review. 8. COL Action Items and Certification Requirements and Restrictions. For a DC application, the staff reviewer verifies that the DC documents