scholarly journals Creation of an integrated system for monitoring the technical condition of high-quality helicopter units based on fiber-optic technology

2021 ◽  
pp. 8-21
Author(s):  
Amer Mohammad AL-DARABSE ◽  
Elena Vladimirovna MARKOVA ◽  
Estabrak Qasim ISMAIL
Keyword(s):  
Fiber Optic ◽  
Technical Condition ◽  
Integrated System ◽  
High Quality ◽  
Fiber Optic Technology

scholarly journals Creation of an Integrated System for Monitoring the Technical Condition of High-Quality Helicopter Units based on Fiber-Optic Technology

2018 ◽  
Vol 7 (4.38) ◽  
pp. 1162
Author(s):  
Nikolay L. Lvov ◽  
Stanislav S. Khabarov ◽  
Mikhail Yu. Gavrikov
Keyword(s):  
Fiber Optic ◽  
Technical Condition ◽  
Integrated System ◽  
Rotor Blades ◽  
Physical Parameters ◽  
Integrated Monitoring ◽  
Helicopter Rotor Blades ◽  
Fundamental Possibility ◽  
Fiber Optic Technology ◽  
Design And Manufacture

This article discusses the problems of creating an integrated system for monitoring the technical condition of highly responsible helicopter units, and analyzed options for its creation. Fiber-optical technology is considered as a technology, on the basis of which it is possible to build an integrated system, since this technology makes it possible to measure various physical parameters such as vibration, deformation, temperature, acoustic emission and other parameters, and due to the miniature dimensions of the fiber-optic light guide. It can be built into the PCM design, which is a relevant factor due to the growth use of PCM in the design and manufacture of helicopters. The results of bench and flight tests of helicopter pilot and rotor blades with fasteners using fiber optic deformation sensors based on a Bragg fiber grille demonstrate the fundamental possibility of creating a system for monitoring the technical condition of helicopter rotors using fiber optic sensors .Also, there are examples of creating other elements of an integrated monitoring system based on the use of fiber-optic technology, such as a system for signaling the breakdown of air flow and flutter on the helicopter rotor blades, a system for measuring the weight and alignment of helicopter cargo and a system for monitoring the technical condition of the airframe.  

Fiber Optic Technology for Reservoir Surveillance

2011 ◽  
Author(s):  
Johannes V. Vianney Koelman ◽  
Jorge L. Lopez ◽  
Hans Potters
Keyword(s):  
Fiber Optic ◽  
Fiber Optic Technology

Application of fiber-optic measuring technology and phase-chronometric method for control and monitoring of technical condition of aircraft structures

2021 ◽  
pp. 49-56
Author(s):  
Stanislav S. Khabarov ◽  
Alexander S. Komshin
Keyword(s):  
Fatigue Life ◽  
Fiber Optic ◽  
Technical Condition ◽  
Point Of View ◽  
Flight Performance ◽  
Diagnostic Systems ◽  
Safe Operation ◽  
Excess Reserves ◽  
The Creation ◽  
Original Approach

Problems of ensuring the safe operation of an aircraft from the point of view of the fatigue life of its structure are considered. The relevance of the creation and implementation of diagnostic systems for monitoring the technical condition of structures of complex technical objects is shown on the example of a helicopter. An original approach to the creation and implementation of complex systems for diagnostics and monitoring of the technical condition of complex technical objects is presented, combining fiber-optic measuring technology and phase-chronometric method. It is shown that the use of monitoring and diagnostic systems ensures the transition to operation based on the actual technical condition. The proposed approach makes it possible to increase the time between overhaul intervals and reduce excess reserves in terms of the reliability factors of structures, which increases the flight performance of aircraft.

scholarly journals High-quality hybrid TDM/DWDM-based fiber optic sensor array with extremely low crosstalk based on wavelength-cross-combination method

2017 ◽  
Vol 25 (23) ◽  
pp. 28870 ◽  
Author(s):  
Zhongjie Ren ◽  
Ke Cui ◽  
Jianxin Li ◽  
Rihong Zhu ◽  
Qing He ◽  
...  
Keyword(s):  
Sensor Array ◽  
Fiber Optic ◽  
Fiber Optic Sensor ◽  
Combination Method ◽  
Cross Combination ◽  
High Quality ◽  
Optic Sensor

Fiber-optic distributed acoustic sensing of microseismicity, strain and temperature during hydraulic fracturing

Geophysics ◽  
2019 ◽  
Vol 84 (1) ◽  
pp. D11-D23 ◽  
Author(s):  
Martin Karrenbach ◽  
Steve Cole ◽  
Andrew Ridge ◽  
Kevin Boone ◽  
Dan Kahn ◽  
...  
Keyword(s):  
Hydraulic Fracturing ◽  
Hydraulic Fracture ◽  
Fiber Optic ◽  
Data Set ◽  
New Approach ◽  
Acoustic Sensing ◽  
Fiber Optic Technology ◽  
Physical Effects ◽  
Distributed Acoustic Sensing ◽  
Temperature Strain

Hydraulic fracturing operations in unconventional reservoirs are typically monitored using geophones located either at the surface or in the adjacent wellbores. A new approach to record hydraulic stimulations uses fiber-optic distributed acoustic sensing (DAS). A fiber-optic cable was installed in a treatment well in the Meramec formation to monitor the hydraulic fracture stimulation of an unconventional reservoir. A variety of physical effects, such as temperature, strain, and microseismicity are measured and correlated with the treatment program during hydraulic fracturing of the well containing the fiber and also an adjacent well. The analysis of this DAS data set demonstrates that current fiber-optic technology provides enough sensitivity to detect a considerable number of microseismic events and that these events can be integrated with temperature and strain measurements for comprehensive hydraulic fracture monitoring.

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