期刊论文、会议论文

Zhang, Chunliang

英文

Advanced Materials Research

1022-6680

2011

328-330

2156-2162

2011 International Conference on Mechatronics and Materials Processing, ICMMP 2011

Advanced Materials Research

18 November 2011 through 20 November 2011

Guangzhou, PEOPLES R CHINA

[Li, Sen;Zhang, Chunliang] Guangzhou Univ, Sch Mech & Elect Engn, Guangzhou 510006, Guangdong, Peoples R China.^[Li, Jian] Huazhong Univ Sci & Technol, Sch Mech Sci & Engn, Wuhan 430074, Peoples R China.^[Liu, Jia] Univ South China, Sch Mech Engn, Hengyang 421001, Peoples R China.

Guangzhou Univ, Univ New S Wales, Zhejiang Univ, Xian Jiaotong Univ

Zhang, LC Zhang, CL Chen, Z

KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND

TRANS TECH PUBLICATIONS LTD

9783037852385

10.4028/www.scientific.net/AMR.328-330.2156

Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [2008AA04Z407]; Scientific Research Foundation for the Returned Overseas Chinese Scholars by the State Education Ministry of China; High Level Personnel Project of Guangdong Colleges

本校为其他机构

Stiction is a common problem in spring-diaphragm type valves, which are widely used in the process industry. A non-invasive method for detecting and quantifying stiction in control valve has been presented in this paper. Although there have been many attempts to understand and detect stiction in control valves, none of the current methods can simultaneously detect and quantify stiction. The method first detects nonlinearity in a control loop by the use of the sensitivity of the normalized bispectrum or bicoherence to the nonlinear interactions that may be present in the control error signal.If...