Dimitar Petkov Karaivanov

 

Born on 09.04.1958

 

Graduated at the Òechnical  University – Sofia

 

Associate Professor (Dozent), PhD

 

Areas of work:

Planetary gear trains. 

Handling and storage machines.

 

Worked in ÊÅ „6th of September” (electrical trucks plant) as a head of the „Lifting equipment” department and in University of Chemical Technology and Metallurgy – Sofia as Professor of „Machinery and Machine elements”.

 

Author of 40 scientific publications (13 abroad), 5 handbooks for students of UCTM – Sofia and 1 patent. Noticed 16 citations (10 abroad).

 

Main scientific-research contributions and works:

Development of methods for engineering, kinematic and power analysis of coupled multi-carrier planetary gears.

Theoretical-experimental study of planetary gear trains and their optimization.

Dynamic studies of handling machines with stiff load suspension.  

 

International cooperation:

Cooperation in scientific projects with the Dept. of Theoretical Mechanics and Science of  Machines and Machinery, Institute of Machinery, National Polytechnic University of Odessa, Ukraine.

Co-mentor of a post-graduate student from Dept. of Mechanical Engineering Design, Faculty of Engineering, University of Rijeka, Croatia.

 

 

Publications in the last years:

 

1.      Arnaudov, K., Karaivanov D. Engineering Analysis of Two-carrier Planetary Gearing through the Lever Analogy.// Proceedings of the International Conference on Mechanical Transmissions, April 5 –9, 2001, Chongqing, China, China Machine Press, p. 44 – 49.

 

2.      Karaivanov, D. Multy-parametric Choice of Two-stage Planetary Gear, Proceedings of the “Technology, Assurance, Ecology” 21–22 June 2001, V. Tarnovo, Bulgaria, p. 49 – 59. (in Bulgarian)

 

3.      Karaivanov, D., Guenov M. Some advantages of brakes with linearly increasing brake torque, used in travelling mechanisms of handling machines with stiff load suspension.// Proceedings of the 3rd Int. Congress “Mechanical Technologies’01”, Sofia, 24 – 26 June 2001, p. 404 – 407. (in Bulgarian)

 

4.      Karaivanov, D. On the subject of determining the mechanical system parameters in dynamic simulation of metallurgical cranes.// First National Conference on Recent Advances in Mechanical Engineering, 17 – 20 September 2001, Patras, Greece. (CD-R)

 

5.      Karaivanov, D. Arnaudov K. A study of two- and three-driven planetary gearings  by using the lever analogy.// Proceedings of the 9th National Congress on Theoretical and Applied Mechanics, Volume 1, Varna, Bulgaria, 19 – 22 September 2001, p. 351 – 356.

 

6.       Karaivanov, D. On application of chain transmissions in handling machines.// 6th Int. Conference on Machinery and Technology, Sozopol, Bulgaria, 3 – 5 October 2001, v. 2, p. 121 – 125. (in Bulgarian)

 

7.      Karaivanov, D. Dynamic models of metallurgical cranes. Journal of the University of Chemical Technology and Metallurgy, Volume XXXVI, Book 2, Sofia 2001, ð. 61 – 68.

 

8.      Karaivanov, D. Peculiarities of the power calculations of a forks moving mechanism of S/R machine.// “Mashinostroene”, 2002, No. 3, p. 8 – 11. (in Bulgarian)

 

9.      Karaivanov, D. On deformational dimensioning of telescopic forks of S/R machines.// “Mashinostroene”, 2002, áð. 5-6, p. 15 – 17. (in Bulgarian)

 

10.  Karaivanov, D. On the work regime of automated storehouses.// Õ² National Scientific Conference ‘Automatization of Manufacture’, 10 – 11 June 2002. - Proceedings of  STU, ²Õ (2002), v. 2 (58), p. 257 – 262. (in Bulgarian)

 

11.  Karaivanov, D. On the dynamic loading of rail road material handling machines with stiff load suspension.// Research and Development in Mechanical Industry RaDMI 2002, Proceedings , Volume 1, Vrnjačka Banja, Yugoslavia, 01 – 04 September 2002, ð. 231 – 236.

 

12.  Karaivanov, D. Arnaudow K. Die Zusammengesetzen Mehrsteg-Planetengetriebe und ihre Gesetzmäßigkeiten.// Zbornik radova sa Naučno-stručnog skupa Istraživanje i razvoj mašinskih elementa i sistema JAHORINA – IRMES’2002, 1/2, Srpsko Sarajevo - Jahorina, 19. i 20. September 2002, p. 19 – 26. (Plenary paper)

 

13.  Karaivanov, D. Handling machines gearings and their optimal choice. // Zbornik radova sa Naučno-stručnog skupa Istraživanje I razvoj mašinskih elementa i sistema JAHORINA – IRMES’2002, 2/2, Srpsko Sarajevo - Jahorina, 19. i 20. September 2002, ð. 685 – 690.

 

14.  Karaivanov, D. On a method of storing large length loads.// Proceedings of 1st International Conference on Manufacturing Engineering (ICMEN), 3 – 4 October 2002, Sani, Halkidiki, Greece, ð. 825 – 830.

 

15.  Arnaudow, K., Karaivanov D. Coupled multi-carrier planetary gears, their systematics, properties and abilities. // Proceedings of Int. Conf. "Power Transmissions'03", 11 – 12 September 2003, Varna, v. 1, p. 52 – 59. (Plenary paper)

 

16.  Karaivanov, D., Arnaudov K. Experimental determination of a coupled two-carrier planetary gear's efficiency. // Proceedings of Int. Conf. "Power Transmissions'03", 11 – 12 September 2003, Varna, Bulgaria, v. 3, p. 82 – 83.

 

17.  Karaivanov, D. A new friction damper for S/R machine's column oscillations. // Proceedings of  the 3rd Int. Conf. "Research and Development in Mechanical Industry" RaDIM 2003, 19 –23 September 2003, Herceg Novi, Serbia and Montenegro, p. 1789 – 1792.

 

18.  Karaivanov, D., Popov R. Experimental study on the clearances of the two-stage planetary gear. // Journal of the University of Chemical Technology and Metallurgy, XXXVIII, 4 (2003), p.1331 – 1338.

 

19.  Arnaudow, K., Karaivanov D. Raum- und Massesparende Zahnradgetriebe. // Proceedings of the 3rd  Conference about Construction, Shaping & Design. Novi Sad, 19.05.2004, p. 73 – 78.

 

20.  Arnaudow, K., Karaivanov D. Die Blindleistung in Planetengetrieben. // Proceedings of the Conference on Research and Development of Machine Elements and Sistems IMRES’04. Kragujevac, (SCG), 16 –  17 September 2004, p. 587 – 594.

 

21.  Karaivanov, D. Some features of teaching Machine Elements in technological universities.// Proceedings of the Conference ‘Machinery and Machine Elements 2004’, Sofia, pp. 37 – 43. (in Bulgarian)

 

22.  Arnaudow, K., Karaivanov D. Systematik, Eigenschaften und Möglichkeiten von zusammengesetzten Mehrsteg-Planetengetrieben.// “Antriebstechnik” (2005) 5, p. 58-65.

 

23.  Arnaudov, K., Karaivanov D. Higher compound planetary gear trains. // VDI – Berichte 1904 – 1 (Int. Conf. on Gears, September 14th to 16th, 2005, Garching near Munich, Germany), pp. 327 – 344.

 

24.  Karaivanov, D. Structural analysis of the coupled planetary gears with considering the efficiency of the coupling gears. // Proceedings of the 2th Int. Conf. on Manufacturing Engineering (ICMEN), October 5 – 7, 2005, Kallithea of Chalkidiki, Greece, p. 381 – 387.

 

25.  Karaivanov, D., Troha, S. On the structural Analysis of Coupled Planetary Gears.// “Machinebuilding and electrical engineering” special edition – science edition Nr. 9, 2005, p. 76 – 83

 

26.  Arnaudow, K., Karaivanov, D. Das Wolfrom-getriebe - ein fall kompliziertester gekoppelten profilverschiebungen.  // Zbornik radova IRMES’06, Banjaluka – Mrakovica, 21 – 22 septembar 2006, p. 191 – 198

 

27.  Karaivanov, D., Troha, S. Examining the possibilities for using coupled two-carrier planetary gears in two-speed mechanical transmissions. // “Machinebuilding and electrical engineering”, Nr. 5 – 6, 2006, p. 124 – 127

 

28.  Troha, S., Karaivanov, D. Experimental comparative analysis of the manufacturing quality of planetary gear trains. // Proceedings of the 25th Int. Conf. ÌÒF’2007, v. ²², Sozopol, Bulgaria, 14 -16 September 2007, p. 259 – 264.

 

1.      Kazakoff, A., Karaivanov D., Troha S. Crane dynamics in a vertical base plane. // Comtes rendum de l’Académie bulgare des Sciences, 60, No 10, 2007, p. 1077 – 1084

 

 

HANDBOOKS

 

1.      Popov, R., D. Mileva, L. Kamburova, D. Karaivanov, I. Lessev, V. Slavov. Handbook on machine drawing. Sofia, Tehnika, 1994.

 

2.      Êaraivanov, D. Exercises handbook on machinery – part III (Band conveyer design). Sofia, 2002.

 

3.      Popov, R., D. Mileva, L. Kamburova, D. Karaivanov, I. Lessev, V. Slavov, G. Pandev. Handbook on machine drawing. Sofia, Tehnika, 2003.

 

4.      Êaraivanov, D., R. Popov Exercises handbook on machinery – part I (Valves design). Sofia, 2004.

 

5.      Karaivanov, D., R. Popov, V. Vasileva, N. Ivanova. Manual for choice of rolling bearings from e-catalog. Sofia, 2005.

 

PATENT

 

BG 64714 B1 (13.12.2005): Friction damper of the oscillations of Storage/Re-storage machine.