Analysis and optimization research on latch life of control rod drive mechanism based on approximate model
- 1. Sichuan University, Chengdu (China)
- 2. Nuclear Power Institute of China, Chengdu (China)
Description
The Control Rod Drive Mechanism (CRDM) is an essential part of the reactor, which realizes the start-stop and power adjustment of the reactor by lifting and lowering the control rod assembly. As a moving part in CRDM, the latch directly contacts with the control rod assembly, and the life of latch is closely related to the service life of the reactor. In this paper, the relationship between the life of the latch and the step stress, friction stress, and impact stress in the process of movement is analyzed, and the optimization methodology and process of latch life based on the approximate model are proposed. The design variables that affect the life of the latch are studied through the experimental design, and the optimization objective of design variables based on the latch life is established. Based on this, an approximate model of the life of the latch is built, and the multi-objective optimization of the life of the latch is optimized through the NSGA-Ⅱ algorithm
Additional details
Publishing Information
- Journal Title
- Nuclear Engineering and Technology
- Journal Volume
- 53
- Journal Issue
- 12
- Series
- 37 refs, 8 figs, 8 tabs
- Journal Page Range
- p. 4166-4178
- ISSN
- 1738-5733
INIS
- Country of Publication
- Korea, Republic of
- Country of Input or Organization
- Korea, Republic of
- INIS RN
- 53091582
- Subject category
- S22: GENERAL STUDIES OF NUCLEAR REACTORS;
- Descriptors DEI
- ALGORITHMS; APPROXIMATIONS; CONTROL ELEMENTS; CONTROL ROD DRIVES; DESIGN; OPTIMIZATION; SERVICE LIFE; STRESSES
- Descriptors DEC
- CALCULATION METHODS; LIFETIME; MATHEMATICAL LOGIC; REACTOR COMPONENTS