Article Sidebar

Download
PDF
Statistic
Read Counter : 170 Download : 42

Downloads

Download data is not yet available.

Main Article Content

Abstract

The article presents the results of a computational and experimental study of the dynamic loading of the powertrain system of the transport vehicles, which include a diesel engine and a hydromechanical transmission. The purpose of the study is a computational and experimental substantiation of the applicability of torsion bar spring between the engine and transmission as a torsional oscillation damper in the powertrain system with diesel engines of increased power and high-density arrangement of the block elements, which makes it difficult to apply traditional measurement methods. The novelty of the research consists in the development of a new method to determine experimentally the dynamic torque in the powertrain system, characterized by the fact that during processing, the signal of the engine shaft speed sensor is digitized and transmitted to the recording and processing device. Based on the direct Fourier transform, the amplitude-frequency response function of the torque is determined, including the main motor harmonics, harmonic components formed by the crankshaft and connecting rod and gas valve timing mechanisms of the engine, the generator drive, oscillations in the transmission, etc. It is established that the reason for the torsion bar springs durability limitation is their operation in off-design powertrain system modes, due to the occurrence of a phenomenon called «collision of tasks». Based on probabilistic calculation methods, it is shown that when such modes occur, the probability of failure of elastic torsion bar increases from 0.0001 to a shocking 0.29. According to the research results, it is concluded that torsion bar springs are applicable as torsional vibration dampers in high-duty powertrain systems.

Keywords

Dynamic loading Powertrain system Transmission and drivetrain Torsion bar Contactless method

Article Details

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

References

  1. A. Milasinovic, I. Filipovi, Z. N. Milovanovic, and D. M. Knežević, “Determination of the engine torque of a four cylinder four stroke diesel engine on the basis of harmonic analysis of the crankshaft’s angular velocity,” Transactions of FAMENA, vol. 35, no. 4, pp. 55–65, 2011.
  2. X. Wang, “Effect of AVL-based time-domain analysis on torsional vibration of engine shafting,” Journal of Vibroengineering, vol. 26, no. 6, pp. 1284–1300, Sep. 2024, doi: 10.21595/jve.2024.24143.
  3. M. A. Klesso, “Parameter Selection of Four-Cylinder Diesel Torsional Vibration Dampers,” Mechanics of Machines, Mechanisms and Materials, vol. 4, no. 57, pp. 27–32, Dec. 2021, doi: 10.46864/1995-0470-2021-4-57-27-32.
  4. O. U. Usov, M. G. Gusev, A. L. Loyko, and A. M. Makarov, “Electromechanical transmission for military tracked vehicle with hybrid power plant,” St. Petersburg State Polytechnical University Journal, vol. 219, no. 2, pp. 167–174, Jun. 2015, doi: 10.5862/JEST.219.18.
  5. G. S. Beloutov, “Mathematical model for calculating the dynamic loads in the input transmission elements during the passage of the resonance zone at engine starting,” in Aktualnye problem zashchity I bezopasnosti: Trudy XVII Vserossijskoj nauchno prakticheskoj konferencii RARAN (1-4 aprelya 2014 g.), 2014.
  6. I. Taratorkin, V. Derzhanskii, and A. Taratorkin, “Oscillation damping in the power unit when starting the engine equipped with the Common Rail system,” MATEC Web of Conferences, vol. 224, p. 02037, Oct. 2018, doi: 10.1051/matecconf/201822402037.
  7. Bosch, Diesel engine control systems [In Russian]. Moscow: Za rulem Publ., 2004.
  8. V. A. Shushkevich, Fundamentals of electrotensometry [In Russian]. 1975.
  9. D.-C. Lee, M.-H. Song, and S.-H. Kim, “Measurement and Assessment on the Shaft Power Measurement of Diesel Engine using Strain Gauge in Marine Vessel,” Journal of the Korean Society of Marine Engineering, vol. 33, no. 8, pp. 1152–1161, Nov. 2009, doi: 10.5916/jkosme.2009.33.8.1152.
  10. Y. P. Manshin, E. Yu Manshina, and M. Geue, “About the dynamic error of strain gauge torque measuring devices,” Journal of Physics: Conference Series, vol. 2131, no. 5, p. 052041, Dec. 2021, doi: 10.1088/1742-6596/2131/5/052041.
  11. A. M. Shcherbin, “Modern on-board information and control systems of automotive technology [In Russian],” Zhurnal avtomobil’nykh inzhenerov, vol. 3, 2015.
  12. V. A. Kotel’nikov, Problems of noise-immune radio communication: radio engineering collection [In Russian]. Gosenergoizdat, 1947.
  13. N. N. Andreyev, “Founder of domestic classified telephone communications [In Russian],” Radiotekhnika - Radio engineering, vol. 8, 1998.
  14. C. E. Shannon, “A Mathematical Theory of Communication,” Bell System Technical Journal, vol. T.27, no. C.379-423, p. 623—656, 1948.
  15. P. Gaydecki, Foundations of Digital Signal Processing: Theory, Algorithms and Hardware Design. University of Chicago Press, 2004.
  16. N. E. Huang et al., “The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis,” Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, vol. 454, no. 1971, pp. 903–995, Mar. 1998, doi: 10.1098/rspa.1998.0193.
  17. PowerGraph, “User Manual [In Russian],” Power Graph. [Online]. Available: http://www.powergraph.ru
  18. Society of Automotive Engineers, SAE J1939-71 — Vehicle Application Layer Issued 1994-08, Revised 2003-12. 1994.
  19. S. O. Rice, “Mathematical Analysis of Random Noise,” Bell System Technical Journal, vol. 24, no. 1, pp. 46–156, Jan. 1945, doi: 10.1002/j.1538-7305.1945.tb00453.x.
  20. M. Stroyizdat, Application of methods of probability theory and reliability theory in calculations of structures [In Russian]. 1971.
  21. M. Abramowitz, I. A. Stegun, and R. H. Romer, “Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables,” American Journal of Physics, vol. 56, no. 10, pp. 958–958, Oct. 1988, doi: 10.1119/1.15378.
  22. M. Stroyizdat, Theory of calculation of building structures for reliability [In Russian]. 1978.