A Simplified working procedure in designing the bearing bush for a 6” water-cooled submersible motor

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2015 by IJETT Journal
Volume-30 Number-3
Year of Publication : 2015
Authors : Patankar Rohit C, Mirza M.M, Gundale V.A
DOI :  10.14445/22315381/IJETT-V30P229

Citation 

Patankar Rohit C, Mirza M.M, Gundale V.A"A Simplified working procedure in designing the bearing bush for a 6” water-cooled submersible motor", International Journal of Engineering Trends and Technology (IJETT), V30(3),155-158 December 2015. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Abstract
This paper presents a simple, working and verified design procedure for the bearing bush for a 6" water-cooled submersible motor. The paper shows the relation between eccentricity ratios, the limit for stable operation of a bearing bush system. Once the fluid film pressure is found out then load carrying capacity will have to be calculated. The power rating, speed, and weight of rotor must be known in order to estimate the torque and finally, we will get calculated diameter of the journal. From the electrical consideration, the paper shows how the useful torque and useful force can be referred in order to establish journal diameter. This simplified procedure presented in this paper will help the manufacturers in designing correct size of bearing bush for a specific motor. The resulting dimensions of bearing bush can be considered for the to generate a 3D cad model in order to conduct the FSI (Fluid Structure interaction) analysis.

 References

[1] IS 9283:2013, Indian standard Motor for submersible pump sets – specification second revision
[2] J.Thomson, et, al. "Development of lead-free bearing material for aerospace application ", International journal for metal casting, 2010, ISSN 1939-5981.
[3] Wojciech Labuda, et, al. "The analysis of finishing tooling influence on corrosion properties researched by potentiodynamic method", Journal of KONES Powertrain andTransport, Vol.19, No.12012, ISSN: 1231-4005
[4] Stefan Dzionk, et, al. " Surface waviness of components machined by burnishing method", Archive of mechanical technology and automation, Vol.32 no.3 2012.
[5] 6-Inch submersible motor [online], Available: htpp://www.franklinwater.com/product/motorscontrols/ 6-inch submersible-motor/as visited on 17/10/205
[6] 6”Submersible motors, [online] Available: htpp://www.virasubmersible.com/product/6-inchsubmersible- motor-water-filled.html, visited on 17/10/2015
[7] H. Hirani, et, al. “ Rapid performance evaluation of journal bearing”, Tribology International volume 30, Issue 11, Page 825-834
[8] A.K.Sawhney, A.Chakrabarti, “Electrical Machine Design”, Dhanpat rai publication,2007. ISBN 8177001013
[9] Hamid, A.Toliyat, “Handbook of electric motor” Page 167-214, ISBN9781420030389.
[10] Dinesh dhande , et,al. “Analysis of hydrodynamics journal bearing using fluid structure interaction approach ”, IJETT, volume 4 august 2013, page 3389-3392

Keywords
6" submersible motor, Bearing Bush, Fluid film pressure, useful torque, FSI.