{"id":7941,"date":"2021-08-31T18:59:14","date_gmt":"2021-08-31T15:59:14","guid":{"rendered":"http:\/\/journals.khnu.km.ua\/vestnik\/?p=7941"},"modified":"2021-09-06T14:10:08","modified_gmt":"2021-09-06T11:10:08","slug":"analysis-of-the-bma-k2400-vertical-centrifuge-turbine-in-terms-of-balancing-and-vibration-diagnostics","status":"publish","type":"post","link":"https:\/\/journals.khnu.km.ua\/vestnik\/?p=7941","title":{"rendered":"Analysis of the bma k2400 vertical centrifuge turbine in terms of balancing and vibration diagnostics"},"content":{"rendered":"

<\/p>\n

ANALYSIS OF THE BMA K2400 VERTICAL CENTRIFUGE TURBINE IN TERMS OF BALANCING AND VIBRATION DIAGNOSTICS<\/p>\n

\u0410\u041d\u0410\u041b\u0406\u0417 \u0412\u0415\u0420\u0422\u0418\u041a\u0410\u041b\u042c\u041d\u041e -\u0426\u0415\u041d\u0422\u0420\u0418\u0424\u0423\u0413\u041e\u0412\u041e\u0407 \u0422\u0423\u0420\u0411\u0418\u041d\u0418 BMA K2400 \u0412 \u0423\u041c\u041e\u0412\u0410\u0425 \u0411\u0410\u041b\u0410\u041d\u0421\u0423\u0412\u0410\u041d\u041d\u042f \u0422\u0410 \u0412\u0406\u0411\u0420\u0410\u0426\u0406\u0419\u041d\u041e\u0407 \u0414\u0406\u0410\u0413\u041d\u041e\u0421\u0422\u0418\u041a\u0418<\/p>\n

\"\"<\/a> \u0421\u0442\u043e\u0440\u0456\u043d\u043a\u0438: 71-80. \u041d\u043e\u043c\u0435\u0440: \u21163, 2021 (297)<\/strong><\/p>\n

\u0410\u0432\u0442\u043e\u0440\u0438:<\/strong>
\nMIKO\u0141AJ SZYCA, JANUSZ MUSIA\u0141
\nUTP University of Science and Technology, Bydgoszcz, Poland<\/p>\n

\u041c\u0418\u041a\u041e\u041b\u0410\u0419 \u00a0\u0428\u0418\u0426\u0410, \u042f\u041d\u0423\u0428 \u00a0\u041c\u0423\u0421\u042f\u041b
\n\u041d\u0430\u0443\u043a\u043e\u0432\u043e -\u0442\u0435\u0445\u043d\u0456\u0447\u043d\u0438\u0439 \u0443\u043d\u0456\u0432\u0435\u0440\u0441\u0438\u0442\u0435\u0442 UTP, \u0411\u0438\u0434\u0433\u043e\u0449, \u041f\u043e\u043b\u044c\u0449\u0430<\/p>\n

DOI:<\/strong> https:\/\/www.doi.org\/10.31891\/2307-5732-2021-297-3-71-80<\/a><\/u><\/p>\n

\u041d\u0430\u0434\u0456\u0439\u0448\u043b\u0430 \/ Received :\u00a0 <\/strong>22.05.2021 \u0440
\n\u041d\u0430\u0434\u0440\u0443\u043a\u043e\u0432\u0430\u043d\u0430\/Printed :<\/strong> 02.07.2021 \u0440.<\/p>\n

\u0410\u043d\u043e\u0442\u0430\u0446\u0456\u044f \u0430\u043d\u0433\u043b\u0456\u0439\u0441\u044c\u043a\u043e\u044e \u043c\u043e\u0432\u043e\u044e<\/strong><\/p>\n

Physical damage to a material is a diffuse defect in the form of vacancies, microcracks, micro-voids or damaged micro-volumes, which reduce the effective or load-bearing part of the material.\u00a0 Surface fatigue defects, such as deformation and cracks, occur in the bearing during the load transfer. Imbalance is a practical problem in the operation of many rotating machines, causing not only increased vibration of the machine, but also leading to accelerated wear of the rotor bearings. The subject of this work is the analysis of the dynamics of the BMA K2400 centrifuge in terms of the possibility of correcting the balance in the given dynamic state. The paper describes the individual stages of solving the problem of excessive machine vibrations, assuming that its bearings were replaced before the diagnostic test. As a result of the lack of effects after replacing the motor bearings and after analyzing the vibration measurement results presented in article, a decision was made to inspect the centrifuge bearings. The diagnostics was performed again, but it concerned only the bearing node No. 1 with the disassembled basket. The measurements were performed using the DIAMOND 401 AX device, equipped with Wilcoxon 780B acceleration sensors with a sensitivity of 100mV\/g.\u00a0 The appearance of a technological defect on the outer ring of the bearing, which is a friction pair with a housing, is not a typical damage for this type of machines and was an interesting problem. The consequence of the occurrence of bearing defects may be an increase in statistical values of the vibration signal and the appearance of new amplitudes in the FFT spectra. A vicious circle is created here, where bearings in poor dynamic condition increase the transmission of vibrations through the machine, and high vibrations accelerate the degradation of the bearings. The poor condition of rolling bearings may also prevent dynamic balancing of the rotor, and thus – lead to further propagation of bearing damage caused by an increased level of the machine’s own vibrations.<\/p>\n

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References<\/strong><\/p>\n

    \n
  1. Dwojak J., Rzepiela M. \u201eDiagnostyka drganiowa stanu maszyn i urz\u0105dze\u0144\u201d Biuro Gamma. Warszawa (2005). ISBN 83-87848-48-4.<\/li>\n
  2. Szyca M. \u201eAspects of transformation of exploitation top layer of rolling bearing race-way – rewiev\u201d Developments in Mechanical Engineering <\/em>16(9), (2021), (not yet published).<\/li>\n
  3. Wenzhong W., Lang H., Sheng-guang Z., Zi-qiang Z., Siyuan A. \u201cModeling angular contact ball bearing without raceway control hypothesis\u201d Mechanism and Machine Theory<\/em> 82, (2014): pp. 154-172, doi: 10.1016\/j.mechmachtheory.2014.08.006.<\/li>\n
  4. Khoroshun L., Shikula E. \u201cMesomechanics of deformation and short-term damage of linear elastic homogeneous and composite materials\u201d International Applied Mechanics<\/em> 43(6), (2007): pp. 591-620.<\/li>\n
  5. Majewski T., Szwedowicz D., Melo M., \u201cSelf-balancing system of the disk on an elastic shaft\u201d Journal of Sound and Vibration <\/em>359, (2015), pp. 2-20. doi: 10.1016\/j.jsv.2015.06.035.<\/li>\n
  6. Yamamoto G., da Costa C., da Silva Sousa, J. \u201cA smart experimental setup for vibration measurement and imbalance fault detection in rotating machinery\u201d Case Studies in Mechanical Systems and Signal Processing, <\/em>4, (2016), pp. 8-18. doi: 10.1016\/j.csmssp.2016.07.001.<\/li>\n
  7. Le-Dinh T. \u201cActive Balancing of Monorotor during Operation\u201d Collection of papers from Prof. Nguyen-Dang Hung’s former students, <\/em>(2010), pp. 218-228. ISBN-10: 3838326768.<\/li>\n
  8. Kejian J., Changsheng Z., Liangliang C. “Unbalance Compensation by Recursive Seeking Unbalance Mass Position in Active Magnetic Bearing-Rotor System” IEEE Transactions on Industrial Electronics<\/em>, 62(9), (2015), pp. 5655-5664, doi: 10.1109\/TIE.2015.2405893.<\/li>\n
  9. ISO 10816-3:2009\/AMD 1:2017 Mechanical vibration \u2014 Evaluation of machine vibration by measurements on non-rotating parts \u2014 Part 3: Industrial machines with nominal power above 15 kW and nominal speeds between 120 r\/min and 15 000 r\/min when measured in situ \u2014 Amendment 1.<\/li>\n
  10. ISO 20816-1:2016 \u201cMechanical vibration – measurement and evaluation of machine vibration: Part 1: General guidelines.\u201d<\/li>\n
  11. Sheraz A., Jong-Myon K. \u201cAutomated Bearing Fault Diagnosis Using 2D Analysis of Vibration Acceleration Signals under Variable Speed Conditions\u201d Intelligent Fault Diagnosis Based on Vibration Signal Analysis <\/em>2016, (2016), pp. 1070-9622, doi: 10.1155\/2016\/8729572.<\/li>\n
  12. Pineda-Sanchez M., Perez-Cruz J., Roger-Folch J., Riera-Guasp M., Sapena-Bano A., Puche-Panadero R. \u201cDiagnosis of induction motor faults using a DSP and advanced demodulation techniques\u201d Proceedings of the 9th IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED ’13)<\/em>, (2013), pp. 69\u201376. doi: 10.1109\/DEMPED.2013.6645699.<\/li>\n
  13. Randall R., Antoni J. \u201cRolling element bearing diagnostics\u2014A tutorial\u201d Mechanical Systems and Signal Processing <\/em>25(2), (2011), pp. 485-520, doi: 10.1016\/j.ymssp.2010.07.017.<\/li>\n
  14. ISO 21940-11:2016 \u201cMechanical vibration \u2014 Rotor balancing \u2014 Part 11: Procedures and tolerances for rotors with rigid behaviour\u201d<\/li>\n
  15. Zachwieja J. \u201eThe numerical modeling of the vertical rotor dynamics on the example of ACWW1000 centrifuge\u201d Diagnostyka<\/em> 33, (2005), pp. 301-306.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[51],"tags":[],"_links":{"self":[{"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=\/wp\/v2\/posts\/7941"}],"collection":[{"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7941"}],"version-history":[{"count":6,"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=\/wp\/v2\/posts\/7941\/revisions"}],"predecessor-version":[{"id":8002,"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=\/wp\/v2\/posts\/7941\/revisions\/8002"}],"wp:attachment":[{"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7941"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7941"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}