GB/T 33208-2025Equipment structure health monitoring — Practice for the turbine blades on-line vibration monitoring based on tip-timing theory (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

This document replaces GB/T 33208-2016 "Online monitoring method for blades based on blade tip timing principle for non-destructive testing" and GB/T 33208- Compared with 2016, in addition to structural adjustments and editorial changes, the main technical changes are as follows.

a) Personnel requirements have been deleted (see Chapter 3 of the 2016 edition);

b) Added terms and definitions (see Chapter 3);

c) Deleted the preparation before monitoring (see Chapter 4 of the 2016 edition);

d) added an overview of the methodology (see Chapter 4);

e) The system composition has been changed (see 5.1, 6.1 of the 2016 edition);

f) The basic parameters of the sensor have been changed (see 5.2, 6.2 of the 2016 edition);

g) Added data analysis methods (see 5.4.2);

h) Added fault diagnosis method (see 5.4.3);

i) Added monitoring implementation process (see Chapter 6).

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was proposed and coordinated by the National Equipment Structural Health Monitoring Standardization Working Group (SAC/SWG22).

This document was drafted by: China Special Equipment Testing and Research Institute, Tianjin University, Nanjing University of Aeronautics and Astronautics, Anhui University of Technology, Beijing Institute of Technology University of Science and Technology, Shenzhen Jiede Intelligent System Co., Ltd., Jilin City Special Equipment Inspection Center (Jilin City Special Equipment Accident Investigation Service Center Center), Jiangsu Special Equipment Safety Supervision and Inspection Institute.

The main drafters of this document are: Ding Keqin, Duan Fajie, Li Na, Fu Xiao, Zheng Jinde, Ye Dechao, Yue Lin, Zhao Liqiang, Ning Weidong, Wang Zhijie, Zhang Lijing, Xin Wei, Zhao Na, Liu Tao, Wang Delin, and Cao Honghui.

This document was first published in 2016 and this is the first revision.

Equipment structural health monitoring based on blade tip timing principle On-line monitoring method for turbine blade vibration

1 Scope

This paper describes an online monitoring method for turbine blade vibration based on the blade tip timing principle, including an overview of the method, a monitoring system, and monitoring implementation.

Implementation process, monitoring system installation, monitoring system maintenance, and monitoring reports.

This document is applicable to large turbine machinery blades such as aircraft engines, gas turbines, steam turbines, fans, water turbines, compressors, flue gas turbines, etc.

Online monitoring of vibration.

2 Normative references

GB/T 19873.1

GB/T 19873.2

3 Terms and definitions

The terms and definitions defined in GB/T 19873.1 and the following apply to this document.