scholarly journals Laboratory stand for development of method and system for continuous non-contact non-destructive testing of technical condition of insulation equipment

2021 ◽  
pp. 80-87
Author(s):  
T. G. Galieva ◽  
◽  
D. A. Ivanov ◽  
M. F. Sadykov ◽  
A. V. Golenishchev-Kutuzov ◽  
...  
Keyword(s):  
Residual Life ◽  
Electrical Equipment ◽  
Technical Condition ◽  
Contact Method ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Electromagnetic Methods ◽  
On Line ◽  
Offline Testing ◽  
Non Destructive

Measurement of partial discharges (PD) is a generally accepted method of diagnosing the insulation of electrical equipment worldwide. Today, the trend is to move from conventional offline testing to online monitoring to predict the service life of insulation. For testing and calibration of the developed new methods with the contact method, a laboratory stand has been developed in accordance with GOST R 55191-2012 (IEC 60270:2000). The article suggests the use of acoustic and electromagnetic methods for a system of continuous non-contact non-destructive testing of the technical condition of insulation equipment, which will allow monitoring insulation equipment online and predicting its residual life. On their basis, a system of «on-line» diagnostics of high-voltage insulators has been developed.

scholarly journals ENSAIO NÃO DESTRUTIVO (END) DE ANÁLISE DE VIBRAÇÕES APLICADO À MANUTENÇÃO PREDITIVA

2021 ◽  
Vol 9 (209) ◽  
pp. 1-16
Author(s):  
Marcela Esquincalha Luparelli
Keyword(s):  
Supply Chain ◽  
Vibration Analysis ◽  
Electrical Equipment ◽  
Scientific Production ◽  
Predictive Maintenance ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Non Destructive ◽  
Important Test ◽  
Reduction Of Costs

Predictive maintenance consists of monitoring data obtained from monitoring, with the main results of increasing the availability and reliability of equipment. Several non-destructive testing can be performed by this type of maintenance, with vibration analysis being one of the most common. The aim of this study is to evaluate the relevance of vibration analysis in the context of industrial predictive maintenance, as well as its applicability in mechanical and electrical equipment. The scientific production of this article was based on the experiments carried out by several authors in their areas of expertise, based on bibliographic source. It was concluded that the vibration analysis is an important test for the application of predictive maintenance, being able to be implemented in several equipments, besides being a method that contributes directly to the reduction of costs in the supply chain. Finally, it is necessary to take into account that there are points of attention that must be considered for a more adequate implementation of the method.

scholarly journals The monitoring of technical condition of cultural heritage objects

2019 ◽  
Vol 91 ◽  
pp. 05020
Author(s):  
Vera A. Akristiniy
Keyword(s):  
Cultural Heritage ◽  
Technical Condition ◽  
Integrated System ◽  
Non Destructive Testing ◽  
Testing Methods ◽  
Destructive Testing ◽  
Complex Monitoring ◽  
Cultural Heritage Objects ◽  
Non Destructive ◽  
Restoration Measures

The article deals with the conservation of cultural heritage objects due to their potential widespread deterioration. The suggestion to solve this problem is to create an integrated system for complex monitoring of cultural heritage objects technical condition. The stages of creating a realtime monitoring system with the choice of non-destructive testing methods, the necessary instruments, and tools, the result of which is the formation of a decision-making mechanism for a particular object, are proposed. Conducting monitoring by means of modeling allows predicting the behavior of structures and the building as a whole, taking into account the implementation of restoration measures.

Application and Research of Acoustic Emission Technology in the Tank Security Detection

2012 ◽  
Vol 501 ◽  
pp. 561-565 ◽  
Author(s):  
Yi Hu Huang ◽  
Hong Lei Chong ◽  
Man Hu ◽  
Xi Mei Jia ◽  
Wen Long Liu ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Status Monitoring ◽  
Detection Technology ◽  
Emission Testing ◽  
On Line ◽  
Acoustic Emission Testing ◽  
Non Destructive ◽  
Early Damage

The safety of the tank in duty is an important problem in engineering. Acoustic Emission testing is a dynamic online detection technology for non-destructive testing, which can provide continuous on-line status monitoring for equipments and give early damage warning. In the tank loading process, the sensors can detect the signals of the tank based on the principle of Acoustic Emission and determine the defect location. With this technology, we can monitor and evaluate the tank's safety in production.

Advanced Evaluation of Fatigue Phenomena Using Non-Destructive Testing Methods

2016 ◽  
Vol 879 ◽  
pp. 1841-1846 ◽  
Author(s):  
Peter Starke ◽  
Hao Ran Wu ◽  
Christian Boller
Keyword(s):  
Fatigue Life ◽  
Damage Evolution ◽  
Structural Integrity ◽  
Residual Life ◽  
Fatigue Behavior ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Physically Based ◽  
Damage Condition ◽  
Non Destructive

The comprehensive characterization of the change in metallic materials’ microstructure due to an applied load is of prime importance for the understanding of basic fatigue mechanisms or more general damage evolution processes. If those mechanisms and processes are to be understood to a much greater extent, advanced fatigue life calculation methods being far away from linear damage accumulation models, have to be realized providing more than “classic fatigue data” only. Among others the PHYBAL (physically based fatigue life calculation) method including current enhancements and a thereon-based development named SteBLife (step-bar fatigue life approach) have been developed over the last 10 years. These methods allow the efforts in experimentation to be reduced by more than 90 % and therefore offer the possibility to take further fatigue relevant parameters into account. This therefore allows a variety of S,N-curves dependent on those fatigue relevant parameters to be generated with those methods easily establishing a multidimensional dataset. To just name a few examples of those parameters such as the influence of temperature, loading conditions, geometry as well as thermal and mechanical ageing processes on the fatigue behavior can now be calculated in accordance to a process being straightforward leading to an important step with regard to improving the efficiency of assessing structural components. Consequently, safety factors can be defined more in accordance to structural needs, being of highest interest with respect to the increasing number of ageing infrastructure such as highways, bridges or others. A lot of this ageing infrastructure has a strong need to be managed with respect to its structural integrity and the engineering community therefore tries the residual life of this infrastructure to be determined as appropriate as possible. In that context non-destructive testing parameters are increasingly considered to characterize a metallic material’s microstructure allowing more precise information to be obtained regarding the actual damage condition and the integrity of a component. The paper will address the high capability of non-destructive testing techniques for the evaluation of damage evolution processes also with respect to mechanism based fatigue as well as residual life calculations according to PHYBAL and SteBLife.

scholarly journals Safety Evaluation of Quayside Container Crane based on Stress Test

2021 ◽  
Vol 257 ◽  
pp. 03071
Author(s):  
Jun Qiu ◽  
Zheng-qiu Huang ◽  
Li-xin Ren ◽  
Yao-ting Tong
Keyword(s):  
Stress Test ◽  
Safety Evaluation ◽  
Metal Structure ◽  
Technical Condition ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Container Crane ◽  
Potential Safety ◽  
Non Destructive ◽  
Quayside Container Crane

Due to the long service life of a quayside container crane in an enterprise, there is slight corrosion on the surface of metal structure, which has potential safety hazard. In order to master the technical condition of the metal structure of the crane, the stress distribution and change information of the crane are obtained by dynamic and static stress testing and non-destructive testing. According to the analysis and test results, the safety assessment of the whole machine is completed and reasonable management suggestions are put forward.

The Use of the Vibroacoustic Method for Monitoring the Technical Condition of Aero Engines with Extended Time between Overhauls

2015 ◽  
Vol 220-221 ◽  
pp. 283-288
Author(s):  
Jarosław Spychała ◽  
Paweł Majewski ◽  
Mariusz Żokowski
Keyword(s):  
Operating System ◽  
Service Life ◽  
Technical Condition ◽  
Extended Time ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Current State ◽  
Turboprop Engine ◽  
Aero Engines ◽  
Non Destructive

The article presents some aspects of several years of work on the use of the vibroacoustic method (Non-Destructive Testing) for assessing a turboprop engine from a trainer aircraft. The functioning engine does not have an operating system for measuring vibration, and therefore the current levels of vibrations and its changes in trends are not known. In order to extend its service life, performing a number of works was required. On the basis of assessing the current state of the engine, opportunities for further exploitation were identified thus developing methodology for evaluating technical condition regarding the whole population. The paper shortly describes the object and equivalent tests on the engine. The article focuses on the methods prepared for extending life between overhauls required for turboprop engines and discusses the results received during their implementation.

scholarly journals Improving the methodology for assessing the technical condition of equipment during the transportation of energy carrier in energy systems and complexes

2019 ◽  
Vol 124 ◽  
pp. 01021
Author(s):  
S. O. Gaponenko ◽  
R. Z. Shakurova ◽  
A. E. Kondratiev ◽  
R. Dimova
Keyword(s):  
Energy Systems ◽  
Technical Condition ◽  
Technical Solution ◽  
Topical Issue ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Transportation Equipment ◽  
Diagnostic Complex ◽  
Energy Transportation ◽  
Non Destructive

The stable and uninterrupted work of the energy sector enterprises largely determines the economic development of the country. At the same time, the reliability of energy systems and complexes depends on the technical condition of the energy transportation equipment. In this regard, there is an urgent need to monitor the technical condition of the equipment. Currently, there are various types of non-destructive testing used for diagnostics, but none of them is universal, and many of them only allow to find defects of a certain type. In this connection, there is a topical issue of improving the methods for assessing the technical condition of equipment during the transportation of energy carriers in energy systems and complexes. This paper presents an information and diagnostic complex that implements the proposed technical solution and tests the methodology.

scholarly journals CALCULATION OF RESIDUAL LIFE OF A BUILDING USING PROBABILISTIC METHODS AND GRAPH THEORY

2020 ◽  
Vol 2 (5) ◽  
pp. 5-12
Author(s):  
M. Shutova ◽  
S. Evtushenko
Keyword(s):  
Graph Theory ◽  
Residual Life ◽  
Technical Condition ◽  
Probabilistic Methods ◽  
Truss Structures ◽  
Complex Method ◽  
Destructive Testing ◽  
Roof Structure ◽  
The City ◽  
Non Destructive

methods and approaches to determining the residual resource of construction objects are considered, methods are analyzed to select the optimal one. To calculate the residual life of structures of the industrial workshop in the city of Saratov, a complex method was applied based on probabilistic methods (for structures whose strength characteristics were determined by non-destructive testing) and using graph theory (for other structures, the technical condition of which was established by external signs ) The established value of the residual resource (time before the onset of an inoperative state) before the reconstruction was 3.8 years, taking into account the operation of structures in the industrial enterprise mode. The residual resource of the building in the mode of the shopping center was 18.1 years, taking into account the reduction in operational loads (there are no crane loads, the roof structure was changed), this resource is insufficient for the object put into operation. In the process of reconstruction, communications, external and internal decoration, improvement of the adjacent territory were restored, truss structures were strengthened, the structures of the coating and external walls were partially replaced. The technical condition of the building was improved, which is reflected in the residual life - 64.7 years, which is more than the design life for buildings of this type. Therefore, a comprehensive calculation of the residual resource is an effective method for determining the scope and types of work on reconstruction and restoration of buildings.

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