Vibration-Based Measurement of Activated Cylinders in Reciprocating Machines

被引：0

作者：

Krause, Thomas C. ^{[1
]}

Quinn, Devin W. ^{[2
]}

Huchel, Lukasz ^{[3
]}

Leeb, Steven B. ^{[1
]}

机构：

[1] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA

[2] United States Coast Guard, Alameda, CA USA

[3] Enphase Energy, Austin, TX USA

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2023年 / 72卷

关键词：

Valves; Vibrations; Refrigeration; Discharges (electric); Coherence; Solid modeling; Signal processing; Cyclostationarity; mean envelope spectrum (MES); mechanical systems; reciprocating machines; signal processing; vibration analysis; ENGINES; CYCLOSTATIONARITY; DIAGNOSIS;

D O I：

10.1109/TIM.2022.3218038

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Vibration signals from rotating and reciprocating machines provide insights into machine health and operating parameters. Reciprocating machines often feature cylinder deactivation systems for increased efficiency. This article presents a vibration-based method for the detection of activated cylinders in reciprocating machines. Simulated compressor vibration signals demonstrate the effect of cylinder conditions on spectral-coherence and mean-envelope-spectrum (MES) estimates. Physical parameters of the mechanical system and the results of the simulations advise the proposed method. With an appropriately chosen region of interest (ROI), the MES-based indicator (MESbI) correctly identified the number of activated cylinders of a four-cylinder reciprocating refrigeration compressor in both field and laboratory test setups. A discussion section addresses measurement uncertainty and calibration, and provides an example application.

引用

页数：15

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