Results 21 to 30 of about 60,885 (195)

Innovation tools of economic development of the enterprise [PDF]

Экономика региона, 2012
Ways to generate new economic and financial benefits from the practice of rationalization work in the industrial enterprise are considered. An attempt to combine the practice rationalization work with the capabilities of tools and techniques of the ...
Fedor Pavlovich Zotov, Rim Mugomovich Muzipov   +1 more
doaj   +1 more source

Experimental and Numerical Investigation of Tip Leakage Flows in a Roots Blower

Designs, 2020
Computational fluid dynamics (CFD) can help in understanding the nature of leakage flow phenomena inside the rotary positive displacement machines (PDMs).
Shuaihui Sun, Gursharanjit Singh, Ahmed Kovacevic, Christoph Bruecker   +3 more
doaj   +1 more source

Comparative analysis of single-stage reciprocating compressor compressing different gases [PDF]

Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2019
Ensuring the efficient and reliable operation of reciprocating compressors is an important issue. The quality of the designed equipment is determined by the level of knowledge of the object and the perfection of methods for calculating its state.
A. A. Kotlov, A. B. Burakov
doaj   +1 more source

A New Dynamic Balance Framework Based on Blind Source Separation under Multiple Fault Conditions

Shock and Vibration, 2022
Accordingly, the mass unbalance of the rotors is usually the major cause of excessive vibration. The information extracted at the fundamental frequency is often employed to fix the unbalance issue.
Bo Lang, Xinyi Zhang, Jun Xiao, Shouhang Lu, Bing Li   +4 more
doaj   +1 more source

Study of Parallel Compressor System and Real-Time Simulation Based on Modular Dynamic System Greitzer Modeling

Machines, 2023
The compressor system is widely used in aerospace, chemical industry, and other industrial fields. Modeling a compressor system is of great significance to the study of hydrodynamics and surge characteristics.
Yang Su, Xuejiang Chen, Xiaoming Liu, Xin Wang, Xiaodong Li   +4 more
doaj   +1 more source

Application of domestic motor-driven centrifugal compressor unit in natural gas pipeline

You-qi chuyun, 2021
Motor-driven centrifugal compressor unit has been widely installed in the compressor station of natural gas pipeline in recent years. Motor-driven compressor unit industry of China starts late but develops fast.
Jianchen LIU, Pan LIU
doaj   +1 more source

Study on Characteristics of the Vibration and Noise of High-Power Scroll Compressor

Shock and Vibration, 2021
With the rapid development of a high-power scroll compressor (HSC), the dynamic performance of a scroll compressor has an important impact on the vibration and noise of the whole compressor.
Chuang Wang, Zhen Wang, Weiguo Yan, Hongkun Li, Chunli Yang   +4 more
doaj   +1 more source

Simulation of Coupled Heat Transfer in Rotor/Stator Cavity of the Microturbine [PDF]

Problems of the Regional Energetics, 2019
The work is d to improving methods for calculating the cooling system of a microturbine with a rotor on air bearings. When designing gas turbines, it is important to integrate gas-dynamic calculations with thermal finite-element calculations. In practice,
Volkov K.N., Levihin A.A., Volobuev I.A., Melnikova A.I.   +3 more
doaj   +1 more source

Gas Turbine Anomaly Detection under Time-Varying Operation Conditions Based on Spectra Alignment and Self-Adaptive Normalization

Sensors
Gas turbine vibration data may exhibit considerable differences under time-varying conditions, which poses challenges for neural network anomaly detection.
Dongyan Miao, Kun Feng, Yuan Xiao, Zhouzheng Li, Jinji Gao   +4 more
doaj   +1 more source

A State-Supervised Model and Novel Anomaly Index for Gas Turbines Blade Fault Detection Under Multi-Operating Conditions

IEEE Access
To meet industrial demands, gas turbines typically operate under multiple conditions, presenting unique challenges for fault diagnosis. This paper proposes a novel blade fault detection framework designed for such environments.
Yuan Xiao, Kun Feng, Dongyan Miao, Peng Zhang, Jiaxin Yang   +4 more
doaj   +1 more source