Filters








15 Hits in 4.7 sec

Introduction to the Examination of Thin-Walled Structures Using the Vibrodiagnostic Method

Adam Szeleziński, Adam Muc, Lech Murawski, Do Van Doan
2019 Journal of KONES Powertrain and Transport  
It enables measurements to be made in both a contact and non-contact way depending on the requirements of the structure and the environment.  ...  Vibrodiagnostic method is one of the most modern NDT methods, which uses modern measurement tools and computer analysis of data.  ...  universal method) and requires expert evaluation, and is therefore less suitable for automatic monitoring systems of the SHM type.  ... 
doi:10.2478/kones-2019-0114 fatcat:yjkxf3nr5rbnrevbewnyvce2um

VIBRODIAGNOSTICS OF ROLLING BALL BEARINGS CONNECTED WITH PROCESSING, RESULT´S COMPARISON AND PREDICTION OF SERVICE LIFE

Peter ŠULKA, Alžbeta SAPIETOVÁ, František BÁRNIK
2020 Scientific Journal of Silesian University of Technology. Series Transport  
INTRODUCTION Measurement, data processing and mechanical vibration analysis are an integral part of the diagnostic system for monitoring the operating conditions of mechanical parts and machinery (roller  ...  Calibration diagram of RMS and deformation in the radial direction Vibrodiagnostics of rolling ball bearings connected… 195. Fig. 15.  ... 
doi:10.20858/sjsutst.2020.106.16 fatcat:bfirquspkvhoda5nthl545b2qy

EVALUATION OF THE INSULATION CONDITION OF HIGH-VOLTAGE TRANSFORMERS BY DETECTING PARTIAL DISCHARGES USING THE ELECTROMAGNETIC WAVE RADIATION METHOD

Vilius Malažinskas, Renaldas Raišutis, Alfonsas Morkvėnas, Saulius Gudžius, Audrius Jonaitis, Jonas Vaičys, Gediminas Daukšys
2021 Materiali in Tehnologije  
This work reviews different contact and non-contact methods, used to evaluate the conditions of transformers by measuring the level of PD.  ...  The selected method, i.e., the non-contact measurement of electromagnetic-wave radiation was used to evaluate the voltage-transformer status. The experiment was performed at a 110 kV substation.  ...  We need to propose a method that would allow us to schedule the device's repair time and perform the examination according to the condition of the insulation, using the obtained data.  ... 
doi:10.17222/mit.2020.175 fatcat:kngsgwyd2nb5tcmh5f4jf24kl4

Identification of the Technical Condition of Roller Bearings by means of Vibrodiagnostics and Tribodiagnostics

Jan Furch, Josef Glos, Trung Tin Nguyen
2017 Transactions of FAMENA  
The aim of the experiment was to measure vibrations of the bearings placed in the vehicle bearing box and then to carry out the analysis of the measured data.  ...  One of the possibilities of determining the technical condition, including the location of accelerometers, the arrangement of relevant measured devices, and the analysis of frequency spectrum, is described  ...  Acknowledgement The presented study has been prepared with the support of the Ministry of Defence of the Czech Republic, Partial Project for Institutional Development and Specific Research, Department  ... 
doi:10.21278/tof.41309 fatcat:h466eubylrgnvkh4etthzorxgy

Prognosis and Health Management in electric drives applications implemented in existing systems with limited data rate

B. Klima, L. Buchta, M. Dosedel, Z. Havranek, P. Blaha
2019 2019 24th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA)  
etc. for development of sophisticated methods to detect specific faults with good sensitivity, robustness and reliability under any operating condition.  ...  of the condition monitoring and predictive maintenance in motion systems is growing up as motion systems quantum and their complexity (number of axes, performance parameters) increases with increasing  ...  This approach can be applied also for the above mentioned ways -to sense e.g. phase currents of the motor by a non-contact sensors (e.g.  ... 
doi:10.1109/etfa.2019.8869520 dblp:conf/etfa/KlimaBDHB19 fatcat:s3y5t4olbjcndfrvlkpoqex25y

The Influence of Material on the Operational Characteristics of Spur Gears Manufactured by the 3D Printing Technology

Aleksandar Dimić, Žarko Mišković, Radivoje Mitrović, Mileta Ristivojević, Zoran Stamenić, Ján Danko, Jozef Bucha, Tomáš Milesich
2018 Strojnícky casopis – Journal of Mechanical Engineering  
One of the most famous and the most applied additive technology is 3D printing.  ...  In this paper the influence of the material type on the operational characteristics of spur gears manufactured by the 3D printing technology is analyzed, after the experimental testing performed on a back  ...  for the support of the bilateral project No.  ... 
doi:10.2478/scjme-2018-0039 fatcat:3oqci2boqfam3e2lvwbcbsjxri

Measurement of Static Stiffness after Motion on a Three-Axis CNC Milling Table

Tomáš Stejskal, Jozef Svetlík, Miroslav Dovica, Peter Demeč, Ján Kráľ
2017 Applied Sciences  
This paper deals with a modified methodology for measuring the static stiffness of the machine tool.  ...  An important takeaway from the measurements is that the measured static stiffness of the table depends greatly on the previous work performed thereon and on the method of the load application onto the  ...  The founding sponsors had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, and in the decision to publish the results.  ... 
doi:10.3390/app8010015 fatcat:lq6uevorobgkvhoaeoi2iz5fee

Acoustic Emission Monitoring of Industrial Facilities under Static and Cyclic Loading

Sergey Elizarov, Vera Barat, Denis Terentyev, Peter Kostenko, Vladimir Bardakov, Alexander Alyakritsky, Vasiliy Koltsov, Pavel Trofimov
2018 Applied Sciences  
Architecture of SHM-system and specific data analysis procedures are proposed.  ...  draglines on the basis of AE method.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/app8081228 fatcat:kismzmffzzco7hdksjjcfmjary

Proactive approach to smart maintenance and logistics as a auxiliary and service processes in a company

Miroslav Rakyta, Miroslav Fusko, Jozef Hercko, Ľudmila Závodská, Nenad Zrnic
2016 Istrazivanja i projektovanja za privredu  
The logistics of tomorrow will be supported, to a high extent, by logistics assistance systems.  ...  For its successful implementation it is necessary to introduce appropriate management practices also into the area of maintenance.  ...  ACKNOWLEDGEMENT This paper is part of research supported by project KEGA 043 ŽU-4/2014.  ... 
doi:10.5937/jaes14-11664 fatcat:nuigyg2ll5bc7jolbhvywkudj4

A Novel Extension for e-Safety Initiative Based on Developed Fusion of Biometric Traits

Khalid Saeed, Marcin Adamski, Adam Klimowicz, Anna Lupinska-Dubicka, Miroslaw Omieljanowicz, Grzegorz Rubin, Mariusz Rybnik, Maciej Szymkowski, Marek Tabedzki, Lukasz Zienkiewicz
2020 IEEE Access  
The authors utilize biometric methods in object detection such as Viola-Jones and Single Shot MultiBox Detector for face localization, and You Look Only Once for whole body detection.  ...  Safety is one of the central elements of society functioning. The eSafety aims at increasing road safety through the use of intelligent integrated safety systems.  ...  For that reason it is suggested to perform an accurate calibration of the gyroscope during system initialization.  ... 
doi:10.1109/access.2020.3015503 fatcat:ymaq7rh33zbwno6piaapmd3evi

RADA PROGRAMOWA / PROGRAM COUNCIL

Jan Adamczyk Agh, Krakowie Aymerich, Akademia Morska, Gdyni Cheng, Politechnika Warszawska, Randall, Raj Rao, Redakcja Diagnostyki, Katedra Budowy, Eksploatacji Pojazdów, Maszyn
unpublished
non-overlapping blocks of the STFT and X i (f) is the DFT of the i th block of data.  ...  issue, since calibration would have to be done separately for each of the ranges.  ...  Such an identification is carried out by the method of experimental modal analysis and by energy-based methods with the use of a mechatronic accelerated testing station.  ... 
fatcat:234fyebocneudoadbtklbhlqui

Applied Structural Health, Usage and Condition Monitoring

Jan Adamczyk Agh, Krakowie Aymerich, Akademia Morska, Gdyni Cheng, Politechnika Warszawska, Randall, Raj Rao, Keith Worden, Politechnika Śląska, Gajraj Singh, Yadava, Redakcja Diagnostyki (+3 others)
2013 PTDT   unpublished
ACKNOWLEDGEMENTS The authors wish to thank the Inter Departmental Research Center INTERMECH MoRE of the University of Modena and Reggio Emilia for the financial support.  ...  ACKNOWLEDGEMENTS The work presented in this paper was supported by funding from the WELCOME research project No. 2010-3/2, sponsored by the Foundation for  ...  Therefore, a lot of non-contact measurement techniques have been developed. The vision systems can be a good alternative to other types of transducers.  ... 
fatcat:qfmhsnmeurgyjehrlqmqs2bx3y

RADA PROGRAMOWA / PROGRAM COUNCIL

Politechnika Warszawska, Randall, Raj Rao, Dr Gajraj, Singh Yadava
unpublished
ranges for a state of usability and non-usability.  ...  method does not need special conditions of acoustic contact.  ...  of torque measurement and fuel consumption have been estimated under the method for diagnosing internal combustion engine in traction conditions; 9. based on performed tests and analyses of their results  ... 
fatcat:wljromtvlvacdkwko626vbiafu

Advisory/Editorial Board International Advisory/Editorial Board Heat Exchanger Technology : Energy Sources for Future

Shardul Agravat, Vaishali Kalaria, B Jethva, Bakul Panchal, Bhavesh Prajapati, Syed Umar, Rahul Joshi, Prakashchandra, India Aftab, Alam Tyagi, Prof, Umesh Kumar (+18 others)
unpublished
The interference fit is a type of model for non-linear analysis with the contact region in the contact surface. The computational method is Newton-Raphson method.  ...   Camera calibration (finding and tracking calibration patterns, calibration, fundamental matrix estimation, homography estimation, stereo correspondence).  ...  The existence of the system "subconsciousness + consciousness" is a necessary condition for creativity.  ... 
fatcat:wzdwli5rubcqlexjjd7zb3oz2y

Departments of Mechanical engineering and General Technical Sciences, at Technical Faculty "Mihajlo Pupin

Dragiša Tolmač, Slawomir Kurpaska, Miroslav Lambić, Uroš Karadžić, Valentina Balas, Aurel Vlaicu, Mirko Soković, Zlatko Lacković, Macedonia, Bojan Podgornik
unpublished
of research projects, establishing new contacts with leading national and international institutions and universities; popularization of the faculty and its leading role in our society and the immediate  ...  practical problems; interconnection and business contacts; introducing professional and business organizations with results of scientific and technical research; presentation of scientific knowledge and  ...  Finally, defuzzify on the basis of gravity method, and then the three parameters p ACKNOWLEDGEMENTS  ... 
fatcat:m6g5aowfjngtnaqexmljlsc7ym