Browse Items (40 total)

  • Tags: Vibrations

This paper presents an exploratory study on the detection of natural gas water content by Raman spectroscopy. The method uses long range optical cell to enhance gas Raman signal and builds Raman gas detection platform, by which achieves the Raman…

Pipelines are one of the most common systems for storing and transporting petroleum products, both liquid and gaseous. Despite their durable structures, leakages can occur for many reasons, causing environmental disasters, energy waste, and, in some…

Wireless sensor networks (WSN) provide a powerful solution to the task of monitoring the operational conditions of buried and non-buried pipes of different lengths and materials. Due to the limited energy stored in the sensor nodes, the use of…

In this paper, a wavelet application which aims to monitor a domestic natural gas boiler as a mechanical system is presented. In this predictive maintenance application, discrete-time wavelet decomposition is basically used to analyze the recorded…

Recently the world has seen an explosion of available data, gathered from sensors, experiments and direct measurements. The engineering world is shifting from model-centred simulations to the exploitation of large datasets for insights into machine…

Due to many factors such as the construction environment, the existing tunnels still use drilling and blasting methods. The stress wave generated during the tunnel blasting process will cause some disturbance to the surrounding buildings, and…

The Paper is devoted to author's complex technology for monitoring and vibration protection of industrial equipment that consists of method of diagnostics via remote strain gauge analysis and vibration isolation system with isolators with quasi-zero…

The paper is devoted to a new approach for condition monitoring of industrial equipment. Future high-quality methods of condition monitoring and defect locating have to be automatic, remote, apply universal methods and sensors, low cost and be…

The paper is devoted to the application of real-time strain gauge analysis for the diagnostics of bearings of industrial machines. The bearings are important and often damaged part of different rotor equipment. But the diagnostics of bearings is…

A new method of condition monitoring is proposed is this Paper. It is based on analysis of geometrical location of excitation sources, i.e. a defect. This method takes into account that shock impulses from a defect have a certain wave propagation…

The paper reviews application of real-time strain gauge analysis for locating defects via pulse control. Various diagnostics and defect detection methods used for condition monitoring have advantages and disadvantages. In this study, we suggest pulse…

The CO2 emission and greenhouse gasses due to the energy sources that are being used today such as coal, oil, and natural gases being pumped into the air is causing the rise of sea levels, increasing the temperature and extreme weathering conditions.…

The complex structure and changeable working conditions of reciprocating compressor lead to the strong noise interference of collected monitoring data, the poor universality of diagnosis model and so on. A fault diagnosis method of reciprocating…

A high-speed train can be regarded as a moving seismic source when it travels along a railway. Seismic waves from such sources have strong energy and can be used for near-surface characterization, safety monitoring of high-speed railways, and…

Pipelines are one of the most common systems for storing and transporting petroleum products, both liquid and gaseous. Despite their durable structures, leakages can occur for many reasons, causing environmental disasters, energy waste, and, in some…

Due to many factors such as the construction environment, the existing tunnels still use drilling and blasting methods. The stress wave generated during the tunnel blasting process will cause some disturbance to the surrounding buildings, and…

The paper reviews application of real-time strain gauge analysis for locating defects via pulse control. Various diagnostics and defect detection methods used for condition monitoring have advantages and disadvantages. In this study, we suggest pulse…

The machine learning revolution is starting to be implemented in machinery maintenance and has become inevitable in highly industrialized and integrated plants. These measures save time, money and effort through new and dynamic condition-monitoring…

Wireless sensor networks have a vast amount of applications including environmental monitoring, military, ecology, agriculture, inventory control, robotics and health care. This paper focuses on the area of monitoring and protection of oil and gas…

High-speed induction motors are widely used in conjunction with frequency inverters to operate in different speeds and operating points. This solution is commonly found in the oil and gas industry and more particularly on liquid pipelines since it…

The leakage of pipeline would cause serious problems, especially when the pipe conveying petroleum or other toxic substance. For the ocean mining system, the complex environment would increase the risk of the fracture. Once the leakage occurs, the…

This paper researches on real-time noise reduction and segmentation method of soil vibration signals collected by the fiber optic laid in the vicinity of oil pipeline. First, we extract valid fragments of signals using the self-correlation…

According to the mechanical and deformation characteristics of inverted triangular truss under seismic loads, the calculation model of truss dynamic response is established and the corresponding calculation equations are derived. Making use of finite…

Directly coupled converter-fed electric motors for oil & gas applications, especially for pipeline and process compressors, have become more common in recent years due to increased efficiency and precise process control. The pipeline industry is…

Wireless sensor networks (WSN) provide a powerful solution to the task of monitoring the operational conditions of buried and non-buried pipes of different lengths and materials. Due to the limited energy stored in the sensor nodes, the use of…

The vibrancies of floating steel-pipelines on sea was analyzed by the inherent vibrancies character analysis method

Pipeline health is crucial to the continuous and uninterrupted flow of oil, gas, or any liquid. Pipelines in the oil industry are critical, where any damage or loss in their integrity

The reciprocating gas compressor is the core equipment used to gather and transport offshore oil and gas. The BOP-X-2502A/B/C type compressor groups, which are marine large-scaled high-pressure reciprocating gas compressor groups on BZ28-2SBOP…

With the rapid development of the national economy, long distance oil/gas pipeline transportation system plays a more and more important role in people's daily life. However, the third party damages such as improper construction, illegal drilling and…

Now pipeline transportation has become the most important mode of transportation of oil and natural gas. But the safety accidents frequently occurred have more and more attracted people's attention. A kind of pipeline safety pre-warning system by…

The current status of the optical fiber vibration sensing applied in the West-East Gas Pipeline project is introduced. A fast filter and a machine learning algorithm is used to distinguish the causes of vibration.

In this paper, we introduce a novel method for reconstructing roller bearings vibration signals. As well as the sparse reconstruction algorithm, our approach is based on the Lasso via the alternate direction multiplier method (ADMM) and optimized by…

Electric large drives have advantages in operating liquid natural gas plants LNG, as they can be operated very flexibly and provide a zero CO2 footprint. Being a rather new application, the reliability of the drive is looked upon critically.…

Vortex flowmeter is installed in piping to measure the fluid flow rate. The piping is easily disturbed by strong transient impact in the application fields, such as other components impacting on the pipeline, manual knocking on the pipe, and opening…

Recently the world has seen an explosion of available data, gathered from sensors, experiments and direct measurements. The engineering world is shifting from model-centred simulations to the exploitation of large datasets for insights into machine…

Real-time monitoring of wellbore fluids is of crucial importance for oil recovery. During various operations such as drilling, production, stimulation, and intervention, the characteristics of the fluids being produced or injected into the well needs…

The Bouc-Wen model is adopted to simulate the non linear hysteretic characteristics of force-displacement relationship for sliding bearing. The seismic response characteristics of large scale sliding base-isolated storage tank at different sites are…
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