Rigid Mode Correction and Program Development for Spectrum Analysis

WANG Yan-ping; ZHANG Shuang-wang; GONG Zhen-bang; WANG Chun-ming; LIU Shu-bin; TIAN Jin-mei

Mar. 2025

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WANG Yan-ping, ZHANG Shuang-wang, GONG Zhen-bang, WANG Chun-ming, LIU Shu-bin, TIAN Jin-mei. Rigid Mode Correction and Program Development for Spectrum Analysis[J]. Nuclear Power Engineering, 2011, 32(S1): 65-68.

Citation:

WANG Yan-ping, ZHANG Shuang-wang, GONG Zhen-bang, WANG Chun-ming, LIU Shu-bin, TIAN Jin-mei. Rigid Mode Correction and Program Development for Spectrum Analysis[J]. Nuclear Power Engineering, 2011, 32(S1): 65-68.

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Rigid Mode Correction and Program Development for Spectrum Analysis

Process and Layout Design Division, China Nuclear Power Engineering Co. Ltd., Beijing, 100840, China

Received Date: 2011-01-24
Rev Recd Date: 2011-02-28

Available Online: 2025-03-08

Abstract

Abstract

If the sum of equivalent masses of natural Frequencies below the cut-off frequency is lower than 90 % of the total mass,the rigid mode response needs to be taken into account.This paper studies the rigid mode correction theory.The second develop program to ANSYS10.0 is created by APDL and UIDL following this theory.The results from the verification example show the correction of the program.
- Spectrum analysis,
- Rigid mode correction,
- APDL,
- UIDL